CN109672265B - Electric control bus-tie switch driving device and control method thereof - Google Patents
Electric control bus-tie switch driving device and control method thereof Download PDFInfo
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- CN109672265B CN109672265B CN201910156282.7A CN201910156282A CN109672265B CN 109672265 B CN109672265 B CN 109672265B CN 201910156282 A CN201910156282 A CN 201910156282A CN 109672265 B CN109672265 B CN 109672265B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Stand-By Power Supply Arrangements (AREA)
Abstract
The application relates to an electric control bus-tie switch driving device and a control method thereof. The electric control bus-bar switch driving device comprises a power supply device and a control device. The power supply device is used for providing power for the electric control bus-tie switch. The control device is provided with a first interface and a second interface, the first interface is connected in series with the power supply device, the first interface after the series connection is connected in series with a coil of the electric control bus-bar switch to form a closed loop, the second interface is connected in series with an auxiliary contact of the electric control bus-bar switch to form a closed loop, the first interface is used for controlling switching of the electric control bus-bar switch, and the second interface is used for detecting the switching state of the electric control bus-bar switch. The electric control bus-tie switch driving device can realize automatic control of the on-off action of the electric control bus-tie switch, provide effective and safe electric control bus-tie switch control for automatic discharging, ensure that automatic charging and discharging of the storage battery pack are smoothly carried out, and ensure the power supply safety of the backup power supply system.
Description
Technical Field
The application relates to the technical field of automatic control, in particular to an electric control bus-tie switch driving device and a control method thereof.
Background
For the safety of the power supply of the dc system, a double-electric double-charging dc system with two sets of storage batteries is generally used. In the dual-electric dual-charging direct current system, a first group of storage battery packs are connected to a section I direct current bus, and a second group of storage battery packs are connected to a section II direct current bus. The first group of storage batteries are in a main working state, and the second group of storage batteries are in a secondary standby floating charge state. The I section direct current bus and the II section direct current bus are connected through a manual mechanical bus-bar switch, and the manual mechanical bus-bar switch is in a normally open state under normal conditions.
Because the storage battery needs to be maintained at regular time, such as discharging, nuclear capacity, activating and the like, when the storage battery is manually discharged, a manual mechanical bus-bar switch needs to be manually closed, then a group of storage batteries needing to be discharged are separated from a bus, and a dummy load discharging device is started to discharge. Therefore, the manual field discharging operation of the battery is time-consuming and laborious. With the application of automatic control technology, in order to realize the automatic control of the bus-bar switch, an electric control bus-bar switch is generally arranged in parallel on the basis of the original mechanical bus-bar switch of two sections of buses. However, in the dual-electric dual-charging direct current power supply system, the driving of the electric control bus-bar switch is still a difficult problem on the premise of ensuring the safety of the direct current system during discharging.
Disclosure of Invention
Based on the above, it is necessary to provide an electric control bus-tie switch driving device and a control method thereof, aiming at the problem that automatic control of the electric control bus-tie switch is difficult to realize in a double-electric double-charging source system.
An electrically controlled bus switch driving device, comprising:
the power supply device is used for providing power for the electric control bus-tie switch; and
The control device is provided with a first interface and a second interface, the first interface is connected in series with the power supply device, the first interface after being connected in series with the power supply device is used for being connected in series with a coil of the electric control bus-tie switch to form a closed loop, the second interface is used for being connected in series with an auxiliary contact of the electric control bus-tie switch to form a closed loop, the first interface is used for controlling switching of the electric control bus-tie switch, and the second interface is used for detecting the opening and closing states of the electric control bus-tie switch.
In the electric control bus-tie switch driving device, a driving power supply is provided for the electric control bus-tie switch through the power supply device. The control device is provided with the first interface and the second interface. The control device can realize automatic connection or disconnection of the two sections of buses through the first interface, namely, the control device controls automatic switching of the electric control bus-tie switch, so that power supply safety is ensured. Before the switching of the electric control bus-tie switch is controlled, the control device can detect the opening and closing state of the electric control bus-tie switch through the second interface, so that the safety of automatic control is improved. The electric control bus-tie switch driving device can realize automatic control of the on-off action of the electric control bus-tie switch, provides effective and safe electric control bus-tie switch control for automatic discharging, ensures that automatic charging and discharging of the storage battery pack are smoothly carried out, and further ensures the power supply safety of a backup power supply system.
In one embodiment, the power supply device includes:
and the switching power supply is connected with the first interface in series and is used for being electrically connected with the bus controlled by the electric control bus switch.
In one embodiment, the control device includes:
A control circuit; and
And the output circuit is electrically connected with the control circuit, and an output port of the output circuit is the first interface.
In one embodiment, the output circuit includes:
And the normally open relay is electrically connected with the control circuit, and an output port of the normally open relay is the first interface.
In one embodiment, the control device further comprises:
The sampling circuit is respectively and electrically connected with the control circuit and the output circuit; and
And the input circuit is electrically connected with the sampling circuit, and an input interface of the input circuit is the second interface.
In one embodiment, the input circuit includes:
the switching value input branch circuit is electrically connected with the sampling circuit, and an input interface of the switching value input branch circuit is the second interface.
In one embodiment, the control device further comprises:
and the communication circuit is electrically connected with the control circuit.
In one embodiment, the communication circuit is provided with an RS232 interface, an RS485 interface and a CAN bus interface.
In one embodiment, the control device further comprises:
And the power supply circuit is respectively and electrically connected with the control circuit, the output circuit, the sampling circuit, the input circuit and the communication circuit and is used for providing a working power supply.
A control method of an electric control bus-tie switch driving device comprises the following steps:
the control device receives a control instruction;
the control device detects the opening and closing states of the electric control bus-tie switch through a second interface;
According to the control instruction, the control device judges whether the opening and closing state of the electric control bus switch is normal or not;
The control device drives switching of the electric control bus-tie switch through a first interface according to the opening and closing state of the electric control bus-tie switch.
In one embodiment, before the step of detecting the open-close state of the electrically controlled bus switch by the control device through the second interface, the method includes:
The control device detects the output state of the power supply device through the first interface.
In one embodiment, the step of detecting, by the control device, the open-close state of the electrically controlled bus switch through the second interface includes:
The switching value input branch circuit obtains the opening and closing state of the auxiliary contact of the electric control bus-tie switch;
The sampling circuit samples the switching value input branch circuit;
and the control circuit receives the data of the sampling circuit and acquires the opening and closing states of the electric control bus-tie switch.
In one embodiment, the step of driving, by the control device, switching of the electrically controlled bus-tie switch through the first interface according to the on-off state of the electrically controlled bus-tie switch includes:
when the state of the electric control bus-tie switch is normal, the control device feeds back normal information and drives switching of the electric control bus-tie switch through the first interface;
when the state of the electric control bus-tie switch is abnormal, the control device feeds back abnormal information.
In one embodiment, after the step of driving, by the control device, switching of the electrically controlled bus-tie switch through the first interface according to the on-off state of the electrically controlled bus-tie switch, the method includes:
the control device judges whether the control instruction is successfully executed by the electric control bus-tie switch;
And driving the electric control bus switch to act by the control device according to the execution condition of the control instruction.
In one embodiment, the step of driving the electronic control bus switch to act by the control device according to the execution condition of the control instruction includes:
When the control instruction is successfully executed, the control device waits for the next control instruction;
when the control instruction fails to be executed, the control device drives the electric control bus-tie switch to repeatedly execute the control instruction.
According to the bus-bar switch driving device and the control method, the switching power supply is electrically connected with the bus controlled by the electric control bus-bar switch, so that electricity can be directly taken from the bus, and power supply by an additional power supply is not needed. The output circuit can convert the opening and closing state of the electric control bus-tie switch into a format which is convenient for the sampling circuit to collect. The output circuit comprises the switching value input branch circuit, namely the switching value input branch circuit is used for converting the switching state into corresponding high-low level signals, so that the sampling circuit is convenient to sample. The output circuit comprises the normally open relay, and the normally open relay can be used as an automatic switch to control the output of the output circuit, so that the functions of automatic adjustment, safety protection, a switching circuit and the like are realized. The communication circuit is electrically connected with the control circuit, and the control circuit is communicated with the control terminal after detecting the opening and closing state of the electric control bus-tie switch, so that the monitoring of the opening and closing state of the electric control bus-tie switch is realized. The communication circuit is provided with an RS232 interface, an RS485 interface and a CAN bus interface. Through the communication circuit, RS232 or RS485 serial communication conversion CAN be realized with the outside, and meanwhile, the communication circuit also has communication modes such as CAN communication, wireless communication and the like. According to the control method of the electric control bus-tie switch driving device, before the electric control bus-tie switch is controlled to switch, the switching state of the electric control bus-tie switch is detected through the second interface, so that the monitoring capability on abnormal conditions can be improved, the switching safety of the bus-tie switch is ensured, the power supply safety of a standby battery system is ensured, and the automation and the intellectualization of a direct current power supply system are improved.
Drawings
Fig. 1 is a schematic diagram of an electric control bus-tie switch driving device and an electric connection structure in use according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another electrically controlled bus-tie switch driving device and an electrical connection structure in use according to an embodiment of the present application;
fig. 3 is a schematic diagram of an electrical connection structure of an electrically controlled bus-tie switch driving device according to an embodiment of the present application;
Fig. 4 is a schematic diagram of an electrical connection structure of another driving device for an electrically controlled bus-tie switch according to an embodiment of the present application;
FIG. 5 is a flow chart of a control method of an electrically controlled bus-tie switch driving device according to an embodiment of the present application;
FIG. 6 is a flowchart of another control method of the driving device of the electrically controlled bus-tie switch according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of an electrically controlled bus-tie switch driving system according to an embodiment of the present application.
Description of the reference numerals
100. Driving device of electric control bus-tie switch
10. Power supply device
110. Switching power supply
20. Control device
210. First interface
220. Second interface
230. Control circuit
240. Output circuit
241. Normally open relay
250. Sampling circuit
260. Input circuit
261. Switching value input branch
270. Communication circuit
280. Power supply circuit
30. Electric control bus-bar switch
310. Coil
320. Auxiliary contact
330. Main contact
40. Control terminal
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the application, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present application provides an electrically controlled bus switch driving device 100. The electric control bus switch driving device 100 comprises a power supply device 10 and a control device 20. The power supply device 10 is used for providing power for the electric control bus-tie switch 30. The control device 20 is provided with a first interface 210 and a second interface 220, the first interface 210 is connected in series with the power supply device 10, the first interface 210 and the power supply device 10 after being connected in series are connected in series with the coil 310 of the electric control bus switch 30 to form a closed loop, the second interface 220 is connected in series with the auxiliary contact 320 of the electric control bus switch 30 to form a closed loop, the first interface 210 is used for controlling switching of the electric control bus switch 30, and the second interface 220 is used for detecting the opening and closing state of the electric control bus switch 30.
The electric control bus switch driving device 100 is applied to a double-electric double-charging direct current system. The double-electricity double-charging direct current system comprises a first storage battery pack and a second storage battery pack. The first storage battery pack is electrically connected with the section I direct current bus. And the second storage battery pack is electrically connected with the II-section direct current bus. The I section direct current bus and the II section direct current bus are connected through a manual mechanical bus switch, and the electric control bus switch 30 is connected with the manual mechanical bus switch in parallel. It is understood that the electrically controlled bus switch 30 is a dc contactor. The dc contactor has a main contact 330, an auxiliary contact 320 and a coil 310. The direct current contactor has the advantages of long electrical life, good safety performance and the like. Referring to fig. 2, in one embodiment, the section i dc bus and the section ii dc bus may be directly connected through the electrically controlled bus switch 30. The electrically controlled bus bar switch driving device 100 detects the state of the electrically controlled bus bar switch 30 and controls the switching of the electrically controlled bus bar switch 30.
The power supply device 10 may include a DCDC driving power module, which provides a dc operating power for the coil 310 of the electronic control bus switch 30. The DCDC driving power module can take power from the dc bus, so that no additional power supply is needed, and the structure of the electric control bus switch driving device 100 is simplified. It can be appreciated that the DCDC driving power module has the advantages of low power consumption, high efficiency, small volume, light weight and wide voltage stabilizing range. In one embodiment, the input of the DCDC driving power module may be DC110V and the output may be DC24V.
The control device 20 is used for driving and controlling the electric control bus-tie switch 30, and is used for executing a command for controlling the opening and closing actions of the electric control bus-tie switch 30, so as to control the opening and closing of the electric control bus-tie switch 30. The control device 20 may control whether to supply power to the coil 310 of the electrically controlled bus-tie switch 30 through the power supply device 10 by controlling the on-off of the first interface 210, so as to control the switching of the electrically controlled bus-tie switch 30. Since the auxiliary contact 320 and the main contact 330 of the electrically controlled bus bar switch 30 are linked, the control device 20 can determine the open/close state of the auxiliary contact 320 of the electrically controlled bus bar switch 30 through the second interface 220, thereby further determining the open/close state of the main contact 330 of the electrically controlled bus bar switch 30. It can be appreciated that the control device 20 may monitor the open/close state of the electrically controlled bus-tie switch 30 in real time during the whole process of controlling the switching of the electrically controlled bus-tie switch 30, and feed back the open/close state of the electrically controlled bus-tie switch 30 to the control terminal 40. The control terminal 40 may send a control command according to the open-close state of the electronic control bus, so as to improve the safety of the control process.
The electric control bus-bar switch driving device 100 provides a driving power for the electric control bus-bar switch 30 through the power supply device 10, so that the structure of the electric control bus-bar switch driving device 100 is simplified. The control device 20 is provided with the first interface 210 and the second interface 220. The control device 20 can realize automatic connection or disconnection of two bus bars through the first interface 210, namely, control the automatic switching of the electric control bus-bar switch 30, so as to ensure the power supply safety. Before the electronic control bus-tie switch 30 is controlled to switch, the control device 20 may detect the open-close state of the electronic control bus-tie switch 30 through the second interface 220, so as to improve the safety of automatic control. The electric control bus-tie switch driving device 100 can realize automatic control of the on-off action of the electric control bus-tie switch 30, provide effective and safe control of the electric control bus-tie switch 30 for automatic discharging, ensure that automatic charging and discharging of the storage battery pack are smoothly carried out, and further ensure the power supply safety of a backup power supply system.
Referring to fig. 2-3, in one embodiment, the power supply device 10 includes a switching power supply 110. The switching power supply 110 is connected in series with the first interface 210, and is configured to be electrically connected to a bus controlled by the electronic control bus switch 30. The core component of the switching power supply 110 is a DCDC converter. The switching power supply 110 may be a DCDC driving power supply module, which takes power from a dc bus and converts it into a power supply required by the electronic control bus switch 30, and has the advantages of small volume and high efficiency. By employing the switching power supply 110, the structure of the electrically controlled bus bar switching driving device 100 can be simplified.
In one embodiment, the control device 20 includes a control circuit 230 and an output circuit 240. The output circuit 240 is electrically connected to the control circuit 230. The output port of the output circuit 240 is the first interface 210. The control circuit 230 includes a CPU unit for executing control instructions of the control terminal 40. It will be appreciated that the control circuit 230 may be used for signal sampling control, drive switch control, signal relay processing, communication control, and the like.
In one embodiment, the output circuit 240 includes a normally open relay 241. The normally open relay 241 is electrically connected to the control circuit 230, and an output port of the normally open relay 241 is the first interface 210. The normally open relay 241 may act as a drive switch. The normally open relay 241 is controlled by the control circuit 230. After receiving the control instruction of the control terminal 40, the control circuit 230 controls whether to supply power to the coil 310 of the electric control bus-tie switch 30 by controlling the open/close of the normally open relay 241, thereby controlling the switching of the electric control bus-tie switch 30.
In one embodiment, the control device 20 further includes a sampling circuit 250 and an input circuit 260. The sampling circuit 250 is electrically connected to the control circuit 230 and the output circuit 240, respectively. The input circuit 260 is electrically connected to the sampling circuit 250, and an input interface of the input circuit 260 is the second interface 220. The sampling circuit 250 includes an AD sampling unit for performing a sampling task of the control circuit 230 and converting an analog signal into a digital signal. The sampling circuit 250 is electrically connected to the output circuit 240, and the output circuit 240 is connected in series with the power supply device 10. It will be appreciated that, by the above connection, the output voltage signal of the power supply device 10 may be sampled by the sampling circuit 250. Therefore, before the electric control bus-tie switch 30 is controlled to switch, whether the voltage signal of the power supply device 10 is normal is judged, so that the safety of the driving device 100 of the electric control bus-tie switch 30 is improved. The sampling circuit 250 is electrically connected with the input circuit 260, and an input interface of the input circuit 260 is connected with the auxiliary contact 320 of the electronic control bus switch 30 in series to form a closed loop. It can be appreciated that the sampling circuit 250 may collect the high and low levels corresponding to the open and close states of the auxiliary contacts 320 of the electrically controlled bus switch 30. By determining the high and low levels of the auxiliary contacts 320 of the electrically controlled bus switch 30, the open/close state of the auxiliary contacts 320 can be determined, thereby determining the open/close state of the main contacts 330. Judging whether the opening and closing state of the electric control bus-tie switch 30 is normal before controlling the switching of the electric control bus-tie switch 30 can further improve the safety of the electric control bus-tie switch driving device 100.
In one embodiment, the input circuit 260 includes a switching value input branch 261. The switching value input branch 261 is electrically connected to the sampling circuit 250, and an input interface of the switching value input branch 261 is the second interface 220. The switching value input branch 261 can convert the opening and closing state of the auxiliary contact of the electronic control bus switch 30 into corresponding high-low level switching value signals, so that the sampling circuit 250 can perform AD sampling conveniently.
In one embodiment, the control device 20 further includes a communication circuit 270. The communication circuit 270 is electrically connected to the control circuit 230. In one embodiment, the communication circuit 270 is provided with an RS232 interface, an RS485 interface, and a CAN bus interface. It CAN be appreciated that the communication circuit 270 may implement RS232 or RS485 serial communication conversion, and may also have communication modes such as CAN communication and wireless communication. By arranging various communication interfaces, the application of the electric control bus-tie switch device 100 in the environment can be satisfied, so that the application range of the electric control bus-tie switch device 100 is improved.
In one embodiment, the control device 20 further includes a power circuit 280. The power circuit 280 is electrically connected to the control circuit 230, the output circuit 240, the sampling circuit 250, the input circuit 260, and the communication circuit 270, respectively, for providing an operating power. The input of the power circuit 280 may be DC24V to DC220V, and the output may be dc±12V and dc±5V. The power circuit 280 provides different working power sources for each part of the control device 20 according to the needs. The power supply circuit 280 can meet the power requirements of different hardware, so as to simplify the structure of the electrically controlled bus switch driving device 100.
Referring to fig. 5, the present application provides a control method for an electrically controlled bus-tie switch driving device. The control method of the electric control bus-tie switch driving device comprises the following steps: s10, the control device 20 receives the control instruction. S20, the control device 20 detects the opening and closing states of the electric control bus switch 30 through the second interface 220. S30, according to the control instruction, the control device 20 judges whether the opening and closing state of the electric control bus-tie switch 30 is normal. S40, the control device 20 drives the switching of the electric control bus-tie switch 30 through the first interface 210 according to the opening and closing state of the electric control bus-tie switch 30.
In step S10, the control device 20 receives a control instruction. The control instructions may come from the control terminal 40. The control device 20 includes a communication circuit 270, and the control device 20 may communicate with the control terminal 40 through the communication circuit 270. It will be appreciated that the manner of communication is not limited. The control device 20 may first determine whether the control instruction content is correct before executing the control instruction. When the control command has a disorder code, the control device 20 may feed back to the control terminal 40 and request retransmission of the control command.
In the step S20, the control device 20 detects the open/close state of the auxiliary contact 320 of the electronically controlled bus switch 30 through the second interface 220. Since the auxiliary contact 320 and the main contact 330 are linked, the open/close state of the main contact 330 of the electrically controlled bus switch 30 can be further determined according to the open/close state of the auxiliary contact 320. It can be understood that the open-close state of the main contact 330 of the electrically controlled bus-tie switch 30 is the open-close state of the electrically controlled bus-tie switch 30. After the detection of the opening and closing state of the electric control bus-tie switch 30 is completed, the opening and closing state information can be fed back to the remote terminal to make further control decisions.
In the step S30, according to the control instruction, the control device 20 determines whether the open/close state of the electrically controlled bus-tie switch 30 is normal, that is, starts the initial state detection process of the electrically controlled bus-tie switch 30. When the control instruction is to close the electric control bus-tie switch 30, the electric control bus-tie switch 30 is in an open state, which is the normal condition. When the control instruction is to open the electric control bus-tie switch 30, the electric control bus-tie switch 30 is in the closed state, which is the normal condition.
In the step S40, when the open/close state of the electrically controlled bus-tie switch 30 is normal, detection data may be fed back to the control terminal 40, and the switching of the electrically controlled bus-tie switch 30 may be driven through the first interface 210 according to the control command. When the open/close state of the electrically controlled bus switch 30 is abnormal, the detection data may be fed back to the control terminal 40, and further decision may be made by the remote terminal.
According to the control method of the electric control bus-tie switch driving device, before the electric control bus-tie switch 30 is controlled to switch, the second interface 220 is used for detecting the on-off state of the electric control bus-tie switch 30, so that the monitoring capability on abnormal conditions can be improved, the switching safety of the bus-tie switch is ensured, the power supply safety of a standby battery system is ensured, and the automation and the intellectualization of a direct current power supply system are improved.
In one embodiment, before the step of detecting the open/close state of the electrically controlled bus switch 30 by the control device 20 through the second interface 220, the method includes: s02, the control device 20 detects the output state of the power supply device 10 through the first interface 210. It will be appreciated that when the power supply apparatus 10 includes a DCDC driving power module, the control apparatus 20 detects an output state of the DCDC driving power module through the first interface 210. In one embodiment, the output state of the power supply device 10 is normal when the output voltage of the DCDC driving power module is between 18V and 48V. The control command may be executed when the output state of the power supply device 10 and the state of the electronically controlled bus switch 30 are normal. Otherwise, the detection data is fed back to the control terminal 40 and further decisions are made by the control terminal 40. Through the step S02, the safety of the use process of the electrically controlled bus-tie switch driving device 100 can be further improved.
In one embodiment, the step of detecting the open/close state of the electrically controlled bus switch 30 by the control device 20 through the second interface 220 includes: s210, the switching value input branch 261 obtains the opening and closing states of the auxiliary contacts 320 of the electric control bus switch 30. S220, the sampling circuit 250 samples the switching value input branch 261. S230, the control circuit 230 receives the data of the sampling circuit 250, and obtains the opening and closing state of the electrically controlled bus-tie switch 30.
In the step S210, the control device 20 obtains the open/close state of the auxiliary contact 320 of the electrically controlled bus-tie switch 30 through the switching value input branch 261. The auxiliary contact 320 and the main contact 330 of the electrically controlled bus switch 30 are interlocked. Therefore, the open-close state of the main contact 330 of the electrically controlled bus-tie switch can be obtained according to the open-close state of the auxiliary contact 320 of the electrically controlled bus-tie switch 30, i.e. the open-close state of the electrically controlled bus-tie switch 30 is obtained. In the step S220, the switching state of the auxiliary contact 320 of the electrically controlled bus switch 30 may be converted into a high-low level by the switching value input branch 261, so that the auxiliary contact may be conveniently collected by the sampling circuit 250. In the step S230, the control circuit 230 may obtain the open/close state of the electrically controlled bus switch 30 according to the data collected by the sampling circuit 250.
In one embodiment, the step of driving the switching of the electrically controlled bus-tie switch 30 by the control device 20 through the first interface 210 according to the open-close state of the electrically controlled bus-tie switch 30 includes: s410, when the state of the electrically controlled bus-tie switch 30 is normal, the control device 20 feeds back normal information and drives the switching of the electrically controlled bus-tie switch 30 through the first interface 210; s420, when the state of the electric control bus-tie switch 30 is abnormal, the control device 20 feeds back abnormal information.
In the step S410, when the control device 20 obtains a control instruction for closing the electronically controlled bus switch 30, the control device 20 drives the normally open relay 241 through the first interface 210, so that the normally open relay 241 is closed. At this time, the output voltage of the power supply device 10 is connected to the coil 310 of the electrically controlled bus switch 30. After the coil 310 of the electrically controlled bus-tie switch 30 is powered, the main contact 330 of the electrically controlled bus-tie switch 30 is instantly attracted by a normally open state. When the control device 20 obtains a control instruction for opening the electronic control bus-tie switch 30, the control device 20 drives the normally open relay 241 through the first interface 210, so that the normally open relay 241 is opened. The output voltage of the power supply device 10 is separated from the coil 310 of the electrically controlled bus switch 30. After the coil 310 of the electrically controlled bus-tie switch 30 is powered off, the main contact 330 of the electrically controlled bus-tie switch 30 is instantaneously opened from a closed state. The above process can realize the switching of the electric control bus-tie switch 30.
In the step S420, when the state of the electronically controlled bus switch 30 is abnormal, the method may include: when the control device 20 obtains a control instruction for closing the electric control bus-tie switch 30, the electric control bus-tie switch 30 is in a closed state. When the control device 20 obtains a control instruction for turning off the electrically controlled bus-tie switch 30, the electrically controlled switch is in an off state. The abnormal state of the electrically controlled bus switch 30 may also include other situations where the control command cannot be normally executed. The control terminal 40 may make further decisions based on the feedback of anomaly information from the control device 20.
In one embodiment, the control circuit 230 first completes the initial state detection of the electrically controlled bus switch 30 after receiving the control command of the control terminal 40 for the first time. In the subsequent process, the control circuit 230 detects the state of the electrically controlled bus switch 30 in real time. When the state of the electrically controlled bus switch 30 is found to be abnormal, the control circuit 230 sends an abnormality alarm signal to the control terminal 40 via the communication circuit 270.
In one embodiment, after the step of driving the switching of the electrically controlled bus bar switch 30 by the control device 20 through the first interface 210 according to the open-close state of the electrically controlled bus bar switch 30, the method includes: s510, the control device 20 judges whether the electric control bus-tie switch 30 successfully executes the control instruction. S520, according to the execution condition of the control instruction, the control device 20 drives the electric control bus switch 30 to act.
In one embodiment, the step of driving the electrically controlled bus switch 30 by the control device 20 according to the execution condition of the control command includes: s521, when the control instruction is executed successfully, the control device 20 waits for the next control instruction. And S522, when the control instruction fails to be executed, the control device 20 drives the electric control bus switch 30 to repeatedly execute the control instruction.
When the control command is a closing command, the control device 20 closes the electronic control bus switch 30 through the first interface 210. The control device 20 detects whether the closing action of the electrically controlled bus switch 30 is successful or not through the second interface 220. When the electronically controlled bus switch 30 is successfully closed, the control device 20 waits for the next open command. When the electronic control bus-tie switch 30 fails to be closed, the control device 20 repeatedly executes the closing instruction until the electronic control bus-tie switch 30 is closed.
When the control command is an off command, the control device 20 turns off the electrically controlled bus switch 30 through the first interface 210. The control device 20 detects whether the opening action of the electrically controlled bus switch 30 is successful through the second interface 220. When the electrically controlled bus switch 30 is successfully opened, the control device 20 waits for a closing command. When the electronic control bus-tie switch 30 fails to be opened, the control device 20 repeatedly executes the opening command until the electronic control bus-tie switch 30 is closed.
Referring to fig. 7, the present application provides an electrically controlled bus switch driving system 200. The electrically controlled bus-bar switch driving system 200 includes an electrically controlled bus-bar switch 30 and an electrically controlled bus-bar switch driving device 100. The electronically controlled bus switch 30 includes a coil 310 and auxiliary contacts 320. The electric control bus switch driving device 100 comprises a power supply device 10 and a control device 20. The power supply device 10 is used for providing power for the electric control bus-tie switch 30. The control device 20 is provided with a first interface 210 and a second interface 220, the first interface 210 is connected in series with the power supply device 10, the first interface 210 and the power supply device 10 after being connected in series are connected in series with the coil 310 of the electric control bus switch 30 to form a closed loop, the second interface 220 is connected in series with the auxiliary contact 320 of the electric control bus switch 30 to form a closed loop, the first interface 210 is used for controlling switching of the electric control bus switch 30, and the second interface 220 is used for detecting the opening and closing state of the electric control bus switch 30.
In one embodiment, the electrically controlled bus switch driving system 200 further includes a control terminal 40. The control terminal 40 is communicatively connected to the control device 20, and is configured to send a control command. In one embodiment, the electrically controlled bus switch 30 further comprises a main contact 330, the main contact 330 being adapted to be connected in parallel with a manual mechanical bus switch provided on the bus.
In one embodiment, the power supply 10 includes a switching power supply 110. The switching power supply 110 is connected in series with the first interface 210, and is configured to be electrically connected to a bus controlled by the electronic control bus switch. In one embodiment, the control device 20 includes a control circuit 230 and an output circuit 240. The output circuit 240 is electrically connected to the control circuit 230. The output interface of the output circuit 240 is the first interface 210. In one embodiment, the control device 20 further includes a sampling circuit 250 and an input circuit 260. The sampling circuit 250 is electrically connected to the control circuit 230 and the output circuit 240, respectively. The input circuit 260 is electrically connected to the sampling circuit 250, and an input interface of the input circuit 260 is the second interface 220.
Specifically, referring to fig. 3 to fig. 4, the driving device 100 of the electrically controlled bus-tie switch, the electrically controlled bus-tie switch 30, the control terminal 40, and the elements and circuits thereof respectively may be any one provided in the corresponding embodiments of fig. 3 to fig. 4, and are not described herein.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (14)
1. An electrically controlled bus bar switch drive (100), comprising:
The power supply device (10) is used for providing power for the electric control bus-tie switch (30); and
The control device (20) is provided with a first interface (210) and a second interface (220), the first interface (210) is connected in series with the power supply device (10), the first interface (210) and the power supply device (10) after being connected in series are connected in series with a coil (310) of the electric control busbar switch (30) to form a closed loop, the second interface (220) is connected in series with an auxiliary contact (320) of the electric control busbar switch (30) to form a closed loop, the first interface (210) is used for controlling switching of the electric control busbar switch (30), and the second interface (220) is used for detecting the opening and closing states of the electric control busbar switch (30);
the power supply device (10) comprises a DCDC driving power supply module, and the control device (20) is used for:
receiving a control instruction;
detecting an output state of the DCDC driving power module through the first interface (210);
detecting the opening and closing states of the electric control bus-tie switch (30) through the second interface (220);
Judging whether the opening and closing states of the electric control bus-tie switch (30) are normal or not according to the control instruction; when the control instruction is to close the electric control bus-tie switch (30), the electric control bus-tie switch (30) is in a normal state in an open state, and when the control instruction is to open the electric control bus-tie switch (30), the electric control bus-tie switch (30) is in a normal state in a closed state;
When the output state of the DCDC driving power supply module and the state of the electric control bus-tie switch (30) are normal, the switching of the electric control bus-tie switch (30) is driven through the first interface (210) according to the control instruction.
2. The electrically controlled bus bar switch driving device (100) according to claim 1, wherein the power supply device (10) comprises:
And the switching power supply (110) is connected in series with the first interface (210) and is used for being electrically connected with a bus controlled by the electric control bus switch (30).
3. The electrically controlled busbar switch drive (100) of claim 1, wherein the control device (20) comprises:
A control circuit (230); and
And the output circuit (240) is electrically connected with the control circuit (230), and an output interface of the output circuit (240) is the first interface (210).
4. An electrically controlled bus switch driving device (100) according to claim 3, wherein the output circuit (240) comprises:
And the normally open relay (241) is electrically connected with the control circuit (230), and an output interface of the normally open relay (241) is connected with the first interface (210).
5. An electrically controlled busbar switch drive (100) according to claim 3, wherein the control device (20) further comprises:
A sampling circuit (250) electrically connected to the control circuit (230) and the output circuit (240), respectively; and
And the input circuit (260) is electrically connected with the sampling circuit (250), and an input interface of the input circuit (260) is the second interface (220).
6. The electrically controlled bus switch drive (100) of claim 5, wherein the input circuit (260) comprises:
the switching value input branch circuit (261) is electrically connected with the sampling circuit (250), and an input interface of the switching value input branch circuit (261) is the second interface (220).
7. An electrically controlled busbar switch drive (100) according to claim 3, wherein the control device (20) further comprises:
A sampling circuit (250) electrically connected to the control circuit (230) and the output circuit (240), respectively;
an input circuit (260) electrically connected with the sampling circuit (250), wherein an input interface of the input circuit (260) is the second interface (220);
and a communication circuit (270) electrically connected to the control circuit (230).
8. The electrically controlled bus switch drive (100) of claim 7, wherein the communication circuit (270) is provided with an RS232 interface, an RS485 interface, and a CAN bus interface.
9. The electrically controlled bus bar switch actuation device (100) of claim 7, wherein the control device (20) further comprises:
And the power supply circuit (280) is electrically connected with the control circuit (230), the output circuit (240), the sampling circuit (250), the input circuit (260) and the communication circuit (270) respectively and is used for providing working power supply.
10. A control method of an electrically controlled bus bar switch driving device, for an electrically controlled bus bar switch driving device (100) according to any one of claims 1 to 9, comprising:
The control device (20) receives a control instruction;
the control device (20) detects the output state of the DCDC driving power supply module through the first interface (210);
The control device (20) detects the opening and closing states of the electric control bus-tie switch (30) through a second interface (220);
According to the control instruction, the control device (20) judges whether the opening and closing state of the electric control bus-tie switch (30) is normal or not; when the control instruction is to close the electric control bus-tie switch (30), the electric control bus-tie switch (30) is in a normal state in an open state, and when the control instruction is to open the electric control bus-tie switch (30), the electric control bus-tie switch (30) is in a normal state in a closed state;
when the output state of the DCDC driving power supply module and the state of the electric control bus-tie switch (30) are normal, the control device (20) drives switching of the electric control bus-tie switch (30) through a first interface (210) according to the control instruction.
11. The method of controlling an electrically controlled bus switch driving device according to claim 10, wherein the step of detecting the open/close state of the electrically controlled bus switch (30) by the control device (20) through the second interface (220) includes:
The switching value input branch (261) acquires the opening and closing states of auxiliary contacts (320) of the electric control bus-tie switch (30);
-a sampling circuit (250) samples the switching value input branch (261);
the control circuit (230) receives the data of the sampling circuit (250) and acquires the opening and closing states of the electric control bus-tie switch (30).
12. The method according to claim 10, wherein the step of driving the switching of the electrically controlled bus switch (30) by the control device (20) through the first interface (210) according to the open/close state of the electrically controlled bus switch (30) includes:
When the state of the electric control bus-tie switch (30) is normal, the control device (20) feeds back normal information and drives switching of the electric control bus-tie switch (30) through the first interface (210);
when the state of the electric control bus-tie switch (30) is abnormal, the control device (20) feeds back abnormal information.
13. The method according to claim 10, characterized in that after the step of driving the switching of the electrically controlled bus switch (30) by the control device (20) through the first interface (210) according to the open/close state of the electrically controlled bus switch (30), it comprises:
The control device (20) judges whether the electric control bus-tie switch (30) successfully executes the control instruction;
According to the execution condition of the control instruction, the control device (20) drives the electric control bus switch (30) to act.
14. The method according to claim 13, wherein the step of driving the electrically controlled bus switch (30) by the control device (20) according to the execution of the control command includes:
When the control instruction is successfully executed, the control device (20) waits for the next control instruction;
When the control instruction fails to be executed, the control device (20) drives the electric control bus switch (30) to repeatedly execute the control instruction.
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| CN201910156282.7A CN109672265B (en) | 2019-03-01 | 2019-03-01 | Electric control bus-tie switch driving device and control method thereof |
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| CN201910156282.7A CN109672265B (en) | 2019-03-01 | 2019-03-01 | Electric control bus-tie switch driving device and control method thereof |
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| CN110212603A (en) * | 2019-05-30 | 2019-09-06 | 深圳市普禄科智能检测设备有限公司 | Charger dropping equipment and charger are depressured control method |
| CN110138086A (en) * | 2019-05-30 | 2019-08-16 | 深圳市普禄科智能检测设备有限公司 | Telemechanical bus connection switch device, control system and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548871A (en) * | 2015-12-09 | 2016-05-04 | 许继集团有限公司 | MMC sub-module bypass switch state detection device and MMC sub-module bypass switch |
| CN107819360A (en) * | 2017-11-22 | 2018-03-20 | 深圳供电局有限公司 | Bus tie breaker control circuit, device and system |
| CN209402236U (en) * | 2019-03-01 | 2019-09-17 | 深圳供电局有限公司 | Electric control bus coupling switch driving device and system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3116393C1 (en) * | 1981-04-24 | 1982-11-04 | Siemens AG, 1000 Berlin und 8000 München | Electrical circuit arrangement for simulating a busbar system with a fault recorder |
| CN100477439C (en) * | 2005-01-08 | 2009-04-08 | 艾默生网络能源系统有限公司 | Switching power supply with overvoltage protection and overvoltage protection method thereof |
| CN201966684U (en) * | 2010-12-15 | 2011-09-07 | 河南省电力公司许昌供电公司 | A pressure lock circuit power switching device |
| CN202333963U (en) * | 2011-11-22 | 2012-07-11 | 重庆市电力公司检修分公司 | Direct-current dual power intelligent seamless switching device |
| CN205212528U (en) * | 2015-11-03 | 2016-05-04 | 山西潞安集团余吾煤业有限责任公司 | A two female power supply system that ally oneself with for electric substation in pit |
| CN105406591A (en) * | 2015-11-20 | 2016-03-16 | 宁波技冠智能科技发展股份有限公司 | Remote discharge controller device |
| CN207319960U (en) * | 2017-09-25 | 2018-05-04 | 河南森源电气股份有限公司 | A kind of bus connection switch interlock control circuit and mother system |
| CN207426802U (en) * | 2017-11-03 | 2018-05-29 | 重庆吉能电气(集团）有限公司 | A kind of one mother power distribution control system of three inlet wire |
| CN108512246B (en) * | 2018-03-08 | 2024-07-26 | 上海阜有海洋科技有限公司 | Control method based on oil injection quantity-frequency-active power collaborative MIMO control system |
-
2019
- 2019-03-01 CN CN201910156282.7A patent/CN109672265B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548871A (en) * | 2015-12-09 | 2016-05-04 | 许继集团有限公司 | MMC sub-module bypass switch state detection device and MMC sub-module bypass switch |
| CN107819360A (en) * | 2017-11-22 | 2018-03-20 | 深圳供电局有限公司 | Bus tie breaker control circuit, device and system |
| CN209402236U (en) * | 2019-03-01 | 2019-09-17 | 深圳供电局有限公司 | Electric control bus coupling switch driving device and system |
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