CN116455047A - Control method and device for solid-state change-over switch and readable storage medium - Google Patents
Control method and device for solid-state change-over switch and readable storage medium Download PDFInfo
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- CN116455047A CN116455047A CN202310700591.2A CN202310700591A CN116455047A CN 116455047 A CN116455047 A CN 116455047A CN 202310700591 A CN202310700591 A CN 202310700591A CN 116455047 A CN116455047 A CN 116455047A
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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
- H02J9/062—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 for AC powered loads
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Abstract
The invention relates to the technical field of switch control, and provides a control method and device of a solid-state change-over switch and a readable storage medium. The solid-state change-over switch is used for controlling a power supply system, the power supply system is used for supplying power to a load, the power supply system comprises a solid-state change-over switch, an energy storage converter, a battery and a power grid, the energy storage converter is connected with the battery, the solid-state change-over switch is connected with the power grid, the power grid is connected with the energy storage converter, the load is respectively connected with the solid-state change-over switch and the energy storage converter, and the control method of the solid-state change-over switch comprises the following steps: under the condition that a load is powered through the energy storage converter and the battery and the power supply state of the power grid is power-available, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid; and stopping the operation of the energy storage converter under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supplying power to the load through the power grid.
Description
Technical Field
The present invention relates to the field of switch control technologies, and in particular, to a method and apparatus for controlling a solid-state switch, and a readable storage medium.
Background
The power supply system is a system capable of supplying power to the load, the power supply system comprises a plurality of power supplies such as a power grid and a battery, the battery supplies power to the load under the condition of power failure or faults of the power grid, a mechanical switch can be arranged in the power supply system at the present stage, and the power supply is switched through the mechanical switch, but the mechanical switch at the present stage has the problems that the switching speed is low, the rapidity and the synchronism cannot be met, and the like.
Disclosure of Invention
The invention aims to at least solve the technical problems that the switching speed of a switch is low and the rapidity, the synchronism and the like in the prior art or related technologies cannot be met.
To this end, a first aspect of the present invention is to propose a control method of a solid-state changeover switch.
A second aspect of the present invention is to provide a control device for a solid-state switch.
A third aspect of the present invention is to propose another control device for a solid state transfer switch.
A fourth aspect of the invention is directed to a readable storage medium.
In view of this, according to a first aspect of the present invention, there is provided a control method of a solid-state switch for controlling a power supply system for supplying power to a load, the power supply system including a solid-state switch, an energy storage converter, a battery, and a power grid, the energy storage converter being connected to the battery, the solid-state switch being connected to the power grid, the power grid being connected to the energy storage converter, the load being connected to the solid-state switch and the energy storage converter, respectively, the control method of the solid-state switch comprising: under the condition that a load is powered through the energy storage converter and the battery and the power supply state of the power grid is power-available, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid; and stopping the operation of the energy storage converter under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supplying power to the load through the power grid.
According to the control method of the solid-state change-over switch in the technical scheme, when the load is powered through the energy storage converter and the battery and the power supply state of the power grid is the power-available state, the solid-state change-over switch is closed, the first voltage and the first phase of the power grid are detected, the second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid, and when the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter, the load is powered through the power grid, the power supply switching time of the power supply system is greatly shortened, the power supply switching speed of the power supply system is improved, and the synchronism and the safety of the power supply system are guaranteed.
According to a second aspect of the present invention, there is provided a control device for a solid-state switch for controlling a power supply system for supplying power to a load, the power supply system including a solid-state switch, an energy storage converter, a battery, and a power grid, the energy storage converter being connected to the battery, the solid-state switch being connected to the power grid, the power grid being connected to the energy storage converter, the load being connected to the solid-state switch and the energy storage converter, respectively, the control device for the solid-state switch comprising: the control module is used for closing the solid-state change-over switch under the condition that the load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid; and the control module is also used for stopping the operation of the energy storage converter and supplying power to the load through the power grid under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase.
According to the control device of the solid-state change-over switch, under the condition that a load is powered through the energy storage converter and the battery, and the power supply state of the power grid is the condition that the load can be powered, the solid-state change-over switch is closed, the first voltage and the first phase of the power grid are detected, the second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid, the power supply system stops running the energy storage converter under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase, the load is powered through the power grid, the power supply switching time of the power supply system is greatly shortened, the power supply switching speed of the power supply system is improved, and the synchronism and the safety of the power supply system are guaranteed.
According to a third aspect of the present invention, there is provided another control device for a solid-state switch, comprising a processor and a memory, wherein a program or an instruction is stored in the memory, which program or instruction, when executed by the processor, implements the steps of the control method for a solid-state switch according to any of the above-mentioned aspects. Therefore, the control device of the solid-state switch has all the advantages of the control method of the solid-state switch in any one of the above technical schemes, and will not be described herein.
According to a fourth aspect of the present invention, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement a method of controlling a solid state switch as in any of the above aspects. Therefore, the readable storage medium has all the advantages of the control method of the solid-state switch in any of the above embodiments, and will not be described herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 shows one of the flow diagrams of a control method of a solid state switch in an embodiment of the invention;
FIG. 2 is a second flow chart of a control method of a solid-state switch according to an embodiment of the invention;
FIG. 3 is a third flow chart of a method for controlling a solid-state switch according to an embodiment of the invention;
FIG. 4 is a flow chart showing a method of controlling a solid state switch in an embodiment of the invention;
FIG. 5 is a flow chart of a method of controlling a solid state switch in an embodiment of the invention;
FIG. 6 is a flow chart showing a control method of a solid-state switch in an embodiment of the invention;
FIG. 7 is a flow chart of a method of controlling a solid state switch in an embodiment of the invention;
FIG. 8 shows one of the block diagrams of the control device of the solid-state changeover switch in the embodiment of the present invention;
FIG. 9 shows one of the schematic diagrams of the control device of the solid state transfer switch in an embodiment of the invention;
FIG. 10 shows a second schematic diagram of a control device for a solid state switch in an embodiment of the invention;
fig. 11 shows a second block diagram of the control device of the solid-state switch in the embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and the scope of the invention is therefore not limited to the specific embodiments disclosed below.
The method, the device and the readable storage medium for controlling the solid-state switch provided in the embodiments of the present application are described in detail below with reference to fig. 1 to 11 through specific embodiments and application scenarios thereof.
In one embodiment according to the present application, as shown in fig. 1, a method for controlling a solid-state switch is provided, where the method for controlling a solid-state switch includes:
102, when a load is powered by an energy storage converter and a battery and the power supply state of a power grid is powerable, closing a solid-state change-over switch, and adjusting a second voltage and a second phase of the energy storage converter according to a first voltage and a first phase of the power grid;
and 104, stopping the operation of the energy storage converter when the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supplying power to the load through the power grid.
In this embodiment, a control method of a solid-state switch is provided, where the solid-state switch is used to control a power supply system, the power supply system is a system for supplying power to a load, the power supply system includes a solid-state switch, an energy storage converter, a battery, and a power grid, the energy storage converter is connected to the battery, the solid-state switch is connected to the power grid, the power grid is connected to the energy storage converter, the load is connected to the solid-state switch and the energy storage converter, respectively, where the solid-state switch is a switch for switching power supplied to the power grid and the battery, and the energy storage converter is a device for converting current.
The battery may be embodied as a dc energy storage battery and the grid may be embodied as an ac grid, for example.
Under the condition that a load is powered through the energy storage converter and the battery, and the power supply state of the power grid is a power-available state, the power supply system indicates that the power supply state of the power grid is recovered, the power supply system closes the solid-state change-over switch, detects the first voltage and the first phase of the power grid, and adjusts the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid, wherein the power supply state of the power grid is the running state of the power grid, the first voltage is the real-time voltage of the power grid, the first phase is the real-time phase of the power grid, the second voltage is the voltage value at two ends of the energy storage converter, and the second phase is the phase of the energy storage converter.
In an exemplary embodiment, the power supply system opens the solid-state switching switch when the power supply state of the power grid is not powerable, and supplies power to the load via the energy storage converter and the battery.
And under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops operating the energy storage converter, and supplies power to the load through the power grid.
It should be noted that, after the second voltage and the second phase of the energy storage converter are adjusted to the first voltage and the first phase of the power grid, the energy storage converter is turned off again, so that stable operation of the power supply system can be ensured, and meanwhile, power supply safety to the load is ensured.
In addition, the state switching time of the solid-state switch is shorter, so that the power supply switching speed of the power supply system is ensured, and the state switching time of the solid-state switch can be specifically 5ms to 10ms.
According to the control method of the solid-state transfer switch in the embodiment, when the load is powered through the energy storage converter and the battery and the power supply state of the power grid is the power-available state, the solid-state transfer switch is closed, the first voltage and the first phase of the power grid are detected, the second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid, and when the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter, the load is powered through the power grid, the power supply switching time of the power supply system is greatly shortened, the power supply switching speed of the power supply system is improved, and meanwhile the synchronism and the safety of the power supply system are guaranteed.
In one embodiment according to the present application, as shown in fig. 2, a control method of a solid-state switch is provided, where the control method of the solid-state switch includes:
step 202, converting direct current output by a battery into alternating current through an energy storage converter so as to communicate the battery with a load;
step 204, supplying power to the load through the battery;
step 206, when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
and step 208, stopping the operation of the energy storage converter and supplying power to the load through the power grid when the second voltage is equal to the first voltage and the second phase is equal to the first phase.
In this embodiment, the power supply system activates the energy storage converter, through which, the direct current output by the battery is converted into alternating current so as to communicate the battery with the load, and then the battery supplies power to the load.
The power supply system opens the solid state transfer switch, activates the energy storage converter, and then supplies power to the load via the battery.
The control method of the solid-state change-over switch in the embodiment starts the energy storage converter, the direct current output by the battery is converted into alternating current through the energy storage converter so as to be communicated with the battery and the load, and then the battery is used for supplying power to the load, so that the running stability of the power supply system is ensured, and the normal power supply of the power supply system to the load is ensured under the condition that a power grid has a problem.
In one embodiment according to the present application, as shown in fig. 3, a control method of a solid-state switch is provided, where the control method of the solid-state switch includes:
step 302, when a load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
and step 304, stopping running the energy storage converter under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase, and communicating the power grid and the load through the solid-state change-over switch under the condition that the solid-state change-over switch is in a closed state so as to control the power grid to supply power to the load.
In the embodiment, when the solid-state switch is in a closed state, the power supply system is communicated with the power grid and the load through the solid-state switch, and further the power grid is controlled to supply power to the load.
Illustratively, the solid state transfer switch may include a thyristor.
Illustratively, the solid-state switch may include an insulated gate bipolar transistor.
According to the control method of the solid-state transfer switch in the embodiment, when the solid-state transfer switch is in a closed state, the power grid and the load are communicated through the solid-state transfer switch, so that the power grid is controlled to supply power to the load, the response speed of a power supply system is guaranteed through the solid-state transfer switch, and the normal power supply of the power supply system to the load is guaranteed.
In one embodiment according to the present application, as shown in fig. 4, a control method of a solid-state switch is provided, where the control method of the solid-state switch includes:
step 402, determining a power supply state of a power grid according to a first voltage of the power grid;
step 404, when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
and step 406, stopping the operation of the energy storage converter when the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supplying power to the load through the power grid.
In this embodiment, the power supply system detects the first voltage of the power grid in real time and determines the power supply state of the power grid according to the first voltage of the power grid.
The power supply state of the power grid may be, for example, in particular energizable or non-energizable.
The control method of the solid-state transfer switch in the embodiment detects the first voltage of the power grid in real time, determines the power supply state of the power grid according to the first voltage of the power grid, ensures the detection accuracy of the power supply state of the power grid, and further ensures the running stability of the power supply system.
In one embodiment according to the present application, as shown in fig. 5, a control method of a solid-state switch is provided, where the control method of the solid-state switch includes:
step 502, determining that the power supply state of the power grid is power-available under the condition that the first voltage is greater than or equal to a voltage threshold value;
step 504, determining that the power supply state of the power grid is not available under the condition that the first voltage is smaller than a voltage threshold value;
step 506, when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
and step 508, stopping the operation of the energy storage converter and supplying power to the load through the power grid when the second voltage is equal to the first voltage and the second phase is equal to the first phase.
In this embodiment, the power supply system detects the first voltage of the power grid in real time, and indicates that the power grid is well-functioning when the first voltage is greater than or equal to a voltage threshold, where the power supply system determines that the power supply state of the power grid is a power supply possible, and the voltage threshold is a threshold preset for the first voltage of the power grid.
And under the condition that the first voltage is smaller than the voltage threshold value, the operation of the power grid is described as a problem, and the power supply system determines the power supply state of the power grid as non-power supply.
The voltage threshold may be, for example, 300 volts.
The control method of the solid-state transfer switch in the embodiment determines that the power supply state of the power grid is powerable under the condition that the first voltage is greater than or equal to the voltage threshold value, and determines that the power supply state of the power grid is powerless under the condition that the first voltage is less than the voltage threshold value, so that the detection accuracy of the power supply state of the power grid is ensured, and the running stability of a power supply system is further ensured.
In one embodiment according to the present application, as shown in fig. 6, a control method of a solid-state switch is provided, where the control method of the solid-state switch includes:
step 602, when a load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
step 604, stopping the operation of the energy storage converter and supplying power to the load through the power grid when the second voltage is equal to the first voltage and the second phase is equal to the first phase;
step 606, detecting the electric quantity of the battery, and charging the battery through the power grid and the energy storage converter under the condition that the electric quantity of the battery is smaller than the electric quantity threshold value.
In this embodiment, the power supply system detects the electric quantity of the battery, and when the electric quantity of the battery is smaller than an electric quantity threshold value, the electric quantity of the battery is lower, and the power supply system controls the power grid and the energy storage converter to charge the battery, wherein the electric quantity threshold value is a preset threshold value for the electric quantity of the battery.
The charge threshold may be, for example, in particular 50%.
The control method of the solid-state change-over switch in the embodiment detects the electric quantity of the battery, and controls the power grid and the energy storage converter to charge the battery under the condition that the electric quantity of the battery is smaller than the electric quantity threshold value, so that the electric quantity of the battery is sufficient, and the running stability of the power supply system is further ensured.
In one embodiment according to the present application, as shown in fig. 7, a control method of a solid-state switch is provided, where the control method of the solid-state switch includes:
step 702, when a load is powered by the energy storage converter and the battery and the power supply state of the power grid is powerable, closing the solid-state change-over switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
step 704, stopping the operation of the energy storage converter and supplying power to the load through the power grid when the second voltage is equal to the first voltage and the second phase is equal to the first phase;
step 706, detecting the electric quantity of the battery, and converting the alternating current output by the power grid into direct current through the energy storage converter under the condition that the electric quantity of the battery is smaller than the electric quantity threshold value so as to connect the power grid and the battery;
at step 708, the battery is charged via the power grid.
In this embodiment, the power supply system detects the electric quantity of the battery, and when the electric quantity of the battery is smaller than the electric quantity threshold value, it is indicated that the electric quantity of the battery is lower, and the power supply system converts the alternating current output by the power grid into direct current through the energy storage converter so as to connect the power grid and the battery, and further control the power grid to charge the battery.
For example, in the case where the charge of the battery is greater than the charge threshold, it is indicated that the charge of the battery is sufficient.
The control method of the solid-state change-over switch in the embodiment detects the electric quantity of the battery, and under the condition that the electric quantity of the battery is smaller than the electric quantity threshold value, the alternating current output by the power grid is converted into direct current through the energy storage converter so as to be communicated with the power grid and the battery, and further the power grid is controlled to charge the battery, so that the sufficient electric quantity of the battery is ensured, and further the running stability of the power supply system is ensured.
As shown in fig. 8, in an embodiment of the present invention, there is provided a control device 800 for a solid-state switch, where the control device 800 for a solid-state switch includes:
the control module 802 is configured to close the solid-state switch when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is a power-available state, and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
the control module 802 is further configured to stop operating the energy storage converter when the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supply power to the load through the power grid.
In this embodiment, a control device 800 of a solid-state switch is provided, where the solid-state switch is used to control a power supply system, the power supply system is a system for supplying power to a load, the power supply system includes a solid-state switch, an energy storage converter, a battery, and a power grid, the energy storage converter is connected to the battery, the solid-state switch is connected to the power grid, the power grid is connected to the energy storage converter, the load is connected to the solid-state switch and the energy storage converter respectively, where the solid-state switch is a switch for switching power supplied to the power grid and the battery, and the energy storage converter is a device for converting current.
The battery may be embodied as a dc energy storage battery and the grid may be embodied as an ac grid, for example.
Under the condition that a load is powered through the energy storage converter and the battery, and the power supply state of the power grid is a power-available state, the power supply system indicates that the power supply state of the power grid is recovered, the power supply system closes the solid-state change-over switch, detects the first voltage and the first phase of the power grid, and adjusts the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid, wherein the power supply state of the power grid is the running state of the power grid, the first voltage is the real-time voltage of the power grid, the first phase is the real-time phase of the power grid, the second voltage is the voltage value at two ends of the energy storage converter, and the second phase is the phase of the energy storage converter.
In an exemplary embodiment, the power supply system opens the solid-state switching switch when the power supply state of the power grid is not powerable, and supplies power to the load via the energy storage converter and the battery.
And under the condition that the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops operating the energy storage converter, and supplies power to the load through the power grid.
It should be noted that, after the second voltage and the second phase of the energy storage converter are adjusted to the first voltage and the first phase of the power grid, the energy storage converter is turned off again, so that stable operation of the power supply system can be ensured, and meanwhile, power supply safety to the load is ensured.
In addition, the state switching time of the solid-state switch is shorter, so that the power supply switching speed of the power supply system is ensured, and the state switching time of the solid-state switch can be specifically 5ms to 10ms.
Illustratively, as shown in fig. 9, the power supply system includes a solid state switch, an energy storage converter, a battery, and a power grid, and is used to power a load.
As shown in fig. 10, the power supply system includes two modes of power supply and energy storage power supply, in which, in the case that the power supply system uses the power supply mode to supply power to the load, the energy storage converter is controlled to stand by, whether the power supply is powered off is judged, in the case that the power supply is not powered off, the energy storage converter is kept standby, in the case that the power supply is powered off, all semiconductors of the solid state switch are blocked, and the energy storage converter is started, and then the power supply mode is used to supply power to the load, the power supply system uses the energy storage converter to supply power to the load, in the case that the power supply is not recovered, the power supply system maintains the power supply of the energy storage converter, in the case that the power supply is recovered, the voltage and phase of the energy storage converter are regulated, the voltage and phase of the energy storage converter are detected, and the voltage and phase of the power supply are detected, in the case that the voltage and phase of the energy storage converter are not equal to the voltage and phase of the power supply, in the case that the voltage and phase of the power supply is not equal to the power supply is continuously detected, in the case that the voltage and phase of the power supply of the energy storage converter is triggered, in the solid state switch is triggered, and the power supply mode is controlled by all the semiconductors of the power supply mode.
In the control device 800 of the solid-state switch in this embodiment, when the load is powered by the energy storage converter and the battery, and the power supply state of the power grid is the power-capable state, the solid-state switch is closed, the first voltage and the first phase of the power grid are detected, the second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid, and when the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter, and supplies power to the load through the power grid, so that the power supply switching duration of the power supply system is greatly shortened, the power supply switching speed of the power supply system is improved, and the synchronism and the safety of the power supply system are ensured.
In the above embodiment, the control device 800 of the solid-state changeover switch further includes:
the control module 802 is further configured to convert direct current output by the battery into alternating current through the energy storage converter, so as to communicate the battery with the load;
the control module 802 is further configured to supply power to the load through the battery.
The control device 800 of the solid-state change-over switch in this embodiment starts the energy storage converter, and converts the direct current output by the battery into alternating current through the energy storage converter so as to communicate the battery with the load, and then supplies power to the load through the battery, so that the running stability of the power supply system is ensured, and the normal power supply of the power supply system to the load is ensured under the condition that the power grid has a problem.
In any of the above embodiments, the control device 800 of the solid-state switch further includes:
the control module 802 is further configured to communicate the power grid and the load through the solid-state switch when the solid-state switch is in a closed state, so as to control the power grid to supply power to the load.
The control device 800 of the solid-state switch in this embodiment connects the power grid and the load through the solid-state switch when the solid-state switch is in the closed state, so as to control the power grid to supply power to the load, and ensures the response speed of the power supply system through the solid-state switch and ensures the normal power supply of the power supply system to the load.
In any of the above embodiments, the control device 800 of the solid-state switch further includes:
the control module 802 is further configured to determine a power supply state of the power grid according to the first voltage of the power grid.
The control device 800 of the solid-state change-over switch in this embodiment detects the first voltage of the power grid in real time, and determines the power supply state of the power grid according to the first voltage of the power grid, so as to ensure the detection accuracy of the power supply state of the power grid, and further ensure the running stability of the power supply system.
In any of the above embodiments, the control device 800 of the solid-state switch further includes:
the control module 802 is further configured to determine that the power supply state of the power grid is a power available state if the first voltage is greater than or equal to the voltage threshold;
the control module 802 is further configured to determine that the power supply state of the power grid is not available for power supply if the first voltage is less than the voltage threshold.
The control device 800 of the solid-state change-over switch in this embodiment determines that the power supply state of the power grid is power-available when the first voltage is greater than or equal to the voltage threshold, and determines that the power supply state of the power grid is power-unavailable when the first voltage is less than the voltage threshold, so that the detection accuracy of the power supply state of the power grid is ensured, and further the running stability of the power supply system is ensured.
In any of the above embodiments, the control device 800 of the solid-state switch further includes:
the control module 802 is further configured to detect an electric quantity of the battery, and charge the battery through the power grid and the energy storage converter when the electric quantity of the battery is less than an electric quantity threshold.
The control device 800 of the solid-state switch in this embodiment detects the electric quantity of the battery, and controls the power grid and the energy storage converter to charge the battery under the condition that the electric quantity of the battery is smaller than the electric quantity threshold value, so that the electric quantity of the battery is sufficient, and further the running stability of the power supply system is ensured.
In any of the above embodiments, the control device 800 of the solid-state switch further includes:
the control module 802 is further configured to convert an alternating current output by the power grid into a direct current through the energy storage converter, so as to connect the power grid and the battery;
the control module 802 is further configured to charge the battery through the power grid.
The control device 800 of the solid-state change-over switch in this embodiment detects the electric quantity of the battery, and converts the alternating current output by the power grid into direct current through the energy storage converter under the condition that the electric quantity of the battery is smaller than the electric quantity threshold value, so as to communicate the power grid with the battery, further control the power grid to charge the battery, ensure that the electric quantity of the battery is sufficient, and further ensure the running stability of the power supply system.
In an embodiment according to the present application, as shown in fig. 11, a control device 1100 of a solid-state switch is provided, where the control device 1100 of a solid-state switch includes a processor 1102 and a memory 1104, and the memory 1104 stores a program or an instruction, where the program or the instruction is executed by the processor 1102 to implement the steps of the control method of a solid-state switch in any of the embodiments described above. Therefore, the control device 1100 of the solid-state switch has all the advantages of the control method of the solid-state switch in any of the above embodiments, which are not described herein.
In an embodiment according to the present application, there is provided a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the method of controlling a solid state switch in any of the embodiments described above, thereby having all the advantageous technical effects of the method of controlling a solid state switch in any of the embodiments described above.
Among them, readable storage media such as Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, and the like.
It is to be understood that in the claims, specification and drawings of the present invention, the term "plurality" means two or more, and unless otherwise explicitly defined, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and making the description process easier, and not for the purpose of indicating or implying that the apparatus or element in question must have the particular orientation described, be constructed and operated in the particular orientation, so that these descriptions should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly, and may be, for example, a fixed connection between a plurality of objects, a removable connection between a plurality of objects, or an integral connection; the objects may be directly connected to each other or indirectly connected to each other through an intermediate medium. The specific meaning of the terms in the present invention can be understood in detail from the above data by those of ordinary skill in the art.
In the claims, specification, and drawings of the present invention, the descriptions of terms "one embodiment," "some embodiments," "particular embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The control method of the solid-state transfer switch is characterized in that the solid-state transfer switch is used for controlling a power supply system, the power supply system is used for supplying power to a load, the power supply system comprises the solid-state transfer switch, an energy storage converter, a battery and a power grid, the energy storage converter is connected with the battery, the solid-state transfer switch is connected with the power grid, the power grid is connected with the energy storage converter, the load is respectively connected with the solid-state transfer switch and the energy storage converter, and the control method of the solid-state transfer switch comprises the following steps:
when the load is powered through the energy storage converter and the battery and the power supply state of the power grid is power-available, the solid-state change-over switch is closed, and the second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid;
and stopping the operation of the energy storage converter when the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supplying power to the load through the power grid.
2. The method according to claim 1, wherein the supplying the load via the energy storage converter and the battery comprises:
converting direct current output by the battery into alternating current through the energy storage converter so as to communicate the battery with the load;
and supplying power to the load through the battery.
3. The method according to claim 1, wherein said supplying said load through said grid comprises:
and when the solid-state transfer switch is in a closed state, the power grid and the load are communicated through the solid-state transfer switch so as to control the power grid to supply power to the load.
4. A method of controlling a solid state switch according to any one of claims 1 to 3, further comprising:
the power supply state of the power grid is determined from the first voltage of the power grid.
5. The method according to claim 4, wherein determining the power supply state of the power grid according to the first voltage of the power grid comprises:
determining that the power supply state of the power grid is powerable under the condition that the first voltage is greater than or equal to a voltage threshold value;
and determining that the power supply state of the power grid is non-powerable under the condition that the first voltage is smaller than the voltage threshold value.
6. A method of controlling a solid state transfer switch according to any one of claims 1 to 3, further comprising, after said power is supplied to said load via said power grid:
and detecting the electric quantity of the battery, and charging the battery through the power grid and the energy storage converter under the condition that the electric quantity of the battery is smaller than an electric quantity threshold value.
7. The method according to claim 6, wherein the charging the battery through the power grid and the energy storage converter specifically comprises:
converting alternating current output by the power grid into direct current through the energy storage converter so as to connect the power grid and the battery;
and charging the battery through the power grid.
8. The utility model provides a controlling means of solid-state change over switch, its characterized in that, solid-state change over switch is used for controlling power supply system, power supply system is used for supplying power to the load, power supply system includes solid-state change over switch, energy storage converter, battery and electric wire netting, energy storage converter with the battery is connected, solid-state change over switch with the electric wire netting is connected, the electric wire netting with energy storage converter is connected, the load respectively with solid-state change over switch with energy storage converter is connected, the controlling means of solid-state change over switch includes:
the control module is used for closing the solid-state change-over switch under the condition that the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power-available, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;
the control module is further configured to stop operating the energy storage converter when the second voltage is equal to the first voltage and the second phase is equal to the first phase, and power the load through the power grid.
9. A control device for a solid state transfer switch, comprising:
a processor;
a memory in which a program or instructions are stored, the processor implementing the steps of the method of controlling a solid state switch as claimed in any one of claims 1 to 7 when executing the program or instructions in the memory.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method of controlling a solid state switch according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310700591.2A CN116455047A (en) | 2023-06-14 | 2023-06-14 | Control method and device for solid-state change-over switch and readable storage medium |
| PCT/CN2023/100196 WO2024254783A1 (en) | 2023-06-14 | 2023-06-14 | Control method and apparatus for solid-state changeover switch, and readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310700591.2A CN116455047A (en) | 2023-06-14 | 2023-06-14 | Control method and device for solid-state change-over switch and readable storage medium |
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| CN116455047A true CN116455047A (en) | 2023-07-18 |
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| CN202310700591.2A Pending CN116455047A (en) | 2023-06-14 | 2023-06-14 | Control method and device for solid-state change-over switch and readable storage medium |
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| WO (1) | WO2024254783A1 (en) |
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| WO2024254783A1 (en) | 2024-12-19 |
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