CN113471964B - A user-side electricity dispatching system and method based on distributed power - Google Patents

Abstract

The invention discloses a user side power consumption scheduling system and method based on a distributed power supply, comprising the distributed power supply, a power supply module and a power supply module, wherein the distributed power supply is arranged in a user cell and is used for supplying power to residents in the cell; the dispatching terminal is used for collecting voltage information and current information of the user electric equipment, identifying the type of the user electric equipment according to the voltage information and the current information of the user electric equipment, and adjusting the power supply source of the user according to the type of the user electric equipment; the dispatching center acquires the electricity consumption information of the user through the dispatching terminal, performs data analysis according to the electricity consumption information of the user and establishes a user electricity consumption tendency data table; according to the invention, the electric equipment of each user is identified and regulated through the dispatching terminal, the power utilization dispatching at the user demand side is realized by combining the energy storage condition of the distributed power supply, the accurate dispatching of the electric equipment of the user by the power grid is realized, the regulation and control capability of the power grid on the whole power utilization is stronger, and the capability of the power grid for coping with risks is further improved.

Description

A user-side electricity dispatching system and method based on distributed power

technical field

The present invention relates to the technical field of user-side electricity dispatching, in particular to a user-side electricity dispatching system and method based on distributed power sources.

Background technique

After entering the new century, due to the gradual criticism of the safe operation level of the traditional power grid, the global warming, the aggravation of the energy crisis, and the rapid increase of electricity load, the technology of using new energy and renewable energy to connect to the grid for power generation needs to be developed and improved urgently. At the same time, driven by awareness of environmental protection, energy conservation and emission reduction, and the development of low-carbon economy, the concept of smart grid has emerged as the times require.

In the smart grid, demand side management (DSM) plays an important role in controlling energy consumption and improving energy efficiency. At the same time, it can reduce the peak-to-average ratio of the load curve to achieve a balance between supply and demand of electricity. At present, with the gradual entry of smart meters into residential households, optimizing residential energy consumption has become one of the research hotspots in smart grids. Smart electricity pricing is a common method of demand-side management for residential users. Grid companies encourage users to shift their transferable load from peak hours to off-peak hours by issuing real-time electricity prices.

For example, Chinese patent CN201210326197.9 discloses a user-side distributed power plug-and-play power management system based on a photovoltaic system. The application realizes low-power distributed power plug-and-play, grid-connected and off-grid operation through mechanical interfaces, power interfaces, and communication interfaces; through the distributed power inverter itself, it alleviates or even eliminates the problems caused by the distributed power grid connection. Adverse effects; however, accurate scheduling cannot be performed for each user.

Contents of the invention

The present invention mainly solves the problem in the existing technology that it is difficult for the power grid to accurately dispatch electricity on the user demand side; it provides a user-side electricity dispatch system and method based on distributed The equipment conducts power consumption detection, making the power grid dispatching more accurate.

The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: a user-side electricity dispatching system based on distributed power sources, including distributed power sources, which are set in user communities and used to supply power to residents in the communities; The terminal collects the voltage information and current information of the user's electrical equipment, identifies the type of the user's electrical equipment according to the voltage information and current information of the user's electrical equipment, and adjusts the user's power supply source according to the type of the user's electrical equipment; The dispatching center obtains the user's power consumption information through the dispatching terminal, conducts data analysis based on the user's power consumption information to establish a user's power consumption tendency data table, and performs grid power supply, distributed power supply power supply or power outage to the user according to the user's power consumption tendency data table deal with. By identifying the electrical equipment of each user and combining the energy storage of distributed power sources, the dispatching center realizes the power consumption dispatch on the user demand side, realizes the precise dispatch of the power grid to the user's electrical equipment, and makes the power grid more important for the overall power consumption. The regulatory ability is stronger, and the ability to deal with risks is further improved.

Preferably, the dispatching terminal is a smart plug-in strip installed in the user's home, and the smart plug-in strip includes a housing, which plays a role of support and protection, and cuts off the connection between the external plug and the power supply module during the power-off phase; the voltage The collection module is used to collect the instantaneous start-up voltage of the connected equipment connected to the plug strip, and is connected to the control module; the current collection module is used to collect the working current of the connected equipment connected to the plug strip, and is connected to the control module; the control module Judging the type of the connected device according to the instantaneous start-up voltage of the connected device transmitted by the voltage acquisition module and the working current of the connected device of the current acquisition module, and passing the judgment result to the dispatching center through the power carrier communication module; the power supply module is arranged in the casing, It is used to supply power to the connected equipment connected to the plug strip, and is connected to the control module; the power-off module is used to disconnect the power supply of the connected equipment connected to the plug strip, and is connected to the control module; the switching module is used to switch the power supply module Connect with grid or distributed power supply, connect with control module. Set the current acquisition module and the voltage acquisition module to collect the working current and the instantaneous start-up voltage of the connected equipment respectively, and judge the type of the connected equipment based on the two, which is more accurate and reduces judgment errors. The power grid is prepared according to the results delivered by the control module Identify the electrical equipment connected to different power strips under each user, realize the holographic perception of the user's power consumption, carry out precise regulation according to the load regulation requirements, and intelligently cut off the power of the connected devices with different power levels of the user, which is convenient for other users The normal use of electrical equipment also realizes load scheduling on the demand side of power grid users and achieves a win-win situation.

Preferably, the housing includes a base, an upper cover, a first stopper, a second stopper, a first spring, a first elastic limit post and a second elastic limit post, and the base is engaged with the upper cover , the upper cover is provided with a compartment, the upper plate and the lower plate of the compartment are provided with corresponding first jacks and second jacks, the lower plate is provided with a chute, and the first stop Both the block and the second block are slidably installed in the chute, one end of the first spring is connected to the first block, the other end of the first spring is connected to the second block, and the lower plate is provided with a second A limiting slot and a second limiting slot, the first elastic limiting column is installed in the first limiting slot, the second elastic limiting column is installed in the second limiting slot, the The first baffle is provided with a first card slot, the first card slot is matched with the first elastic limit post, the second block is provided with a second card slot, and the second card slot is matched with the second The elastic limit post is matched, and the first socket is cut off when the first stopper is limited and clamped by the first elastic limit post. When the second stopper is limited and clamped by the second elastic limit post, Block the second jack. When the user is in the power-off state, in order to prevent the user from plugging the electrical equipment into the socket, the socket of the socket is blocked by the first stopper and the second stopper, so as to prevent the voltage from being too high at the moment of power failure. High, resulting in an electric arc at the contact part between the user's electrical equipment and the power supply jack of the plug-in strip, which improves safety.

Preferably, the first elastic limit post includes a second spring, a first limit block and a first electronic switch, the first end of the second spring is connected to the bottom of the first limit slot, the The second end of the second spring is connected with the tail of the first limiting block. When the second spring shrinks, the head of the first limiting block is flat with the notch of the first limiting slot, and the second spring In the natural state, the head of the first limiting block abuts against the bottom of the first slot, the second spring is connected to the power supply module through the first electronic switch, and the control terminal of the first electronic switch is connected to the Control module connection. Through the power-on contraction or power-off recovery of the second spring, the contraction or extension of the first limit column is realized, and the normal sliding or limit clamping of the first stopper is realized.

Preferably, the second elastic limit post includes a third spring, a second limit block and a second electronic switch, the first end of the third spring is connected to the bottom of the second limit slot, the The second end of the third spring is connected with the tail of the second limiting block. When the third spring shrinks, the head of the second limiting block is flat with the notch of the second limiting slot, and the third spring In the natural state, the head of the second limiting block abuts against the bottom of the second card slot, the third spring is connected to the power supply module through the second electronic switch, and the control terminal of the second electronic switch is connected to the Control module connection. Through the power-on contraction or power-off recovery of the third spring, the contraction or extension of the second limit post is realized, and the normal sliding or limit clamping of the second stopper is realized.

Preferably, the head of the first limiting block is provided with a first magnet, the bottom of the first slot is provided with a second magnet, and the first magnet and the second magnet are matched. Through the mutual attraction of the first magnet and the second magnetism, the clamping connection between the first limiting block and the first engaging slot is more firm and reliable.

Preferably, the head of the second limiting block is provided with a third magnet, the bottom of the second locking slot is provided with a fourth magnet, and the third magnet matches the fourth magnet. Through the mutual attraction of the third magnet and the fourth magnetism, the clamping connection between the second limiting block and the second locking slot is more firm and reliable.

Preferably, the shapes of the first stopper and the second stopper are both right triangles. It is convenient for the plug of the user's electrical equipment to be inserted into the socket.

A user-side electricity scheduling method based on distributed power sources, comprising the following steps:

S1: Obtain the instantaneous starting voltage and working current of the user's electrical equipment;

S2: Judge the user's electrical equipment type according to the different instantaneous starting voltage and working current of different electrical equipment;

S3: Record the time and duration of power consumption of different electrical equipment of the user;

S4: Establish the user's electricity consumption tendency data table according to the power consumption time and power consumption time of different electrical equipment of the user and the power consumption of different equipment;

S5: The dispatching center performs power supply adjustment or power outage processing for users in combination with the user's electricity consumption tendency data table, the energy storage status of distributed power sources, and the distribution status of power grid power consumption peaks.

Preferably, a plurality of smart plug-in strips are set in the user's home, and when power-off processing is performed for the user, the corresponding smart plug-in strips are powered off according to different electrical equipment.

The beneficial effects of the present invention are: through the scheduling terminal to identify and adjust each user's power consumption equipment, combined with the energy storage situation of the distributed power supply, realize the power consumption scheduling on the user's demand side, and realize the power grid's control of the user's power consumption equipment. Precise scheduling makes the power grid more capable of regulating the overall power consumption and further improves the power grid's ability to deal with risks.

Description of drawings

Fig. 1 is a structural block diagram of an electricity dispatching system according to an embodiment of the present invention.

Fig. 2 is a structural block diagram of an intelligent plug-in strip according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a casing according to an embodiment of the present invention.

In the figure 1, the upper cover, 2, the base, 3, the first jack, 4, the second jack, 5, the first stopper, 6, the second stopper, 7, the first spring, 8, the first limit Position block, 9, second spring, 10, first card slot, 11, second limit block, 12, third spring, 13, second card slot, 211, control module, 212, voltage acquisition module, 213, Current acquisition module, 214, power supply module, 215, power outage module, 216, power carrier communication module, 311, distributed power supply, 312, dispatch center, 313, dispatch terminal.

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment: a user-side electricity dispatching system based on distributed power sources, as shown in FIG. According to the voltage information and current information of the user's electrical equipment, the type of the user's electrical equipment is identified according to the voltage information and current information of the user's electrical equipment, and the user's power supply source is adjusted according to the type of the user's electrical equipment; The terminal obtains the user's electricity consumption information, conducts data analysis based on the user's electricity consumption information to establish a user's electricity consumption tendency data table, and performs grid power supply, distributed power supply power supply or power outage processing for the user according to the user's electricity consumption tendency data table.

As shown in Figure 2, the dispatching terminal is a smart plug-in strip installed in the user's home. The smart plug-in strip includes a housing (not shown in Figure 2), which plays a role of support and protection, and isolates the external plug from the The connection of the power supply module; the voltage collection module 212 is used to collect the instantaneous start-up voltage of the connected equipment connected to the plug strip, and is connected with the control module; the current collection module 213 is used to collect the working current of the connected equipment connected to the plug strip , connected with the control module; the control module 211 judges the type of the connected device according to the instantaneous starting voltage of the connected device transmitted by the voltage acquisition module and the working current of the connected device of the current acquisition module, and passes the judgment result to the dispatcher through the power carrier communication module 216 Center; power supply module 214, set in the housing, used to supply power to the connected equipment connected to the plug-in strip, and connected to the control module; power-off module 215, used to disconnect the power supply of the connected equipment connected to the plug-in strip, and connected to the control module Module connection, switch module (not shown in Fig. 2), connect the power supply module to the grid or to the distributed power supply through switching, and connect to the control module.

As shown in Figure 3, the housing includes a base 2, an upper cover 1, a first block 5, a second block 6, a first spring 7, a first elastic limit post and a second elastic limit post, the base and the upper The cover is clamped, the upper cover is provided with a compartment, the upper plate and the lower plate of the compartment are provided with the corresponding first jack 3 and the second jack 4, the lower plate is provided with a chute, the first stopper and the second Both stoppers are slidably installed in the chute, one end of the first spring is connected to the first stopper, the other end of the first spring is connected to the second stopper, and the lower plate is provided with a first limiter slot and a second limiter. Position slot, the first elastic limit post is installed in the first limit slot, the second elastic limit post is installed in the second limit slot, the first baffle is provided with the first card slot 10, the first The draw-in groove matches the first elastic limit post, the second block is provided with a second draw-in groove 13, the second draw-in slot matches the second elastic limit post, and the first block is limited by the first elastic limit post. The first socket is cut off when the position is clamped, and the second socket is blocked when the second stopper is clamped by the second elastic limit post.

The voltage acquisition module, the current acquisition module, the control module, the power supply module and the power-off module are all arranged in the base.

The first elastic limit post includes a second spring 9, a first limit block 8 and a first electronic switch, the first end of the second spring is connected to the bottom of the first limit slot, and the second end of the second spring is connected to the bottom of the first limit slot. The tail of the first limit block is connected, the head of the first limit block is flat with the notch of the first limit slot when the second spring contracts, and the head of the first limit block when the second spring is in a natural state The second spring is connected to the power supply module through the first electronic switch, and the control terminal of the first electronic switch is connected to the control module.

The second elastic limit post includes a third spring 12, a second limit block 11 and a second electronic switch, the first end of the third spring is connected to the bottom of the second limit slot, and the second end of the third spring is connected to the bottom of the second limit slot. The tail of the second limiting block is connected. When the third spring contracts, the head of the second limiting block is flat with the notch of the second limiting slot. When the third spring is in the natural state, the head of the second limiting block It abuts against the bottom of the second card slot, the third spring is connected to the power supply module through the second electronic switch, and the control terminal of the second electronic switch is connected to the control module.

The head of the first limiting block is provided with a first magnet, the bottom of the first card slot is provided with a second magnet, and the first magnet matches the second magnet.

The head of the second limiting block is provided with a third magnet, the bottom of the second slot is provided with a fourth magnet, and the third magnet matches the fourth magnet.

The shapes of the first stopper and the second stopper are both right triangles, and the hypotenuses of the right triangles correspond to the positions of the sockets on the upper plate.

The groove bottom of the first engaging groove, the groove bottom of the second engaging groove, the head of the first limiting block and the head of the second limiting block are all arc-shaped. Through the arc-shaped contact surface, the head of the first limiting block and the bottom of the first card slot are connected more firmly and reliably under the adsorption force of the first magnet and the second magnet, so that the plug of the external connection device squeezes When the hypotenuse of the first stopper of the right triangle is pressed, the first stopper no longer slides along the chute, the first jack of the lower board corresponds to the first jack of the upper board, and the plug of the external connection device is connected to the socket on the base. connected to the power supply module.

A user-side electricity scheduling method based on distributed power sources, comprising the following steps:

S1: Obtain the instantaneous starting voltage and working current of the user's electrical equipment;

S2: Judge the user's electrical equipment type according to the different instantaneous starting voltage and working current of different electrical equipment;

S3: Record the time and duration of power consumption of different electrical equipment of the user;

S4: Establish the user's electricity consumption tendency data table according to the power consumption time and power consumption time of different electrical equipment of the user and the power consumption of different equipment;

S5: The dispatching center performs power supply adjustment or power outage processing for users in combination with the user's electricity consumption tendency data table, the energy storage status of distributed power sources, and the distribution status of power grid power consumption peaks.

Multiple smart plug-in strips are set up in the user's home. When the user is powered off, the corresponding smart plug-in strips are powered off according to the different electrical equipment.

The power supply module is several two-prong jacks or three-prong jacks. At the same time, it is also equipped with a power supply module, which is connected to the grid wire or distributed power supply through the switching module, and is converted to 5V voltage by the power supply module to supply power for the control module. The electrical module disconnects the connection between the two-prong jack or three-prong jack and the 110V or 220V grid wire, and the power supply of the power module and the control module is normal, and is not affected by the power-off module.

The distributed power supply uses a micro-energy storage station with photovoltaic power generation. When the dispatch center does not operate the distributed power supply, the micro-energy storage station uses photovoltaic power generation to store electric energy, effectively saving energy.

The smart plug-in strip of the present invention is mainly used in the load scheduling of power grid users. Through the current acquisition module and the voltage acquisition module, the working current and the instantaneous start-up voltage of the connected equipment are collected respectively, so as to realize the precise load management of household loads, and the management is more detailed and can be managed Small household appliances, such as table lamps, mobile phones, shavers and other chargers, are based on power carrier communication, without the need for facilities and communication changes, and can be plug-and-play, which is more convenient.

The control module of the present invention is a metering chip. When collecting the working current and instantaneous start-up voltage of the user's connected equipment, the user's electricity consumption habits and types of electricity consumption are analyzed through the collected current waveform and voltage waveform, so as to realize residential electricity consumption. Analysis of habits, automatic identification of connected load types (such as mobile phone chargers, etc.), can form a large amount of power data, and analyze residents' electricity consumption habits for small household appliances, such as peak use hours of desk lamps, usage habits of mobile phone chargers , at the same time, electrical appliances can be managed by grid companies, such as mobile phone chargers, which can be powered off at 2 or 3 o'clock in the morning every day to avoid overshooting, and can intelligently realize the intelligent control of each socket of the socket, and can also realize The control and management of the entire socket are more refined.

The working principle of the present invention is: under normal circumstances, the first spring, the second spring and the third spring are all in the state of energization and contraction. After the user and the power grid, the power-off time is agreed upon. The electric module cuts off the power to the user, and blocks the jacks that are not inserted into the user's electrical equipment. The control module first cuts off the power to the first spring, and the first spring returns to the natural state. During the process of the first spring returning to the natural state Push the first stopper and the second stopper to both sides, so that the first stopper blocks the first socket, the second stopper blocks the second socket, and at the same time, the position of the first slot of the first stopper reaches The position of the first elastic limit post, the position of the second slot of the second block reaches the position of the second elastic limit post, and then the second spring and the third spring are de-energized, and the second spring and the third spring return In the natural state, when the second spring and the third spring return to the natural state, push up the first limit block and the second limit block, so that the first limit block is engaged with the first slot, and the second limit block The bit block is connected to the second card slot, and the built-in magnet makes the connection more firm and tight, preventing the voltage from being too high at the moment of power failure and incoming calls, causing the contact between the user's electrical equipment and the power supply jack of the power strip Generate electric arc and improve safety.

The embodiment described above is only a preferred solution of the present invention, and does not limit the present invention in any form. There are other variations and modifications on the premise of not exceeding the technical solution described in the claims.

Claims (8)

1. A distributed power source-based user-side power consumption scheduling system, comprising:

the distributed power supply is arranged in the user cell and is used for supplying power to residents in the cell;

the dispatching terminal is used for collecting voltage information and current information of the user electric equipment, identifying the type of the user electric equipment according to the voltage information and the current information of the user electric equipment, and adjusting the power supply source of the user according to the type of the user electric equipment;

the dispatching center acquires the electricity consumption information of the user through the dispatching terminal, performs data analysis according to the electricity consumption information of the user to establish a user electricity consumption trend data table, and performs power grid power supply, distributed power supply or power failure treatment on the user according to the user electricity consumption trend data table;

the dispatching terminal is an intelligent power strip installed in a user family, and the intelligent power strip comprises

The shell plays a role in supporting and protecting, and cuts off the connection between the external plug and the power supply module in the power-off stage;

the voltage acquisition module is used for acquiring instant starting voltage of the connecting equipment connected to the power strip and is connected with the control module;

the current acquisition module is used for acquiring working current of the connecting equipment connected to the power strip and is connected with the control module;

the control module judges the type of the connecting equipment according to the instant starting voltage of the connecting equipment transmitted by the voltage acquisition module and the working current of the connecting equipment of the current acquisition module, and transmits the judging result to the dispatching center through the power carrier communication module;

the power supply module is arranged in the shell and is used for supplying power to the connecting equipment connected to the power strip and is connected with the control module;

the power-off module is used for disconnecting the power supply of the connecting equipment connected to the power strip and is connected with the control module;

the switching module is connected with the power grid or the distributed power supply through switching, and is connected with the control module;

the casing includes base, upper cover, first dog, second dog, first spring, first elasticity spacing post and second elasticity spacing post, base and upper cover joint, the upper cover is equipped with the compartment, the upper plate and the hypoplastron of compartment all are provided with corresponding first jack and second jack, the hypoplastron is provided with the spout, first dog and the equal slidable mounting of second dog are in the spout, the one end and the first dog of first spring are connected, the other end and the second dog of first spring are connected, the hypoplastron is provided with first spacing slotted hole and second spacing slotted hole, first elasticity spacing post is installed in first spacing slotted hole, second elasticity spacing post is installed in the second spacing slotted hole, first dog is provided with first draw-in groove, first draw-in groove and first elasticity spacing post phase-match, the second dog is provided with the second draw-in groove, second draw-in groove and second elasticity spacing post phase-match, first limit post will be cut off by first elasticity spacing post when cutting off first jack, second elasticity spacing post will be cut off.

2. The power consumption scheduling system of claim 1, wherein the power consumption scheduling system comprises a plurality of power consumption scheduling units,

the first elastic limit column comprises a second spring, a first limit block and a first electronic switch, wherein the first end of the second spring is connected with the bottom of the first limit slot, the second end of the second spring is connected with the tail of the first limit block, the head of the first limit block is leveled with the notch of the first limit slot when the second spring contracts, the head of the first limit block is abutted with the bottom of the first clamping slot when the second spring is in a natural state, the second spring is connected with the power supply module through the first electronic switch, and the control end of the first electronic switch is connected with the control module.

3. A distributed power source-based customer-side power consumption scheduling system according to claim 1 or 2, wherein,

the second elastic limit column comprises a third spring, a second limit block and a second electronic switch, wherein the first end of the third spring is connected with the bottom of the second limit slot, the second end of the third spring is connected with the tail of the second limit block, the head of the second limit block is leveled with the notch of the second limit slot when the third spring contracts, the head of the second limit block is abutted with the bottom of the second clamping slot when the third spring is in a natural state, the third spring is connected with the power supply module through the second electronic switch, and the control end of the second electronic switch is connected with the control module.

4. A distributed power source-based customer-side power consumption scheduling system according to claim 2, wherein,

the head of first stopper is provided with first magnet, the tank bottom of first draw-in groove is provided with the second magnet, first magnet and second magnet assorted.

5. A distributed power source-based customer-side power consumption scheduling system according to claim 3, wherein,

the head of second stopper is provided with the third magnet, the tank bottom of second draw-in groove is provided with the fourth magnet, third magnet and fourth magnet assorted.

6. The power consumption scheduling system of claim 1, wherein the power consumption scheduling system comprises a plurality of power consumption scheduling units,

the first stop block and the second stop block are both right-angled triangles in shape.

7. The user side power consumption scheduling method based on the distributed power supply is suitable for the user side power consumption scheduling system based on the distributed power supply as claimed in claim 1, and is characterized by comprising the following steps:

s1: acquiring instant starting voltage and working current of electric equipment of a user;

s2: judging the type of the user's electric equipment according to the fact that different electric equipment has different instant starting voltages and working currents;

s3: recording the electricity utilization time and the electricity utilization time of different electric equipment of a user;

s4: establishing a user electricity tendency data table according to the electricity utilization time of different electric equipment of the user, the electricity utilization time and the electricity utilization power of different equipment;

s5: and the dispatching center is combined with the user electricity consumption trend data table, the distributed power supply energy storage state and the power grid electricity consumption peak distribution state to carry out power supply adjustment or power failure treatment on the user.

8. The method for scheduling power consumption on a user side based on a distributed power supply according to claim 7, wherein,

a plurality of intelligent power strip are arranged in a user family, and when the power of a user is cut off, the corresponding intelligent power strip is powered off according to different electric equipment.