Regionalized smart grid

Abstract

The invention relates to the field of electricity, in particular to a power supply technology. The regional intelligent power grid comprises an AI power utilization dispatching system for dispatching the power utilization condition of power utilization equipment, a power grid information acquisition system and at least one intelligent power supply control system, the power grid information acquisition system is used for acquiring power grid power supply information; the intelligent power supply control system is a control system used for controlling electric equipment to work; the AI power utilization dispatching system and the intelligent power supply control system are networked; the AI power consumption dispatching system runs a dispatching management software module, and the dispatching management software module dispatches a plurality of intelligent power supply control systems through remote networking according to power grid power supply information and sends the power grid power supply information and power consumption operation time periods to the intelligent power supply control systems, so that power consumption conditions of a plurality of power consumption devices are controlled. Power supply of the power grid is optimized, so that the output electric quantity of the power grid and the generating capacity of a power supply plant tend to be balanced; or before the power grid is maintained, electric equipment is used for completing necessary work in advance.

Description

Technical Field

[0001] The present invention relates to the field of electricity, and in particular to power supply technology. Background Art

[0002] The temporal imbalance of grid load is a major problem facing the current power system.

[0003] In order to encourage staggered electricity consumption, the power grid system has introduced a time-of-use electricity price plan. By setting peak electricity prices and off-peak electricity prices, it guides electricity-consuming equipment to flexibly use electricity during periods of more sufficient power supply.

[0004] However, some people are not sensitive to electricity prices, so the time-of-use electricity price plan has little effect on this group of people.

[0005] In addition, the time-of-use electricity price only roughly divides the time period into several periods. It is difficult to manage according to the characteristics of the electricity consumption area or the characteristics of the electricity consumption season.

[0006] Therefore, there is a need for an intelligent power grid management system that does not require active user intervention for peak and valley management, can balance peaks and valleys in a timely and refined manner in different areas and different micro-time periods, and can appropriately eliminate or reduce harmonics. Summary of the invention

[0007] The object of the present invention is to provide a regionalized smart grid to solve at least one of the above-mentioned technical problems.

[0008] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0009] A regionalized smart grid includes a microprocessor system for dispatching the power consumption of power-consuming equipment, called an AI power dispatching system, a power grid information collection system, and at least one intelligent power supply control system;

[0010] The AI ​​power dispatching system is installed in the substation as the dispatching and control center of the regional power grid;

[0011] The power grid information collection system is used to obtain power grid power supply information, including at least one type of information including: power grid output, power generation of power plants, and power grid maintenance information;

[0012] The AI ​​power dispatching system connects to the power grid information collection system to obtain power grid power supply information;

[0013] Intelligent power supply control system is a control system used to control the operation of electrical equipment;

[0014] It also includes a network module, through which the AI ​​power dispatching system is remotely connected to the intelligent power supply control system;

[0015] The AI ​​power dispatching system runs a dispatching management software module. After obtaining the power supply information of the power grid through the power grid information collection system, the dispatching management software module dispatches a large number of intelligent power supply control systems through remote networking according to the power supply information of the power grid, and sends the power supply information and power operation time period to the intelligent power supply control system, thereby realizing the AI ​​power dispatching system to control the power consumption of a large number of power-consuming equipment, optimize the power supply of the power grid, and make the output power of the power grid and the power generation of the power supply plant tend to be balanced; or before the power grid maintenance, use electrical equipment to complete the necessary work in advance;

[0016] The intelligent power supply control system runs a power supply time management software module, which selects the power supply time period for the power equipment based on the power supply information of the power grid, the allocated power operation time period, the type of power equipment, the working time of the power equipment, and the time limit for the power equipment to complete the work.

[0017] In the above design, the regional smart grid includes an AI power dispatching system, which is used for data collection and storage, signal processing, logical operations, network connection and control output. The AI ​​power dispatching system is connected to the power grid information collection system to obtain power grid power supply information as the basis for signal processing and logical operations. The intelligent power supply control system is bound to the power-consuming equipment to control the operation of the power-consuming equipment. The AI ​​power dispatching system and the intelligent power supply control system are connected to the network through a network module.

[0018] The AI ​​power dispatching system is connected to a network module to form a central base station for point-to-point networking to access multiple intelligent power supply control systems, thereby enabling the AI ​​power dispatching system to control the time periods of power-consuming equipment connected to the power grid.

[0019] The working mode and working time of power consumption equipment are managed by the regional smart grid. Based on the grid information sent by the grid information collection system, the AI ​​power consumption dispatching system combines the type of power consumption equipment, the working time of the power consumption equipment, and the time limit for the power consumption equipment to complete the work, the regional smart grid independently selects the working time plan to make the output power of the power grid and the power generation of the power plant tend to be balanced, or avoid grid maintenance.

[0020] Because regionalized smart grids can set individual power consumption plans for almost every power-consuming device, the control accuracy can reach every tiny power consumption period of every power-consuming device in each area, which greatly serves the power grid.

[0021] The intelligent power supply control system is used to control the power consumption period of the power-consuming equipment. The intelligent power supply control system adopts the high-performance, low-cost, and low-power STM32 embedded single-chip microcomputer. The power supply time management software module can independently complete the logical operation according to the relevant parameters such as the power grid information, the type of power-consuming equipment, the working time of the power-consuming equipment, and the time limit for the power-consuming equipment to complete the work, and obtain the optimized power supply time period of the power-consuming equipment.

[0022] Furthermore, the network module adopts a LORA communication module; at least two LORA communication modules are provided, one is connected to the AI ​​power dispatching system, and the other is connected to the intelligent power supply control system, and the two LORA communication modules are point-to-point networked to form a regionalized network.

[0023] In the above design, the LORA communication module is a low-power wide area network wireless communication module based on the existing long-range radio technology. It is 3 to 5 times the traditional wireless radio frequency communication distance, and the effective distance can cover a range of 10km. It has low operating costs and can be easily integrated into the system based on long-range radio connection technology. The AI ​​power dispatching system and the intelligent power supply control system form a regionalized network through the LORA communication module, and the two LORA communication modules directly exchange data point-to-point.

[0024] Furthermore, the intelligent power supply control system enters a ready-to-work state, requiring the user to input a work completion time, or generating a work completion time based on device attributes;

[0025] After entering the preparation state and before the work is completed, a time period for working is selected based on information including the output power information of the power grid.

[0026] In the above design, the intelligent power supply control system needs to collect the work completion time of the power-consuming equipment, and then select the time period to optimize the power grid from the time it enters the preparation work state to the time when the work is completed, such as staggering the peak of the power grid, or staggering the maintenance period of the power grid.

[0027] Furthermore, the intelligent power supply control system is provided with a work completion time memory function, which is used to automatically call up the memorized work completion time when the electrical equipment enters the ready-to-work state.

[0028] The above design eliminates the need for users to set the work completion time each time, thereby solving the problem of users who are not sensitive to electricity prices being reluctant to handle the work.

[0029] Furthermore, the AI ​​power dispatching system obtains data such as the number, type, and power consumption of power-consuming equipment to be completed within a period of time through numerous intelligent power supply control systems;

[0030] The dispatch management software module is responsible for calculating and optimizing the number, type, power consumption and other data of electrical equipment put into operation in each period;

[0031] And transmit the control information to the intelligent power supply control system to realize control.

[0032] Furthermore, the AI ​​power dispatching system will stagger the working hours of various power-consuming equipment in the power grid in an orderly manner; the equipment that generates harmonics in the power grid will work at off-peak times; and the power-consuming equipment that has a mutual inhibitory effect on the power grid harmonics will be deployed to work simultaneously.

[0033] In the above design, the AI ​​power dispatching system staggers the working hours of various power-consuming equipment in the power grid in an orderly manner, which has the beneficial effect of improving the smoothness of the power grid. In addition, for equipment that will generate harmonics to the power grid after operation, it is more necessary to work in an orderly manner to stagger the peak hours to prevent the superposition of power grid harmonics from causing more serious pollution to the power grid, while power-consuming equipment that generates power grid harmonics that have a mutually offsetting effect are arranged to work in the same period of time.

[0034] Furthermore, the intelligent power supply control system, alone or in interaction with the AI ​​power dispatching system, formulates a time-limited strategy to avoid grid maintenance time and complete the work ahead of time.

[0035] Strategies for balancing the power grid:

[0036] For example, there is a charging system for charging electric vehicles. The time when the electric vehicle is connected to the charging system is 6 pm, and the time when the electric vehicle is charged is set to 9 o'clock the next day. The existing charging system automatically charges after being plugged in, and until it is full.

[0037] However, this design can automatically avoid the peak period according to the power supply load of the power grid, and even automatically select the lowest period. Because it has the characteristic of accurately selecting the lowest period, it is beneficial to the power grid system, so it has the conditions to obtain lower prices.

[0038] Similarly, we can use the AI ​​power scheduling system to optimize the working time periods of electric vehicles that need to be charged, rice cookers, refrigerators, electric kettles that are scheduled at night, washing machines that are allowed to wait, and other equipment.

[0039] For air conditioners, refrigerators and other power-intensive appliances, especially those that are not variable-frequency air conditioners and refrigerators, because the compressor is not always in working condition and there are working gaps, the AI ​​power scheduling system can accurately control the start-up time of each motor through an intelligent power supply control system.

[0040] It has positive significance especially for shopping malls, cold storage, etc.

[0041] By staggering the working hours of numerous compressors, the smoothness of the power supply of the power grid is greatly improved, and it is conducive to eliminating the harmonics of the power grid. Even by monitoring the working current waveform of each device, some useless work of the power grid can be eliminated by selecting compressors with complementary waveforms.

[0042] Preparing for grid maintenance:

[0043] When the power grid needs maintenance, the AI ​​power dispatching system sends information about expected power grid maintenance to the intelligent power supply control system.

[0044] Because the intelligent power supply control system has independent control characteristics, it has extremely high accuracy. Even if it is not a large-scale power grid maintenance, but only a small area power grid maintenance, such as community power grid maintenance, industrial area power grid maintenance, it can also respond in a targeted manner in a small area.

[0045] For example, when the intelligent power supply control system is connected to the refrigerator, it can strongly cool down the freezing area before the estimated grid maintenance time, and enter the motor sleep state in advance to prevent the reverse current generated by the inductance effect of the motor from damaging the refrigerator itself or even impacting the grid.

[0046] For example, when the intelligent power supply control system is connected to the aquarium oxygen supply system, a strong oxygen supply can be performed on the aquarium oxygen supply system before the expected power grid maintenance time.

[0047] For example, when the intelligent power supply control system is connected to the charging device, the charging device can be fast charged before the estimated grid maintenance time.

[0048] For example, when the intelligent power supply control system is connected to the air conditioner, it can increase the power of the air conditioner before the estimated grid maintenance time. For example, in the heating state, the heating temperature is increased; in the cooling state, the cooling temperature is reduced. And the motor enters the dormant state in advance to avoid the reverse current generated by the inductance effect of the motor from damaging the air conditioner or even impacting the grid.

[0049] A mobile phone software system is provided, and the mobile phone software system is allowed to control the intelligent power supply control system, and the control level of the mobile phone software system is allowed to be higher than the automatic control level of the AI ​​power dispatching system and the intelligent power supply control system, so that users can take over the control of power equipment at any time.

[0050] Furthermore, the intelligent power supply control system also includes an active filter system;

[0051] The active filter system includes a CT current acquisition device and a compensation current management module;

[0052] The CT current acquisition device is a device that collects grid current changes through a current mutual induction circuit, is set at one end of the grid, and has an induction signal output interface for outputting induction waveform data;

[0053] The compensation current management module is a compensation current generating device that uses an IGMT inverter bridge to generate the required compensation current waveform and superimposes it back to the power grid. The compensation current management module has a compensation output terminal and a control input terminal driven by pulse width modulation.

[0054] The data acquisition end of the intelligent power supply control system is connected to the induction signal output interface of the CT current acquisition device, and compensation calculation is performed according to the induction waveform to obtain compensation waveform data;

[0055] The intelligent power supply control system is connected to the control input end of the compensation current management module, controls the compensation current management module to generate a compensation waveform and outputs it to the power grid in a superimposed manner.

[0056] In the above design, the intelligent control system collects the harmonic waveform in the power grid through the CT current acquisition device, and after harmonic analysis and calculation of the real-time compensation current, drives the compensation current management module through high-frequency pulse width modulation (PWM) technology to generate the required compensation current waveform, and compensates the power grid to achieve the purpose of filtering out harmonics and obtaining the ideal load input current.

[0057] The AI ​​power dispatching system of this patent obtains data such as the number, type, and power consumption of power-consuming equipment to be completed within a time period by connecting to many intelligent power supply control systems. After calculation and optimization, the control dispatching plan is transmitted to each intelligent power supply control system for execution, thereby realizing orderly dispatch of peak-shifting work. Its beneficial effect is to make the power grid tend to balance.

[0058] In addition, the intelligent power supply control system collects the changes in the current waveform of the smart grid through the current mutual induction circuit, calculates the real-time compensation current through harmonic analysis, and then generates a compensation current waveform through the compensation current management module to implement compensation superposition on the smart grid, thereby filtering or reducing harmonics and purifying the power grid environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0060] Figure 1 This is a schematic diagram of the regionalized intelligent working scenario of the present invention;

[0061] Figure 2It is a connection diagram of the regionalized networking module of the present invention;

[0062] Figure 3 It is a schematic diagram of the active filter of the present invention.

[0063] Explanation of symbols:

[0064] 1. AI power dispatching system; 2. Power grid information collection system; 3. Intelligent power supply control system; 4. Power grid. DETAILED DESCRIPTION

[0065] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0066] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0067] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0068] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0069] Reference Figure 1 , Figure 2 As shown, the regional smart grid includes a microprocessor system for dispatching the power consumption of power-consuming equipment, called an AI power dispatching system 1, a power grid information collection system 2, and at least one intelligent power supply control system 3;

[0070] The AI ​​power dispatching system 1 is installed in the substation as the dispatching and control center of the regional power grid;

[0071] The power grid information collection system 2 is used to obtain power grid power supply information, including at least one type of information including: output power of the power grid 4, power generation of the power plant, and power grid maintenance information;

[0072] The AI ​​power dispatching system 1 is connected to the power grid information collection system 2 to obtain power grid power supply information;

[0073] The intelligent power supply control system 3 is a control system used to control the operation of electrical equipment;

[0074] It also includes a network module, through which the AI ​​power dispatching system 1 is remotely connected to the intelligent power supply control system 3;

[0075] The AI ​​power dispatching system 1 runs a dispatching management software module. After the dispatching management software module obtains the power supply information of the power grid through the power grid information collection system 2, it dispatches a plurality of intelligent power supply control systems 3 through remote networking according to the power supply information of the power grid, sends the power supply information and power operation time period to the intelligent power supply control system 3, and then realizes the AI ​​power dispatching system 1 to control the power consumption of a plurality of power-consuming devices, optimizes the power supply of the power grid, and makes the output power of the power grid 4 and the power generation of the power supply plant tend to be balanced; or before the power grid maintenance, the necessary work is completed in advance using electrical equipment;

[0076] The intelligent power supply control system 3 runs a power supply time management software module, which selects a power supply time period for the power equipment based on the power supply information of the power grid, the allocated power operation time period, the type of power equipment, the working time of the power equipment, and the time limit for the power equipment to complete the work.

[0077] In this embodiment, the regionalized smart grid includes an AI power dispatching system 1, which is used for data collection and storage, signal processing, logical operations, network connection, and control output. The AI ​​power dispatching system 1 is connected to the power grid information collection system 2 to obtain power grid power supply information as a basis for signal processing and logical operations. The intelligent power supply control system 3 is bound to the power equipment to control the operation of the power equipment. The AI ​​power dispatching system 1 and the intelligent power supply control system 3 are connected to the network through a network module.

[0078] The AI ​​power dispatching system 1 is connected to a network module to form a central base station of a point-to-point network to access multiple intelligent power supply control systems 3, thereby enabling the AI ​​power dispatching system 1 to control the time periods of power equipment connected to the power grid 4.

[0079] The working mode and working time of the power equipment are managed by the regional smart grid. Based on the power grid 4 information sent by the power grid information collection system 2, the AI ​​power dispatching system 1 combines the type of power equipment, the working time of the power equipment, and the time limit for the power equipment to complete the work, and autonomously selects the working time plan to make the output power of the power grid 4 and the power generation of the power plant tend to be balanced, or avoid power grid maintenance.

[0080] Because the regionalized smart grid can set individual power consumption plans for almost every power-consuming device, the control accuracy reaches every tiny power consumption period of every power-consuming device in each area, which greatly serves the power grid 4.

[0081] The intelligent power supply control system 3 is used to control the power consumption period of the power-consuming equipment. The intelligent power supply control system 3 adopts the high-performance, low-cost, and low-power-consumption stm32 embedded single-chip microcomputer. The power supply time management software module can independently complete the logical operation according to the relevant parameters such as the power grid 4 information, the type of power-consuming equipment, the working time of the power-consuming equipment, and the time limit for the power-consuming equipment to complete the work, and obtain the optimized power supply time period of the power-consuming equipment.

[0082] Furthermore, the network module adopts a LORA communication module; at least two LORA communication modules are provided, one is connected to the AI ​​power dispatching system 1, and the other is connected to the intelligent power supply control system 3, and the two LORA communication modules are point-to-point networked to form a regionalized network.

[0083] In this embodiment, the LORA communication module is a low-power wide area network wireless communication module based on the existing long-range radio (Long Range Radio) technology. It is 3 to 5 times the traditional wireless radio frequency communication distance, and the effective distance can cover a range of 10km. It has low operating costs and can be easily integrated into the system based on long-range radio connection technology. The AI ​​power dispatching system 1 and the intelligent power supply control system 3 form a regionalized network through the LORA communication module, and the two LORA communication modules directly exchange data point-to-point.

[0084] Further, the intelligent power supply control system 3 enters a ready-to-work state, requiring the user to input a work completion time, or generating a work completion time based on device attributes;

[0085] After entering the preparation state and before the work is completed, a time period for performing the work is selected based on information including the output power information of the power grid 4 .

[0086] In this embodiment, the intelligent power supply control system 3 needs to collect the work completion time of the electrical equipment, and then select the time period for optimizing the power grid 4 from the time after entering the preparatory working state to the time when the work is completed, such as staggering the peak of the power grid 4, or staggering the maintenance period of the power grid 4.

[0087] Furthermore, the intelligent power supply control system 3 is provided with a work completion time memory function, which is used to automatically call up the memorized work completion time when the electrical equipment enters the ready-to-work state.

[0088] In this embodiment, the user does not need to set the work completion time every time, thereby solving the problem of users who are not sensitive to electricity prices being reluctant to handle the work.

[0089] Furthermore, the AI ​​power dispatching system 1 obtains data such as the number, type, and power consumption of power-consuming devices to be completed within a time period through numerous intelligent power supply control systems 3;

[0090] The dispatch management software module is responsible for calculating and optimizing the number, type, power consumption and other data of electrical equipment put into operation in each period;

[0091] And transmit the control information to the intelligent power supply control system 3 to realize control.

[0092] In this embodiment, the scheduling management software module requires each intelligent power supply control system to report the type of electrical equipment, power consumption, power consumption duration, and the time point at which the electrical equipment needs to complete the power consumption work. Based on the above relevant information, the scheduling management software module can execute the scheduling algorithm based on the basis and allocate the power consumption time periods of many electrical equipment.

[0093] Furthermore, the AI ​​power dispatching system 1 staggers the working hours of various power-consuming equipment in the power grid 4 in an orderly manner; staggers the peak operation of equipment that generates harmonics in the power grid 4; and coordinates power-consuming equipment that have a mutual inhibitory effect on power grid harmonics to work simultaneously.

[0094] In this embodiment, the AI ​​power dispatching system 1 staggers the working hours of various power-consuming equipment in the power grid 4 in an orderly manner, which has the beneficial effect of improving the smoothness of the power grid 4; in addition, for equipment that will generate harmonics to the power grid 4 after operation, it is more necessary to work in an orderly manner to stagger the peak hours to prevent the superposition of power grid harmonics from causing more serious pollution to the power grid 4, and the power-consuming equipment whose generated power grid harmonics have a mutually offsetting effect are arranged to work in the same time period.

[0095] Furthermore, the intelligent power supply control system 3, alone or in interaction with the AI ​​power dispatching system 1, formulates a time-limited strategy to avoid the grid maintenance time and complete the work ahead of time.

[0096] Grid 4's strategy to balance:

[0097] For example, there is a charging system for charging electric vehicles. The time when the electric vehicle is connected to the charging system is 6 pm, and the time when the electric vehicle is charged is set to 9 o'clock the next day. The existing charging system automatically charges after being plugged in, and until it is full.

[0098] However, this design can automatically avoid the peak period according to the power supply load of the power grid, and even automatically select the lowest period. Because it has the characteristic of accurately selecting the lowest period, it is beneficial to the power grid system, so it has the conditions to obtain lower prices.

[0099] Similarly, we can optimize the working time periods of electric vehicles that need to be charged, rice cookers, refrigerators, electric kettles that are scheduled at night, washing machines that are allowed to wait, and other equipment through the AI ​​power scheduling system 1.

[0100] For air conditioners, refrigerators and other power-intensive appliances, especially those that are not variable frequency, since the compressor is not always in operation and there are gaps in operation, the AI ​​power scheduling system 1 can accurately control the start-up time of each motor through the intelligent power supply control system 3.

[0101] It has positive significance especially for shopping malls, cold storage, etc.

[0102] By staggering the working hours of numerous compressors, the smoothness of power supply of the power grid is greatly improved, and it is conducive to eliminating power grid harmonics. Even by monitoring the working current waveform of each device, some useless work of the power grid can be eliminated by selecting compressors with complementary waveforms.

[0103] Preparing for grid maintenance:

[0104] When the power grid 4 needs maintenance, the AI ​​power dispatching system 1 sends information about expected power grid maintenance to the intelligent power supply control system 3 .

[0105] Since the intelligent power supply control system 3 has independent control characteristics, it has extremely high accuracy. Even if it is not a large-scale power grid maintenance, but only a small area power grid maintenance, such as community power grid maintenance or industrial area power grid maintenance, targeted response can be carried out in the small area.

[0106] For example, when the intelligent power supply control system 3 is connected to the refrigerator, it can cool down the freezing area before the expected grid maintenance time, and enter the motor sleep state in advance to avoid the reverse current generated by the inductance effect of the motor from damaging the refrigerator itself or even impacting the grid 4.

[0107] For example, when the intelligent power supply control system 3 is connected to the aquarium oxygen supply system, a strong oxygen supply can be performed on the aquarium oxygen supply system before the estimated grid maintenance time.

[0108] For example, when the intelligent power supply control system 3 is connected to a charging device, the charging device can be fast charged before the estimated grid maintenance time.

[0109] For example, when the intelligent power supply control system 3 is connected to the air conditioner, the power of the air conditioner can be increased before the estimated grid maintenance time. For example, in the heating state, the heating temperature is increased; in the cooling state, the cooling temperature is reduced. And the motor enters the dormant state in advance to avoid the reverse current generated by the inductance effect of the motor from damaging the air conditioner or even impacting the grid 4.

[0110] A mobile phone software system is provided, and the mobile phone software system is allowed to control the intelligent power supply control system 3, and the control level of the mobile phone software system is allowed to be higher than the automatic control level of the AI ​​power dispatching system 1 and the intelligent power supply control system 3. This allows users to take over the control of power equipment at any time.

[0111] Reference Figure 3 As shown, the intelligent power supply control system 3 also includes an active filter system;

[0112] The active filter system includes a CT current acquisition device and a compensation current management module;

[0113] The CT current acquisition device is a device that collects grid current changes through a current mutual induction circuit, is arranged at one end of the grid 4, and has an induction signal output interface that outputs induction waveform data;

[0114] The compensation current management module is a compensation current generating device that uses an IGMT inverter bridge to generate the required compensation current waveform and superimposes it back to the power grid 4. The compensation current management module has a compensation output terminal and a control input terminal driven by pulse width modulation.

[0115] The data acquisition terminal of the intelligent power supply control system 3 is connected to the induction signal output interface of the CT current acquisition device, and compensation calculation is performed according to the induction waveform to obtain compensation waveform data;

[0116] The intelligent power supply control system 3 is connected to the control input terminal of the compensation current management module, controls the compensation current management module to generate a compensation waveform and outputs it to the power grid 4 in a superimposed manner.

[0117] In this embodiment, the intelligent control system collects the harmonic waveform in the power grid 4 through the CT current acquisition device, and after the harmonic analysis and calculation of the real-time compensation current, drives the compensation current management module through the high-frequency pulse width modulation (PWM) technology, thereby generating the required compensation current waveform, compensating and superimposing the power grid 4, so as to achieve the purpose of filtering out harmonics and obtaining the ideal load input current.

[0118] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described, ie, those features that are not relevant to the best mode of the invention or those features that are not relevant to implementing the invention.

[0119] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0120] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Regionalized smart grid, characterized by: It includes a microprocessor system for dispatching the power consumption of power-consuming equipment, called an AI power dispatching system, a power grid information collection system, and at least one intelligent power supply control system; The AI ​​power dispatching system is installed in the substation as the dispatching and control center of the regional power grid; The power grid information collection system is used to obtain power grid power supply information, including at least one type of information including: power grid output, power generation of power plants, and power grid maintenance information; The AI ​​power dispatching system connects to the power grid information collection system to obtain power grid power supply information; Intelligent power supply control system is a control system used to control the operation of electrical equipment; It also includes a network module, through which the AI ​​power dispatching system is remotely connected to the intelligent power supply control system; The AI ​​power dispatching system runs a dispatching management software module. After obtaining the power supply information of the power grid through the power grid information collection system, the dispatching management software module dispatches a large number of intelligent power supply control systems through remote networking according to the power supply information of the power grid, and sends the power supply information and power operation time period to the intelligent power supply control system, thereby realizing the AI ​​power dispatching system to control the power consumption of a large number of power-consuming equipment, optimize the power supply of the power grid, and make the output power of the power grid and the power generation of the power supply plant tend to be balanced; or before the power grid maintenance, use electrical equipment to complete the necessary work in advance; The intelligent power supply control system runs a power supply time management software module, which selects the power supply time period for the power equipment based on the power supply information of the power grid, the allocated power operation time period, the type of power equipment, the working time of the power equipment, and the time limit for the power equipment to complete the work.

2. The regionalized smart grid according to claim 1, characterized in that: The network module adopts LORA communication module; At least two LORA communication modules are set up, one connected to the AI ​​power dispatching system, and the other connected to the intelligent power supply control system. The two LORA communication modules are point-to-point networked to form a regional network.

3. The regionalized smart grid according to claim 1, characterized in that: The intelligent power supply control system enters the preparation state, requiring the user to input the work completion time, or generating the work completion time based on the device attributes; After entering the preparation state and before the work is completed, a time period for working is selected based on information including the output power information of the power grid.

4. The regionalized smart grid according to claim 1, characterized in that: The intelligent power supply control system is set with a work completion time memory function, which is used to automatically call the memorized work completion time when the electrical equipment enters the ready-to-work state.

5. The regionalized smart grid according to claim 1, characterized in that: The AI ​​power dispatching system obtains data such as the number, type, and power consumption of power-consuming equipment to be completed within a period of time through numerous intelligent power supply control systems; The dispatch management software module is responsible for calculating and optimizing the number, type, power consumption and other data of electrical equipment put into operation in each period; And transmit the control information to the intelligent power supply control system to realize control.

6. The regionalized smart grid according to claim 1, characterized in that: The AI ​​power dispatching system staggers the working hours of various power-consuming devices in the power grid in an orderly manner; Equipment that generates harmonics in the power grid should work at off-peak times; Electrical equipment that have a mutual inhibitory effect on grid harmonics are coordinated to work simultaneously.

7. The regionalized smart grid according to any one of claims 1 to 6, characterized in that: The intelligent power supply control system can work alone or in interaction with the AI ​​power dispatching system to formulate time-limited strategies to avoid grid maintenance time and complete the work ahead of time.

8. The regionalized smart grid according to claim 1, characterized in that: The intelligent power supply control system also includes an active filter system; The active filter system includes a CT current acquisition device and a compensation current management module; The CT current acquisition device is a device that collects grid current changes through a current mutual induction circuit, is set at one end of the grid, and has an induction signal output interface for outputting induction waveform data; The compensation current management module is a compensation current generating device that uses an IGMT inverter bridge to generate the required compensation current waveform and superimposes it back to the power grid. The compensation current management module has a compensation output terminal and a control input terminal driven by pulse width modulation. The data acquisition end of the intelligent power supply control system is connected to the induction signal output interface of the CT current acquisition device, and compensation calculation is performed according to the induction waveform to obtain compensation waveform data; The intelligent power supply control system is connected to the control input end of the compensation current management module, controls the compensation current management module to generate a compensation waveform and outputs it to the power grid in a superimposed manner.

Images