Multipath load control acquisition device, system and load control acquisition method

Abstract

The invention discloses a multipath load control acquisition device and system and a load control acquisition method, the device adopts an architecture in which a master device and a slave device cooperate, the master device comprises a master controller, a master communication module, a user display interface and a master interface unit, and the slave device comprises a slave interface unit, a slave controller, an acquisition unit and a slave communication module. Flexible marshalling management is achieved by distributing electronic identity numbers to the breakers, load parameters and the states of the breakers are synchronously collected through the collection unit, a two-way data transmission channel is constructed by means of the master-slave communication module, a control signal is generated based on preset logic and real-time data through the master controller, and the state of the breakers is controlled. And the slave controller issues an instruction to drive the circuit breaker electric operation mechanism to realize millisecond-level rapid switching-on and switching-off operation. According to the invention, the problems of insufficient number of loops, lack of state monitoring, slow response and the like of an existing load control system are solved, and accurate, rapid and intelligent management of multi-path loads on a client side is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power system control, in particular to a multi-path load control collection device, system and load control collection method. BACKGROUND

[0002] With the sustained and rapid development of the national economy, the power grid load is rising, especially during the summer peak period, the local area often appears load shortage, which brings a severe test to the safe and stable operation of the power grid. Under this background, through the implementation of orderly rotation power cut for large industrial customers, it has become one of the effective means to quickly balance the load and ensure the stability of the power grid. The load control terminal (referred to as "negative control terminal") as the key equipment to realize this strategy, its performance and function directly affect the effect of load management.

[0003] However, the existing negative control terminal based on 230MHz wireless private network still has many limitations in practical application: Firstly, the system has the inherent defect of "control and collection separation". The existing load switch at the customer side does not have load monitoring function, which leads to the fact that users such as special line customers who lack branch metering points cannot realize classification control according to load nature. If the load needs to be monitored, an electric energy meter must be additionally installed, which greatly increases the construction complexity and cost, and the on-site implementation difficulty is huge.

[0004] Secondly, the system has obvious short board in expansion and response speed. On the one hand, the number of controllable loops of the negative control terminal itself is limited, which is difficult to cover the numerous low-voltage loops that may exist at the customer side; on the other hand, the number of physical intervals (units) of the on-site load switch itself is insufficient, which limits the controllable loop size, and the mechanical type tripping device of the load switch itself moves slowly, which cannot meet the fast control demand below 200 milliseconds.

[0005] The above limitations in data perception, system size and execution speed jointly lead to the rigidity of the system architecture, which makes it impossible to flexibly and accurately coordinate the control of multiple paths according to the actual load condition, thereby restricting the potential of the power system in optimizing operation and energy saving.

[0006] In summary, the existing system has deficiencies in structure, function and response ability, and cannot really realize the "observation, measurement, adjustment and control" of all branch loads at the customer side. SUMMARY

[0007] In view of the above deficiencies in the prior art, the purpose of the present application is to provide a multi-path load control collection device, system and load control collection method, which solves the problems that the existing power load control system cannot monitor the multi-path load at the customer side in real time, the number of controllable loops of the negative control terminal itself is insufficient, and the control response speed is slow.

[0008] To solve the above technical problems, the technical scheme adopted by the present application is as follows: A multi-path load control collection device, comprising a master device and at least one slave device in communication connection with the master device; The master device comprises: A master controller for parsing local operation instructions from a user display interface or remote control instructions from a master communication module, and generating control signals based on preset control logic and real-time power parameters; A master communication module connected with the master controller for realizing data interaction between the master device and a remote monitoring system and the slave device; A user display interface connected with the master controller for displaying system status and power parameters in a graphical manner and receiving user input operation instructions; A first power supply module for powering the master controller, master communication module and user display interface; A master interface unit connected with the master controller for connecting an external control terminal; The slave device comprises: A slave controller connected with a circuit breaker electric operating mechanism through a slave interface unit for driving the circuit breaker electric operating mechanism to perform circuit breaker tripping or closing actions according to received control signals; A collection unit connected with the slave controller and connected with a circuit breaker through a slave interface unit for collecting current, voltage and power parameters of the power loop and collecting status signals of the circuit breaker; A slave communication module connected with the slave controller for receiving control signals from the master device and sending power parameters and status signals collected by the collection unit to the master device; A slave interface unit connected with the slave controller and the collection unit and used for connecting an external circuit; A second power supply module for powering the slave controller, collection unit and slave communication module; The master controller groups circuit breakers connected to multiple slave devices through the master communication module and slave communication module to realize demand-side load management.

[0009] Further, the master communication module and slave communication module support multiple communication protocols, including at least one of LoRa, 4G / 5G, Bluetooth, Wi-Fi and RS-485 wired communication, and can adaptively select a communication mode according to communication environment conditions.

[0010] Further, a control strategy module is arranged in the main controller, which is based on a deep reinforcement learning algorithm, predicts load changes according to historical and real-time power data, and dynamically generates or adjusts the control strategy of the demand side load management.

[0011] Further, the grouping of the circuit breakers refers to assigning each circuit breaker a unique electronic identity number, and the main controller performs grouping registration, deregistration or round management based on the electronic identity number.

[0012] Further, the main device further comprises a high-speed data processing unit adopting a multi-core processor architecture for parallel processing of power parameters uploaded by multiple slave devices and outputting analysis results to the main controller.

[0013] Further, the inner surface of the shell of the main device and the slave device is covered with a high-permeability metal layer, and the internal circuit is provided with multi-stage LC filtering and active filtering circuit to improve the anti-interference ability.

[0014] Further, the circuit breaker electric operating mechanism is an electromagnetic drive circuit breaker electric operating mechanism configured to complete the tripping or closing action of the circuit breaker within a few milliseconds after receiving the control signal.

[0015] A multi-channel load control collection system, comprising: a central monitoring system; a plurality of multi-channel load control collection devices as described above; Wherein, a distributed collaborative network is constructed between each of the devices for sharing load data and control instructions to realize collaborative management of regional power grids.

[0016] A demand side load control collection method based on the above device, comprising the following steps: (1) receiving control instructions, the control instructions coming from a local user interface or a remote monitoring system; (2) analyzing the control instructions and generating control signals for the grouped circuit breakers based on the preset control logic and real-time collected power parameters; (3) issuing the control signals to the target slave device through the master communication module and the slave communication module; (4) driving the circuit breaker electric operating mechanism through the slave controller of the slave device to perform tripping or closing operation on the corresponding circuit breaker; (5) collecting the power parameters and circuit breaker state signals after operation through the collection unit of the slave device; (6) feeding back the power parameters and state signals to the main device and the remote monitoring system to form a closed-loop control.

[0017] Further, in the process of issuing the control signal and / or the parameter and state signal feedback data transmission, an adaptive transmission protocol is executed by the master communication module and / or the slave communication module to dynamically adjust the data packet size and transmission frequency of the data transmission.

[0018] Compared with the prior art, the present application has the following beneficial effects: 1. The present application provides a multi-path load control acquisition device, which effectively expands the number of controllable loops by adopting a cooperative architecture of a master device and multiple slave devices, realizing the leap from limited single-point control to flexible and expandable multi-path comprehensive control. On this basis, the present application innovatively introduces a grouping management mechanism based on electronic identity numbers, enabling the system to flexibly group and configure the connected circuit breakers and manage their permissions, laying the foundation for precise demand-side load control. By integrating a high-precision acquisition unit in the slave device, the system realizes the synchronous acquisition and real-time feedback of the current, voltage, power and circuit breaker state signal of each path of load, thereby comprehensively improving the transparency and observability of the load state and providing data support for the strategy adjustment of the master controller. Further, with the help of the deep reinforcement learning algorithm embedded in the high-performance master controller, the system can complete load prediction and intelligent decision-making within milliseconds, and combined with the electromagnetic drive circuit breaker electric operating mechanism, it can complete precise on-off operation within a few milliseconds, significantly improving the timeliness and reliability of control. In summary, the present application realizes real-time monitoring, flexible grouping and rapid control of customer-side multi-path load through integrated, intelligent and modular overall design, and comprehensively improves the refinement, intelligence level and system operation reliability of power load management.

[0019] 2. The present application also provides a multi-path load control acquisition system composed of multiple aforementioned devices and a central monitoring system, realizing the leap from single-point control to regional coordination. Through the constructed distributed collaborative network, the devices in the system break down the information silos and realize real-time sharing and intelligent analysis of load data and control instructions within the regional scope. When load fluctuation or overload risk occurs in a local region, the system can automatically coordinate the control resources of different nodes to make global optimization decisions and load distribution, thereby improving the stability and reliability of power grid operation from the system level and realizing the coordinated optimization and intelligent management of regional power grids, providing strong platform support for the optimal allocation of power resources.

[0020] 3、The demand side load control collection method provided by the application forms a complete "perception-decision-execution-feedback" closed loop control process. The method starts from receiving and analyzing multi-source instructions, integrates an intelligent decision mechanism based on artificial intelligence, and penetrates the precise execution and data return link from the master device to the slave device. By including the circuit breaker state signal and the power parameter in the feedback link, and applying an adaptive data transmission strategy in the process, the method ensures the real-time and accuracy of the control decision, can dynamically adjust the control strategy according to the actual operation state of the power grid, and finally realizes the continuous optimization and accurate management of the power load, providing a reliable methodological guarantee for the safe, efficient and economic operation of the power system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the module connection relationship of the multi-channel load control collection device of the application. Figure 2 It is a schematic diagram of the connection relationship of the multi-channel load control collection device of the application, circuit breaker and circuit breaker electric operating mechanism. Figure 3 It is a schematic diagram of the interface unit connection relationship of the master device and the 230MHz terminal of the application. Figure 4 It is a schematic diagram of the module connection relationship of the multi-channel load control collection system of the application. DETAILED DESCRIPTION

[0022] The embodiments of the application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will understand that the description herein is exemplary, not limiting the scope of protection of the application.

[0023] Example 1 The embodiment provides a multi-channel load control collection device, which aims to expand and enhance the function of the existing 230MHz load control terminal. The device, as an independent functional expansion unit, is connected with the existing 230MHz terminal interface board through a dedicated interface board and a wire, so as to receive the standard control instructions from the power grid master station and forwarded by the 230MHz terminal.

[0024] The multi-channel load control collection device, as shown in Figure 1 includes a master device and at least one slave device in communication connection with the master device. The master device comprises: A main controller is configured to analyze local operation instructions from a user display interface or remote control instructions from a main communication module, and generate control signals based on preset control logic and real-time power parameters; the main controller adopts an ARM Cortex-M3 core, which adopts a Harvard structure and a three-stage pipeline, has high instruction execution efficiency, has a maximum working frequency of 72 MHz, and is internally provided with a hardware multiplier and a divider, supports single-cycle multiplication and division operations, and can efficiently complete mathematical calculation tasks such as signal processing and algorithm operation. The main controller also has multiple low-power modes such as sleep, stop and standby, and can intelligently switch according to system load. For example, the stop mode is enabled during intermittent attendance, the core is paused to reduce power consumption, while the static random access memory (SRAM) and the register state are maintained to ensure that the core can quickly wake up and recover when receiving external instructions, achieving a balance between low power consumption and fast response.

[0025] A main communication module is connected to the main controller through an internal high-speed bus, and is configured to realize data interaction between the main device and a remote monitoring system and the slave device. A user display interface is connected to the main controller through an internal high-speed bus, and is configured to display system status and power parameters in a graphical manner, and receive user input operation instructions. A first power supply module is configured to supply power to the main controller, the main communication module and the user display interface. A main interface unit is connected to the main controller, and is configured to connect an external control terminal. The slave device comprises: A slave controller is connected to a circuit breaker electric operating mechanism through a slave interface unit, and is configured to drive the circuit breaker electric operating mechanism to perform circuit breaker tripping or closing actions according to the received control signals. Figure 2 .

[0026] An acquisition unit is connected to the slave controller, and is configured to acquire current, voltage and power parameters of a power circuit and state signals of the circuit breaker; the acquisition unit can realize synchronous sensing of power parameters and switch states.

[0027] A slave communication module is connected to the slave controller through an internal high-speed bus, and is configured to receive control signals from the main device, and send power parameters and state signals acquired by the acquisition unit to the main device. A slave interface unit is connected to the slave controller and the acquisition unit, and is configured to connect an external circuit. A second power supply module is configured to supply power to the slave controller, the acquisition unit and the slave communication module. The main controller groups circuit breakers connected to multiple slave devices through the main communication module and the slave communication module, to realize demand-side load management.

[0028] In specific implementation, the master communication module and the slave communication module are selected from industrial-grade multi-mode communication chips, equipped with multiple communication interfaces, and can support 4G / 5G, LoRa, RS-485, Bluetooth, Wi-Fi and other communication protocols and modes. The optimal communication mode can be selected according to the on-site network environment to ensure stable and efficient data transmission with slave devices and other external devices. The LoRa technology has the characteristics of long distance, low power consumption and strong anti-interference, and the communication distance can reach several kilometers in an open environment. The 4G and 5G technologies are suitable for scenarios with extremely high power consumption requirements and a large number of connections, and have deep coverage capabilities. The RS-485 interface supports multi-node connection, and the transmission rate can reach 115200bps at most. While ensuring the data transmission rate, the error rate in the signal transmission process can also be effectively reduced to ensure accurate transmission of remote control commands and data.

[0029] In specific implementation, the master communication module further embeds a self-adaptive transmission protocol module, which can adaptively select a communication mode according to the communication environment. Specifically, by monitoring the network congestion in real time, using a network congestion detection algorithm, analyzing key indicators such as data packet transmission delay and retransmission times, and adjusting the size of the data packet and the transmission frequency in real time. When the network is congested, the module will automatically adjust the data packet size, split large files into smaller data packets for transmission, and reduce the transmission frequency to prevent the network congestion from further intensifying; when the network is smooth, the data packet size is increased and the transmission frequency is increased to fully tap the potential of the network bandwidth.

[0030] In specific implementation, the master controller is configured to predict load changes based on historical and real-time power data and dynamically generate or adjust the control strategy of the demand-side load management based on a deep reinforcement learning algorithm. In a preferred embodiment, this function is carried out by a control strategy module in the master controller. This module uses an algorithm based on deep reinforcement learning to build a power load prediction model and a regulation strategy optimization model. The model is trained by a large amount of historical power data and real-time acquisition data, and continuously learns the optimal regulation strategy under different load scenarios. When it is monitored that the power load in a certain area is about to overload, the model immediately triggers a power cut warning, analyzes the load priority and power consumption characteristics of different lines in the area, and pushes reasonable power consumption suggestions, such as preferentially cutting off the power supply of non-critical equipment and adjusting the power consumption period of some equipment. At the same time, according to the real-time feedback of the load change, the regulation strategy is continuously adjusted and optimized to ensure that the power system is always in a stable and efficient operating state.

[0031] In a specific implementation, the grouping of the circuit breakers refers to assigning each circuit breaker a unique electronic identity number, and the main controller performs grouping registration, deregistration, or round management based on the electronic identity number. The implementation of grouping management is as follows: when the system is first deployed, the technician enters the grouping configuration mode through the user display interface of the main device. The system automatically scans and lists all online slave devices and their associated circuit breakers, each identified by its unique electronic identity number (such as MAC address or factory ID). The operator then drags the circuit breakers numbered "DT001", "DT002", "DT003" (corresponding to the three air conditioner outdoor units of the customer) to the "non-critical load-A group" in the graphical list on the interface, completing the grouping registration. Similarly, the circuit breaker numbered "DT004" (corresponding to the fire pump) can be registered in the "protective load group" and set as uncontrollable. When load control is needed, the central monitoring system or local user only needs to issue the command "trip non-critical load-A group", and the main controller can accurately locate and control all circuit breakers in the group.

[0032] In a specific implementation, the main device further includes a high-speed data processing unit connected to the main controller through an internal high-speed bus. The high-speed data processing unit adopts a multi-core processor architecture and is specifically used for parallel processing of real-time power data uploaded by multiple slave devices, performing preliminary filtering, analysis, and feature extraction (such as calculating the load change rate), and submitting the results to the main controller, greatly reducing the data processing burden of the main controller.

[0033] In a specific implementation, the main device and the slave device are both arranged in an independent engineering plastic shell, which has good anti-collision, dustproof, and waterproof performance, can effectively protect the internal components and prolong the service life. The device adopts a highly integrated design, with the main control chip, communication module, and display unit and other key components compactly arranged in the shell, which not only shortens the internal signal transmission path, reduces external interference, but also significantly improves the system stability and reliability. This design simplifies the overall structure, supports wall hanging, embedding, or rack mounting, and can be flexibly deployed according to different scenes such as industrial plants and commercial complexes, greatly reducing the installation complexity and time cost. In addition, the modular structure also facilitates quick positioning and replacement of faulty components during daily maintenance, thereby reducing downtime and improving system availability. The inner surface of the shell is covered with a high-permeability metal shielding layer, and the internal circuit is provided with multiple LC filters and active filter circuits, which can effectively suppress complex electromagnetic interference on site and ensure stable operation of the core control unit. The LC filter can effectively filter out interference signals of a specific frequency, and the active filter circuit can detect and cancel dynamic interference in real time, ensuring the stability of the acquisition and control signals.

[0034] In specific implementation, the electric operating mechanism of the circuit breaker is an electromagnetic drive circuit breaker electric operating mechanism, which is configured to complete the tripping or closing action of the circuit breaker within several milliseconds after receiving the control signal. The electromagnetic drive mechanism has high response characteristics and can ensure the rapidity of control.

[0035] In specific implementation, the user display interface adopts a high-resolution liquid crystal touch screen to display the total power of the system, the current and voltage of each loop, the grouping state of the circuit breaker, the communication link state and the operation record in a graphical manner in real time. The operating personnel can directly perform local control operation such as parameter setting, historical data viewing and display page switching through the touch screen or through the key operation. This facilitates the user to quickly understand the system state, reduces the operation difficulty, improves the user experience and operation efficiency.

[0036] The hardware connection of the device is based on the modular concept, and the master and slave devices are connected through a high-speed bus inside, and physical and protocol interfaces are reserved to ensure low-delay transmission and future system scalability.

[0037] In specific implementation, the master device is directly connected to 220V AC mains, and the internal master controller, master communication module and other electronic circuits need to be powered by DC low voltage; therefore, the first power module adopts an AC / DC power module to convert 220V AC power into stable DC power required by the device. For safety reasons, the slave device is directly connected to 24V DC input, and the working voltages of the slave controller, acquisition unit and other circuits inside are different, so the second power module adopts a DC / DC power module to further convert and stabilize the specific DC voltage required by each unit from the 24V DC input.

[0038] In specific implementation, the external control terminal is a 230MHz terminal, and the master interface unit of the master device and the 230MHz terminal interface unit are connected to the corresponding interfaces through a wired connection mode, as shown in Figure 3 This connection is the key to integrating the device into the existing negative control system, which enables the master device to receive standard instructions (such as one to four rounds of remote control, or more rounds of remote control) from the power grid master station and transmitted by the 230MHz terminal, and upload the rich state information collected by the device back to the master station.

[0039] The specific interface correspondence and functions are as follows: Power interface: the master device and the 230MHz terminal are connected to 220V power supply, respectively, to provide working power for the master device and the terminal, and to ensure their stable operation.

[0040] Remote control interface: This is the instruction input channel of the device. The main device receives the remote on-off command forwarded by the 230MHz terminal through this interface. These traditional round commands will be parsed by the main controller and converted into precise control signals for the internal grouping of multiple slave devices and their circuit breakers.

[0041] Remote signaling interface: This is the status upload channel of the device. The main device simulates the on-off state signals (such as "off" and "on") of the associated circuit breakers from each slave device as standard remote signaling signals and uploads them to the 230MHz terminal, which in turn transmits them to the main station, achieving centralized monitoring of multiple circuit breaker states.

[0042] Pulse interface: Collects the power-related pulse signals sent by the main device, which is the basic data source for load monitoring and electricity fee calculation.

[0043] RS-485 interface: Obtains detailed electrical parameters such as voltage, current, power, and power consumption uploaded by the main device through the RS485 bus, providing core data basis for precise load control and strategy optimization of the system.

[0044] Through the above device connection, the device effectively expands the functions of the traditional 230MHz terminal, converting its limited round control commands into powerful capabilities for flexible grouping and intelligent control of multiple loads, achieving a technical leap from "single-point round control" to "multi-point group control".

[0045] Example 2: As shown in Figure 4 , the present embodiment provides a multi-load control collection system composed of a central monitoring system and multiple devices (site 1, site 2, …, site N) described in Example 1 distributed in a certain regional power grid (such as an industrial park). Users can remotely monitor the operating status of power equipment in multiple dispersed sites in real time through the management platform of the central monitoring system and view detailed power parameter information. Management personnel can remotely issue control commands such as remotely turning on and off equipment from a remote location, achieving centralized management. This remote monitoring and management mode not only saves labor costs but also quickly responds to power system failures, timely handles abnormal situations, avoids the expansion of faults, and improves the convenience and efficiency of power system management.

[0046] The master devices of each site build a distributed collaborative network through their 4G communication modules. Based on an agreed communication protocol, the network shares real-time total load, key loop state and other information of each site. When the central monitoring system predicts that the regional power grid will soon be overloaded, it no longer directly issues a fixed load reduction target to each site, but broadcasts a collaborative control request for reducing load by 500 kW. After receiving the request, the master controller of each site, based on the local load prediction model trained by deep reinforcement learning algorithm, comprehensively considers the load priority, power consumption characteristics and user comfort of the site, and autonomously generates the optimal load reduction strategy (such as reducing 200 kW at site 1, 150 kW at site 2, and 150 kW at site 3), which is coordinated and confirmed through the collaborative network and then executed. This distributed collaborative control mode realizes the global optimization of regional load control, avoids the drawbacks of "one-size-fits-all" load reduction, and significantly improves the intelligent level and operating efficiency of the power grid.

[0047] Embodiment 3 This embodiment provides a demand side load control collection method, which details the method flow of implementing demand side load control based on the device of embodiment 1. Through the cooperation of the master device and the slave device, a complete "perception-decision-execution-feedback" closed loop is formed, as follows: S101: System access and instruction receiving. The master device interface unit establishes a stable wired connection with the field 230MHz terminal interface unit through a dedicated shielded cable to reduce electromagnetic interference and ensure the reliability of the physical link. After successful access, the master controller of the master device starts to listen to instructions in real time. These instructions may come from local operations triggered by users through the local display interface, or from remote control instructions issued by the central monitoring system through the master communication module, including load control, parameter query or system configuration, etc.

[0048] S102: Intelligent decision and signal generation. After receiving the instructions, the master controller immediately parses them. If it is a load control instruction, it calls the load prediction and strategy optimization model based on the deep reinforcement learning algorithm. The model combines historical power consumption patterns and real-time power system operating state data (such as loop load, voltage, current) uploaded by slave devices after the master controller issues instructions to predict future short-term load trends. Subsequently, the master controller generates control signals for specific groups (such as "commercial air conditioning group") based on the prediction results and pre-set control logic (such as "preserve life, limit business" priority). The control signal is subjected to multiple checks and encryption during generation and contains the electronic identity number of the target slave device and specific operation commands (such as breaking), to ensure the accuracy, security and addressability of the signal.

[0049] S103: Adaptive signal transmission. The main communication module is responsible for sending control signals to the target slave device. The communication module supports multiple communication methods and automatically selects the optimal communication mode based on the signal strength and interference in the field. For example, LoRa wireless transmission is preferred, and the embedded adaptive transmission protocol is started; when signal loss or error is detected, automatic switching to Bluetooth or RS-485 wired mode for retransmission is performed, and the link state is constantly monitored to ensure that the control signal is reliably and accurately delivered.

[0050] S104: Slave device executes and state feedback. After the slave communication module of the target slave device receives and verifies the control signal, it quickly responds from the controller, transmits signals to drive the electromagnetic drive circuit breaker electric operation mechanism to work, and the electromagnetic drive circuit breaker electric operation mechanism can complete the corresponding molded case circuit breaker trip or close operation within a few milliseconds (such as 10 milliseconds), ensuring fast and accurate control of the power circuit. At the same time, the acquisition unit in the slave device monitors the multi-channel remote signaling signals (i.e. auxiliary contact open and close signals) of the molded case circuit breaker in real time, directly judges and records the actual trip and close state of the circuit breaker. When demand side management is performed on the grouping turn, the slave device executes control or control release operation on the molded case circuit breaker of the corresponding grouping according to the received control instruction. For example, after receiving a power limiting instruction during the peak power consumption period, the slave device sequentially cuts off the molded case circuit breaker of the circuit where the non-critical load is located according to the preset grouping order; when the power consumption is in the valley or the power supply is restored to normal, the control on part of the load is released according to the instruction to restore power supply. The slave controller will feedback the operation result to the master device in real time after completing the operation.

[0051] S105: Data transmission and verification feedback. The communication module of the slave device is responsible for transmitting the power system data (including current, voltage, power, and energy parameters) uploaded by the acquisition unit to the slave controller to the main controller of the master device. During data transmission, efficient data compression algorithms are used to process data, effectively reducing data transmission volume and improving transmission efficiency. At the same time, to ensure the accuracy and integrity of the data, a check code is added to the data. After the master device receives the data, it performs a check. If it finds data errors, it immediately requests the slave device to retransmit. In addition, the slave device will feedback the operation result (including the trip and close state of the circuit breaker, device running state change, etc.) to the master device after executing the control operation, providing data basis for subsequent control strategy adjustment.

[0052] S106: Closed-loop evaluation and strategy optimization. After receiving the power data and state feedback information transmitted by the slave device, the master controller of the master device conducts in-depth analysis on these data. By comparing the real-time data with the preset power system operation indicators and control targets, it is determined whether the current operation state of the power system is normal. If abnormal conditions (such as load overload, voltage abnormal fluctuation, etc.) are found in the power system or the expected control effect is not achieved, the master controller adjusts the control strategy dynamically according to the data analysis results by using intelligent algorithms. For example, when the load in a certain area is continuously high, the master controller will adjust the subsequent power limiting strategy, appropriately expand the power limiting range or extend the power limiting time, to ensure the stable operation of the power system. Through continuous data reception, analysis and strategy optimization, a complete closed-loop control is formed to achieve fine control of the power system and ensure that it is always in a safe and efficient operating state.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the technical solutions. Those of ordinary skill in the art should understand that modifications or equivalent replacements to the technical solutions of the present application without departing from the spirit and scope of the technical solutions should be covered in the scope of the claims of the present application.

Claims

1. A multipath load control collection device, comprising: The main device and at least one slave device connected in communication with the main device; The main device comprises: A main controller for parsing local operation instructions from a user display interface or remote control instructions from a main communication module, and generating control signals based on preset control logic and real-time power parameters; A main communication module connected with the main controller for realizing data interaction between the main device and a remote monitoring system and the slave device; A user display interface connected with the main controller for displaying system status and power parameters in a graphical manner and receiving user input operation instructions; A first power module for powering the main controller, main communication module and user display interface; A main interface unit connected with the main controller for connecting an external control terminal; The slave device comprises: A slave controller connected with a circuit breaker electric operating mechanism for driving the circuit breaker electric operating mechanism to perform circuit breaker tripping or closing actions according to received control signals; An acquisition unit connected with the slave controller for acquiring current, voltage and power parameters of a power loop and state signals of the circuit breaker; A slave communication module connected with the slave controller for receiving control signals from the main device and sending power parameters and state signals acquired by the acquisition unit to the main device; A slave interface unit connected with the slave controller and the acquisition unit and for connecting an external circuit; A second power module for powering the slave controller, acquisition unit and slave communication module; The main controller groups circuit breakers connected to multiple slave devices through the main communication module and the slave communication module to realize demand side load management.

2. The multiplexed load control collection device of claim 1, wherein, The main communication module and the slave communication module support multiple communication protocols, including at least one of LoRa, 4G / 5G, Bluetooth, Wi-Fi and RS-485 wired communication, and can adaptively select a communication mode according to a communication environment.

3. The multiplexed load control collection device of claim 1, wherein, The main controller is provided with a control strategy module based on a deep reinforcement learning algorithm, which predicts load changes according to historical and real-time power data and dynamically generates or adjusts control strategies for demand side load management.

4. The multiplexed load control collection device of claim 1, wherein, The grouping of circuit breakers refers to assigning each circuit breaker a unique electronic identity number, and the main controller groups, registers, deregisters or manages rounds based on the electronic identity number.

5. The multiplexed load control collection device of claim 1, wherein, The main device further comprises a high-speed data processing unit adopting a multi-core processor architecture for parallel processing of power parameters uploaded by multiple slave devices and outputting analysis results to the main controller.

6. The multiplexed load control collection device of claim 1, wherein, The inner surfaces of the housings of the main device and the slave device are covered with a high magnetic permeability metal layer, and the internal circuits are provided with multi-stage LC filtering and active filtering circuits to improve anti-interference ability.

7. The multiplexed load control collection device of claim 1, wherein, The circuit breaker electric operating mechanism is an electromagnetic drive circuit breaker electric operating mechanism configured to complete circuit breaker tripping or closing actions within a few milliseconds after receiving control signals.

8. A multiplexed load control collection system, comprising: It comprises: A central monitoring system; Multiple multi-channel load control acquisition devices as claimed in any one of claims 1 to 7; Among them, a distributed cooperative network is constructed between each of the devices for sharing load data and control instructions to achieve cooperative management and control of the regional power grid.

9. A demand side load control collection method based on the apparatus of any one of claims 1 to 7, characterized by, The method comprises the following steps: (1) receiving control instructions from a local user interface or a remote monitoring system; (2) analyzing the control instructions and generating control signals for the circuit breakers based on the preset control logic and the real-time collected power parameters; (3) issuing the control signals to the target slave device through the master communication module and the slave communication module; (4) driving the circuit breaker electric operating mechanism through the slave controller of the slave device to perform opening or closing operation on the corresponding circuit breaker; (5) collecting the power parameters and circuit breaker status signals after operation through the acquisition unit of the slave device; (6) feeding back the power parameters and status signals to the master device and the remote monitoring system to form a closed-loop control.

10. The demand side load control harvesting method of claim 9, wherein, During the data transmission process of issuing the control signals and / or feeding back the parameter and status signals, the adaptive transmission protocol is executed through the master communication module and / or the slave communication module to dynamically adjust the data packet size and transmission frequency of data transmission.

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