New energy stable coordination controller

Abstract

The utility model discloses a new energy stable coordination controller, comprising a signal acquisition module used for acquiring real-time state data of new energy power generation and real-time state data of a power distribution network system; and the data processing module is used for receiving, processing and analyzing the data acquired by the signal acquisition module, then sending the processed and analyzed data to a scheduling system, receiving a scheduling instruction matched by the scheduling system according to the processed and analyzed data, and then decomposing the scheduling instruction and issuing the decomposed scheduling instruction to a local controller for execution. According to the scheme, through full-process technical innovation of high-speed acquisition, intelligent verification, safe communication and closed-loop control, defects in new energy access management and control in the prior art are systematically solved, and observability, measurability, controllability and adjustability of a distributed power supply and a power distribution network are realized; and a key technical support is provided for safe, stable and economical operation of the power grid in a high-permeability new energy grid-connected scene.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, and in particular to a new energy stability and coordination controller. Background Technology

[0002] With the advancement of the "dual carbon" target, distributed photovoltaic, wind power, and other new energy power generation systems have been connected to the distribution network on a large scale, changing the traditional one-way power supply mode of the distribution network. The intermittency, volatility, and high penetration rate of new energy power generation have led to complex problems in the distribution network, such as node voltage deviation, harmonic pollution, three-phase imbalance, and relay protection coordination failure, posing a severe challenge to the safe and stable operation and economic dispatch of the power grid.

[0003] Existing technologies for managing new energy access have the following shortcomings: they cannot accurately capture transient changes in new energy power generation systems (such as surge current and voltage flicker), and lack the ability to synchronously collect multi-dimensional data such as three-phase voltage, current, and harmonics, resulting in lagging grid status assessment and difficulty in meeting real-time control requirements; existing systems generally lack real-time verification mechanisms for new energy access constraints, cannot dynamically calculate active and reactive power regulation margins, and are difficult to achieve precise control of AVC, AGC, and primary frequency regulation, resulting in low matching degree between new energy output and grid demand and poor system operating economy. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies in terms of insufficient control measures when new energy sources are connected to the distribution network, which leads to poor utilization of new energy sources and affects the stable operation of the distribution network. This invention provides a new energy stability coordination controller.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A new energy stability coordination controller, comprising:

[0007] The signal acquisition module is used to collect real-time status data of new energy power generation and real-time status data of the power distribution network system.

[0008] The data processing module is used to receive data collected by the signal acquisition module, process and analyze it, then send the processed and analyzed data to the dispatch system, and receive dispatch instructions matched by the dispatch system based on the processed and analyzed data, and then decompose and distribute the dispatch instructions to the local controller for execution.

[0009] The signal acquisition module includes an acquisition processor and several sampling chips. The acquisition processor is connected to several sampling chips, which are power chips used for current and voltage sampling.

[0010] Preferably, the output of the sampling chip includes three-phase voltage, three-phase current, active power, reactive power, frequency, phase angle, and harmonic data.

[0011] Preferably, the data processing module is connected to the acquisition processor via a USB data cable. The data processing module is equipped with at least an Ethernet interface, an optical interface, a serial port, a USB interface, a B-code time synchronization interface, and a wireless interface. The interfaces are used to communicate with the scheduling system and the local controller.

[0012] Preferably, the data processing module is further provided with a vertical encryption module, which is used to encrypt the processed and analyzed data, and the scheduling system is provided with a decryption module, which is used to decrypt the encrypted data.

[0013] Preferably, the sampling chip uses 12 sampling channels with a sampling frequency of 14.4kHz.

[0014] Preferably, the wireless interface is a 4G / 5G wireless interface.

[0015] The beneficial effects of this invention are: the new energy stability coordination controller can accurately capture transient changes in new energy power generation, solve the problem of state assessment lag caused by traditional low-speed sampling, and provide millisecond-level precision data support for real-time control.

[0016] This utility model verifies in real time whether new energy power generation meets grid safety constraints, automatically triggers power limiting or reactive power compensation, and avoids equipment failure or grid disconnection risks caused by voltage exceeding limits or harmonic exceeding standards. Attached Figure Description

[0017] Figure 1 This is a circuit diagram of the new energy stability coordination controller of this utility model connecting to the power grid;

[0018] Figure 2 This is a circuit schematic diagram of the signal acquisition module and data processing module of this utility model; Detailed Implementation

[0019] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0020] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0021] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0022] Example:

[0023] like Figure 1 , Figure 2 As shown, a new energy stability coordination controller includes:

[0024] The signal acquisition module is used to collect real-time status data of new energy power generation and real-time status data of the power distribution network system.

[0025] The data processing module is used to receive data collected by the signal acquisition module, process and analyze it, then send the processed and analyzed data to the dispatch system, and receive dispatch instructions matched by the dispatch system based on the processed and analyzed data. The dispatch instructions are then decomposed and sent to the local controller for execution.

[0026] The signal acquisition module includes an acquisition processor and several sampling chips. The acquisition processor is connected to several sampling chips, which are power chips used for current and voltage sampling. The output of the sampling chips includes three-phase voltage, three-phase current, active power, reactive power, frequency, phase angle, and harmonic data. The sampling chips implement 12-channel sampling with a sampling frequency of 14.4kHz or higher.

[0027] The data processing module is connected to the acquisition processor via a USB data cable. The data processing module is equipped with 4 Ethernet interfaces, 2 optical interfaces, 2 serial ports, 1 USB interface, B-code time synchronization interface, and wireless interface. The interfaces are used to communicate with the scheduling system and the local controller.

[0028] The data processing module is further equipped with a vertical encryption module, which is used to encrypt the processed and analyzed data. The scheduling system is equipped with a decryption module, which is used to decrypt the encrypted data.

[0029] The software architecture of the new energy stability coordination controller includes modules such as drivers, system kernel, communication management, and data processing. It employs component technology, where data acquisition, forwarding, caching, encryption, and processing are accomplished collaboratively by a series of reusable, independent components. These components can be configured and run independently; problems will not affect other components, and they can be reused. Component technology effectively improves the stability of the new energy stability coordination controller's business system and enhances the efficiency of intelligent terminal engineering deployment.

[0030] A control method for a new energy stability coordination controller includes the following steps:

[0031] Step 1: The signal acquisition module collects real-time status data of new energy power generation and real-time status data of the distribution network system.

[0032] Step 2: The data processing module processes and analyzes the real-time status data, generates analysis data adapted to the scheduling system, and sends it to the scheduling system.

[0033] Step 3: After receiving the analysis data, the scheduling system generates scheduling instructions based on the analysis data and sends them to the data processing module; Step 4: The data processing module sends the scheduling instructions to the local controller for execution.

[0034] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0035] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A new energy stability coordination controller, characterized in that, include: The signal acquisition module is used to collect real-time status data of new energy power generation and real-time status data of the power distribution network system. The data processing module is used to receive data collected by the signal acquisition module, process and analyze it, then send the processed and analyzed data to the dispatch system, and receive dispatch instructions matched by the dispatch system based on the processed and analyzed data, and then decompose and distribute the dispatch instructions to the local controller for execution. The signal acquisition module includes an acquisition processor and several sampling chips. The acquisition processor is connected to several sampling chips, which are power chips used for current and voltage sampling.

2. The new energy stability coordination controller according to claim 1, characterized in that, The output of the sampling chip includes three-phase voltage, three-phase current, active power, reactive power, frequency, phase angle, and harmonic data.

3. A new energy stability coordination controller according to claim 2, characterized in that, The data processing module is connected to the acquisition processor via a USB data cable. The data processing module is equipped with at least an Ethernet interface, an optical interface, a serial port, a USB interface, a B-code time synchronization interface, and a wireless interface. The interfaces are used to communicate with the scheduling system and the local controller.

4. The new energy stability coordination controller according to claim 1, characterized in that, The data processing module is further equipped with a vertical encryption module, which is used to encrypt the processed and analyzed data. The scheduling system is equipped with a decryption module, which is used to decrypt the encrypted data.

5. A new energy stability coordination controller according to claim 2, characterized in that, The sampling chip uses 12 sampling channels and a sampling frequency of 14.4kHz.

6. A new energy stability coordination controller according to claim 3, characterized in that, The wireless interface is a 4G / 5G wireless interface.

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