CN112117775A - An intelligent management and control system for decentralized wind power access to distribution network - Google Patents

An intelligent management and control system for decentralized wind power access to distribution network Download PDF

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CN112117775A
CN112117775A CN201910542771.6A CN201910542771A CN112117775A CN 112117775 A CN112117775 A CN 112117775A CN 201910542771 A CN201910542771 A CN 201910542771A CN 112117775 A CN112117775 A CN 112117775A
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wind power
distributed wind
distribution network
intelligent
power
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赵长乐
刘天羽
宋学伟
范亚楠
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Shanghai Dianji University
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/12—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/12—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load
    • H02J3/16—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load by adjustment of reactive power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

本发明涉及一种分散式风电接入配电网的智能管控系统，该系统包括主控制站、智能配变终端、调压装置、智能电表，分散式风电设备和供电设备，主控制站通信连接多个智能配变终端，各智能配变终端依次通过调压装置和供电设备连接至配电网，主控制站还通信连接多个分散式风电设备，每个分散式风电设备通过一个智能电表与主控制站通信连接；主控制站包括：分散式风电智能运维管控模块：对每一个分散式风电设备运行状态进行监测与控制；分散式风电自适应管理模块：根据配电网的运行工况分析得到每个分散式风电设备对应的电压控制策略并控制相应的分散式风电设备输出无功电压。与现有技术相比，本发明有效提高了供电质量、供电效率以及电网运行的可靠性。

Figure 201910542771

The invention relates to an intelligent management and control system for connecting distributed wind power to a distribution network. The system includes a main control station, an intelligent distribution and transformation terminal, a voltage regulating device, an intelligent electric meter, distributed wind power equipment and power supply equipment, and the main control station is communicated and connected. Multiple intelligent distribution and transformation terminals, each intelligent distribution and transformation terminal is connected to the distribution network through the voltage regulation device and power supply equipment in turn, the main control station also communicates with multiple distributed wind power equipment, and each distributed wind power equipment is connected to the power distribution network through a smart meter. The main control station is connected by communication; the main control station includes: distributed wind power intelligent operation and maintenance management and control module: monitoring and controlling the operating status of each distributed wind power equipment; distributed wind power adaptive management module: according to the operating conditions of the distribution network The voltage control strategy corresponding to each distributed wind power equipment is obtained through analysis and the output reactive voltage of the corresponding distributed wind power equipment is controlled. Compared with the prior art, the present invention effectively improves the quality of power supply, the efficiency of power supply and the reliability of power grid operation.

Figure 201910542771

Description

一种分散式风电接入配电网的智能管控系统An intelligent management and control system for decentralized wind power access to distribution network

技术领域technical field

本发明涉及一种智能管控系统，尤其是涉及一种分散式风电接入配电网的智能管控系统。The invention relates to an intelligent management and control system, in particular to an intelligent management and control system for connecting a distributed wind power to a distribution network.

背景技术Background technique

近年随着用户侧分散式风电规模越来越大，装机容量占比越来越高，全国分散式风电呈现出规模增大、电源分布点多、并网点分散、渗透率高、调控面广、单配电网变成多电源供电结构等特点，而分散式风电大规模多点接入传统配电网，会给电网的安全、经济运行及供电电能质量造成严重影响。In recent years, with the increasing scale of user-side distributed wind power, the proportion of installed capacity is getting higher and higher, the national distributed wind power has shown an increase in scale, many power distribution points, scattered grid connection points, high penetration rate, wide control area, The single distribution network has become a multi-source power supply structure and other characteristics, and the large-scale multi-point connection of distributed wind power to the traditional distribution network will have a serious impact on the safety, economic operation and power quality of the power grid.

目前普遍使用的公变在线监测终端在设计时并未过多考虑分散式风电接入的因素，导致在公变台区下，现有的公变在线监测终端无法对大量接入的分散式风电设备进行有效监测和管理。目前已经有一些大规模分散式风电接入地区的台区电压出现问题，比如白天发电高峰期电网的持续高电压，给用户的用电设备以及电网设备带来极大的安全隐患。At present, the commonly used public transformer online monitoring terminals are not designed with too much consideration of the factors of distributed wind power access, resulting in the existing public transformer online monitoring terminals in the public transformer station area. Equipment is effectively monitored and managed. At present, some large-scale decentralized wind power access areas have experienced voltage problems in the platform area, such as the continuous high voltage of the power grid during the peak power generation during the day, which has brought great security risks to the user's electrical equipment and power grid equipment.

发明内容SUMMARY OF THE INVENTION

本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种分散式风电接入配电网的智能管控系统。The purpose of the present invention is to provide an intelligent management and control system for the access of distributed wind power to the distribution network in order to overcome the above-mentioned defects of the prior art.

本发明的目的可以通过以下技术方案来实现：The object of the present invention can be realized through the following technical solutions:

一种分散式风电接入配电网的智能管控系统，该系统包括主控制站、智能配变终端、调压装置、智能电表，分散式风电设备和供电设备，所述的主控制站通信连接多个智能配变终端，各智能配变终端对应连接电网台区内的调压装置，所述的调压装置通过供电设备连接至配电网，所述的主控制站还通信连接多个分散式风电设备，每个分散式风电设备通过一个智能电表与主控制站通信连接；An intelligent management and control system for connecting distributed wind power to a distribution network, the system includes a main control station, an intelligent distribution and transformation terminal, a voltage regulator, a smart meter, distributed wind power equipment and power supply equipment, and the main control station is communicatively connected A plurality of intelligent distribution and transformation terminals, each intelligent distribution and transformation terminal is correspondingly connected to the voltage regulation device in the grid station area, the voltage regulation device is connected to the distribution network through the power supply equipment, and the main control station is also connected to a plurality of distributed Each distributed wind power equipment communicates with the main control station through a smart meter;

所述的主控制站包括：The main control station includes:

分散式风电智能运维管控模块：该模块对每一个分散式风电设备运行状态进行监测与控制；Distributed wind power intelligent operation and maintenance management and control module: This module monitors and controls the operation status of each distributed wind power equipment;

分散式风电自适应管理模块：该模块根据配电网的运行工况分析得到对应台区内每一个分散式风电设备对应的电压控制策略并控制相应的分散式风电设备输出无功电压。Distributed wind power adaptive management module: This module obtains the corresponding voltage control strategy for each distributed wind power equipment in the corresponding platform area according to the operating conditions of the distribution network, and controls the corresponding distributed wind power equipment to output reactive voltage.

优选地，所述的主控制站还包括故障报警模块：该模块接收分散式风电设备的故障信号和相应的地理位置生成故障报警信号进行报警提示。Preferably, the main control station further includes a fault alarm module: the module receives the fault signal of the distributed wind power equipment and the corresponding geographical location to generate the fault alarm signal to give an alarm prompt.

优选地，所述的智能配变终端包括调压控制模块，该模块获取配电网的运行工况并分析得到对应台区的电压控制策略，进行控制各调压装置按照对应台区的电压控制策略进行调压控制。Preferably, the intelligent distribution and transformation terminal includes a voltage regulation control module, which obtains the operating conditions of the distribution network and analyzes the voltage control strategy of the corresponding station area, and controls each voltage regulation device according to the voltage control of the corresponding station area. strategy for voltage regulation control.

优选地，所述的调压装置包括载调压变压器、低压线路调压器、风机逆变器以及无功补偿器。Preferably, the voltage regulating device includes an on-load voltage regulating transformer, a low-voltage line voltage regulator, a fan inverter and a reactive power compensator.

优选地，所述的无功补偿器包括同步调相机、开关投切固定电容、静止无功补偿器和静止无功发生器。Preferably, the reactive power compensator includes a synchronous camera, a switching fixed capacitor, a static var compensator and a static var generator.

优选地，该系统还包括复合储能装置，所述的复合储能装置包括复合储能器和复合储能变换器，所述的复合储能器通过复合储能变换器连接至配电网，所述的复合储能器通信连接所述的主控制站；Preferably, the system further includes a composite energy storage device, the composite energy storage device includes a composite energy storage device and a composite energy storage converter, and the composite energy storage device is connected to the power distribution network through the composite energy storage converter, The composite energy storage device is communicatively connected to the main control station;

对应地，所述的主控制站包括复合储能控制模块，所述的复合储能控制模块控制复合储能器将其储存的电能通过复合储能变换器逆变输入到配电网上。Correspondingly, the main control station includes a composite energy storage control module, and the composite energy storage control module controls the composite energy storage device to invert and input the stored electric energy to the power distribution grid through the composite energy storage converter.

优选地，所述的复合储能器为超级电容或蓄电池，或为超级电容和蓄电池的组合。Preferably, the composite energy storage device is a supercapacitor or a battery, or a combination of a supercapacitor and a battery.

优选地，该系统还包括配电自动化装置，所述的配电自动化装置通信连接所述的主控制站，所述的配电自动化装置包括：Preferably, the system further includes a distribution automation device, the distribution automation device is communicatively connected to the main control station, and the distribution automation device includes:

电网调度自动化模块：该模块用于变电站运行的自动化控制和配电自动化控制；Power grid dispatch automation module: This module is used for automatic control of substation operation and automatic control of distribution;

电能计量自动化模块：该模块用于对所述的智能电表进行远程抄表、用电量统计和用电费率计算。Electric energy metering automation module: This module is used for remote meter reading, electricity consumption statistics and electricity consumption rate calculation for the smart meter.

优选地，所述的通信连接包括有线或无线通讯方式，其中，所述的无线通讯方式包括载波、Zigbee、3G、4G和GPRS通信方式。Preferably, the communication connection includes wired or wireless communication, wherein the wireless communication includes carrier, Zigbee, 3G, 4G and GPRS communication.

与现有技术相比，本发明具有如下优点：Compared with the prior art, the present invention has the following advantages:

(1)本发明实现了对分散式风电设备运行状况(包括发电量、设备状态、开关状态)的实时监测和远程管理，提高了智能化管理程度；(1) The present invention realizes the real-time monitoring and remote management of the operating conditions (including power generation, equipment status, and switching status) of the decentralized wind power equipment, and improves the degree of intelligent management;

(2)本发明还能对台区的电压质量、线损率和三相不平衡度等的实时监测和管理，功能全面丰富；(2) The present invention can also monitor and manage the voltage quality, line loss rate and three-phase unbalance of the station area in real time, with comprehensive and rich functions;

(3)本发明设置故障报警模块能够对台区内发生的分散式风电设备的相关故障进行精准定位，并通过分析故障发生原因及时做出排障动作，减少了供电企业日常维护的工作量，提高了供电质量、供电效率以及电网运行的可靠性。(3) The fault alarm module provided in the present invention can accurately locate the related faults of the distributed wind power equipment in the platform area, and make timely troubleshooting actions by analyzing the causes of the faults, thereby reducing the workload of the daily maintenance of the power supply enterprises. Improve the quality of power supply, power supply efficiency and reliability of power grid operation.

附图说明Description of drawings

图1为实施例1分散式风电接入配电网的智能管控系统的结构框图；Fig. 1 is the structural block diagram of the intelligent management and control system of the distributed wind power connected to the distribution network in Embodiment 1;

图2为实施例1中主控制站的结构框图；Fig. 2 is the structural block diagram of the main control station in the embodiment 1;

图3为实施例2分散式风电接入配电网的智能管控系统的结构框图；FIG. 3 is a structural block diagram of the intelligent management and control system for the distributed wind power access to the distribution network in Embodiment 2;

图4为实施例3分散式风电接入配电网的智能管控系统的结构框图；FIG. 4 is a structural block diagram of the intelligent management and control system for the distributed wind power access to the distribution network in Embodiment 3;

图5为实施例3中配电自动化装置7的结构框图。FIG. 5 is a structural block diagram of the power distribution automation device 7 in the third embodiment.

图中，1为主控制站，2为智能配变终端，3为调压装置，4为智能电表，5为复合储能器，6为复合储能变换器，7为配电自动化装置，8为供电设备，100为分散式风电设备，11为分散式风电智能运维管控模块，12为分散式风电自适应管理模块，13为故障报警模块，71为电网调度自动化模块，72为电能计量自动化模块。In the figure, 1 is the main control station, 2 is the intelligent distribution transformer terminal, 3 is the voltage regulator, 4 is the smart meter, 5 is the composite energy storage device, 6 is the composite energy storage converter, 7 is the distribution automation device, and 8 is the power distribution automation device. 100 is the power supply equipment, 100 is the decentralized wind power equipment, 11 is the decentralized wind power intelligent operation and maintenance management and control module, 12 is the decentralized wind power adaptive management module, 13 is the fault alarm module, 71 is the power grid dispatching automation module, and 72 is the power metering automation module. module.

具体实施方式Detailed ways

下面结合附图和具体实施例对本发明进行详细说明。注意，以下的实施方式的说明只是实质上的例示，本发明并不意在对其适用物或其用途进行限定，且本发明并不限定于以下的实施方式。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the description of the following embodiments is merely an illustration in essence, and the present invention is not intended to limit its application or use, and the present invention is not limited to the following embodiments.

实施例1Example 1

如图1所示，一种分散式风电接入配电网的智能管控系统，该系统包括主控制站1、智能配变终端2、调压装置3、智能电表4，分散式风电设备100和供电设备8，所述主控制站1通信连接多个智能配变终端2，各智能配变终端2对应连接电网台区内的调压装置3，调压装置3通过供电设备8连接至配电网，主控制站1还通信连接多个分散式风电设备100，每个分散式风电设备100通过一个智能电表4与主控制站1通信连接。As shown in Figure 1, an intelligent management and control system for distributed wind power access to the distribution network, the system includes a main control station 1, an intelligent distribution and transformation terminal 2, a voltage regulating device 3, a smart meter 4, distributed wind power equipment 100 and Power supply equipment 8, the main control station 1 is connected to a plurality of intelligent distribution and transformation terminals 2 in communication, and each intelligent distribution and transformation terminal 2 is correspondingly connected to the voltage regulation device 3 in the grid station area, and the voltage regulation device 3 is connected to the power distribution through the power supply device 8 The main control station 1 is also communicatively connected to a plurality of distributed wind power installations 100 , and each distributed wind power installation 100 is communicatively connected to the main control station 1 through a smart meter 4 .

具体地，如图2所示，主控制站1包括：Specifically, as shown in Figure 2, the main control station 1 includes:

分散式风电智能运维管控模块11：该模块对每一个分散式风电设备100运行状态进行监测与控制；Distributed wind power intelligent operation and maintenance management and control module 11: this module monitors and controls the operation status of each distributed wind power equipment 100;

分散式风电自适应管理模块12：该模块根据配电网的运行工况分析得到对应台区内每一个分散式风电设备100对应的电压控制策略并控制相应的分散式风电设备100输出无功电压；Distributed wind power adaptive management module 12: This module obtains the voltage control strategy corresponding to each distributed wind power equipment 100 in the corresponding platform area according to the operation condition analysis of the distribution network, and controls the corresponding distributed wind power equipment 100 to output reactive voltage ;

故障报警模块13：该模块接收分散式风电设备100的故障信号和相应的地理位置生成故障报警信号进行报警提示。Fault alarm module 13: This module receives the fault signal of the distributed wind power equipment 100 and the corresponding geographical location to generate a fault alarm signal to give an alarm prompt.

智能配变终端2包括调压控制模块，该模块获取配电网的运行工况并分析得到对应台区的电压控制策略，进行控制各调压装置3按照对应台区的电压控制策略进行调压控制。The intelligent distribution transformer terminal 2 includes a voltage regulation control module, which obtains the operating conditions of the distribution network and analyzes the voltage control strategy of the corresponding station area, and controls each voltage regulation device 3 to regulate the voltage according to the voltage control strategy of the corresponding station area. control.

调压装置3包括载调压变压器、低压线路调压器、风机逆变器以及无功补偿器。无功补偿器包括同步调相机、开关投切固定电容、静止无功补偿器和静止无功发生器。The voltage regulating device 3 includes a load voltage regulating transformer, a low voltage line voltage regulator, a fan inverter and a reactive power compensator. The reactive power compensator includes synchronous camera, switching fixed capacitor, static var compensator and static var generator.

为了满足不同厂家、不同规格的分散式风电设备接入同一配电网的需求，于本发明实施例1中，分散式风电设备100通过智能电表4与所述主控制站1连接。每一个所述智能电表4具备相同的通信规约，比如具备相同的规约类型、相同的报文格式和加密要求等。In order to meet the requirements of different manufacturers and different specifications of the distributed wind power equipment being connected to the same distribution network, in the first embodiment of the present invention, the distributed wind power equipment 100 is connected to the main control station 1 through the smart meter 4 . Each of the smart meters 4 has the same communication protocol, such as the same protocol type, the same message format and encryption requirements.

本实施例分散式风电接入配电网的智能管控系统实现对分散式风电接入配电网的智能管控的工作原理如下：The working principle of the intelligent management and control system for the access of distributed wind power to the distribution network in this embodiment is as follows:

分布在台区内各电压监测点上的各个电网数据监测设备将监测到的配电网运行工况实时传输给所述主控制站1，接入台区配电网的每一个所述分散式风电设备100同样将自身设备运行工况实时传送给所述主控制站1。主控制站1将配电网的运行工况数据信息发送给对应台区的智能配变终端2，该智能配变终端2根据接收到的该台区内的配电网的运行工况信息分析得出对应台区的电压控制策略，然后控制所述对应台区内的各调压装置3按照所述对应台区的所述电压控制策略进行相关的调压操作。主控制站1同时根据台区配电网的运行工况以及每一个所述分散式风电设备100发送的自身运行工况信息分析得出对应台区内每一个所述分散式风电设备100对应的分散式风电设备电压控制策略，并控制每一个所述分散式风电设备100按照对应的所述分散式风电设备电压控制策略输出无功电压。Each power grid data monitoring device distributed at each voltage monitoring point in the station area transmits the monitored operating conditions of the distribution network to the main control station 1 in real time, and is connected to each of the distributed power distribution networks in the station area. The wind power equipment 100 also transmits the operating conditions of its own equipment to the main control station 1 in real time. The main control station 1 sends the operating condition data information of the distribution network to the intelligent distribution transformer terminal 2 in the corresponding station area, and the intelligent distribution transformer terminal 2 analyzes the operation condition information of the distribution network received in the station area. The voltage control strategy of the corresponding station area is obtained, and then each voltage regulating device 3 in the corresponding station area is controlled to perform related voltage regulation operations according to the voltage control strategy of the corresponding station area. The main control station 1 also analyzes the operating conditions of the distribution network in the station area and the information about its own operating conditions sent by each of the distributed wind power equipment 100 to obtain the corresponding value of each of the distributed wind power equipment 100 in the corresponding station area. The distributed wind power equipment voltage control strategy, and control each of the distributed wind power equipment 100 to output reactive voltage according to the corresponding distributed wind power equipment voltage control strategy.

该实施例提供的分散式风电接入配电网的智能管控系统还具备定位分散式风电设备相关故障的功能，并且能够自动分析故障发生原因并及时做出排障动作，具体排障原理如下：The intelligent management and control system for the distributed wind power connected to the distribution network provided by this embodiment also has the function of locating the related faults of the distributed wind power equipment, and can automatically analyze the cause of the fault and make troubleshooting actions in time. The specific troubleshooting principles are as follows:

当台区内某一分散式风电设备100发生故障时，比如无法正常工作时，该分散式风电设备100将向所述的主控制站1发生一故障发生信号。所述主控制站1还包括一地理信息获取模块，所述主控制站1的所述地理信息获取模块可用于获取对应台区内每一个所述分散式风电设备100的地理位置。所述主控制站1系统将根据接收到的故障发生信号定位得到对应的该分散式风电设备100的地理位置，并通过分析故障发生原因及时做出排障动作。所述主控制站1将根据接收到的所述故障发生信号生成一报警提示信号，并将生成的报警提示信号显示在智能终端的用户界面上，以提醒电网工作人员及时做出排障反应。When a certain distributed wind power equipment 100 in the station area fails, for example, cannot work normally, the distributed wind power equipment 100 will send a fault occurrence signal to the main control station 1 . The main control station 1 further includes a geographic information acquisition module, and the geographic information acquisition module of the main control station 1 can be used to acquire the geographic location of each of the distributed wind power equipment 100 in the corresponding station area. The main control station 1 system will locate the corresponding geographical location of the distributed wind power equipment 100 according to the received fault occurrence signal, and make troubleshooting actions in time by analyzing the cause of the fault. The main control station 1 will generate an alarm prompt signal according to the received fault occurrence signal, and display the generated alarm prompt signal on the user interface of the intelligent terminal to remind the grid staff to make a timely troubleshooting response.

实施例2Example 2

如图3所示，实施例2与实施例1的区别在于，实施例2提供的分散式风电接入配电网的智能管控系统还包括复合储能装置，复合储能装置包括复合储能器5和复合储能变换器6，复合储能器5通过复合储能变换器6连接至配电网，复合储能器5通信连接主控制站1；对应地，主控制站1包括复合储能控制模块13，复合储能控制模块13控制复合储能器5将其储存的电能通过复合储能变换器6逆变输入到配电网上。复合储能器5为超级电容或蓄电池，或为超级电容和蓄电池的组合。也就是说，所述的复合储能器5可以由单一的超级电容或单一的蓄电池作为储能介质向配电网供电，也可以由超级电容和蓄电池共同组成的储能介质向配电网进行联合供电。由于所述的复合储能器5存在不同的储能介质与配电网之间的功率传输问题，所以为了解决不同储能介质与配电网之间的功率传输问题，于所述复合储能变换器6中预设有多个供电控制策略，所述复合储能变换器6根据所述主控制站1发送的供电控制信号并按照对应的所述供电控制策略向配电网供电。As shown in FIG. 3 , the difference between Embodiment 2 and Embodiment 1 is that the intelligent management and control system for the distributed wind power connected to the distribution network provided in Embodiment 2 further includes a composite energy storage device, and the composite energy storage device includes a composite energy storage device. 5 and the composite energy storage converter 6, the composite energy storage device 5 is connected to the power distribution network through the composite energy storage converter 6, and the composite energy storage device 5 is communicatively connected to the main control station 1; correspondingly, the main control station 1 includes a composite energy storage device The control module 13, the composite energy storage control module 13 controls the composite energy storage 5 to invert and input the stored electric energy to the power distribution grid through the composite energy storage converter 6. The composite energy storage 5 is a supercapacitor or a battery, or a combination of a supercapacitor and a battery. That is to say, the composite energy storage device 5 can supply power to the distribution network by a single supercapacitor or a single battery as the energy storage medium, or can be supplied to the distribution network by the energy storage medium composed of the supercapacitor and the battery. Combined power supply. Since the composite energy storage 5 has the problem of power transmission between different energy storage media and the distribution network, in order to solve the problem of power transmission between different energy storage media and the distribution network, the composite energy storage A plurality of power supply control strategies are preset in the converter 6, and the composite energy storage converter 6 supplies power to the distribution network according to the power supply control signal sent by the main control station 1 and according to the corresponding power supply control strategy.

实施例3Example 3

如图4、图5所示，实施例3与实施例2的区别在于，实施例3提供的分散式风电接入配电网的智能管控系统还包括配电自动化装置7，配电自动化装置7通信连接主控制站1，配电自动化装置7包括：As shown in FIG. 4 and FIG. 5 , the difference between Embodiment 3 and Embodiment 2 is that the intelligent management and control system for the distributed wind power connected to the distribution network provided by Embodiment 3 further includes a distribution automation device 7 , and the distribution automation device 7 The main control station 1 is communicatively connected, and the distribution automation device 7 includes:

电网调度自动化模块71：该模块用于变电站运行的自动化控制和配电自动化控制；Power grid dispatch automation module 71: this module is used for automatic control of substation operation and automatic control of distribution;

电能计量自动化模块72：该模块用于对智能电表4进行远程抄表、用电量统计和用电费率计算。Electric energy metering automation module 72 : this module is used to perform remote meter reading, electricity consumption statistics and electricity consumption rate calculation for the smart electricity meter 4 .

需要说明的是，为了实现主控制站1与每一个分散式风电设备100以及每一个智能配变终端2之间的通信连接，实现每一个智能配变终端2与对应台区内的各调压装置3的通信连接，本发明实施例1、实施例2和实施例3提供分散式风电接入配电网的智能管控系统均提供有线和无线两种通信方式实现设备间的数据交互，其中有线通信方式优选为光纤通信连接，所述无线通讯方式则包括载波、Zigbee、3G、4G和GPRS通信方式。每一个智能配变终端2相互之间和每一个智能配变终端2和对应台区内的各调压装置3之间可通过有线或无线方式实现通信连接，电网工作人员可根据实际情况灵活选择有线或无线通信方式。It should be noted that, in order to realize the communication connection between the main control station 1 and each distributed wind power equipment 100 and each intelligent distribution transformer terminal 2, each intelligent distribution transformer terminal 2 and each voltage regulation in the corresponding station area are realized. The communication connection of the device 3. The intelligent management and control systems for the distributed wind power access to the distribution network provided by the first, second and third embodiments of the present invention all provide wired and wireless communication modes to realize data exchange between devices, wherein wired The communication method is preferably an optical fiber communication connection, and the wireless communication method includes carrier wave, Zigbee, 3G, 4G and GPRS communication methods. The communication connection between each intelligent distribution transformer terminal 2 and each intelligent distribution transformer terminal 2 and each voltage regulating device 3 in the corresponding station area can be realized by wired or wireless means, and the power grid staff can flexibly choose according to the actual situation wired or wireless communication.

综上所述，本发明实现了对分散式风电设备运行状况的实时监测和远程管理；实现了对台区的分散式风电设备100的发电量、设备状态、开关状态的实时监测和管理；实现了对台区的电压质量、线损率和三相不平衡度等的实时监测和管理；并且能够对台区内发生的分散式风电设备的相关故障进行精准定位，并通过分析故障发生原因及时做出排障动作，减少了供电企业日常维护的工作量，提高了供电质量、供电效率以及电网运行的可靠性。In summary, the present invention realizes the real-time monitoring and remote management of the operation status of the distributed wind power equipment; realizes the real-time monitoring and management of the power generation, equipment status and switching status of the distributed wind power equipment 100 in the platform area; Real-time monitoring and management of the voltage quality, line loss rate and three-phase unbalance in the platform area; and can accurately locate the related faults of the distributed wind power equipment in the platform area, and analyze the causes of the faults in a timely manner. Troubleshooting actions can reduce the daily maintenance workload of power supply enterprises, and improve the quality of power supply, power supply efficiency and reliability of power grid operation.

上述实施方式仅为例举，不表示对本发明范围的限定。这些实施方式还能以其它各种方式来实施，且能在不脱离本发明技术思想的范围内作各种省略、置换、变更。The above-described embodiments are merely examples, and do not limit the scope of the present invention. These embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the technical idea of the present invention.

Claims (9)

1. The intelligent management and control system for accessing the distributed wind power into the power distribution network is characterized by comprising a main control station (1), intelligent distribution and transformation terminals (2), a voltage regulating device (3), an intelligent electric meter (4), distributed wind power equipment (100) and power supply equipment (8), wherein the main control station (1) is in communication connection with the intelligent distribution and transformation terminals (2), each intelligent distribution and transformation terminal (2) is correspondingly connected with the voltage regulating device (3) in a power grid area, the voltage regulating device (3) is connected to the power distribution network through the power supply equipment (8), the main control station (1) is also in communication connection with the distributed wind power equipment (100), and each distributed wind power equipment (100) is in communication connection with the main control station (1) through one intelligent electric meter (4);
the master control station (1) comprises:
distributed wind power intelligent operation and maintenance management and control module (11): the module monitors and controls the running state of each distributed wind power device (100);
distributed wind power self-adaptive management module (12): the module analyzes the operation condition of the power distribution network to obtain a voltage control strategy corresponding to each distributed wind power device (100) in the corresponding distribution area and controls the corresponding distributed wind power device (100) to output reactive voltage.
2. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 1, wherein the main control station (1) further comprises a fault alarm module (13): the module receives fault signals of the distributed wind power equipment (100) and corresponding geographic positions to generate fault alarm signals for alarm prompting.
3. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 1, wherein the intelligent distribution and transformation terminal (2) comprises a voltage regulation control module, the module acquires the operating condition of the power distribution network and analyzes the operating condition to obtain a voltage control strategy of a corresponding distribution area, and controls each voltage regulation device (3) to perform voltage regulation control according to the voltage control strategy of the corresponding distribution area.
4. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 1, wherein the voltage regulating device (3) comprises a load regulating transformer, a low-voltage line voltage regulator, a fan inverter and a reactive compensator.
5. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 4, wherein the reactive power compensator comprises a synchronous phase modulator, a switch-switched fixed capacitor, a static reactive power compensator and a static reactive power generator.
6. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 1, characterized in that the system further comprises a composite energy storage device, the composite energy storage device comprises a composite energy storage device (5) and a composite energy storage converter (6), the composite energy storage device (5) is connected to the power distribution network through the composite energy storage converter (6), and the composite energy storage device (5) is in communication connection with the main control station (1);
correspondingly, the main control station (1) comprises a composite energy storage control module (13), and the composite energy storage control module (13) controls the composite energy storage device (5) to invert the electric energy stored in the composite energy storage device to be input to the power distribution network through the composite energy storage converter (6).
7. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 1, wherein the composite energy storage device (5) is a super capacitor or a storage battery, or a combination of the super capacitor and the storage battery.
8. The intelligent management and control system for accessing distributed wind power to a power distribution network according to claim 1, further comprising a power distribution automation device (7), wherein the power distribution automation device (7) is communicatively connected to the main control station (1), and the power distribution automation device (7) comprises:
grid dispatching automation module (71): the module is used for automatic control of the operation of the transformer substation and automatic control of power distribution;
electric energy metering automation module (72): the module is used for carrying out remote meter reading, electricity consumption statistics and electricity consumption rate calculation on the intelligent electric meter (4).
9. The system according to claim 1, 6 or 8, wherein the communication connection includes a wired or wireless communication mode, and the wireless communication mode includes a carrier, Zigbee, 3G, 4G, or GPRS communication mode.
CN201910542771.6A 2019-06-21 2019-06-21 An intelligent management and control system for decentralized wind power access to distribution network Pending CN112117775A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114914931A (en) * 2022-04-27 2022-08-16 国家电投集团江苏电力有限公司 Decentralized energy storage system based on wind power plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114914931A (en) * 2022-04-27 2022-08-16 国家电投集团江苏电力有限公司 Decentralized energy storage system based on wind power plant

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