CN111864901A - A coordinated control method of distributed FA and master station FA with adaptive communication delay - Google Patents
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Abstract
本发明公开了一种自适应通信时延的分布式FA与主站FA的协同控制方法，包括：建立考虑通信时延的智能分布式FA与主站FA交互模型；计及通信时延的分布式FA与主站FA协同控制；通信时延不稳定时，分布式FA与主站FA协同控制策略自适应调整；本发明设计合理，分布式FA可适应于光纤、无线专网、无线公网等各种通信方式，且分布式FA与主站FA协同控制策略自适应通信时延，线路故障处理更可靠，故障隔离范围更精确，提升了供电可靠性。
The invention discloses a coordinated control method of a distributed FA and a master station FA with adaptive communication delay, including: establishing an interactive model of an intelligent distributed FA and a master station FA considering the communication delay; The distributed FA and the main station FA are controlled cooperatively; when the communication delay is unstable, the distributed FA and the main station FA cooperative control strategy is adaptively adjusted; the design of the present invention is reasonable, and the distributed FA can be adapted to optical fiber, wireless private network and wireless public network. and other communication methods, and the distributed FA and the master station FA coordinated control strategy to adapt to the communication delay, the line fault processing is more reliable, the fault isolation range is more accurate, and the power supply reliability is improved.
Description
技术领域technical field
本发明属于配电自动化技术领域，具体涉一种自适应通信时延的分布式FA与主站FA的协同控制方法。The invention belongs to the technical field of power distribution automation, and in particular relates to a coordinated control method of a distributed FA and a master station FA with adaptive communication delay.
背景技术Background technique
实现配电自动化是电力系统发展的需求，而馈线自动化(FA)技术是配网自动化的核心技术。馈线自动化主要采用就地分布式FA、集中式FA两种方式实现。配电主干环路主要采用集中式FA控制的方式，通过主站系统协调，借助通信信息来实现控制；支线、辐射供电多采用就地分布式FA控制的方式，局部范围实现快速控制。近些年来，随着自动化程度的提升，还增加了主站集中式与就地分布式协调配合的控制方式，但分布式FA及分布式FA与主站协同控制对通信速度和可靠性要求高，一般要求为光纤通信，施工成本高、难度大、周期长，不利于分布式FA的应用推广。The realization of distribution automation is the demand of power system development, and feeder automation (FA) technology is the core technology of distribution network automation. Feeder automation is mainly realized in two ways: local distributed FA and centralized FA. The main power distribution trunk loop mainly adopts the centralized FA control method, which is controlled by the master station system and with the help of communication information; the branch line and radiated power supply mostly adopt the local distributed FA control method, and the local area can realize fast control. In recent years, with the improvement of the degree of automation, the control mode of centralized and local distributed coordination of the master station has also been added, but distributed FA and distributed FA and master station coordinated control have high requirements for communication speed and reliability. , the general requirement is optical fiber communication, the construction cost is high, the difficulty is large, and the cycle is long, which is not conducive to the application and promotion of distributed FA.
发明内容SUMMARY OF THE INVENTION
本发明所要解决的技术问题在于克服现有技术的不足，为了实现系统的灵活配置以及解决在配置过程中因配置人员的操作失误导致的终端邻接关系不正确的问题，提出一种自适应通信时延的分布式FA与主站FA的协同控制方法。The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art. In order to realize the flexible configuration of the system and solve the problem of incorrect terminal adjacency relationship caused by the operation error of the configuration personnel in the configuration process, an adaptive communication method is proposed. The coordinated control method of the distributed distributed FA and the master station FA.
为了实现上述目标，本发明采用如下技术方案：In order to achieve the above goals, the present invention adopts the following technical solutions:
一种自适应通信时延的分布式FA与主站FA的协同控制方法，包括以下步骤：A coordinated control method of a distributed FA and a master station FA with adaptive communication delay, comprising the following steps:
建立考虑通信时延的智能分布式FA与主站FA交互模型；Establish an interactive model of intelligent distributed FA and master station FA considering communication delay;
考虑通信时延的分布式FA与主站FA协同控制；Coordinated control between distributed FA and master station FA considering communication delay;
通信时延不稳定时，分布式FA与主站FA协同控制策略自适应调整。When the communication delay is unstable, the coordinated control strategy of the distributed FA and the master station FA is adjusted adaptively.
进一步的，所述建立考虑通信时延的智能分布式FA与主站FA交互模型，具体为：Further, the establishment of an intelligent distributed FA and master station FA interaction model considering communication delay is specifically:
在分布式FA和主站集中式FA数据交互的逻辑节点增加通信时延描述模型，用于描述逻辑节点数据的时效性；A communication delay description model is added to the logical nodes where the distributed FA and the centralized FA data of the main station interact, which is used to describe the timeliness of the logical node data;
在智能分布式FA和主站FA中交互的各种不同故障类型模型增加通信时延模型，表述各种不同故障类型的时效性。The communication delay model is added to the various fault type models interacting in the intelligent distributed FA and the master station FA to express the timeliness of various fault types.
进一步的，所述通信时延模型均基于IEC 61850标准进行建模。Further, the communication delay models are all modeled based on the IEC 61850 standard.
进一步的，所述分布式FA与主站FA协同控制，需考虑分布式FA终端之间的通信延时和分布式FA终端与主站之间的通信时延，进行故障分析和故障处理，具体为：Further, in the coordinated control of the distributed FA and the master station FA, it is necessary to consider the communication delay between the distributed FA terminals and the communication delay between the distributed FA terminal and the master station, and perform fault analysis and troubleshooting. for:
故障分析为简单故障时，分布式FA终端之间交互信息，通信时延小于20ms时，交互数据有效，分布式FA进行故障定位、隔离，主站FA负责非故障区域转供操作；When the fault analysis is a simple fault, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the exchanged data is valid, the distributed FA performs fault location and isolation, and the master station FA is responsible for the transfer operation in the non-faulty area;
故障分析为复杂故障时，分布式FA终端之间交互信息，通信时延小于20ms时，交互数据有效，分布式FA进行故障定位、隔离，主站FA提供监视、备用纠错手段。When the fault is analyzed as a complex fault, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the exchanged data is valid. The distributed FA performs fault location and isolation, and the master station FA provides monitoring and backup error correction means.
进一步的，故障分析为简单故障时，考虑通信时延的协同规则进行数据交互，具体为：Further, when the fault analysis is a simple fault, data interaction is carried out considering the coordination rules of communication delay, specifically:
线路发生故障时，分布式FA终端之间交互信息，通信时延小于20ms时，分布式FA终端完成故障隔离且生成事故处理信息，然后将包括通信时延信息在内的一致性信号模型上送至配电主站；When a line fault occurs, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the distributed FA terminal completes fault isolation and generates accident handling information, and then sends the consistent signal model including the communication delay information. to the main power distribution station;
主站集中式FA除了接收到传统的过流信号和开关分闸信号之外，通过现有通信规约还接收分布式FA上送的事故处理信息和通信时延信息；In addition to receiving the traditional overcurrent signal and switch opening signal, the centralized FA of the master station also receives the accident handling information and communication delay information sent by the distributed FA through the existing communication protocol;
主站根据事故处理信息的描述及时延信息，判定出分布式FA处理的正确性，主站集中式FA及时进行后备纠错处理。The master station determines the correctness of the distributed FA processing according to the description and delay information of the accident processing information, and the centralized FA of the master station performs backup error correction processing in time.
进一步的，故障分析为复杂故障时，考虑通信时延的协同规则进行数据交互，具体为：Further, when the fault analysis is a complex fault, data interaction is carried out considering the coordination rules of communication delay, specifically:
线路发生故障时，分布式FA终端之间交互信息，通信时延小于20ms时，分布式FA终端完成故障隔离且生成事故处理信息，然后将包括通信时延信息在内的一致性信号模型上送至配电主站；When a line fault occurs, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the distributed FA terminal completes fault isolation and generates accident handling information, and then sends the consistent signal model including the communication delay information. to the main power distribution station;
主站集中式FA除了接收到传统的过流信号和开关分闸信号之外，通过现有通信规约还接收分布式FA上送的事故处理信息和通信时延信息；In addition to receiving the traditional overcurrent signal and switch opening signal, the centralized FA of the master station also receives the accident handling information and communication delay information sent by the distributed FA through the existing communication protocol;
主站根据事故处理信息的描述及时延信息，判定出分布式FA处理的正确性，针对接收到的事故处理信息分析非故障区域负荷转供最优的恢复路径，完成故障恢复处理。The master station determines the correctness of the distributed FA processing according to the description and delay information of the accident processing information, analyzes the received accident processing information and provides the optimal recovery path for load transfer in the non-faulty area, and completes the fault recovery processing.
进一步的，通信时延不稳定时，分布式FA与主站FA协同控制策略自适应调整，具体为：Further, when the communication delay is unstable, the coordinated control strategy of the distributed FA and the master station FA is adjusted adaptively, specifically:
分布式FA终端之间通信中断时，终端闭锁分布式FA功能，线路发生故障时，将自身采集到的信息上送主站，主站集中式FA进行故障分析和处理；When the communication between the distributed FA terminals is interrupted, the terminal blocks the distributed FA function. When the line fails, the information collected by itself is sent to the master station, and the master station centralized FA for fault analysis and processing;
分布式FA终端之间通信时延超过20ms但未中断时，线路发生故障并监测到过流信息时，控制开关进行快速故障隔离，当延时收到相邻终端的信息后再进行综合判断，根据判断结果进行纠错，并将处理信息上送主站，主站FA进行监视处理；When the communication delay between distributed FA terminals exceeds 20ms but is not interrupted, when the line is faulty and overcurrent information is monitored, the control switch will perform rapid fault isolation. Perform error correction according to the judgment result, and send the processing information to the master station, and the master station FA performs monitoring processing;
分布式FA终端与主站之间通信中断时，线路发生故障时不影响分布式FA的故障分析和处理，待通信恢复后，将处理信息上送主站，主站FA进行监视处理。When the communication between the distributed FA terminal and the master station is interrupted, the fault analysis and processing of the distributed FA will not be affected when the line fails. After the communication is restored, the processing information will be sent to the master station, and the master station FA will monitor and process it.
本发明所达到的有益效果：The beneficial effects achieved by the present invention:
本发明设计合理，由于分布式FA的特点是动作迅速，定位准确，对通信速度和可靠性要求高。因此通过建立考虑通信时延的分布式FA与主站集中式FA的协同控制策略，在发生故障时刻，分布式FA考虑通信时延后，完成故障分析、隔离，并上送事故处理信息和通信时延，配网主站集中式FA监视分布式FA处理信息；当判断出故障为简单故障时，由分布式FA考虑通信时延进行故障定位、隔离及非故障区域恢复供电，主站集中式FA作为后备；当判断出故障为复杂故障时，由分布式FA考虑通信时延进行故障定位、隔离，非故障区域恢复由供电主站集中式FA完成。本发明的方法自适应通信时延，线路故障处理更可靠，故障隔离范围更精确，提高了供电可靠性。The design of the present invention is reasonable, because the distributed FA is characterized by rapid action, accurate positioning, and high requirements on communication speed and reliability. Therefore, by establishing a coordinated control strategy between the distributed FA considering the communication delay and the centralized FA of the main station, when a fault occurs, the distributed FA considers the communication delay, completes the fault analysis and isolation, and sends the accident handling information and communication. Time delay, the centralized FA at the main station of the distribution network monitors the information processed by the distributed FA; when it is judged that the fault is a simple fault, the distributed FA considers the communication delay to locate the fault, isolate the fault and restore power to the non-faulty area. The FA is used as a backup; when the fault is judged to be a complex fault, the distributed FA considers the communication delay to locate and isolate the fault, and the restoration of the non-faulty area is completed by the centralized FA of the main power supply station. The method of the invention is adaptive to the communication time delay, the line fault processing is more reliable, the fault isolation range is more accurate, and the power supply reliability is improved.
附图说明Description of drawings
图1为考虑通信时延的一种分布式FA与主站集中式FA信息交互示意图。FIG. 1 is a schematic diagram of information interaction between a distributed FA and a master centralized FA considering communication delay.
具体实施方式Detailed ways
下面结合附图对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.
实施例Example
一种自适应通信时延的分布式FA与主站FA的协同控制方法，包括以下步骤：A coordinated control method of a distributed FA and a master station FA with adaptive communication delay, comprising the following steps:
步骤一、建立考虑通信时延的智能分布式FA与主站FA交互模型；Step 1. Establish an interaction model between the intelligent distributed FA and the master station FA considering the communication delay;
所述步骤一包括以下步骤：The first step includes the following steps:
1.1在分布式FA和主站集中式FA数据交互的逻辑节点增加通信时延描述模型，用于描述逻辑节点数据的时效性；1.1 A communication delay description model is added to the logical nodes where the distributed FA and the centralized FA data of the main station interact, which is used to describe the timeliness of the logical node data;
1.2在智能分布式FA和主站FA中交互的各种不同故障类型模型增加通信时延模型，表述各种不同故障类型的时效性。1.2 The communication delay model is added to the various fault type models interacting in the intelligent distributed FA and the master station FA to express the timeliness of various fault types.
其中，所述在逻辑节点模型、故障类型模型中增加的通信时延模型均基于IEC61850标准进行建模。Wherein, the communication delay models added in the logical node model and the fault type model are all modeled based on the IEC61850 standard.
采用面向对象的建模技术，定义统一建模抽象通信服务接口ACSI(AbstractCommunication Service Interface)中增加相互通信时延模型，在数据交互过程中传送通信时延数据。Using the object-oriented modeling technology, the unified modeling abstract communication service interface ACSI (Abstract Communication Service Interface) is defined to add the mutual communication delay model, and the communication delay data is transmitted in the data exchange process.
步骤二、计及通信时延的分布式FA与主站FA协同控制；Step 2: Coordinated control of distributed FA and master station FA taking into account the communication delay;
所述步骤二包括以下步骤：The second step includes the following steps:
分布式FA与主站FA协同控制，考虑分布式FA终端之间的通信延时和分布式FA终端与主站之间的通信时延，进行故障分析和故障处理，包括：The distributed FA and the master station FA are controlled cooperatively, considering the communication delay between the distributed FA terminals and the communication delay between the distributed FA terminal and the master station, and carry out fault analysis and troubleshooting, including:
2.1故障分析为简单故障时，分布式FA终端之间交互信息，通信时延小于20ms时，交互数据有效，分布式FA进行故障定位、隔离，主站FA负责非故障区域转供操作。2.1 When the fault is analyzed as a simple fault, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the exchanged data is valid. The distributed FA performs fault location and isolation, and the master station FA is responsible for the transfer operation in the non-faulty area.
2.2故障分析为复杂故障时，分布式FA终端之间交互信息，通信时延小于20ms时，交互数据有效，分布式FA进行故障定位、隔离，主站FA提供监视、备用纠错手段。2.2 When the fault analysis is a complex fault, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the exchanged data is valid. The distributed FA performs fault location and isolation, and the master station FA provides monitoring and backup error correction means.
其中，简单故障按照2.1所述的考虑通信时延的协同规则进行数据交互具体为：Among them, the data exchange of simple faults according to the coordination rules considering communication delay described in 2.1 is as follows:
3.1线路发生故障时，分布式FA终端之间交互信息，通信时延小于20ms时，分布式FA终端完成故障隔离且生成事故处理信息，然后将前述的包括通信时延信息在内的一致性信号模型上送至配电主站；3.1 When the line fails, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the distributed FA terminal completes fault isolation and generates accident handling information, and then transmits the aforementioned consistency signal including the communication delay information. The model is sent to the main power distribution station;
3.2主站集中式FA除了接收到传统的过流信号和开关分闸信号之外，通过现有通信规约还接收分布式FA上送的事故处理信息和通信时延信息；3.2 In addition to receiving the traditional overcurrent signal and switch opening signal, the centralized FA of the main station also receives the accident handling information and communication delay information sent by the distributed FA through the existing communication protocol;
3.3主站根据事故处理信息的描述及时延信息，判定出分布式FA处理的正确性，主站集中式FA及时进行后备纠错处理。3.3 The master station determines the correctness of the distributed FA processing according to the description and delay information of the accident processing information, and the centralized FA of the master station performs backup error correction processing in time.
复杂故障，按照2.2所述的考虑通信时延的协同规则进行数据交互具体为：For complex faults, the data exchange is carried out according to the coordination rules that consider the communication delay described in 2.2. Specifically:
3.4线路发生故障时，分布式FA终端之间交互信息，通信时延小于20ms时，分布式FA终端完成故障隔离且生成事故处理信息，然后将前述的包括通信时延信息在内的一致性信号模型上送至配电主站；3.4 When the line fails, the distributed FA terminals exchange information. When the communication delay is less than 20ms, the distributed FA terminal completes fault isolation and generates accident handling information, and then transmits the aforementioned consistency signal including the communication delay information. The model is sent to the main power distribution station;
3.5主站集中式FA除了接收到传统的过流信号和开关分闸信号之外，通过现有通信规约还接收分布式FA上送的事故处理信息和通信时延信息；3.5 In addition to receiving the traditional overcurrent signal and switch opening signal, the centralized FA of the main station also receives the accident handling information and communication delay information sent by the distributed FA through the existing communication protocol;
3.6主站根据事故处理信息的描述及时延信息，判定出分布式FA处理的正确性，针对接收到的事故处理信息分析非故障区域负荷转供最优的恢复路径，完成故障恢复处理。3.6 The master station determines the correctness of distributed FA processing according to the description and delay information of the accident processing information, analyzes the load transfer in the non-faulty area according to the received accident processing information and provides the optimal recovery path, and completes the fault recovery processing.
步骤三、通信时延不稳定时，分布式FA与主站FA协同控制策略自适应调整。Step 3: When the communication delay is unstable, the distributed FA and the master station FA coordinate control strategy to adjust adaptively.
所述步骤三包括以下步骤：The third step includes the following steps:
通信时延不稳定时，分布式FA与主站FA协同控制策略自适应调整，具体包括：When the communication delay is unstable, the coordinated control strategy of the distributed FA and the master station FA is adjusted adaptively, including:
4.1分布式FA终端之间通信中断时，终端闭锁分布式FA功能，线路发生故障时，分布式FA终端不对线路故障进行处理，将自身采集到的信息上送主站，主站集中式FA综合终端上送的信号进行故障分析和处理；4.1 When the communication between the distributed FA terminals is interrupted, the terminal blocks the distributed FA function. When the line fails, the distributed FA terminal does not process the line failure, and sends the information collected by itself to the master station, and the master station centralized FA synthesis Perform fault analysis and processing on the signal sent by the terminal;
4.2分布式FA终端之间通信时延超过20ms但未中断时，线路发生故障，分布式FA终端监测到过流信息时，控制开关进行快速故障隔离，当延时收到相邻终端的信息后再进行综合判断，根据判断结果进行纠错，如果故障在自己管辖范围内，则动作正确，并将处理信息上送主站，主站FA进行监视处理；如果故障发生在自己的管辖范围外，则进行纠错处理，恢复该段区域供电。4.2 When the communication delay between distributed FA terminals exceeds 20ms but is not interrupted, the line is faulty. When the distributed FA terminal detects the overcurrent information, the control switch performs rapid fault isolation. When the delay receives the information of the adjacent terminal Then make a comprehensive judgment, and correct the error according to the judgment result. If the fault is within the scope of its own jurisdiction, the action is correct, and the processing information will be sent to the master station, and the master station FA will monitor and process it; if the fault occurs outside the scope of its own jurisdiction, Then carry out error correction processing to restore the power supply in this section.
4.3分布式FA终端与主站之间通信中断时，但相互之间通信小于20ms时，线路发生故障时不影响分布式FA的故障分析和处理，待通信恢复后，将处理信息上送主站，主站FA进行监视处理。4.3 When the communication between the distributed FA terminal and the master station is interrupted, but the mutual communication is less than 20ms, the fault analysis and processing of the distributed FA will not be affected when the line fails. After the communication is restored, the processing information will be sent to the master station. , the master station FA performs monitoring processing.
上面结合附图对本发明的实施方式作了详细说明，但是本发明并不限于上述实施方式，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下做出各种变化。The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and can also be made within the scope of knowledge possessed by those of ordinary skill in the art without departing from the purpose of the present invention. Various changes.
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flows of the flowcharts and/or the block or blocks of the block diagrams.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.
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