CN102354977A - Feeder fault handling method - Google Patents
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Abstract
本发明介绍了一种馈线故障处理方法，该方法为下述步骤：(1)在线搜索，馈线故障定位；(2)网络拓扑分析，得出结论；(3)找到故障所在区段。(4)搜索故障区段的边界开关，制定故障隔离方案；(5)划定非故障停电区域；(6)制定故障上游与故障下游停电区域恢复供电方案；(7)对下游恢复方案进行安全性评价；(8)依据步骤(7)所获安全性评价执行上述各方案。本方法，(1)适用于任意接线方式配电网的馈线自动化建设；(2)实用性强，无需配网设备的阻抗参数，无需调用潮流计算模块；(3)对非故障区段可分开进行供电恢复处理，最大可能缩小停电范围和减少停电时间。The invention introduces a feeder fault processing method, which comprises the following steps: (1) online search, feeder fault location; (2) network topology analysis, drawing conclusions; (3) finding the section where the fault is located. (4) Search for the boundary switch of the fault section, and formulate a fault isolation plan; (5) Delineate the non-fault outage area; (6) Formulate a power supply recovery plan for the fault upstream and fault downstream power outage areas; (7) Safeguard the downstream recovery plan (8) Execute the above programs according to the safety evaluation obtained in step (7). This method, (1) is suitable for the automatic construction of feeder lines in distribution networks with any wiring mode; (2) is practical and does not require impedance parameters of distribution network equipment, and does not need to call power flow calculation modules; (3) can be separated for non-faulty sections Perform power supply recovery processing to minimize the scope and duration of power outages.
Description
技术领域 technical field
本发明属于电气工程技术领域，尤其涉及一种适用于配电自动化系统的馈线故障处理方法。The invention belongs to the technical field of electrical engineering, and in particular relates to a feeder fault processing method suitable for a power distribution automation system.
背景技术 Background technique
馈线自动化是配电自动化系统的核心功能。实现了馈线自动化，可以在馈线发生故障时缩小故障停电范围，减少故障导致的停电时间，从而提高供电可靠性。馈线故障处理方法是实现馈线自动化的主要手段，其核心问题是指如何实现馈线故障定位、如何隔离故障和如何恢复非故障区域供电，简称故障的诊断、定位、隔离和恢复。传统馈线故障处理方法一般建立在潮流计算模块上，馈线故障处理模块与配网潮流计算等高级应用模块耦合度较大，增加了馈线故障处理的复杂性，降低了馈线故障处理的可靠性，影响了馈线故障处理的实用性。此外，由于配网设备种类繁多，设备参数获取十分困难，最终导致配网潮流计算结果与实际情况差别偏大，影响了馈线故障处理的可靠性和效率。Feeder automation is the core function of distribution automation system. The feeder automation is realized, which can reduce the power outage scope and reduce the power outage time caused by the fault, thereby improving the reliability of power supply. The feeder fault handling method is the main means to realize feeder automation. The core problem is how to locate the feeder fault, how to isolate the fault and how to restore the power supply in the non-fault area, referred to as fault diagnosis, location, isolation and recovery. The traditional feeder fault processing method is generally established on the power flow calculation module. The feeder fault processing module is highly coupled with advanced application modules such as distribution network power flow calculation, which increases the complexity of feeder fault processing, reduces the reliability of feeder fault processing, and affects The practicability of feeder fault handling is improved. In addition, due to the wide variety of distribution network equipment, it is very difficult to obtain equipment parameters, which eventually leads to a large difference between the distribution network power flow calculation results and the actual situation, which affects the reliability and efficiency of feeder fault handling.
发明内容 Contents of the invention
本发明要解决的技术问题是：针对传统馈线故障处理方法的缺陷，提供一种改进的馈线故障处理方法，使用该方法可以，The technical problem to be solved by the present invention is to provide an improved feeder fault processing method for the defects of the traditional feeder fault processing method, using this method,
(1)、解除馈线故障处理模块与配网潮流计算模块间的耦合关系；(1) Remove the coupling relationship between the feeder fault processing module and the distribution network power flow calculation module;
(2)、改进现有的隔离方案与恢复方案的执行逻辑，在故障隔离部分成功时，可以执行部分恢复方案，提高供电恢复的灵活性、快速性。(2) Improve the execution logic of the existing isolation scheme and recovery scheme. When the fault isolation is partially successful, a partial recovery scheme can be executed to improve the flexibility and speed of power supply recovery.
本发明的技术解决方案是：上述一种馈线故障处理方法是为下述步骤：The technical solution of the present invention is: above-mentioned a kind of feeder fault processing method is as following steps:
(1)、使用馈线故障处理服务器在线搜索，待该馈线故障处理服务器接收到FTU(英文“Feeder Terminal Unit”的缩写，中文译文为“馈线终端单元”)上送的故障信息或变电站内RTU(英文“Remote Terminal Unit”的缩写，中文译文为“远方终端单元”)上送的馈线出口开关保护动作信息，等待10～300秒。如果在该设定等待时间内收到新的故障信息或馈线出口开关保护动作信息，即令等待计时归零并重新开始累计等待时间。如果在设定等待时间内未收到新的故障信息或馈线出口开关保护动作信息，使用常规方法进行馈线故障定位：(1) Use the feeder fault processing server to search online, and wait for the feeder fault processing server to receive the fault information sent by FTU (abbreviation of "Feeder Terminal Unit" in English, and the Chinese translation is "feeder terminal unit") or the RTU in the substation ( The abbreviation of "Remote Terminal Unit" in English, the Chinese translation is "remote terminal unit"), and the protection action information of the feeder outlet switch is sent, waiting for 10 to 300 seconds. If a new fault message or feeder exit switch protection action message is received within the set waiting time, the waiting timer is reset to zero and the accumulated waiting time is restarted. If no new fault information or feeder outlet switch protection action information is received within the set waiting time, use the conventional method to locate the feeder fault:
(2)、依据故障发生前馈线内开关和馈线出口开关状态的记录，使用常规方法进行网络拓扑分析，得出网络拓扑分析结论；(2), according to the record of the switch in the feeder line and the switch state of the feeder line outlet before the fault occurs, use the conventional method to analyze the network topology, and draw the conclusion of the network topology analysis;
(3)、依据步骤(1)收到的FTU上送的故障信息或变电站内RTU上送的馈线出口开关保护动作信息和步骤(2)所获网络拓扑分析的结论，使用常规方法进行故障定位处理，得到故障定位处理结果即找到故障所在区段。配电网开环运行时，只要相邻开关之间的区段检测到任何一个边界开关发出故障信息，则视该区段为故障区段实施上述故障定位处理。而在配电网闭环运行时不提供故障定位处理；(3) According to the fault information sent by the FTU received in step (1) or the feeder outlet switch protection action information sent by the RTU in the substation and the conclusion of the network topology analysis obtained in step (2), use conventional methods to locate the fault Processing, get the fault location processing result and find the section where the fault is located. When the distribution network is in open-loop operation, as long as a section between adjacent switches detects a fault message from any boundary switch, the section is regarded as a faulty section and the above-mentioned fault location processing is performed. However, it does not provide fault location processing during closed-loop operation of the distribution network;
(4)、依据步骤(3)所得到的故障定位结果即找到的故障所在区段，搜索该故障区段的边界开关，利用被搜索出的边界开关所携带的信息按常规方法制定故障隔离方案；(4), according to the fault location result obtained in step (3), namely the section where the fault is found, search for the boundary switch of the fault section, and use the information carried by the searched boundary switch to formulate a fault isolation scheme according to the conventional method ;
(5)、使用常规方法模拟执行步骤(4)所获故障隔离方案，模拟执行完毕，针对模拟执行结果使用常规方法进行网络拓扑分析，得出网络拓扑分析结论。然后，依据该网络拓扑分析结论，使用常规方法划定由故障上游停电区域和故障下游停电区域组成的非故障停电区域。其中，所述故障上游停电区域是指所述故障所在区域至所述馈线出口开关之间的停电区域；故障下游停电区域是指所述故障所在区域至所述边界开关之间的停电区域；(5) Using a conventional method to simulate the fault isolation scheme obtained in step (4), after the simulation is completed, use a conventional method to analyze the network topology based on the simulated execution result, and draw a network topology analysis conclusion. Then, according to the conclusion of the network topology analysis, a non-fault outage area composed of a fault upstream outage area and a fault downstream outage area is delineated using a conventional method. Wherein, the fault upstream power outage area refers to the power outage area between the fault area and the feeder outlet switch; the fault downstream power outage area refers to the power outage area between the fault area and the boundary switch;
(6)、搜索步骤(5)划定的故障上游停电区域所在馈线出口开关，利用被搜索出的馈线出口开关所携带的信息，使用常规方法制定故障上游停电区域恢复供电方案；搜索步骤(5)划定的故障下游停电区域的边界开关，利用被搜索出的边界开关所携带的信息，使用常规方法制定故障下游停电区域恢复供电方案；(6), search step (5) where the feeder outlet switch in the fault upstream blackout area is located, utilize the information carried by the feeder outlet switch that is searched out, use conventional methods to formulate the restoration power supply scheme for the fault upstream blackout area; search step (5) ) The boundary switch of the fault downstream power outage area delineated, using the information carried by the searched out boundary switch, using conventional methods to formulate the power supply recovery plan for the fault downstream power outage area;
(7)、对步骤(6)所获故障下游停电区域恢复供电方案，使用下游停电区域的待恢复负荷，转供馈线出口开关额定容量、当前电流值来对下游恢复方案进行安全性评价。如果待恢复负荷电流加上转供馈线当前电流小于转供馈线出口开关额定容量，则对下游恢复方案的安全性给予肯定的评价；否则，对下游恢复方案的安全性做出否定的评价；(7) For the recovery power supply scheme for the faulty downstream power outage area obtained in step (6), use the load to be restored in the downstream power outage area, the rated capacity of the feeder outlet switch, and the current current value to evaluate the safety of the downstream recovery scheme. If the load current to be restored plus the current current of the transfer feeder is less than the rated capacity of the outlet switch of the transfer feeder, then give a positive evaluation of the safety of the downstream restoration scheme; otherwise, make a negative evaluation of the safety of the downstream restoration plan;
(8)、依据步骤(7)所获安全性评价，即如果步骤(7)所获安全性评价是肯定的，使用常规方法执行步骤(4)所获故障隔离方案和步骤(6)所获故障上游停电区域恢复供电方案及步骤(6)所获故障下游停电区域恢复供电方案。如果步骤(7)所获安全性评价是否定的，使用常规方法执行步骤(4)所获故障隔离方案和步骤(6)所获故障上游停电区域恢复供电方案，放弃执行步骤(6)所获相应否定评价的故障下游停电区域恢复供电方案。(8), according to the safety evaluation obtained in step (7), that is, if the safety evaluation obtained in step (7) is affirmative, use conventional methods to perform the fault isolation scheme obtained in step (4) and obtained in step (6) The restoration power supply scheme of the fault upstream power outage area and the restoration power supply scheme of the fault downstream power outage area obtained in step (6). If the safety evaluation obtained in step (7) is negative, use conventional methods to implement the fault isolation scheme obtained in step (4) and the power supply restoration scheme for the fault upstream blackout area obtained in step (6), and abandon the implementation of step (6) Corresponding negative evaluation fault downstream blackout area recovery power supply scheme.
本发明的有益效果是：本方法，The beneficial effect of the present invention is: this method,
(1)、适用于任意接线方式配电网的馈线自动化建设；(1) It is suitable for the automatic construction of feeder lines in the distribution network of any wiring mode;
(2)、实用性强，无需配网设备的阻抗参数，无需调用潮流计算模块；(2) Strong practicability, no need for impedance parameters of distribution network equipment, no need to call power flow calculation module;
(3)、对处于故障上游和下游的非故障区段可以分开进行供电恢复处理，在部分故障隔离成功的情况下，可进行部分恢复，提高恢复处理的灵活性，尽最大可能缩小停电范围和减少停电时间；(3) The power supply recovery process can be performed separately for the non-faulty sections in the upstream and downstream of the fault. In the case of partial fault isolation, partial recovery can be performed to improve the flexibility of recovery processing and minimize the scope of power outages and Reduce power outage time;
(4)下游非故障区段恢复方案的评价采用转供馈线出口开关当前电流和额定容量，对调度员进行实际故障恢复操作时有很强的指导作用。(4) The evaluation of the recovery plan for the downstream non-fault section uses the current current and rated capacity of the outlet switch of the transfer feeder, which has a strong guiding role for the dispatcher in the actual fault recovery operation.
具体实施方式 Detailed ways
实施例1：Example 1:
(1)、使用馈线故障处理服务器在线搜索，待该馈线故障处理服务器接收到FTU上送的故障信息或变电站内RTU上送的馈线出口开关保护动作信息，等待10～300秒。如果在该设定等待时间内收到新的故障信息或馈线出口开关保护动作信息，即令等待计时归零并重新开始累计等待时间。(1) Use the feeder fault processing server to search online, and wait for 10 to 300 seconds after the feeder fault processing server receives the fault information sent by the FTU or the feeder outlet switch protection action information sent by the RTU in the substation. If a new fault message or feeder exit switch protection action message is received within the set waiting time, the waiting timer is reset to zero and the accumulated waiting time is restarted.
(2)、依据故障发生前馈线内开关和馈线出口开关状态的记录，使用常规方法进行网络拓扑分析，得出网络拓扑分析结论；(2), according to the record of the switch in the feeder line and the switch state of the feeder line outlet before the fault occurs, use the conventional method to analyze the network topology, and draw the conclusion of the network topology analysis;
(3)、依据步骤(1)收到的FTU上送的故障信息或变电站内RTU上送的馈线出口开关保护动作信息和步骤(2)所获网络拓扑分析的结论，使用常规方法进行故障定位处理，找到故障所在区段。(3) According to the fault information sent by the FTU received in step (1) or the feeder outlet switch protection action information sent by the RTU in the substation and the conclusion of the network topology analysis obtained in step (2), use conventional methods to locate the fault Processing, find the section where the fault is located.
(4)、依据步骤(3)找到的故障所在区段，搜索该故障区段的边界开关，利用被搜索出的边界开关所携带的信息按常规方法制定故障隔离方案；(4), according to the fault location section that step (3) finds, search the boundary switch of this fault section, utilize the information carried by the boundary switch that is searched out to formulate fault isolation scheme by conventional method;
(5)、使用常规方法模拟执行步骤(4)所获故障隔离方案，模拟执行完毕，针对模拟执行结果使用常规方法进行网络拓扑分析，得出网络拓扑分析结论。然后，依据该网络拓扑分析结论，使用常规方法划定由故障上游停电区域和故障下游停电区域组成的非故障停电区域；(5) Using a conventional method to simulate the fault isolation scheme obtained in step (4), after the simulation is completed, use a conventional method to analyze the network topology based on the simulated execution result, and draw a network topology analysis conclusion. Then, according to the network topology analysis conclusion, the non-fault outage area composed of the fault upstream outage area and the fault downstream outage area is delineated by conventional methods;
(6)、搜索步骤(5)划定的故障上游停电区域所在馈线出口开关，利用被搜索出的馈线出口开关所携带的信息，使用常规方法制定故障上游停电区域恢复供电方案；搜索步骤(5)划定的故障下游停电区域的边界开关，利用被搜索出的边界开关所携带的信息，使用常规方法制定故障下游停电区域恢复供电方案；(6), search step (5) where the feeder outlet switch in the fault upstream blackout area is located, utilize the information carried by the feeder outlet switch that is searched out, use conventional methods to formulate the restoration power supply scheme for the fault upstream blackout area; search step (5) ) The boundary switch of the fault downstream power outage area delineated, using the information carried by the searched out boundary switch, using conventional methods to formulate the power supply recovery plan for the fault downstream power outage area;
(7)、对步骤(6)所获故障下游停电区域恢复供电方案，使用下游停电区域的待恢复负荷，转供馈线出口开关额定容量、当前电流值来对下游恢复方案进行安全性评价。如果待恢复负荷电流加上转供馈线当前电流小于转供馈线出口开关额定容量，则对下游恢复方案的安全性给予肯定的评价；否则，对下游恢复方案的安全性做出否定的评价；(7) For the recovery power supply scheme for the faulty downstream power outage area obtained in step (6), use the load to be restored in the downstream power outage area, the rated capacity of the feeder outlet switch, and the current current value to evaluate the safety of the downstream recovery scheme. If the load current to be restored plus the current current of the transfer feeder is less than the rated capacity of the outlet switch of the transfer feeder, then give a positive evaluation of the safety of the downstream restoration scheme; otherwise, make a negative evaluation of the safety of the downstream restoration plan;
(8)、如果步骤(7)所获安全性评价是肯定的，使用常规方法执行步骤(4)所获故障隔离方案和步骤(6)所获故障上游停电区域恢复供电方案及步骤(6)所获故障下游停电区域恢复供电方案。如果步骤(7)所获安全性评价是否定的，使用常规方法执行步骤(4)所获故障隔离方案和步骤(6)所获故障上游停电区域恢复供电方案，放弃执行步骤(6)所获相应否定评价的故障下游停电区域恢复供电方案。(8) If the safety evaluation obtained in step (7) is affirmative, use the conventional method to execute the fault isolation scheme obtained in step (4) and the power supply restoration scheme and step (6) obtained in step (6) for the fault upstream power outage area The power supply restoration scheme for the blackout area in the downstream of the fault obtained. If the safety evaluation obtained in step (7) is negative, use conventional methods to implement the fault isolation scheme obtained in step (4) and the power supply restoration scheme for the fault upstream blackout area obtained in step (6), and abandon the implementation of step (6) Corresponding negative evaluation fault downstream blackout area recovery power supply scheme.
实施例2：Example 2:
(1)、使用馈线故障处理服务器在线搜索，待该馈线故障处理服务器接收到FTU上送的故障信息或变电站内RTU上送的馈线出口开关保护动作信息，等待10～300秒。如果在设定等待时间内未收到新的故障信息或馈线出口开关保护动作信息，使用常规方法进行馈线故障定位；(1) Use the feeder fault processing server to search online, and wait for 10 to 300 seconds after the feeder fault processing server receives the fault information sent by the FTU or the feeder outlet switch protection action information sent by the RTU in the substation. If no new fault information or feeder exit switch protection action information is received within the set waiting time, use the conventional method to locate the feeder fault;
步骤(2)～(8)同实施例1。Steps (2)-(8) are the same as in Example 1.
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Cited By (12)
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| CN102916431A (en) * | 2012-09-20 | 2013-02-06 | 中国电力科学研究院 | Assisted decision making method for load transfer in regional power grid |
| CN103605047A (en) * | 2013-11-29 | 2014-02-26 | 国家电网公司 | Power restoration monitoring system and method |
| CN103746376A (en) * | 2014-01-21 | 2014-04-23 | 重庆大学 | Power distribution network dynamic power restoration method based on load curve |
| CN103872688A (en) * | 2014-03-31 | 2014-06-18 | 国网上海市电力公司 | Automatic protecting method for double-annular-ring four-power-supply structure feeder |
| CN104751300A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Method and system for quick emergency handling of power outage of transformer substation |
| CN104882867A (en) * | 2014-02-27 | 2015-09-02 | 国家电网公司 | Power distribution network self-healing control method and system |
| CN106099926A (en) * | 2016-08-25 | 2016-11-09 | 东方电子股份有限公司 | A kind of power distribution network secondary based on the rejection of trunk supply path turns method of supplying power to |
| CN106229975A (en) * | 2016-08-25 | 2016-12-14 | 东方电子股份有限公司 | A kind of distribution network load based on path node difference matching turns for method for splitting |
| CN106253252A (en) * | 2016-08-27 | 2016-12-21 | 国网山东省电力公司蓬莱市供电公司 | A kind of feeder automation fault self-recovery method of high fault tolerance |
| CN106872854A (en) * | 2017-01-26 | 2017-06-20 | 南京陇源汇能电力科技有限公司 | The fault handling method of power distribution automation equipment in a kind of distribution system |
| CN108493928A (en) * | 2018-03-28 | 2018-09-04 | 国电南瑞科技股份有限公司 | Distributed feeder automation distribution line topology ad hoc network method |
| CN111337787A (en) * | 2020-05-16 | 2020-06-26 | 广州思泰信息技术有限公司 | Remote detection device for primary and secondary fusion equipment of power distribution network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102916431B (en) * | 2012-09-20 | 2015-01-21 | 中国电力科学研究院 | Assisted decision making method for load transfer in regional power grid |
| CN102916431A (en) * | 2012-09-20 | 2013-02-06 | 中国电力科学研究院 | Assisted decision making method for load transfer in regional power grid |
| CN103605047B (en) * | 2013-11-29 | 2017-01-04 | 国家电网公司 | A kind of telegram in reply monitoring system and method |
| CN103605047A (en) * | 2013-11-29 | 2014-02-26 | 国家电网公司 | Power restoration monitoring system and method |
| CN103746376A (en) * | 2014-01-21 | 2014-04-23 | 重庆大学 | Power distribution network dynamic power restoration method based on load curve |
| CN103746376B (en) * | 2014-01-21 | 2015-09-09 | 重庆大学 | A dynamic power supply restoration method for distribution network based on load curve |
| CN104882867A (en) * | 2014-02-27 | 2015-09-02 | 国家电网公司 | Power distribution network self-healing control method and system |
| CN103872688A (en) * | 2014-03-31 | 2014-06-18 | 国网上海市电力公司 | Automatic protecting method for double-annular-ring four-power-supply structure feeder |
| CN104751300B (en) * | 2015-04-22 | 2018-05-15 | 国家电网公司 | A kind of quick emergency processing method of substation's power outage and system |
| WO2016169238A1 (en) * | 2015-04-22 | 2016-10-27 | 国网浙江省电力公司杭州供电公司 | Quick emergency processing method and system for power failure accident of transformer substation |
| CN104751300A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Method and system for quick emergency handling of power outage of transformer substation |
| CN106099926A (en) * | 2016-08-25 | 2016-11-09 | 东方电子股份有限公司 | A kind of power distribution network secondary based on the rejection of trunk supply path turns method of supplying power to |
| CN106229975A (en) * | 2016-08-25 | 2016-12-14 | 东方电子股份有限公司 | A kind of distribution network load based on path node difference matching turns for method for splitting |
| CN106099926B (en) * | 2016-08-25 | 2018-03-27 | 东方电子股份有限公司 | A kind of power distribution network based on the rejection of trunk supply path is secondary to turn method of supplying power to |
| CN106229975B (en) * | 2016-08-25 | 2018-06-08 | 东方电子股份有限公司 | A kind of distribution network load based on path node difference matching turns for method for splitting |
| CN106253252A (en) * | 2016-08-27 | 2016-12-21 | 国网山东省电力公司蓬莱市供电公司 | A kind of feeder automation fault self-recovery method of high fault tolerance |
| CN106872854A (en) * | 2017-01-26 | 2017-06-20 | 南京陇源汇能电力科技有限公司 | The fault handling method of power distribution automation equipment in a kind of distribution system |
| CN106872854B (en) * | 2017-01-26 | 2019-10-01 | 南京陇源汇能电力科技有限公司 | The fault handling method of power distribution automation equipment in a kind of distribution system |
| CN108493928A (en) * | 2018-03-28 | 2018-09-04 | 国电南瑞科技股份有限公司 | Distributed feeder automation distribution line topology ad hoc network method |
| CN111337787A (en) * | 2020-05-16 | 2020-06-26 | 广州思泰信息技术有限公司 | Remote detection device for primary and secondary fusion equipment of power distribution network |
| CN111337787B (en) * | 2020-05-16 | 2020-08-07 | 广州思泰信息技术有限公司 | Remote detection device for primary and secondary fusion equipment of power distribution network |
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