CN103001193A - Centralized feeder automation control method for demarcation fault processing - Google Patents
Centralized feeder automation control method for demarcation fault processingDownload PDFInfo
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Abstract
Translated fromChineseDescription
Translated fromChinese技术领域technical field
本发明涉及配电自动化技术领域，具体地说是一种用于分界故障处理的集中型馈线自动化控制方法。The invention relates to the technical field of power distribution automation, in particular to a centralized feeder automation control method for boundary fault processing.
背景技术Background technique
随着我国智能配电网建设的不断深入，城市配电网将逐步实现馈线自动化，在配电线路发生相间短路故障的情况下，能够实现故障点的快速定位、隔离和非故障区段的快速恢复供电。而经调查表明，用户设备故障能够占到配网故障的70%以上，用户分界开关因能够有效切除用户故障而得到了大范围的使用。With the continuous deepening of the construction of my country's smart distribution network, the urban distribution network will gradually realize the automation of feeders. Restore power. According to the survey, user equipment failures can account for more than 70% of distribution network failures, and user boundary switches have been widely used because they can effectively remove user failures.
发明人通过对分界开关与馈线自动化的兼容性的分析发现：当发生单相接地故障时，分界开关能够自动隔离用户故障，不会对馈线自动化产生影响；当发生相间短路故障时，分界开关与电压-时间型或带有重合闸的集中型馈线自动化的配合，不需要对配电自动化主站及开关定值进行修改，即可实现用户故障的自动隔离；当分界开关与不带重合闸的集中型馈线自动化的配合，则需要修改主站控制方法，否则会造成分界开关两侧分段开关跳闸闭锁，扩大停电范围。Through the analysis of the compatibility between the boundary switch and feeder automation, the inventor found that: when a single-phase ground fault occurs, the boundary switch can automatically isolate the user fault without affecting the feeder automation; when a phase-to-phase short circuit fault occurs, the boundary switch and With the cooperation of voltage-time type or centralized feeder automation with reclosing, automatic isolation of user faults can be realized without modifying the distribution automation master station and switch settings; For the cooperation of centralized feeder automation, it is necessary to modify the control method of the main station, otherwise, the section switches on both sides of the boundary switch will be tripped and locked, and the scope of power failure will be expanded.
基于上述问题提出了一种用于分界故障处理的集中型馈线自动化控制方法，运用该方法能够很好的解决分界开关与集中型馈线自动化的兼容性问题。Based on the above problems, a centralized feeder automation control method for boundary fault processing is proposed. Using this method can well solve the compatibility problem between boundary switches and centralized feeder automation.
发明内容Contents of the invention
本发明提供了一种用于分界故障处理的集中型馈线自动化控制方法，，有效解决了集中型馈线自动化与分界开关的兼容性问题，避免事故停电范围扩大。The invention provides a centralized feeder automation control method for boundary fault processing, which effectively solves the compatibility problem between the centralized feeder automation and the boundary switch, and avoids the expansion of the power outage range due to accidents.
为了解决上述问题，本发明采用以下技术方案：一种用于分界故障处理的集中型馈线自动化控制方法，可用于集中型馈线自动化系统解决分界开关与集中型馈线自动化的兼容性问题，其特征在于，In order to solve the above problems, the present invention adopts the following technical solutions: a centralized feeder automation control method for boundary fault processing, which can be used in the centralized feeder automation system to solve the compatibility problem between the boundary switch and the centralized feeder automation, which is characterized in that ,
所述集中型馈线自动化系统包括：The centralized feeder automation system includes:
在每个变电站的输出端设置一个变电站出线断路器，且所述的每个变电站控制一条配电线路；A substation outlet circuit breaker is set at the output end of each substation, and each substation controls a power distribution line;
不同的配电线路之间通过集中型联络开关连接，所述集中型联络开关在常态下处于打开状态；Different power distribution lines are connected through a centralized tie switch, and the centralized tie switch is in an open state under normal conditions;
在配电主干线路上设置有若干集中型分段开关，在每一用户的分支配电线路中设置一个分界开关，所述的集中型分段开关和分界开关分别与配电自动化主站形成通信连接；Several centralized section switches are set on the power distribution main line, and a boundary switch is set in each user's branch distribution line. The centralized section switch and the boundary switch form communication with the distribution automation master station respectively. connect;
所述的方法包括以下过程：The described method includes the following processes:
配电自动化主站的系统设置：在故障处理程序启动前的T时间中，配电自动化主站实时监测分界开关与集中型分段开关故障报警信号，若监测到分界开关报警信号，T时间后向变电站出线断路器发出“遥控合闸”命令，恢复供电；若T时间内，未接收到分界开关报警信号，启动集中型故障处理程序；System setting of the distribution automation master station: During the T time before the start of the fault handling program, the distribution automation master station monitors the fault alarm signal of the boundary switch and the centralized section switch in real time. If the boundary switch alarm signal is detected, after T time Send the "remote control closing" command to the outlet circuit breaker of the substation to restore the power supply; if the alarm signal of the boundary switch is not received within T time, start the centralized fault handling procedure;
故障区域隔离：当某用户发生相间短路故障的同时，变电站出线断路器保护动作跳闸，该用户的分界开关跳闸并闭锁，实现故障用户的隔离，该用户所在的配电线上的全部集中型分段开关检测到故障电流发出过流信息，分界开关与集中型分段开关会同时将故障告警信号上送至配电自动化主站，主站系统生成事件名；Fault area isolation: When a phase-to-phase short-circuit fault occurs in a certain user, the protection action of the substation outlet circuit breaker trips, and the boundary switch of the user trips and is locked to realize the isolation of the faulty user. All centralized distribution lines on the distribution line where the user is located The section switch detects the fault current and sends overcurrent information, the boundary switch and the centralized section switch will simultaneously send the fault alarm signal to the master station of distribution automation, and the master station system generates an event name;
非故障区域恢复供电：配电自动化主站在变电站保护跳闸后T时间内监测到该用户分界开关故障报警信号，T时间后不再启动集中型馈线自动化故障处理程序，直接向变电站出线断路器发出“遥控合闸”命令，恢复非故障线路供电。Restoration of power supply in non-faulty areas: The distribution automation master station monitors the fault alarm signal of the user boundary switch within T time after the substation protection trips, and will not start the centralized feeder automation fault processing program after T time, and send it directly to the substation outlet circuit breaker "Remote closing" command to restore the power supply of non-fault lines.
优选的，所述的T时间为30秒。Preferably, the T time is 30 seconds.
本发明具有以下优点：本发明实现步骤简单，不仅能快速实现对用户相间短路故障的处理，而且解决了在处理用户相间短路故障过程中集中型馈线自动化与分界开关的兼容性问题，避免事故停电范围扩大，提高了输电线路的安全性。The present invention has the following advantages: the implementation steps of the present invention are simple, not only can quickly realize the processing of user phase-to-phase short-circuit faults, but also solve the compatibility problem between centralized feeder automation and boundary switches in the process of processing user-phase short-circuit faults, and avoid power outages due to accidents The range is expanded and the safety of the transmission line is improved.
附图说明Description of drawings
图1是本发明的实现步骤的流程图；Fig. 1 is the flowchart of the implementation steps of the present invention;
图2是本发明的一种实施例的线路图。Fig. 2 is a circuit diagram of an embodiment of the present invention.
具体实施方式Detailed ways
本发明提供的一种用于分界故障处理的集中型馈线自动化控制方法，可用于集中型馈线自动化系统解决分界开关与集中型馈线自动化的兼容性问题，其特征在于，A centralized feeder automation control method for boundary fault processing provided by the present invention can be used in a centralized feeder automation system to solve the compatibility problem between a boundary switch and a centralized feeder automation. It is characterized in that:
所述集中型馈线自动化系统包括：The centralized feeder automation system includes:
在每个变电站的输出端设置一个变电站出线断路器，且所述的每个变电站控制一条配电线路；A substation outlet circuit breaker is set at the output end of each substation, and each substation controls a power distribution line;
不同的配电线路之间通过集中型联络开关连接，所述集中型联络开关在常态下处于打开状态；Different power distribution lines are connected through a centralized tie switch, and the centralized tie switch is in an open state under normal conditions;
在配电主干线路上设置有若干集中型分段开关，在每一用户的分支配电线路中设置一个分界开关，所述的集中型分段开关和分界开关分别与配电自动化主站形成通信连接；Several centralized section switches are set on the power distribution main line, and a boundary switch is set in each user's branch distribution line. The centralized section switch and the boundary switch form communication with the distribution automation master station respectively. connect;
如图1所示，本发明所述的一种用于分界故障处理的集中型馈线自动化控制方法包括以下过程：As shown in Figure 1, a centralized feeder automatic control method for demarcation fault processing according to the present invention includes the following processes:
配电自动化主站的系统设置：在故障处理程序启动前的T时间中，配电自动化主站实时监测分界开关与集中型分段开关故障报警信号，若监测到分界开关报警信号，T时间后向变电站出线断路器发出“遥控合闸”命令，恢复供电；若T时间内，未接收到分界开关报警信号，启动集中型故障处理程序；System setting of the distribution automation master station: During the T time before the start of the fault handling program, the distribution automation master station monitors the fault alarm signal of the boundary switch and the centralized section switch in real time. If the boundary switch alarm signal is detected, after T time Send the "remote control closing" command to the outlet circuit breaker of the substation to restore the power supply; if the alarm signal of the boundary switch is not received within T time, start the centralized fault handling procedure;
故障区域隔离：当某用户发生相间短路故障的同时，变电站出线断路器保护动作跳闸，该用户的分界开关跳闸并闭锁，实现故障用户的隔离，该用户所在的配电线上的全部集中型分段开关检测到故障电流发出过流信息，分界开关与集中型分段开关会同时将故障告警信号上送至配电自动化主站，主站系统生成事件名；Fault area isolation: When a phase-to-phase short-circuit fault occurs in a certain user, the protection action of the substation outlet circuit breaker trips, and the boundary switch of the user trips and is locked to realize the isolation of the faulty user. All centralized distribution lines on the distribution line where the user is located The section switch detects the fault current and sends overcurrent information, the boundary switch and the centralized section switch will simultaneously send the fault alarm signal to the master station of distribution automation, and the master station system generates an event name;
非故障区域恢复供电：配电自动化主站在变电站保护跳闸后T时间内监测到该用户分界开关故障报警信号，T时间后不再启动集中型馈线自动化故障处理程序，直接向变电站出线断路器发出“遥控合闸”命令，恢复非故障线路供电。Restoration of power supply in non-faulty areas: The distribution automation master station monitors the fault alarm signal of the user boundary switch within T time after the substation protection trips, and will not start the centralized feeder automation fault processing program after T time, and send it directly to the substation outlet circuit breaker "Remote closing" command to restore the power supply of non-fault lines.
图2是本发明的一种实施例的线路图，下面结合图1和图2来具体说明本发明的实施效果。Fig. 2 is a circuit diagram of an embodiment of the present invention, and the implementation effect of the present invention will be specifically described below in conjunction with Fig. 1 and Fig. 2 .
在图2中，线路1采用集中型馈线自动化模式，CB1为线路1变电站出线开关，F001-F003为线路1集中型分段开关，FB001-FB003为负荷开关型柱上用户分界开关，线路1与线路2通过联络开关L1形成联络。假设位于用户3的F1点发生相间短路故障，则具体的处理步骤为：In Figure 2, line 1 adopts the centralized feeder automation mode, CB1 is the substation outlet switch of line 1, F001-F003 is the centralized section switch of line 1, and FB001-FB003 is the load switch pole-mounted user boundary switch, line 1 and Line 2 is connected through tie switch L1. Assuming that a phase-to-phase short-circuit fault occurs at point F1 of user 3, the specific processing steps are as follows:
（1）F1点发生相间短路故障，变电站出线断路器CB1保护动作跳闸，分段开关F001、F002、F003检测到故障电流并将故障告警信号上送至配电自动化主站系统，主站系统生成事件名。分界开关FB003检测到故障，待CB1跳闸，检测无故障电流和电压后，FB003分闸闭锁，隔离用户故障，之后将分界开关故障报警信号上传至主站。(1) A phase-to-phase short circuit fault occurs at point F1, and the protection action of the outgoing line circuit breaker CB1 of the substation trips. The section switches F001, F002, and F003 detect the fault current and send the fault alarm signal to the master station system of distribution automation. The master station system generates event name. The boundary switch FB003 detects a fault. After CB1 trips and detects no fault current and voltage, FB003 opens and locks to isolate the user's fault, and then uploads the boundary switch fault alarm signal to the master station.
（2）因主站在变电站保护跳闸后30s内监测到分界开关故障报警信号，因此，30s后不再启动集中型馈线自动化故障处理程序，直接向变电站出线断路器发出“遥控合闸”命令，恢复非故障线路供电，从而避免了传统集中型馈线自动化控制方法因与分界开关的兼容性问题，导致的故障停电范围扩大。(2) Since the main station monitors the fault alarm signal of the boundary switch within 30s after the protection trip of the substation, therefore, after 30s, the centralized feeder automatic fault processing program will not be started, and the "remote control closing" command will be issued directly to the outgoing circuit breaker of the substation. The power supply of non-fault lines is restored, thereby avoiding the expansion of the scope of fault power outages caused by the compatibility of the traditional centralized feeder automation control method with the boundary switch.
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| CN108054739A (en)* | 2017-12-18 | 2018-05-18 | 广东电网有限责任公司珠海供电局 | A kind of overhead transmission line feeder automation method and system based on negative-sequence current |
| CN110854843A (en)* | 2019-10-15 | 2020-02-28 | 保定市冀能电力自动化设备有限公司 | Control calculation method for metering and fault protection boundary switch controller of intelligent power distribution network |
| CN110854843B (en)* | 2019-10-15 | 2023-08-18 | 保定市冀能电力自动化设备有限公司 | Intelligent power distribution network metering and fault protection demarcation switch controller control calculation method |
| CN112993951A (en)* | 2021-03-30 | 2021-06-18 | 国网江西省电力有限公司上饶供电分公司 | Rapid power distribution network system fault removing device and method |
| WO2023070995A1 (en)* | 2021-10-27 | 2023-05-04 | 保定钰鑫电气科技有限公司 | Method for processing inter-phase short circuit of dual-power three-phase power system |
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