CN112183834A - Online generation and execution method and equipment for power grid accident handling plan - Google Patents

Online generation and execution method and equipment for power grid accident handling plan Download PDF

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CN112183834A
CN112183834A CN202010989361.9A CN202010989361A CN112183834A CN 112183834 A CN112183834 A CN 112183834A CN 202010989361 A CN202010989361 A CN 202010989361A CN 112183834 A CN112183834 A CN 112183834A
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voltage
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plan
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叶杰
卢晓明
钟秋添
徐郑崎
李德才
黄燕帼
肖荣洋
程华新
曹晶
王夏菁
吴益斌
朱志鑫
沈锦书
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State Grid Fujian Electric Power Co Ltd
Longyan Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Longyan Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Abstract

The invention relates to an online generation and execution method of a power grid accident disposal plan, which comprises the following steps: determining a lost electronic system according to the fault information; searching a complex electrical path; carrying out safe retrieval on all searched complex circuit paths; checking the complex circuit paths which pass the safe retrieval, and if at least one complex circuit path which passes the checking exists, selecting an optimal path according to a checking result; if the complex circuit path passing the verification does not exist, cutting off part of the load according to a general strategy, then searching the complex circuit path again according to the steps, carrying out safe retrieval and verification, and selecting an optimal path; generating a plan according to the optimal path; and automatically executing the plan.

Description

Online generation and execution method and equipment for power grid accident handling plan
Technical Field
The invention relates to a power grid accident handling plan online generation and execution method and equipment, and belongs to the technical field of power grid dispatching.
Background
The regional power grid is generally designed in a closed loop mode, operates in an open loop mode, is connected through a hot standby switch, and generally presents a radiation type structure. The power grid accident plan editor forecasts accident scenes according to the normal operation mode of the current power grid and conforms to the principle of 'one mode and one plan', and the power grid accident plan editor carries out station-by-station repair and edition. For example, 185 transformer substations of the Longyan power grid are required, the repair and compilation work consumes more than 300 working hours each year, the plan issue is usually not earlier than 5 months each year, the time and labor are wasted, the production practice and timeliness requirements are not met, and the main defects are summarized as follows: 1. the repair and compilation workload is large: the compilation, the check and the approval usually need more than two months. 2. Large space and breadth, and non-ideal propaganda and penetration effect: the selection of the complex circuit path of the monthly accident-reversal drilling regulator is greatly different from the pre-programmed plan under the line. 3. Timeliness and practicability do not meet the requirements: because the operation modes such as temporary wiring transaction, risk maintenance and the like can not be comprehensively considered by the pre-programmed accident plan, at least 35 parts of the adaptive temporary plan are repaired and programmed per year on average.
The invention patent publication No. CN111049131A entitled "method and system for generating a plan for online fault handling of regional power grid" discloses a technical scheme for generating a plan online according to fault information, but only discloses a principle of selecting an optimal path, and needs to manually execute the plan.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method and a device for online generation and execution of a power grid accident handling plan, which automatically generate and execute the plan according to a fault condition and select a re-routing path by integrating safety and economy.
The technical scheme of the invention is as follows:
the first technical scheme is as follows:
determining a power-off electronic system according to fault information, wherein the power-off electronic system comprises a source power-off station and a forced power-off station;
searching a complex circuit path, wherein the complex circuit path is communicated with a power transmission power supply and a power loss electronic system;
carrying out safe retrieval on all searched complex circuit paths, and abandoning complex circuit paths which do not pass the safe retrieval;
checking the complex circuit paths which pass the safe retrieval, and if at least one complex circuit path which passes the checking exists, selecting an optimal path according to a checking result; if the complex circuit path passing the verification does not exist, cutting off part of the load according to a general strategy, then searching the complex circuit path again according to the steps, carrying out safe retrieval and verification, and selecting an optimal path;
generating a plan according to the optimal path, wherein the plan comprises a list of devices to be automatically remotely controlled and operated with operation sequences;
and automatically executing a plan, and automatically executing the switch pulling-closing operation according to the operation sequence according to the list of the equipment to be automatically remotely controlled with the operation sequence.
Further, the fault information comprises accident transient process protection alarm, wave recording, switch deflection information, equipment protection signals and telemetering change data; the specific steps for determining the electronic system according to the fault information are as follows:
when a protection action signal and switch deflection are detected, starting a judgment program; after 20 seconds of delay, if the voltage amplitude of the bus is greater than 90% or the bus voltage is less than or equal to 0.2kV, judging that the source is a source voltage loss station;
and scanning all associated stations of the source voltage loss station, and if the associated stations have current and voltage 10S before the fault occurs and buses of the associated stations have no voltage after the fault occurs, determining that the station is forced to be voltage loss.
Further, the specific steps of searching the complex path are as follows:
determining a power transmission power supply associated with the power loss electronic system; and according to a breadth-first search algorithm or a depth-first search algorithm, with a source voltage loss station as a starting point and a trend block diagram connecting line as a path, gradually extending and searching to a power transmission power supply to obtain a plurality of repeated paths.
Further, the specific steps of securely retrieving all the complex paths are as follows:
checking whether a gate of a grounding knife in the region is disconnected; setting switches at each side of an ungrounded main transformer, a small hydropower line switch and a low-cycle action feeder switch to be in a hot standby state; disconnecting the line switch of the station at the side of the complex electric path; if the complex circuit path is powered from a low voltage level, the soft clamp mode needs to be changed.
Further, the verifying the content includes: supply capacity, total switch operation number, network loss and load shedding; the specific formula for selecting the optimal path according to the verification result is as follows:
Ochose＝min(O1,O2,…,Oi,…,OH),i＝1,2,…,H
Oi＝r1·Llengthi+r2·Pflowi+r3·ΔUi+r4·Cti
in the formula: o ischoseNumbering the selected paths, and H is the total number of generated paths; o isiFor a path selection factor, r1～r4Respectively the length L of the path ilengthiOverall tidal current PflowiVoltage deviation DeltaUiAnd total number of switch operations CtiThe weight of (a) is calculated,
Figure BDA0002690324820000031
the second technical scheme is as follows:
an online generation and execution device for a grid accident handling plan, comprising a memory and a processor, the memory storing instructions adapted to be loaded by the processor and to perform the steps of:
determining a power-off electronic system according to fault information, wherein the power-off electronic system comprises a source power-off station and a forced power-off station;
searching a complex circuit path, wherein the complex circuit path is communicated with a power transmission power supply and a power loss electronic system;
carrying out safe retrieval on all searched complex circuit paths, and abandoning complex circuit paths which do not pass the safe retrieval;
checking the complex circuit paths which pass the safe retrieval, and if at least one complex circuit path which passes the checking exists, selecting an optimal path according to a checking result; if the complex circuit path passing the verification does not exist, cutting off part of the load according to a general strategy, then searching the complex circuit path again according to the steps, carrying out safe retrieval and verification, and selecting an optimal path;
generating a plan according to the optimal path, wherein the plan comprises a list of devices to be automatically remotely controlled and operated with operation sequences;
and automatically executing a plan, and automatically executing the switch pulling-closing operation according to the operation sequence according to the list of the equipment to be automatically remotely controlled with the operation sequence.
Further, the fault information comprises accident transient process protection alarm, wave recording, switch deflection information, equipment protection signals and telemetering change data; the specific steps for determining the electronic system according to the fault information are as follows:
when a protection action signal and switch deflection are detected, starting a judgment program; after 20 seconds of delay, if the voltage amplitude of the bus is greater than 90% or the bus voltage is less than or equal to 0.2kV, judging that the source is a source voltage loss station;
and scanning all associated stations of the source voltage loss station, and if the associated stations have current and voltage 10S before the fault occurs and buses of the associated stations have no voltage after the fault occurs, determining that the station is forced to be voltage loss.
Further, the specific steps of searching the complex path are as follows:
determining a power transmission power supply associated with the power loss electronic system; and according to a breadth-first search algorithm or a depth-first search algorithm, with a source voltage loss station as a starting point and a trend block diagram connecting line as a path, gradually extending and searching to a power transmission power supply to obtain a plurality of repeated paths.
Further, the specific steps of securely retrieving all the complex paths are as follows:
checking whether a gate of a grounding knife in the region is disconnected; setting switches at each side of an ungrounded main transformer, a small hydropower line switch and a low-cycle action feeder switch to be in a hot standby state; disconnecting the line switch of the station at the side of the complex electric path; if the complex circuit path is powered from a low voltage level, the soft clamp mode needs to be changed.
Further, the verifying the content includes: the method comprises the following steps of (1) transfer capacity, network loss, load shedding, integral tide, voltage deviation and total number of switch operations; the specific formula for selecting the optimal path according to the verification result is as follows:
Ochose＝min(O1,O2,…,Oi,…,OH),i＝1,2,…,H
Oi＝r1·Llengthi+r2·Pflowi+r3·ΔUi+r4·Cti
in the formula: o ischoseNumbering the selected paths, and H is the total number of generated paths; o isiFor a path selection factor, r1～r4Respectively the length L of the path ilengthiOverall tidal current PflowiVoltage deviation DeltaUiAnd total number of switch operations CtiThe weight of (a) is calculated,
Figure BDA0002690324820000051
the invention has the following beneficial effects:
1. the invention automatically generates and executes the plan on line, thereby reducing the workload of the power grid staff; corresponding plans can be comprehensively and flexibly generated and executed according to the fault conditions, and the power recovery efficiency is improved;
2. the invention can autonomously select the weight of each parameter and select the optimal path according to different factors under different conditions; and a simple and reliable formula for selecting the optimal path is provided, the calculated amount is reduced, and the power recovery efficiency is improved.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Example one
Referring to fig. 1, an online generation and execution method of a power grid accident handling plan includes the following steps:
determining a power-off electronic system according to fault information, wherein the power-off electronic system comprises a source power-off station and a forced power-off station;
searching a complex circuit path, wherein the complex circuit path is communicated with a power transmission power supply and a power loss electronic system;
carrying out safe retrieval on all the complex circuit paths, and abandoning the complex circuit paths which do not pass the safe retrieval;
checking the complex circuit paths which pass the safe retrieval, and if at least one complex circuit path which passes the checking exists, selecting an optimal path according to a checking result; if the complex circuit path passing the verification does not exist, cutting off part of the load according to a general strategy, then searching the complex circuit path again according to the steps, carrying out safe retrieval and verification, and selecting an optimal path; the method comprises the following specific steps of cutting off part of the load according to a general strategy: firstly, cutting off partial loads according to the power supply capacity limit sequence table of the ultra-power grid, determining a non-power-restoration line according to the current-restoration line in turn by adopting a low-cycle according to an important user list and a low-cycle load reduction sequence table.
Generating a plan according to the optimal path, wherein the plan comprises a list of devices to be automatically remotely controlled and operated with operation sequences, and the method comprises the following specific steps: according to the supply path, automatically searching the equipment sequence required to be operated, and arranging according to the established accident handling logic sequence, namely generating the equipment sequence to be automatically remotely controlled and operated;
in this embodiment, the staff is also required to review the plan on the real-time plan interface, and the interface mainly includes four modules: 1. accident plan list: only when the faults happen together, the accident plan of the current fault is directly displayed; if the faults occur at the same time, double-clicking the corresponding accident plan name to enter a corresponding equipment list to be repressed, a transfer supply line list and an equipment sequence to be automatically remotely controlled; 2. list of devices to be repressed: the method comprises the following steps that a list of voltage loss equipment needing power supply is replied according to a preset plan; 3. transfer route list: displaying the name of a line through which the complex circuit path passes; 4. and (5) waiting for automatic remote control operation of equipment sequences.
And automatically executing a plan, and automatically executing the switch pulling-closing operation according to the operation sequence according to the list of the equipment to be automatically remotely controlled with the operation sequence.
Further, the fault information comprises accident transient process protection alarm, wave recording, switch deflection information, equipment protection signals and telemetering change data; the specific steps for determining the electronic system according to the fault information are as follows:
when a protection action signal and switch deflection are detected (when the following accidental conditions occur, the following accidental conditions are considered together, namely 1, a reclosing action signal, a switch on-off, a switch off-on and a switch on-off, 2, a bus coupler (switch off) or an incoming line spare power automatic switching action signal, and the switch is not deflected), starting a judgment program; after 20 seconds of delay, if the voltage amplitude of the bus is greater than 90% or the bus voltage is less than or equal to 0.2kV, judging that the source is a source voltage loss station;
scanning all associated stations of the source voltage loss station, if the associated stations have current and voltage 10S before the fault occurs and buses of the associated stations have no voltage after the fault occurs, judging that the associated stations are forced to be voltage loss stations, and finally generating a voltage loss station report.
Further, the specific steps of searching the complex path are as follows:
determining a power transmission power supply associated with the power loss electronic system; and according to a breadth-first search algorithm or a depth-first search algorithm, with a source voltage loss station as a starting point and a trend block diagram connecting line as a path, gradually extending and searching to a power transmission power supply to obtain a plurality of repeated paths.
Further, the complex circuit path should follow the following six prevention principles: 1. preventing non-synchronization; 2. preventing an operating overvoltage; 3. secondary fault impact of the main equipment is prevented; 4. preventing the impact of near zone faults; 5. preventing power transmission with ground wire; 6. prevent the remote control channel from being abnormal. Therefore, all complex circuit paths need to be retrieved safely, and the specific steps are as follows:
checking whether a gate of a grounding knife in the region is disconnected; setting switches at each side of an ungrounded main transformer, a small hydropower line switch and a low-cycle action feeder switch to be in a hot standby state; disconnecting the line switch of the station at the side of the complex electric path; if the complex circuit path is powered from a low voltage level, the soft clamp mode needs to be changed.
The method has the advantages that the scheme is automatically generated and executed on line, so that the workload of power grid workers is reduced; and can generate and execute corresponding plans comprehensively and flexibly according to the fault condition, thereby improving the power recovery efficiency.
Example two
Further, the verifying the content includes: the method comprises the following steps of (1) transfer capacity, network loss, load shedding, integral tide, voltage deviation and total number of switch operations; if the transfer capacity, network loss and load shedding of the complex circuit path do not reach the threshold values, the path is directly eliminated. Selecting an optimal path according to the following 4 principles: 1. the main transformer and the line in the control path are not overloaded; 2. the power transmission line is short in length and high in voltage; 3. the number of operation switches is small; 4. the whole tidal current is small. The formula for selecting the optimal path according to the verification result is as follows:
Ochose＝min(O1,O2,…,Oi,…,OH),i＝1,2,…,H
Oi＝r1·Llengthi+r2·Pflowi+r3·ΔUi+r4·Cti
in the formula: o ischoseNumbering the selected paths; h is the total number of generated paths; o isiSelecting a factor for the path; r is1～r4Respectively the length L of the path ilengthiOverall tidal current PflowiVoltage deviation DeltaUiAnd total number of switch operations CtiWeight of (2)
Figure BDA0002690324820000091
The embodiment has the advantages that the weight of each parameter can be selected autonomously according to different factors under different conditions, and the optimal path is selected; and a simple and reliable formula for selecting the optimal path is provided, the calculated amount is reduced, and the power recovery efficiency is improved. .
EXAMPLE III
Referring to fig. 1, an online generation and execution device for a grid accident handling plan comprises a memory and a processor, wherein the memory stores instructions, and the instructions are suitable for being loaded by the processor and executing the following steps:
determining a power-off electronic system according to fault information, wherein the power-off electronic system comprises a source power-off station and a forced power-off station;
searching a complex circuit path, wherein the complex circuit path is communicated with a power transmission power supply and a power loss electronic system;
carrying out safe retrieval on all the complex circuit paths, and abandoning the complex circuit paths which do not pass the safe retrieval;
checking the complex circuit paths which pass the safe retrieval, and if at least one complex circuit path which passes the checking exists, selecting an optimal path according to a checking result; if the complex circuit path passing the verification does not exist, cutting off part of the load according to a general strategy, then searching the complex circuit path again according to the steps, carrying out safe retrieval and verification, and selecting an optimal path; the method comprises the following specific steps of cutting off part of the load according to a general strategy: firstly, cutting off partial loads according to the power supply capacity limit sequence table of the ultra-power grid, determining a non-power-restoration line according to the current-restoration line in turn by adopting a low-cycle according to an important user list and a low-cycle load reduction sequence table.
Generating a plan according to the optimal path, wherein the plan comprises a list of devices to be automatically remotely controlled and operated with operation sequences, and the method comprises the following specific steps: according to the supply path, automatically searching the equipment sequence required to be operated, and arranging according to the established accident handling logic sequence, namely generating the equipment sequence to be automatically remotely controlled and operated;
in this embodiment, the staff is also required to review the plan on the real-time plan interface, and the interface mainly includes four modules: 1. accident plan list: only when the faults happen together, the accident plan of the current fault is directly displayed; if the faults occur at the same time, double-clicking the corresponding accident plan name to enter a corresponding equipment list to be repressed, a transfer supply line list and an equipment sequence to be automatically remotely controlled; 2. list of devices to be repressed: the method comprises the following steps that a list of voltage loss equipment needing power supply is replied according to a preset plan; 3. transfer route list: displaying the name of a line through which the complex circuit path passes; 4. and (5) waiting for automatic remote control operation of equipment sequences.
And automatically executing a plan, and automatically executing the switch pulling-closing operation according to the operation sequence according to the list of the equipment to be automatically remotely controlled with the operation sequence.
Further, the fault information comprises accident transient process protection alarm, wave recording, switch deflection information, equipment protection signals and telemetering change data; the specific steps for determining the electronic system according to the fault information are as follows:
when a protection action signal and switch deflection are detected (when the following accidental conditions occur, the following accidental conditions are considered together, namely 1, a reclosing action signal, a switch on-off, a switch off-on and a switch on-off, 2, a bus coupler (switch off) or an incoming line spare power automatic switching action signal, and the switch is not deflected), starting a judgment program; after 20 seconds of delay, if the voltage amplitude of the bus is greater than 90% or the bus voltage is less than or equal to 0.2kV, judging that the source is a source voltage loss station;
scanning all associated stations of the source voltage loss station, if the associated stations have current and voltage 10S before the fault occurs and buses of the associated stations have no voltage after the fault occurs, judging that the associated stations are forced to be voltage loss stations, and finally generating a voltage loss station report.
Further, the specific steps of searching the complex path are as follows:
determining a power transmission power supply associated with the power loss electronic system; and according to a breadth-first search algorithm or a depth-first search algorithm, with a source voltage loss station as a starting point and a trend block diagram connecting line as a path, gradually extending and searching to a power transmission power supply to obtain a plurality of repeated paths.
Further, the complex circuit path should follow the following six prevention principles: 1. preventing non-synchronization; 2. preventing an operating overvoltage; 3. secondary fault impact of the main equipment is prevented; 4. preventing the impact of near zone faults; 5. preventing power transmission with ground wire; 6. prevent the remote control channel from being abnormal. Therefore, all complex circuit paths need to be retrieved safely, and the specific steps are as follows:
checking whether a gate of a grounding knife in the region is disconnected; setting switches at each side of an ungrounded main transformer, a small hydropower line switch and a low-cycle action feeder switch to be in a hot standby state; disconnecting the line switch of the station at the side of the complex electric path; if the complex circuit path is powered from a low voltage level, the soft clamp mode needs to be changed.
The method has the advantages that the scheme is automatically generated and executed on line, so that the workload of power grid workers is reduced; and can generate and execute corresponding plans comprehensively and flexibly according to the fault condition, thereby improving the power recovery efficiency.
Example four
Further, the verifying the content includes: the method comprises the following steps of (1) transfer capacity, network loss, load shedding, integral tide, voltage deviation and total number of switch operations; if the transfer capacity, network loss and load shedding of the complex circuit path do not reach the threshold values, the path is directly eliminated. Selecting an optimal path according to the following 4 principles: 1. the main transformer and the line in the control path are not overloaded; 2. the power transmission line is short in length and high in voltage; 3. the number of operation switches is small; 4. the whole tidal current is small. The formula for selecting the optimal path according to the verification result is as follows:
Ochose＝min(O1,O2,…,Oi,…,OH),i＝1,2,…,H
Oi＝r1·Llengthi+r2·Pflowi+r3·ΔUi+r4·Cti
in the formula: o ischoseNumbering the selected paths; h is the total number of generated paths; o isiSelecting a factor for the path; r is1～r4Respectively the length L of the path ilengthiOverall tidal current PflowiVoltage deviation DeltaUiAnd total number of switch operations CtiThe weight of (a) is calculated,
Figure BDA0002690324820000121
the embodiment has the advantages that the weight of each parameter can be selected autonomously according to different factors under different conditions, and the optimal path is selected; and a simple and reliable formula for selecting the optimal path is provided, the calculated amount is reduced, and the power recovery efficiency is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1.一种电网事故处置预案在线生成与执行方法，其特征在于，包括以下步骤：1. An online generation and execution method for a power grid accident handling plan, characterized in that, comprising the following steps: 根据故障信息确定失电子系统，所述失电子系统包括源头失压站和被迫失压站；Determining a lost electronic system according to the fault information, the electronic lost system includes a source pressure loss station and a forced pressure loss station; 搜索复电路径，所述复电路径连通送电电源与失电子系统；Searching for a recovery path, the recovery path is connected to the power supply and the loss-of-electronic system; 对所有搜索到的复电路径进行安全检索，舍弃未通过安全检索的复电路径；Perform safety retrieval on all searched recovery paths, and discard the recovery paths that fail the safety retrieval; 对通过安全检索的复电路径进行校验，若存在至少一条通过校验的复电路径，则根据校验结果选取最优路径；若不存在通过校验的复电路径，则根据通用策略切除部分负荷后再按上述步骤重新搜索复电路径并进行安全检索和校验，选取最优路径；Verify the recovery path that has passed the security retrieval. If there is at least one recovery path that has passed the verification, select the optimal path according to the verification result; After partial load, follow the steps above to re-search for the recovery path and perform safety retrieval and verification to select the optimal path; 根据最优路径生成预案，所述预案包括带有操作序列的待自动遥控操作设备列表；generating a plan according to the optimal path, the plan including a list of devices to be automatically remotely operated with an operation sequence; 自动执行预案，根据所述带有操作序列的待自动遥控操作设备列表，按操作序列自动执行开关拉合操作。The plan is automatically executed, and according to the list of devices to be automatically remotely operated with the operation sequence, the switch pulling and closing operation is automatically executed according to the operation sequence. 2.根据权利要求1所述的一种电网事故处置预案在线生成与执行方法，其特征在于：所述故障信息包括事故暂态过程保告警、录波、开关变位信息、设备保护信号、遥测变化数据；所述根据故障信息确定失电子系统的具体步骤如下：2 . The method for online generation and execution of a power grid accident handling plan according to claim 1 , wherein the fault information includes accident transient process protection alarm, wave recording, switch displacement information, equipment protection signal, telemetry Change data; the specific steps of determining the lost electronic system according to the fault information are as follows: 当检测到保护动作信号、开关变位时，启动判断程序；经20秒延时后，若母线电压降幅大于90％或母线电压小于等于0.2kV，则判断为源头失压站；When the protection action signal and switch displacement are detected, the judgment procedure is started; after a delay of 20 seconds, if the busbar voltage drop is greater than 90% or the busbar voltage is less than or equal to 0.2kV, it is judged as the source voltage loss station; 扫描源头失压站的所有关联厂站，若该关联场站在发生故障前10S有电流和电压且该关联场站的母线在发生故障后无电压，则判定为被迫失压站。Scan all the associated stations of the source voltage loss station, if the associated station has current and voltage 10S before the failure and the busbar of the associated station has no voltage after the failure, it is determined as a forced voltage loss station. 3.根据权利要求2所述的一种电网事故处置预案在线生成与执行方法，其特征在于：搜索复电路径的具体步骤如下：3. The method for online generation and execution of a power grid accident handling plan according to claim 2, characterized in that: the specific steps of searching for a recovery path are as follows: 确定与失电子系统关联的送电电源；根据广度优先搜索算法或深度优先搜索算法，以源头失压站为起始点，潮流框图连接线为路径，逐级延伸搜索至送电电源，得到若干条复电路径。Determine the power transmission source associated with the power loss system; according to the breadth-first search algorithm or the depth-first search algorithm, with the source voltage loss station as the starting point and the power flow diagram connection line as the path, the search is extended step by step to the power transmission source, and several Recovery path. 4.根据权利要求3所述的一种电网事故处置预案在线生成与执行方法，其特征在于：对所有所述复电路径进行安全检索的具体步骤如下：4. The method for online generation and execution of a power grid accident handling plan according to claim 3, characterized in that: the specific steps of performing safety retrieval on all the re-power paths are as follows: 检查区域内接地刀闸门是否断开；将不接地主变各侧开关、小水电线路开关、低周动作馈线开关设置为热备用状态；断开复电路径本侧站线路开关；若该复电路径从低电压等级送电，则还需要改变软压板方式。Check whether the grounding knife gate in the area is disconnected; set the switches on each side of the ungrounded main transformer, the small hydropower line switch, and the low-cycle action feeder switch to the hot standby state; If the path transmits power from a low voltage level, it is also necessary to change the soft platen method. 5.根据权利要求4所述的一种电网事故处置预案在线生成与执行方法，其特征在于：所述校验内容包括：转供容量、网损、甩负荷、整体潮流、电压偏差、开关操作总数；根据校验结果选取最优路径的具体公式如下：5. The method for online generation and execution of a power grid accident handling plan according to claim 4, wherein the verification content includes: transfer capacity, network loss, load shedding, overall power flow, voltage deviation, switching operation The specific formula for selecting the optimal path according to the verification result is as follows: Ochose＝min(O1,O2,…,Oi,…,OH),i＝1,2,…,HO chose =min(O 1 ,O 2 ,...,O i ,...,OH ),i=1,2,..., H Oi＝r1·Llengthi+r2·Pflowi+r3·ΔUi+r4·Cti O i =r 1 ·L lengthi +r 2 ·P flowi +r 3 ·ΔU i +r 4 ·C ti 式中：Ochose为选取的路径编号，H为生成路径总数；Oi为路径选择因子，r1～r4分别为路径i的长度Llengthi、整体潮流Pflowi、电压偏差ΔUi和开关操作总数Cti的权值
Figure FDA0002690324810000031
In the formula: O chose is the number of the selected path, H is the total number of generated paths; O i is the path selection factor, r 1 to r 4 are the length L lengthi of the path i, the overall power flow P flowi , the voltage deviation ΔU i and the switching operation. The weight of the total number C ti
Figure FDA0002690324810000031
 6.一种电网事故处置预案在线生成与执行设备，其特征在于，包括存储器和处理器，所述存储器存储有指令，所述指令适于由处理器加载并执行以下步骤：6. A power grid accident handling plan online generation and execution device, characterized in that it comprises a memory and a processor, wherein the memory stores instructions, and the instructions are adapted to be loaded by the processor and execute the following steps: 根据故障信息确定失电子系统，所述失电子系统包括源头失压站和被迫失压站；Determining the lost electronic system according to the fault information, the electronic lost system includes a source pressure loss station and a forced pressure loss station; 搜索复电路径，所述复电路径连通送电电源与失电子系统；Searching for a recovery path, the recovery path is connected to the power supply and the loss-of-electronic system; 对所有搜索到的复电路径进行安全检索，舍弃未通过安全检索的复电路径；Perform safety retrieval on all searched recovery paths, and discard the recovery paths that fail the safety retrieval; 对通过安全检索的复电路径进行校验，若存在至少一条通过校验的复电路径，则根据校验结果选取最优路径；若不存在通过校验的复电路径，则根据通用策略切除部分负荷后再按上述步骤重新搜索复电路径并进行安全检索和校验，选取最优路径；Verify the recovery path that has passed the security retrieval. If there is at least one recovery path that passes the verification, the optimal path is selected according to the verification result; if there is no recovery path that passes the verification, it is cut off according to the general strategy After partial load, follow the steps above to re-search for the recovery path and perform safety retrieval and verification to select the optimal path; 根据最优路径生成预案，所述预案包括带有操作序列的待自动遥控操作设备列表；generating a plan according to the optimal path, the plan including a list of devices to be automatically remotely operated with an operation sequence; 自动执行预案，根据所述带有操作序列的待自动遥控操作设备列表，按操作序列自动执行开关拉合操作。The plan is automatically executed, and according to the list of devices to be automatically remotely operated with the operation sequence, the switch pulling and closing operation is automatically executed according to the operation sequence. 7.根据权利要求6所述的一种电网事故处置预案在线生成与执行方法，其特征在于：所述故障信息包括事故暂态过程保告警、录波、开关变位信息、设备保护信号、遥测变化数据；所述根据故障信息确定失电子系统的具体步骤如下：7 . The method for online generation and execution of a power grid accident handling plan according to claim 6 , wherein the fault information includes accident transient process protection alarm, wave recording, switch displacement information, equipment protection signal, telemetry Change data; the specific steps of determining the lost electronic system according to the fault information are as follows: 当检测到保护动作信号、开关变位时，启动判断程序；经20秒延时后，若母线电压降幅大于90％或母线电压小于等于0.2kV，则判断为源头失压站；When the protection action signal and switch displacement are detected, the judgment procedure is started; after a delay of 20 seconds, if the busbar voltage drop is greater than 90% or the busbar voltage is less than or equal to 0.2kV, it is judged as the source voltage loss station; 扫描源头失压站的所有关联厂站，若该关联场站在发生故障前10S有电流和电压且该关联场站的母线在发生故障后无电压，则判定为被迫失压站。Scan all the associated stations of the source voltage loss station, if the associated station has current and voltage 10S before the failure and the busbar of the associated station has no voltage after the failure, it is determined as a forced voltage loss station. 8.根据权利要求7所述的一种电网事故处置预案在线生成与执行方法，其特征在于：搜索复电路径的具体步骤如下：8. The method for online generation and execution of a power grid accident handling plan according to claim 7, characterized in that: the specific steps of searching for a recovery path are as follows: 确定与失电子系统关联的送电电源；根据广度优先搜索算法或深度优先搜索算法，以源头失压站为起始点，潮流框图连接线为路径，逐级延伸搜索至送电电源，得到若干条复电路径。Determine the power transmission source associated with the power loss system; according to the breadth-first search algorithm or the depth-first search algorithm, with the source voltage loss station as the starting point and the power flow diagram connection line as the path, the search is extended step by step to the power transmission source, and several Recovery path. 9.根据权利要求8所述的一种电网事故处置预案在线生成与执行方法，其特征在于：对所有所述复电路径进行安全检索的具体步骤如下：9. The method for online generation and execution of a power grid accident handling plan according to claim 8, characterized in that: the specific steps of performing safety retrieval on all the power recovery paths are as follows: 检查区域内接地刀闸门是否断开；将不接地主变各侧开关、小水电线路开关、低周动作馈线开关设置为热备用状态；断开复电路径本侧站线路开关；若该复电路径从低电压等级送电，则还需要改变软压板方式。Check whether the grounding knife gate in the area is disconnected; set the switches on each side of the ungrounded main transformer, the small hydropower line switch, and the low-cycle action feeder switch to the hot standby state; If the path transmits power from a low voltage level, it is also necessary to change the soft platen method. 10.根据权利要求9所述的一种电网事故处置预案在线生成与执行方法，其特征在于：所述校验内容包括：转供容量、网损、甩负荷、整体潮流、电压偏差、开关操作总数；根据校验结果选取最优路径的具体公式如下：10 . The method for online generation and execution of a power grid accident handling plan according to claim 9 , wherein the verification content includes: transfer capacity, network loss, load shedding, overall power flow, voltage deviation, and switching operations. 11 . The specific formula for selecting the optimal path according to the verification result is as follows: Ochose＝min(O1,O2,…,Oi,…,OH),i＝1,2,…,HO chose =min(O 1 ,O 2 ,...,O i ,...,OH ),i=1,2,..., H Oi＝r1·Llengthi+r2·Pflowi+r3·ΔUi+r4·Cti O i =r 1 ·L lengthi +r 2 ·P flowi +r 3 ·ΔU i +r 4 ·C ti 式中：Ochose为选取的路径编号，H为生成路径总数；Oi为路径选择因子，r1～r4分别为路径i的长度Llengthi、整体潮流Pflowi、电压偏差ΔUi和开关操作总数Cti的权值，
Figure FDA0002690324810000051
In the formula: O chose is the number of the selected path, H is the total number of generated paths; O i is the path selection factor, r 1 to r 4 are the length L lengthi of the path i, the overall power flow P flowi , the voltage deviation ΔU i and the switching operation. the weight of the total number C ti ,
Figure FDA0002690324810000051
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