CN-122026630-A - Method and system for multiple prejudgment of remote control operation of primary equipment of transformer substation

CN122026630ACN 122026630 ACN122026630 ACN 122026630ACN-122026630-A

Abstract

A method and a system for performing multiple prejudgments on primary equipment remote control operation of a transformer substation are provided, wherein the multiple prejudgments library comprises a remote prejudgments rule subscription library, a first heavy object prejudgments library and other multiple prejudgments libraries, the primary equipment remote control operation firstly initiates multiple prejudgments flows, after the first heavy object prejudgments rule is passed, a second heavy body prejudgments rule, a third heavy running prejudgments rule, a fourth heavy five prevention prejudgments rule and a fifth heavy environment prejudgments rule are executed in parallel according to tasks, the four heavy prejudgments rules are all successful after passing through multiple prejudgments, operations of primary equipment remote control selection and execution are continuously executed, otherwise, the multiple prejudgments fail, the primary equipment remote control operation is stopped, and the reason of the prejudgments failure is displayed. According to the invention, multiple prejudgments of the remote control operation of the primary equipment of the transformer substation are realized, the intrinsic safety level of the remote control operation is improved, and a more solid technical guarantee is provided for the reliable operation of the intelligent power grid.

Inventors

XU JIAYAN
LIU CHUNLEI
JIANG KAIJI
SHA QIANYU
Jin Xueru
MENG KUI
CHEN YUAN
LI YUTING
FANG PING
LIU GANG
WANG SHENQIANG
LI KUN
FU YANLI
Lv Hongchang

Assignees

北京四方继保工程技术有限公司
北京四方继保自动化股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251229

Claims (10)

1. A method for performing multiple prejudgments on primary equipment remote control operation of a transformer substation is characterized by comprising the following steps: the method comprises the steps of constructing a substation primary equipment remote control operation multiple pre-judging library, wherein the substation primary equipment remote control operation multiple pre-judging library comprises a system equipment basic library, a remote control pre-judging rule subscription library, a first heavy object pre-judging library and other multiple pre-judging libraries; the remote control operation of the primary equipment firstly initiates a multiple pre-judging process, if any rule of the first heavy object pre-judging rule is not subscribed by the remote control pre-judging rule subscription library or all subscription rules passing through the first heavy object pre-judging rule in sequence are verified, the pre-judging process is continued, otherwise, the remote control operation is stopped; Starting a prejudging task based on other multiple prejudging libraries, and for any judging task, if the remote control prejudging rule subscription library does not subscribe any corresponding rule or sequentially passes all subscription rule verification of the judging task, outputting a verification passing result, otherwise, outputting a verification failing result; If the output verification of any judging task fails to pass the result, the multiple prejudgment fails, the remote control operation of the primary equipment is stopped, the prejudgment failure result is visually displayed, otherwise, the multiple prejudgment succeeds, and the remote control selection and execution operation of the primary equipment are continuously executed.
2. The method for remotely controlling and operating multiple prejudgments on primary equipment of a transformer substation according to claim 1, wherein the method comprises the following steps: The other multiple pre-judging libraries comprise a second heavy body pre-judging library, a third heavy operation pre-judging library, a fourth heavy five-prevention pre-judging library and a fifth heavy environment pre-judging library, wherein the second heavy body pre-judging library is a database required by executing a second heavy body pre-judging rule, the third heavy operation pre-judging library is a database required by executing a third heavy operation pre-judging rule, the fourth heavy five-prevention pre-judging library is a database required by executing a fourth heavy five-prevention pre-judging rule, and the fifth heavy environment pre-judging library is a database required by executing a fifth heavy environment pre-judging rule; the remote control prejudging rule subscription library is a subscription library for subscribing a first heavy object prejudging rule, a second heavy body prejudging rule, a third heavy operation prejudging rule, a fourth heavy environment prejudging rule and a fifth heavy environment prejudging rule according to the type of the primary equipment and remote control on/off operation of the primary equipment.
3. The method for remotely controlling and operating multiple prejudgments on primary equipment of a transformer substation according to claim 2, wherein the method comprises the following steps: The system equipment base library supports one-time equipment remote control operation and at least comprises a spacing library, a device library, a remote signaling library and a remote control library, wherein the remote control library can be created by importing a transformer substation model file; The remote control prejudging rule subscription library subscribes rules of remote control on/off operation of the primary equipment by respectively setting various verified attributes according to the type classification of the primary equipment; The first heavy object prejudging library comprises a user authority library and a double-number library; the second heavy body prejudging library comprises an operation condition library and a locking condition library; The third triple operation pre-judging library comprises a primary state library and a secondary state library; The fourth five-prevention pre-judgment library comprises an intelligent error-prevention library; The fifth environmental prejudgment library comprises a video linkage library and an electronic fence library.
4. A method for remotely controlling multiple prejudgments of primary equipment of a substation according to claim 3, characterized in that: The remote control prejudging rule subscription library is divided into three types of a breaker, a disconnecting switch and a grounding disconnecting switch according to the type of primary equipment, and the remote control on/off operation rules of the primary equipment are subscribed through the attributes including remote control on/off verification, remote control off verification and remote control off verification which are respectively set with operation authority verification, monitoring authority verification, double-number verification, operation condition verification, locking condition verification, protection operation verification, intelligent error prevention verification, video linkage verification and electronic fence verification.
5. The method for remotely controlling and operating multiple prejudgments on primary equipment of a transformer substation according to claim 4, wherein the method comprises the following steps: The user authority library is user information of statically set operators and guardians, and the user information at least comprises a user index, a user name, an encrypted complexity password, a UKEY code, a fingerprint, and operation authority and guardian authority of the user The double-number library is double-number information of the statically set primary equipment remote control points, and the double-number information at least comprises a remote control point index, a remote control name and double numbers, for example, but not limited to, the primary equipment numbers are automatically set or manually set after the primary equipment is built.
6. A method for multiple prejudgments of substation primary equipment remote control according to any one of claims 3 to 5, characterized in that: In the second heavy body prejudging library, the operation condition library is all operation condition information required by the remote control on/off of the primary equipment which is statically and dynamically set; the locking condition library is a locking condition signal of any abnormal condition that can not occur in the remote control of the primary equipment which is statically and dynamically set; The first state library is interval information and interval state information of a first interval which is statically and dynamically set, and the second state library is device information and device state information of secondary equipment such as relay protection devices, intelligent terminal devices, merging unit devices and the like which are related to the first interval which is statically and dynamically set; the intelligent error prevention library of the fourth five-prevention pre-judgment library is statically and dynamically set error prevention system interaction information, and the error prevention system interaction information is primary equipment related information for communication interaction with the error prevention system; in the fifth environmental prejudgment library, the video linkage library is statically and dynamically set video linkage interaction information, the video linkage interaction information is primary equipment related information for communication interaction with a video system, the electronic fence library is statically and dynamically set electronic fence interaction information, and the electronic fence interaction information is primary equipment related information for communication interaction with the electronic fence system.
7. A method for multiple prejudgments of substation primary equipment remote control according to any one of claims 2 to 5, characterized in that: the first heavy object prejudgment rule comprises operation authority verification, monitoring authority verification and double-number verification, and prejudgment is performed according to the sequence of the operation authority verification, the monitoring authority verification and the double-number verification and subscription conditions to ensure the validity of remote control operation and the correctness of remote control objects; The second entity prejudging rule comprises operation condition verification and locking condition verification, and the entity safety before one-time equipment operation is ensured according to the sequence of the operation condition verification and the locking condition verification and subscription condition prejudgment; The third triple operation prejudging rule comprises protection operation verification, and the primary equipment is ensured to operate safely with protection according to subscription conditions; the fourth five-prevention prejudgment rule comprises intelligent anti-misoperation verification, and the condition of subscription ensures that primary equipment operation meets five-prevention logic; The fifth environmental prejudgment rule comprises video linkage verification and electronic fence verification, and environmental safety before one-time equipment operation is ensured according to the sequence of the video linkage verification and the electronic fence verification and subscription condition prejudgment.
8. A method for multiple prejudgments of substation primary equipment remote control according to any one of claims 2 to 5, characterized in that: Synchronously starting a second heavy body prejudging task, a third heavy running prejudging task, a fourth heavy five-prevention prejudging task and a fifth environment prejudging task; If any rule of the second entity pre-judging rule is not subscribed by the remote control pre-judging rule subscription library or all subscription rules of the second entity pre-judging rule are verified in sequence, outputting a verification passing result by the second entity pre-judging task, otherwise, outputting a verification failing result; If any rule of the third re-running pre-judging rule is not subscribed by the remote control pre-judging rule subscription library or all subscription rules of the third re-running pre-judging rule are verified in sequence, outputting a verification passing result by the third re-running pre-judging task, otherwise, outputting a verification failing result; If any rule of the fourth five-prevention pre-judgment rule is not subscribed by the remote control pre-judgment rule subscription library or all subscription rules of the fourth five-prevention pre-judgment rule are verified in sequence, the fourth five-prevention pre-judgment task outputs a verification passing result, otherwise, the fourth five-prevention pre-judgment task outputs a verification failing result; If any rule of the fifth environmental prejudgment rule is not subscribed by the remote control prejudgment rule subscription library or all subscription rules of the fifth environmental prejudgment rule are verified in sequence, the fifth environmental prejudgment task outputs a verification passing result, otherwise, the fifth environmental prejudgment task outputs a verification failing result.
9. A method for multiple prejudgments of substation primary equipment remote control according to any one of claims 2 to 5, characterized in that: The visualized display pre-judging failure result comprises a second entity pre-judging rule failure result, a third re-running pre-judging rule failure result, a fourth five-prevention pre-judging rule failure result and a fifth environment pre-judging rule failure result; the visualization of the failure result of the second body pre-judging rule is to display operation condition information which is not satisfied by the operation condition verification and abnormal locking condition information in a list mode according to an operation condition library and a locking condition library which are operated by a remote control at one time interval; The visualization of the failure result of the third triple operation prejudging rule is to automatically draw a logic relation diagram to visually display a protection operation logic diagram related to the interval according to a primary state library and a secondary state library of a primary interval of remote control operation, clearly display the logic of all devices and operation information thereof when the primary interval state is changed from a cold standby state to a hot standby state or the hot standby state to the operation state, and mark devices and operation information thereof which do not meet the requirement through red emphasis on the logic diagram; the visualization of the failure result of the fourth five-prevention prejudgment rule is to display the five-prevention locking result information returned by the error prevention system and not allowing remote control operation; The fifth environmental prejudgment rule failure result comprises a video linkage verification failure condition and an electronic fence verification failure condition, wherein the visualization of the video linkage verification failure result is used for displaying intrusion information returned by a video system and not allowing remote control operation and real-time displaying equipment area videos, and the visualization of the electronic fence verification failure result is used for displaying abnormal electronic fence information existing in electronic fence verification in a list mode according to the electronic fence interaction information.
10. A substation primary equipment remote operation multiple prejudgment system, executing a substation primary equipment remote operation multiple prejudgment method according to any one of claims 1 to 9, characterized in that: the multiple prejudgment system at least comprises a multiple prejudgment library configuration module, a message bus, a multiple prejudgment real-time library module, a communication module and a primary equipment remote control operation module; The multiple prejudgment library configuration module is used for statically setting a system equipment basic library, a first heavy object prejudgment library and other multiple prejudgment libraries; The message bus is used for message interaction among the multiple prejudging real-time library modules, the communication modules and the primary equipment remote control operation modules, and interaction commands and other information data among the modules are realized; the multi-prejudgement real-time library module is used for loading all file data configured by the multi-prejudgement library configuration module to create a real-time library required by system operation, receiving data acquired by the communication module through the message bus, updating real-time values of corresponding information in the real-time library, sharing the data of the real-time library to the primary equipment remote control operation module through the message bus, and forwarding interactive command data of the primary equipment remote control operation module and the communication module through the message bus; the communication module collects real-time information through a communication protocol, receives an operation command of the primary equipment remote control operation module, sends the operation command to a corresponding system, and returns a command result to the primary equipment remote control operation module; The primary equipment remote control operation module provides a remote control operation interface to initiate primary equipment remote control, the rule subscribed by the library is subscribed according to the remote control prejudgment rule, the first heavy object prejudgment rule is verified, after the verification is passed, prejudgment tasks corresponding to a plurality of other multiple prejudgment libraries are started, and then the remote control operation is determined to be continuously executed or stopped according to multiple prejudgment results, meanwhile, a command related to the remote control operation is sent to the communication module, and related data returned by the processing communication module is received.

Description

Method and system for multiple prejudgment of remote control operation of primary equipment of transformer substation Technical Field The invention belongs to the technical field of substation monitoring, and particularly relates to a method and a system for multiple prejudgment of remote control operation of primary equipment of a substation. Background The transformer substation is an important component of the power system, and the safe and stable operation of the transformer substation is directly related to the reliability and the power supply quality of the power grid. Primary equipment such as a breaker, a disconnecting switch and the like in a station is remotely controlled through a transformer substation monitoring system and a remote energy management system or a centralized monitoring system, so that the remote control system becomes a conventional means for power grid dispatching and transformer substation operation and maintenance. The accuracy and reliability of remote control operation are foundation stones for safe operation of a power grid, once misoperation occurs, local power failure is caused by light operation, equipment damage, power grid vibration and even personal safety accidents are caused by heavy operation, and the consequence is not considered. In the prior art, the error locking prevention and safety check of remote control operation mainly depend on the following layers: 1) And the anti-misoperation system logic locking is that before the remote control operation of the monitoring system, the anti-misoperation system is inquired and checked whether the operation accords with the logic rule or not based on the preset five-prevention logic rule. For example, the on-load pull-in disconnecting switch is prohibited, and the circuit breaker is prevented from being opened or closed by mistake. 2) And the hardware electric locking is realized by connecting auxiliary contacts of related equipment in series into an operation loop in a hard-wire mode. Only when all the lock conditions are satisfied, the operation power supply can be turned on, thereby physically preventing erroneous operation. 3) And the operation ticket system is used for pre-writing operation tickets by operation staff according to the work tasks, executing the operation tickets according to the step sequence of the operation tickets by the monitoring system, and checking the state of each step. However, the prior art solutions still have the following significant drawbacks and risks in practical applications: 1) The limitation of static criteria is that the traditional five-prevention logic mainly depends on static acquisition information of equipment states. However, in complex grid operation, especially when the system is in an abnormal or transitional state, static information may not fully reflect the true dynamics of the system in real time. 2) The remote control operation is mainly dependent on a small amount of safety logic and error-preventing system locking logic of a monitoring system at present, and the judgment basis is mainly limited to the positions of a breaker, a disconnecting switch, a grounding disconnecting switch and a small amount of electric quantity, so that the judgment of the full body data of primary equipment is lacked, the risk assessment of personnel invasion in an equipment area is realized, and the like, and the comprehensive judgment of multi-dimensional and cooperative utilization cannot be performed by fully utilizing the panoramic data of a power grid. 3) The risk management and control of the protection operation state is insufficient, namely, with the development of the intelligent substation, the switching of the protection operation state relates to a plurality of functional soft pressing plates, outlet soft pressing plates and outlet hard pressing plates, and on the premise that the protection operation state is not completely switched in, the primary equipment is operated by remote control, the risks of misoperation and refusal are greatly improved, and the existing system lacks the logic relevance and risk prejudging capability. In summary, the existing remote control safety protection system of the transformer substation plays an important role in preventing typical misoperation, but is essentially a 'passive' defense based on static rules and local information. In the face of increasingly complex power grid structures and running modes, the system has obvious defects in the aspects of initiative and global risk prejudgment, and a novel method and system capable of fusing multi-source information and carrying out multi-depth prejudgment are needed to further improve the intrinsic safety level of remote control operation and provide more solid technical guarantee for reliable running of the intelligent power grid. Disclosure of Invention In order to solve the defects in the prior art, the invention provides a method and a system for multiple prejudgment of the remote control