CN-122018397-A - Remote control system for power transmission and distribution switch

CN122018397ACN 122018397 ACN122018397 ACN 122018397ACN-122018397-A

Abstract

The application belongs to the field of power distribution switch control, relates to a data analysis technology, and aims to solve the problem that in the prior art, a single power distribution switch cannot be subjected to state monitoring and abnormal characteristic marking is carried out by combining a power distribution switch state monitoring result of a single power transmission and distribution line; according to the application, the control objects in the screening objects are numbered according to the power transmission and distribution directions, and variance calculation is performed on the sequence number set of the abnormal objects to obtain the distribution coefficient, so that the spatial distribution characteristics of the abnormal objects on the power transmission and distribution lines can be accurately quantized, the system can further distinguish whether the abnormality is concentrated in a specific area or dispersed in different positions, and the accuracy and the efficiency of fault diagnosis are greatly improved by the aid of the fine abnormal characteristic marks.

Inventors

WANG KAI
XUE PING

Assignees

苏州钛牛能源科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260129

Claims (8)

1. The remote control system for the power transmission and distribution switch is characterized by comprising a remote control platform, wherein the remote control platform is in communication connection with a state monitoring module, a single line evaluation module, a single line screening module and a database; the state monitoring module is used for carrying out state monitoring analysis on the power distribution switch of the power transmission and distribution network, namely marking the power distribution switch of the power transmission and distribution network as a monitoring object, generating a monitoring period, setting a plurality of monitoring time points with equal time intervals in the monitoring period, acquiring a monitoring coefficient of the monitoring object at the monitoring time point, and marking the monitoring object as a normal object or an abnormal object through the monitoring coefficient; The single-wire evaluation module is used for evaluating and analyzing the overall state of a power distribution switch of a single transmission and distribution line in a transmission and distribution network, marking the transmission and distribution line in the transmission and distribution network as an evaluation object, generating an evaluation coefficient according to the marking result of a monitoring object in the evaluation object, judging whether the overall state of the evaluation object meets the requirement or not according to the evaluation coefficient, generating a single-wire screening signal when the overall state of the evaluation object does not meet the requirement, and transmitting the single-wire screening signal to the single-wire screening module; The single-line screening module is used for carrying out abnormal screening analysis on the screening objects.
2. The remote control system for a power distribution switch applied to a transmission and distribution network according to claim 1, wherein the acquisition process of the monitoring coefficient of the monitoring object comprises the steps of acquiring the ring stream data QL, the control response data XK and the opening and closing data KH of the monitoring object at a monitoring time point, forming monitoring data row vectors HK, HK= [ QL, KX, KH ] of the monitoring time point by the ring stream data QL, the control response data KX and the opening and closing data KH of the monitoring object at the monitoring time point, generating weight column vectors LK, LK= [ c1, c2, c3] t for the monitoring time point, wherein c1, c2 and c3 are weight coefficients corresponding to the ring stream data QL, the control response data KX and the opening and closing data KH respectively, t is a transpose symbol of a column vector, and performing dot product calculation on the monitoring data row vectors HK and the weight column vectors LK of all the monitoring object at the monitoring time point to obtain the monitoring coefficient of the monitoring object.
3. The remote control system for the power distribution switch applied to the transmission and distribution network according to claim 2 is characterized in that the acquisition process of loop data QL comprises the steps of acquiring a coil current of a monitored object, calling a current standard range, marking an average value of a maximum value and a minimum value of the current standard range as a current standard value, marking an absolute value of a difference value between the coil current and the current standard value as loop data QL, acquiring response control data KX comprises the steps of forming a monitoring period by a current monitoring time point and a previous monitoring time point, acquiring a maximum value of control response delay of the monitored object when the state of the monitored object is switched in the monitoring period and marking the maximum value as response control data KX, and acquiring opening and closing data KH comprises the steps of acquiring an opening and closing opening of the monitored object when the state is switched in the monitoring period, marking the absolute value of the difference value of the opening and closing state of the monitored object as an opening and closing state corresponding to the monitored object as opening and closing data KH.
4. The remote control system for the power distribution switch applied to the transmission and distribution network according to claim 3, wherein the specific process of marking the monitored object as a normal object or an abnormal object comprises the steps of calling a monitoring threshold through a database, comparing a monitoring coefficient of the monitored object with the monitoring threshold, judging that the control state of the monitored object at a monitoring time point meets the requirement if the monitoring coefficient is smaller than the monitoring threshold, marking the corresponding monitored object as the normal object, judging that the control state of the monitored object at the monitoring time point does not meet the requirement if the monitoring coefficient is larger than or equal to the monitoring threshold, marking the corresponding monitored object as the abnormal object, generating an instant processing signal and sending the instant control signal to a mobile phone terminal of a manager.
5. The remote control system for the power distribution switch applied to the transmission and distribution network according to claim 4, wherein the process of obtaining the evaluation coefficients of the evaluation objects comprises the step of marking the ratio of the number of abnormal objects corresponding to the evaluation objects at the monitoring time points to the total number of the monitoring objects contained in the evaluation objects as the evaluation coefficients of the evaluation objects.
6. The remote control system for the power distribution switch applied to the transmission and distribution network according to claim 5, wherein the specific process of judging the overall state of the evaluation object comprises the steps of acquiring an evaluation threshold value through a database, comparing an evaluation coefficient with the evaluation threshold value, judging that the overall state of the evaluation object meets the requirement if the evaluation coefficient is smaller than the evaluation threshold value, judging that the overall state of the evaluation object does not meet the requirement if the evaluation coefficient is larger than or equal to the evaluation threshold value, and marking the corresponding evaluation object as a screening object.
7. The remote control system for the power switch of the transmission and distribution network, which is applied to the transmission and distribution network according to claim 6, is characterized in that the single-line screening module carries out abnormal screening analysis on the screened objects, wherein the control objects in the screened objects are numbered according to the transmission and distribution directions, an abnormal set is formed by serial numbers of all abnormal objects in the screened objects, variance calculation is carried out on the abnormal set to obtain distribution coefficients of the screened objects, and abnormal characteristics of the screened objects are marked through the distribution coefficients.
8. The remote control system for the power distribution switch applied to the transmission and distribution network according to claim 7, wherein the specific process of marking the abnormal characteristics of the screened object comprises the steps of obtaining a distribution threshold through a database, comparing a distribution coefficient with the distribution threshold, marking the abnormal characteristics of the screened object as regional environment abnormality if the distribution coefficient is smaller than the distribution threshold, generating a regional environment optimization signal and sending the regional environment optimization signal to a mobile phone terminal of a manager, marking the abnormal characteristics of the screened object as end equipment faults if the distribution coefficient is larger than or equal to the distribution threshold, generating an end equipment diagnosis signal and sending the end equipment diagnosis signal to the mobile phone terminal of the manager, and performing fault diagnosis on a transformer substation or a converter station connected with the screened object after the manager receives the end equipment diagnosis signal.

Description

Remote control system for power transmission and distribution switch Technical Field The invention belongs to the field of power distribution switch control, relates to a data analysis technology, and particularly relates to a power distribution switch remote control system applied to a transmission and distribution network. Background The power distribution switch remote control system is a core component of modern power distribution network automation, intelligent management of a power distribution network is realized by remotely and intensively monitoring and controlling various switch devices scattered in the power distribution network, and the system is evolving from a traditional remote control function to an intelligent power distribution management system with comprehensive perception, intelligent decision and precise control, and becomes a key infrastructure for constructing a novel power system. The invention patent with publication number CN118659393B discloses a power distribution system and a power distribution switch control method thereof, wherein the control method can realize the adaptive switching of the power distribution switch state when the power distribution system intermittently shakes load, thereby improving the immunity of the power distribution system in the power distribution process, but the control method cannot perform state monitoring on a single power distribution switch and perform abnormal characteristic marking on the power distribution switch state monitoring result combined with a single power transmission and distribution line, so that the macroscopic fault positioning efficiency is low. The application provides a solution to the technical problem. Disclosure of Invention The invention aims to provide a remote control system of a power distribution switch applied to a power transmission and distribution network, which is used for solving the problems that the state of a single power distribution switch cannot be monitored and abnormal characteristic marking can not be carried out by combining the state monitoring result of the power distribution switch of the single power transmission and distribution line in the prior art; The technical problem to be solved by the invention is how to provide a remote control system for the power distribution switch, which can be applied to a power transmission and distribution network and can be used for carrying out abnormal characteristic marking by combining the monitoring result of the power distribution switch state of a single power transmission and distribution line. The aim of the invention can be achieved by the following technical scheme: The remote control system for the power transmission and distribution switch comprises a remote control platform, wherein the remote control platform is in communication connection with a state monitoring module, a single-wire evaluation module, a single-wire screening module and a database; the state monitoring module is used for carrying out state monitoring analysis on the power distribution switch of the power transmission and distribution network, namely marking the power distribution switch of the power transmission and distribution network as a monitoring object, generating a monitoring period, setting a plurality of monitoring time points with equal time intervals in the monitoring period, acquiring a monitoring coefficient of the monitoring object at the monitoring time point, and marking the monitoring object as a normal object or an abnormal object through the monitoring coefficient; The single-wire evaluation module is used for evaluating and analyzing the overall state of a power distribution switch of a single transmission and distribution line in a transmission and distribution network, marking the transmission and distribution line in the transmission and distribution network as an evaluation object, generating an evaluation coefficient according to the marking result of a monitoring object in the evaluation object, judging whether the overall state of the evaluation object meets the requirement or not according to the evaluation coefficient, generating a single-wire screening signal when the overall state of the evaluation object does not meet the requirement, and transmitting the single-wire screening signal to the single-wire screening module; The single-line screening module is used for carrying out abnormal screening analysis on the screening objects. Further, the process for obtaining the monitoring coefficient of the monitored object comprises the steps of obtaining the ring stream data QL, the control response data XK and the opening and closing data KH of the monitored object at a monitoring time point, forming monitoring data row vectors HK, HK= [ QL, KX, KH ] of the monitored object at the monitoring time point by the ring stream data QL, the control response data KX and the opening and closing data KH of the monitored object at the monitoring time point, generati