A testing method of in-situ FTU coordination control capability based on cloud platform

Abstract

The invention provides a method for testing the coordination control capability of a local FTU based on a cloud platform. According to the method, a simulated distribution network feeder model is built on the cloud platform through a cooperative office mode according to an actual distribution network feeder model, and a fault state scene of the simulated distribution network feeder model is set; during the testing, the actually tested local voltage-time FTU performs real-time data interaction with the cloud platform; after the actually measured local voltage-time FTU obtains fault simulation data, the closing (opening) operation of a corresponding cloud platform section switch is controlled; and the cloud platform records the closing (opening) operation time of the corresponding section switch controlled by the actually measured local voltage-time FTU. According to the invention, the opening and closing operation time of each local voltage-time FTU controlled section switch in the transient and steady processes of the circuit can be recorded. The test precision of the coordination control time of multiple voltage-time FTUs is improved, and the test efficiency is high.

Description

technical field [0001] The invention relates to the technical field of feeder automation, in particular to a method for testing the coordinated control capability of an on-site FTU based on a cloud platform. Background technique [0002] Feeder automation (FA) has become one of the main measures to improve the reliability of power supply in distribution network under the application background of new computer, communication and electrical technology. Feeder automation is mainly based on the feeder terminal unit (FTU), and through the master station system and the supporting communication system, the operation status of the distribution network segment switch is monitored in real time, and the necessary voltage and current signals are collected to ensure When a fault occurs, it automatically implements protection and control actions, isolates the fault area, improves power supply efficiency, and reduces power outage losses. [0003] FA mainly has three modes: centralized FA,...

AI Technical Summary

Problems solved by technology

This test method has the following disadvantages: the current relay protection tester can only test whether a single voltage-time type FTU issues closing and opening commands according to the setting parameters

Therefore, the existing detection technology cannot judge the correctness of the coordinated control of multiple voltage-time FTUs in the complex distribution network.

At the same time, due to the limitation of the voltage and current signal function output during the fault transient process, the current relay protection tester cannot test the influence of the opening and closing transient process of multiple section switches on the coordinated control function of multiple FTUs.

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