Research on Transmission Method Suitable for Synchronous Wide-Frequency Measurement

2023 8th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2023-04-01 DOI:10.1109/ACPEE56931.2023.10135858

Guo Fang, Tong Shizhou, Jin Yangjun, Xie Xiaodong

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Abstract

Aiming at the wide-frequency oscillation problem existing in new energy grid-connected and HVDC power transmission, it is imperative to incorporate the wide-frequency measurement results into the Wide Area Measurement System(WAMS) on the basis of the Phasor Measurement Unit (PMU). In this paper, the status of research for wide-frequency oscillation measurement communication transmission is described in detail, and then a transmission method suitable for wide-frequency measurement data is proposed. Firstly, the dual- channel communication of wide-frequency master and substations is adopted to decouple the transmission channel of synchrophasors and wide-frequency data, so as to reduce the transmission rate for synchrophasors. Secondly, wide-frequency data is refreshed at different intervals on the basis of the running status of the power grid, which effectively reduces the real-time data flow between wide-frequency master and substations, reduces the communication burden, and improves the reliability of data transmission. The practicability and effectiveness of the method are verified by simulation in the end.

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适用于同步宽频测量的传输方法研究

针对新能源并网和高压直流输电中存在的宽频振荡问题，将宽频测量结果纳入以相量测量单元(PMU)为基础的广域测量系统(WAMS)势在必行。本文详细介绍了宽频振荡测量通信传输的研究现状，并在此基础上提出了一种适用于宽频测量数据的传输方法。首先，采用宽频主站与变电站的双通道通信，将同步相量与宽频数据的传输通道解耦，从而降低同步相量的传输速率。其次，宽频数据根据电网的运行状态进行不同间隔的刷新，有效减少了宽频主站与变电站之间的实时数据流，减轻了通信负担，提高了数据传输的可靠性。最后通过仿真验证了该方法的实用性和有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2023 8th Asia Conference on Power and Electrical Engineering (ACPEE)

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