新型配电网同步相量装置测试与实际电网应用

Test and application of novel synchronous phasor device for distribution networks

配电网同步相量测量装置是配电网同步测量系统的核心装置,为实现配电网动态监测与控制提供基础数据。而配电网环境中存在多种谐波、间谐波干扰成分和动态场景。因此,同步相量算法作为关键技术需要在复杂测量环境下兼顾测量精度和动态响应性能。本文基于所提出的新型配电网同步相量算法和新研制的新型配电网同步相量装置,搭建了高精度同步相量测试平台,并基于该平台设计了符合配电网环境特征的多场景测试方案。同时在上海临港地区进行了示范应用,对实际配电网信号特征与动态特性进行了分析,同时也检验了所提出的新型配电网相量算法的有效性与准确性,为配电网同步相量测量装置的广泛应用奠定了基础。

There are multiple kinds of interference components and dynamic scenes in distribution network signals.Therefore,the synchrophasor algorithm for distribution networks needs to take both the measurement accuracy and dynamic response performance into account.At present,existing analysis methods of synchrophasor algorithm for distribution network mostly rely on simulation,lacking the verification in actual devices and the analysis of actual distribution network signals.A dual-channel synchrophasor algorithm based on frequency analysis and adaptive filter is proposed.The proposed algorithm is implemented in the PMUs based on the system on chip(SoC)and the performance of the algorithm in multiple scenarios is tested in the laboratory high-precision synchrophasor test system.In Lin-Gang Shanghai,a synchronous-measurement system for distribution networks is established,which is built on the PMU for distribution networks.Through the actual distribution system,the characteristics and dynamic characteristics of the signals in actual distribution networks are analyzed.Besides,the validity and accuracy of the proposed algorithm are tested,which lays the foundation for the widespread application of the PMU for distribution networks.