电力系统宽频测量技术方案与展望

Wide-frequency measurement technology solution and prospect of power system

随着高比例可再生能源和高比例电力电子设备大量引入电网,宽频范围可观可测需求日趋迫切,亟须建立一套适用于电力系统的宽频测量装置。在调研国内研究现状的基础上,指出了宽频带数据统一高精度测量科学问题,围绕当前宽频测量遇到的工程技术问题,分别从多成分信号高精度采集,瞬态、暂态、稳态信号精确识别,宽频信号测量分析结果高效传输,宽频测试技术与测试平台,调控方式及调控效果监测5个方面,提出了电力系统宽频测量技术的研究思路与框架。同时,在相量测量装置基础上开发了宽频测量装置,初步验证了技术的实现效果并指出了后续研究重点攻关方向。

With the introduction of high proportion renewable energy and high proportion power electronic equipment into the power grid,the demand for wide-frequency observability and measurability is becoming increasingly urgent.It is urgent to establish a set of wide-frequency measurement device suitable for power system.On the basis of investigating the domestic recent research situation,the scientific problems of widefrequency unifying high precision measurement are expounded,focusing on the engineering and technical problems encountered in the current wide-frequency measurement.The research idea and framework of power system wide-frequency measurement technology are proposed from five aspects:high-precision acquisition of multi-component signals,accurate identification of instant,transient and steady-state signals,highly efficient transmission of signal measurement and analysis results,wide-frequency testing technology and testing platform,regulation mode and regulation effect monitoring.At the same time,wide-frequency measurement device is developed on the basis of phasor measurement unit.The implementation effect of the technology is preliminarily verified and the key research directions of the follow-up research are pointed out.