风电接入系统暂态电能质量扰动小波检测方法

摘要

With the massive development of wind power generation, an operation of wind power generation connected with power system is an inevitable trend. The operation characteristics and power quality of power system are affected by the properties of wind power generation such as fluctuation, intermittence randomicity and so on. Aiming at the problems of power quality in power systems connected with wind energy generation, this paper carried out the researches on the wavelet detection method of transient power quality disturbance in the system. Firstly, The principles and realization strategies of wavelet detection method of transient power quality is analyzed in detail and then the simulation on the proposed method are carried out and simulative results are given. Obtained results by the theoretical analyses and simulation experiments indicate that the transient power quality disturbances can be detected quickly and accurately by the proposed method. The proposed method provides an efficient and feasible detection method of transient power quality disturbance for the research on power quality problems of wind power generation.%随着风能发电的大规模发展,风能电并网运行是一种必然的发展趋势.风能的波动性、间歇性和随机性等特性使接入风电的电力系统的运行特性和电能质量受到复杂的影响.为此,针对风电并网运行中的电能质量问题,重点研究风电接人系统的暂态电能质量扰动的小波检测方法,详细分析暂态电能质量扰动小波检测的基本原理和实现策略,并给出仿真结果.理论分析和仿真结果证明该方法能够实现对暂态电能质量扰动快速、准确的检测,为研究风电接入系统暂态电能质量扰动问题提供了有效、可行的检测方法.