考虑电网惯量及调频要求的储能配置规划

Energy storage configuration planning considering grid inertia and frequency regulation requirements

随着新能源接入电网规模的不断增加,电网灵活性受到了新的挑战,与此同时,在中国东部沿海省份,高比例外受电挤占电源调节空间并威胁电网安全运行,成为当前亟待解决的问题。为此,以高受电比例的高比例新能源电力系统为研究对象,对高比例新能源电力系统的惯量及调频支撑要求进行分析,并提出针对系统惯量和调频能力需求的储能配置规划模型。首先分析系统的惯量及调频能力要求,其次建立储能参与频率响应的运行模型,基于此,提出了考虑电网惯量及调频要求的储能配置模型。最后以高外受电比例的高比例新能源电力系统为背景仿真验证了配置模型的有效性。

With the continuous increase of the scale of new energy connected to the power grid,the flexibility of the power grid is faced with new challenges.At the same time,in the eastern coastal provinces of China,a high proportion of external power supply squeezes the power supply adjustment space and threatens the safe operation of the power grid,which has become an urgent problem to be solved.question.For this reason,this paper takes the high-ratio new energy power system with high power receiving ratio as the research object,analyzes the inertia and frequency regulation support requirements of the high-ratio new energy power system,and proposes an energy storage configuration plan for the system inertia and frequency regulation capability requirements.Model.Firstly,the inertia and frequency regulation requirements of the system are analyzed,and then the operation model of energy storage participating in frequency response is established.Based on this,an energy storage configuration model considering grid inertia and frequency regulation requirements is proposed.Finally,the validity of the configuration model is verified by simulation on the background of a high-penetration renewable energy power system with a high external power ratio.