摘要
新能源的大规模接入改变了电网原有的潮流分布、线路传输功率与整个系统的惯量,因此,新能源接入后电网的电压稳定性及频率稳定性都会发生变化。分析研究光伏发电系统的并网仿真模型,建立光伏并网数学模型,并通过P-V曲线对光伏发电系统接入电网产生安全稳定性影响的机理进行分析,进行大规模光伏接入对电网稳定性影响的仿真分析,包括静态电压稳定和频率稳定。以某典型的区域电网为例,验证了所提模型及理论分析的有效性。
Large-scale access of new energy has changed the original trend distribution, power line transmission and the moment of inertia of the whole system, so the new energy grid voltage stability and frequency stability after access will change. Analysis and research the grid simulation model of photovoltaic power generation system, the mathematical model of the photovoltaic (pv) grid and security stability influence on photovoltaic power generation system connected to the elec-tricity grid based on P-V curve is analyzed, the mechanism of large-scale photovoltaic effect on the stability of power grid access to the simulation analysis, including static voltage stability and frequency stability. Take a typical regional power grid as an example to validate the effectiveness of the proposed model and theoretical analysis.
出处
《软件》
2014年第11期106-112,共7页
Software
关键词
光伏发电
电压稳定
频率稳定
Photovoltaic power generation
Voltage stability
Frequency stability
