光伏发电并网运行风险评估

Solar Energy Power Generation Grid Operation Risk Assessment

随着分布式能源的快速发展,风力电、光伏太阳能的发电容量持续快速增长,部分地区电网新能源出力占比大大提高。智能电网作为未来电力发展的方向,微多网的发展将是其关键所在,太阳能发电的加入给电力系统注入了新的活力,但同时更多且更高程度的不确定因素对电力系统稳定运行产生很大的影响。以半不变量级数展开法入手对并网系统进行随机潮流研究,继而对系统运行过程中所面临的风险因素进行评估。分析光伏发电系统运行中的众多不确定因素,以及风险整定值对应的指标体系,并通过概率统计方法将风险整定值数字化。

With the rapid development of distributed energy,the power generation capacity of wind power and Solar energy solar energy continues to grow rapidly,and the proportion of new energy output in some regions has been greatly improved.Smart grid as the direction of future power development,the development of micro-multi-network will be the key.The addition of microgrid has injected new vitality into the power system,but at the same time more and higher levels of uncertainty have a major impact on the power system.This paper starts with the semi-invariant series expansion method to conduct random power flow exploration on the system,and evaluates the risk factors faced during the operation of the system.For many uncertain factors in the operation of the multi-micro network system,the index system corresponding to the risk setting value is analyzed,and the risk setting value is digitized by the probability and statistics method.