分布式光伏发电系统对配电网电压的影响分析

Influence Analysis of PV System to Voltage of Distribution Network

分布式光伏发电系统的接入将改变配电网的拓扑结构,给配电网带来一系列的影响。分析了分布式光伏发电系统的接入对配电网的电压、网络损耗以及保护的影响。通过在PSCAD/EMDTC软件中搭建的典型模型,研究与验证了单个分布式光伏发电系统接入链式配电网对电压的影响机理。

The access of distributed photovoltaic generation system will change the distribution network topology,as well as bring a range of effects on the distribution network.In the case of distributed PV system accesses to distribution network,the impact of network voltage,network losses and distribution network protection are analyzed.As a typical model is built in PSCAD/EMDTC software,the impact characteristic of voltage when single distributed photovoltaic system has access to chain distribution networks is researched and demonstrated.