考虑电压越限的主动配电网分布式光伏接入能力研究

Research on Distributed Photovoltaic Access Capability of Active Distribution Network Considering Voltage Limits

为了研究影响分布式光伏接入能力的因素,首先提出了分布式光伏接入主动配电网带来的主要问题;然后针对提出的问题对分布式光伏进行建模研究,研究了分布式光伏接入主动配电网电压降落以及电压分布情况;最后以朝阳金杖子66 kV变电站为仿真算例,利用PSCAD/EMTDC电磁暂态仿真软件,以电压越限为约束条件,建立模型并进行仿真。通过仿真结果可以看出影响主动配电网分布式光伏接入能力的因素,并提出相应建议。

In order to study the factors affecting the access capability of distributed photovoltaic,the main problems brought by distributed PV access to active distribution network were put forward firstly.The distributed PV was modeled and studied for the proposed problem.The voltage drop and voltage distribution of the distributed PV access to active distribution network were studied.Finally,taking the 66kV Chaoyang Jinzhangzi Substation as a simulation example,the model was simulated taking the voltage limit as the constraint with PSCAD/EMTDC electromagnetic transient simulation software.The factors affect the distributed photovoltaic access capability of the active distribution network were studied with the simulation results and some relevant suggestions were put forward.