含各种分布式电源的潮流计算

分布式电源并入配电网区别于传统配电网的模式,对配电网规划、电能质量、网络损耗等都会带来一定的影响[1-4]。为了尽可能发挥分布式发电的优势,降低其并网带来的不利影响,对微型燃气轮机、风力发电、燃料电池和光伏发电等分布式电源模型进行分析[5-8],对PQ型、PV型、PI型和PQ(V)型节点进行处理[9-12],通过改进的前推回代法对各种分布式电源有效并入配电网进行潮流计算,以IEEE33节点算例为基础,应用Matlab仿真软件进行测试,结果表明该方法的有效性及可行性。

Research on Distributed Generations

Distributed generation integraling into the distribution network is different from that of traditional distribution network model, il would bring certain influencc on the distribution network planning, power quality and network loss. In order to take the advantages of distributed generation as far as possible, and reduce the adverse effects of the grid, this paper analyses distributed power model including thc micro gas turbine, wind power generation, fnel cell and photovohaie power generation, and process PQ, PV, PI and PQ （V） node. By improved forward-baekward sweep metilod, power flow calculation for distributed generation into the distribution network is made. Based on IEEE33 node, it applies Matlab softare to make simulation calculation and test, the resuhs show thai the method is effective and feasible.