基于HOMER仿真的配电网分布式光伏发电优化

随着光伏产品成本的降低,配电网分布式光伏发电近年来发展迅速。但其储能容量、天气因素干扰不尽理想。而且在晚间用电高峰期不能有效的负担部分用电负荷,不利于配电网的频峰调整。提出了一种利用抽水蓄能和分布式光伏发电相结合的方案,在一定的运行方式下,使得配电网分布式光伏发电系统在储能容量和调峰能力方面有了大大的提升,并具备了夜间发电的能力。按照实际参数,年平均日照强度、天气指数、设备具体参数、造价、上网实时电价、用电电价等通过HOMER建模仿真,并将单一分布式光伏发电相和抽水蓄能、分布式光伏发电相结合的两种方案模型建模仿真比较。论证了优化后的抽水蓄能与分布式光伏发电相结合方案的优越性,同时也计算出在优化方案在特定的运行方式下,相比单一配电网分布式光伏发电,成本回收期只有略微延长,证明了优化方案的可行性。

An Optimization of Distributed Solar Power Generation in Distribution Network Based on HOMER Simulation

Along with reducing the cost of solar power products, solar power generation in distribution network has developed rapidly in recent years. But the storage capacity and the interference by weather is a problem. Including it can not effectively the burden of electricity load in the evening peak electricity and is not conducive to the peak adjustment of distribution network. This writing includes an experimental study on combining of pumped storage and distributed solar power generation. Under a certain way, this optimization improves the storage capacity and peaking capability, and makes the solar power generation system in distribution network to have the ability of running in the evening. The writing references the actual parameter, annual average monthly sunshine intensity and weather index, parameters of equipment, the cost of equipment,electricity spot price, power price,and so on, simulates by HOMER software according to the actual parameters, and compares optimization with distributed solar power generation alone. Finally, it gets the result that the optimization of combining pumped storage and distributed solar power generation system is better and calculates that the period of cost recovery prolongs increased a little, which can prove the feasibility of the optimization