| 引用本文: | 王晶,陈骏宇,蓝恺.基于实时电价的微网PSO最优潮流算法研究[J].电力系统保护与控制,2013,41(16):34-40.[点击复制] |
| WANG Jing,CHEN Jun-yu,LAN Kai.PSO optimal power flow algorithm for a microgrid based on spot power prices[J].Power System Protection and Control,2013,41(16):34-40[点击复制] |
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| 摘要: |
| 针对含多种DER的中压微网系统，提出基于实时电价的微网PSO最优潮流算法。首先推导了包含可中断负荷且与大电网可双向潮流交换的微网经济成本方程及包含能量流失的蓄电池运行约束方程。考虑了目前备受关注的PM10对健康的影响，综合经济、环境、健康成本及多种约束，以微网24小时运行费用最小为目标，建立了微网综合经济运行的优化模型。之后，提出基于牛顿-拉夫逊最优潮流算法的混沌PSO算法，结合某电力市场的实时电价和通过负荷预测获取的负荷曲线，在满足负荷需求的前提下，实现可中断负荷、蓄电池、DER与大电网功率的经济共享。最后，在Matlab环境下编程实现了该混沌PSO最优潮流算法。通过对某中压微网系统4种运行状态下的经济性分析，验证了该方法的正确性和有效性。 |
| 关键词: 微网 PSO 最优潮流 实时电价 |
| DOI：10.7667/j.issn.1674-3415.2013.16.005 |
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| 基金项目:国家自然科学基金主任基金项目(51147010)；国家自然科学基金青年基金项目(51107120)；浙江省新苗人才计划 |
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| PSO optimal power flow algorithm for a microgrid based on spot power prices |
| WANG Jing,CHEN Jun-yu,LAN Kai |
| () |
| Abstract: |
| Aiming at a MV microgrid containing multi DERs, a PSO optimal power flow algorithm based on spot power prices is detailed. Firstly, the economic cost formula, which takes interruptable loads and bi-directional current into account, is deduced. Meanwhile, the battary operation constraints considering energy loss are given. To minimize the 24-hour operation cost, a general economic dispatch model for microgrid is presented. The model considers generation cost, emission cost, health cost (the influence caused by PM10) and various constraints. Secondly, a chaos PSO algorithm based on Newton-Raphson optimal power flow method is proposed. The 24-hour load curve after load forecast, together with spot power price in a power market, is adopted to realize economic power share among interruptable load, battary, DER and main power grid. Finally, the program of PSO optimal power flow algorithm is developed in Matlab environment. Through analyzing the economy of a MV microgrid under four conditions, the correctness and validity of the method is proven. |
| Key words: microgrid PSO OPF spot power prices |
