摘要
微网能够充分发挥可再生能源发电单元的经济效益和社会效益。然而,微网中存在的间歇式、随机性的发电单元使得微网难以稳定运行,储能装置的合理使用是实现微网稳定运行的有效手段。本文在计及储能装置对负荷削峰填谷的基础上,考虑了发电单元的发电费用、运行维护费用和环境治理费用,建立了微网环保经济运行的优化数学模型。以IEEE-14节点配电系统为微网运行的网络结构,并将网络的潮流方程作为约束条件之一,采用改进微分进化算法实现微网的环保经济运行。仿真结果验证了模型的准确性和合理性。
Microgrid plays an important role in economic and social benefits of the renewable energy. However, microgrid exists the generating unit of interval and randomicity which make microgrid not work stably, and the rational use of energy storage device is an effective means to realize micro-grid stable operation. Based on the energy storage device to peak load shift, considering fuel cost, maintenance cost and the cost of the emission of each distributed generator, this paper established the micro-grid environmental and economic operation optimization mathematical model. Taking IEEE-14 node in distribution system as the network structure of micro-grid, and taking the power flow equations of network as one of the constraint conditions, the improved differential evolution algorithm was taken as a method to achieve Micro-grid environmental and economic operation. The simulation results prove the accuracy and rationality of the model.
出处
《电测与仪表》
北大核心
2013年第10期73-78,共6页
Electrical Measurement & Instrumentation
基金
国家电网科技计划项目(国家电网科(2012)575号文)
关键词
微电网
优化运行
潮流方程
改进微分进化算法
削峰填谷
micro-grid, optimal operation, power flow equations, improved differential evolution algorithm, peakload clipping
