分布式电源接入配电网的多目标优化控制

Multi-Objective Optimization Control of Distributed-Grid with DG

随着能源新时代的到来,分布式电源技术日趋成熟,配电网的结构日益复杂,传统电网正在向能源互联网的形式变革。当分布式电源大量接入配电网时,需要多台DG并联运行,优化各DG的容量和接入位置,合理地进行功率分配,最大效率地发挥分布式电源"节能减排"的优点,成为现代电力工业技术领域新的研究热点。本文针对含多种分布式电源的配电网,以发电成本最优、CO2排放最少和电能损耗最小为目标,建立经济调度模型和综合环保优化模型。经济调度模型中将各优化目标转化为经济因素,运算出配网总经济效益最优的运行状态;综合环保优化模型中,给各指标值赋予权重,通过各指标权重值的变化来满足配网不同的运行要求。

With the coming of the new era of energy, the maturity of distribute generation technology, the complexstructure of micro-grid, the traditional power grid is revolting towards the energy Internet. While multi-DG operating in parallel, to optimize the capacity and access to the location of DG, to maximize the effectiveness the advantage that saving energy and reducing emission of DG, become a hotspot of modern power industry technology. This article aim at the micro-grid with multi-DG, propose a comprehensive optimizing control method, with the goal of energy and environmental protection, in the operating, with the goal of minimum the generating cost, the CO2 emission, power loss, transform the index into economics fa ctor first, computing the micro-grid total economic best running state, then give weight to each index, establish the multi-objective collaborative optimization model, through the change of various index weight to meet the different require optimization running state.