多微电源混合系统在微电网中最优定位和规划研究

发布时间：2018-04-08 21:32

本文选题：分布式电源　切入点：微电网　出处：《电机与控制学报》2017年05期

【摘要】：合理利用多种形式能源为负荷供电可以有效提高微电网运行经济和可靠性,然而目前微电源的前期选址定容和后期优化运行均孤立考虑,为了充分发挥其灵活供电能力,提出一种基于光伏、电池组以及柴油发电机的混合供电系统规划策略。首先,给出了光伏-电池组-柴油发电机混合供电系统能量运行方式,提高其运行经济性和灵活性;其次,提出了综合考虑多电源定位规划和运行优化的多目标优化模型,不仅减小总投资、运行维护成本、上级电网输送功率引起的网损及紧急情况引起的切负荷发生概率,同时可以使剩余能量反送给上级电网;最后,给出了基于粒子群优化人工蜂群算法改进求解方法,有效提高收敛速度。仿真结果证明,所提出的规划策略可显著提高微电网运行的经济性和可靠性。
[Abstract]:Reasonable use of various forms of energy for load power supply can effectively improve the operation economy and reliability of microgrid. However, at present, in order to give full play to its flexible power supply capability, the current micro-power supply system is considered in isolation for its pre-site location and capacity determination and for its later optimal operation.A hybrid power supply system planning strategy based on PV, battery pack and diesel generator is proposed.Firstly, the energy operation mode of photovoltaic battery pack diesel generator hybrid power supply system is presented to improve its operation economy and flexibility. Secondly, a multi-objective optimization model considering multi-source location planning and operation optimization is proposed.It not only reduces the total investment, operation and maintenance cost, network loss caused by the transmission power of higher power grid and the probability of cutting load caused by emergency situation, but also causes the residual energy to be sent back to the higher power network.An improved algorithm based on particle swarm optimization (PSO) is presented to improve the convergence rate.Simulation results show that the proposed planning strategy can significantly improve the economy and reliability of microgrid operation.
【作者单位】：沈阳工业大学电气工程学院;国网辽宁省电力有限公司电力科学研究院;中国电力科学研究院;
【基金】：国家863计划项目(2015AA050403) 国家电网公司科技项目(广域分布式电源动态管控与运行分析关键技术研究与开发)
【分类号】：TM715;TM727

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