微网分布式电源优化配置研究

发布时间：2018-03-26 22:39

本文选题：微电网　切入点：分布式电源　出处：《华北电力大学》2015年硕士论文

【摘要】：随着日益严重的能源危机和环保压力,开发利用可再生能源是新能源战略的发展趋势。微电网将分散的、不同类型的分布式电源组合起来供电,是充分发挥分布式电源效能、解决分布式发电系统并网问题的有效方式。而面对电网中分布式电源的陆续接入,合理配置微网分布式电源的类型和容量,对保证微网的供电可靠性,降低微网的建设、规划成本,提高微网的环境友好性具有重要意义。基于此本文借鉴国内外电源容量建设相关理论,结合微网的运行特点,深入开展了以下工作：(1)针对独立运行的微电网结构,分析影响其选型和容量配置的关键影响因素,以综合了系统投资费用和运行费用的总净现成本(NPC)最小为优化目标,利用Homer软件对系统进行选型及容量配置的优化,并对影响因素进行灵敏度仿真,验证了分析的正确性。(2)对于独立运行的微电网电源优化配置进行研究,综合考虑系统的经济性、供电可靠性和环保性,分析不同优化模型对电源优化配置的影响,以计及设备投资费用、运行费用、燃料费用、环境费用、可靠性费用的不同组合方式构成的系统等年值费用最低为优化目标函数,建立不同的电源优化配置模型。基于自适应权重粒子群算法,在Matlab中编写优化程序,仿真分析不同优化模型下的电源优化配置情况并验证该容量配置下的电力平衡,验证了所提模型的可行性和正确性。(3)针对并网运行的微电网,同样考虑经济性、供电可靠性和环保性,分析不同发电调度策略对电源优化配置的影响,以计及设备投资费用、运行费用、燃料费用、与主网进行的电能交易费用为主的系统等年值费用经济性指标最低为优化目标函数,建立电源优化配置模型。同样基于自适应权重粒子群算法,在Matlab中编写优化程序,仿真分析不同目标导向的发电调度策略下的电源优化配置情况并验证该容量配置下的电力供电平衡。同时以污染物排放量的治污费用为环保性指标,计算分析调度策略对于微电网环保性能提高的意义。通过算例分析,验证了所提发电调度策略的有效性和正确性。
[Abstract]:With the increasingly serious energy crisis and environmental pressure, the development and utilization of renewable energy is the development trend of new energy strategy. The effective way to solve the problem of grid connection in distributed generation system. In the face of the continuous access of distributed generation in the power network, the type and capacity of distributed micro-grid power supply can be reasonably configured, which can ensure the reliability of power supply and reduce the construction of micro-grid. It is of great significance to plan cost and improve the environmental friendliness of microgrid. Based on this, based on the theory of power capacity construction at home and abroad and combining the operation characteristics of microgrid, the following work is carried out in depth: 1) aiming at the independent operation of microgrid structure, Based on the analysis of the key factors affecting the selection and capacity allocation of the system, taking the minimum net cost of system investment and operation cost as the optimization goal, the system is selected and the capacity configuration is optimized by using Homer software. The sensitivity simulation of the influencing factors verifies the correctness of the analysis. It studies the optimal configuration of the micro-grid power supply which operates independently, considering the economy of the system, the reliability of the power supply and the environmental protection, synthetically considering the economy of the system, the reliability of the power supply and the environmental protection. This paper analyzes the influence of different optimization models on the optimal allocation of power supply. The lowest annual cost of the system, which takes into account the investment cost, operation cost, fuel cost, environmental cost and reliability cost of the system, is the optimal objective function. Based on the adaptive weighted particle swarm optimization (AWPSO) algorithm, the optimization program is written in Matlab to simulate and analyze the optimal configuration of power supply under different optimization models and verify the power balance under the capacity configuration. The feasibility and correctness of the proposed model are verified. (3) considering the economy, reliability and environmental protection of the power supply, the influence of different generation scheduling strategies on the optimal allocation of power supply is analyzed to take into account the investment cost of the equipment. The operating cost, fuel cost, and the energy transaction cost of the system with the main network are the lowest annual cost of the system. The optimal allocation model of the power supply is established. The model is also based on the adaptive weighted particle swarm optimization (AWPSO) algorithm. An optimization program is written in Matlab to simulate and analyze the optimal configuration of power supply under different target oriented generation scheduling strategies and to verify the power supply balance under this configuration. At the same time, the pollution control cost of pollutant emissions is taken as the environmental protection index. The significance of calculating and analyzing the dispatching strategy for improving the environmental performance of microgrid is analyzed. The validity and correctness of the proposed strategy are verified by an example.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM73

【参考文献】