基于多智能体技术的微电网潮流优化控制策略研究

【作者】 王艳；

【导师】 黄挚雄；

【作者基本信息】 中南大学 ， 控制科学与工程， 2011， 硕士

【摘要】 微电网最优潮流是微电网系统规划与运行的有效工具,实现微电网经济、安全运行的全面优化,广泛应用于微电网电压稳定性、安全经济调度、电力市场等方面。微电网最优潮流是一个多变量、多约束、高维数、离散与连续变量共存的混合的非线性优化问题。由于微电网中存在各种分布式电源,为微电网最优潮流的研究带来了机遇与挑战,对传统的电力系统最优潮流算法提出了更多的、新的要求。本文以微电网最优潮流为研究对象,提出了基于多智能体技术的微电网潮流优化控制策略研究。本文首先阐述微电网最优潮流问题研究的目的以及研究现状,根据各种分布式电源的发电原理建立分布式电源的数学模型,比较各种潮流计算方法的优缺点,选择前推回代法对微电网的潮流计算进行推导,建立微电网最优潮流的数学模型。在研究了多种微电网最优潮流的优化算法的基础上,针对微电网结构的特殊性与复杂性,结合多智能体技术的模块设计思想与分层分布式控制系统理论为基础,提出了基于多智能体技术的微电网潮流优化的控制系统,实现微电网潮流优化分布的目标。本文设计一个类似于IEEE14节点的微电网,通过对该微电网春秋季与冬季典型日的发电成本最小的优化控制策略的研究与分析,验证了该方法的实时性、可靠性、智能性以及有效性。最后,总结本文所作的研究工作,并对基于多智能体技术的微电网潮流优化的系统的研究发展前景进行了展望。更多还原

【Abstract】 Optimal power flow of microgrid is the effective tool for planning and operation of microgrid electricity system to realize microgrid economy, safe operation of the comprehensive optimization.It is widely used in the aspects of microgrid voltage stability,security,economic dispatch, market economic operation, electricity market, etc.Microgrid optimal power flow is a multi-variable, multi-constrained,high dimen-sion, the coexistence of discrete and mixed continuous variable nonlin-ear optimization problem. Because there are a variety of distributed generations, the study of microgrid optimal power flow will bring opp-ortunities and challenges,and it would propose more new requirements to the traditional optimal power flow algorithms.This paper taken the microgrid optimal power flow as the research object,and proposed mic-rogrid flow control strategy in optimization operation based on multi-agent technology.This paper firstly described the purpose and research status of mi-crogrid optimal power flow problem,according to the principle of dis-tributed generation established the mathematical model of distributed generation, compared the advantages and disadvantages of various tr-aditional power flow calculation methods,choosed the forward and b-ackward substitution method to derive microgrid flow calculation,and established the mathematical model of microgrid optimal power flow. In the study of various microgrid optimal power flow optimization al-gorithms,according to the particularity and complexity of microgrid s-tructure, with modular design thoughts and hierarchical and distribut-ed control system theory of multi-agent, put forward microgrid flow optimization control system based on multi-agent technology to reali-ze the goal of the optimal distribution of microgrid flow. This paper designed a microgrid similar to the IEEE 14 node, through the micro-grid typical spring and autumn and winter of minimum cost optimal power control strategy research and analysis, proved real-time,reliabi-lity, intelligent and effectiveness of this method. Finally, this paper summarized the research work, and prospected the research and development prospects of microgrid flow optimization system based on multi-agent technology.更多还原