新能源分布式发电储能系统相关基础研究_ 能量管理策略研究 毕业设计.doc

题 目： 新能源分布式发电储能系统相关 基础研究- 能量管理策略研究 系 别： 专业班级： 姓 名： 学 号： 指导教师： 职 称： PAGE I 摘要 以风力发电、太阳能光伏发电为代表的间歇性可再生能源发电系统的功率输出存在不连续，不稳定，随气候变化而变化的特点，新能源在电网中比重的增加的今天，会对同步系统产生许多负面影响。 储能技术为间歇性可再生能源系统提供了能量缓冲、平衡和后备的手段，是改善间歇性可再生能源利用的有效途径。在各种储能技术中，铅酸蓄电池依靠其技术成熟、可靠性高、成本较低；超级电容器具有功率密度大、充电能量密度高的优点，适合大电流和短时间充放电的场合；本文将主要围绕铅酸蓄电池储能技术和超级电容器储能技术在间歇性可再生能源发电系统的相关应用展开研究。 在分析电压源电子电力变换器蓄电池储能系统基本原理的基础上，建立其数学模型，为实现风电机组有功功率输出和稳定性控制的提高，提出控制策略。在串并联型超级电容器储能系统原理上，建立其数学模型，提出串联和并联补偿控制器调节风电场输出功率不稳定问题。仿真结果表明可以提高风电机在网络故障的稳定性。 关键词：风力发电；储能技术；超级电容器；控制策略；新能源 ABSTRACT With wind power, solar photovoltaic power generation as a representative of intermittent renewable energy power system of power output existence, unstable, with discontinuous characteristics of climate change and change in power grid, new energy resources, increase the proportion of synchronization systems today will produce many negative impacts. Storage technology for intermittent renewable energy system provides the energy buffer, balance and backup means, improve intermittent renewable energy use in an effective way.In various storage technology, depending on its mature technology of lead-acid batteries, high reliability and low cost; Super capacitors have power densities, charging the advantages of higher energy density, suitable for large current and short time charge-discharge circumstance; This paper will focus on lead-acid battery energy storage technology and super capacitor storage technology in intermittent renewable power generation system on the related applications. On the analysis of the voltage source electronic power converter battery energy storage system, based on the basic principle of establishing its mathematical model for the realization of the wind generator active power output and stability control, this paper puts forward the improving control strategy. In parallel connectio