【作者】 郭伟钊；

【导师】 李芬花；

【作者基本信息】 华北电力大学（北京） ， 水文学及水资源， 2011， 硕士

【摘要】 风能、太阳能等可再生能源都是受天然条件制约的间歇性随机性能源,大规模发展风能、太阳能会对电力系统产生较大影响,配套建设抽水蓄能电站,可将随机性电源转化成可靠电源,有效降低对电网的影响。本文主要探讨配套建设抽水蓄能电站技术经济上的可行性。本文首先分析了抽水蓄能电站工作特性,风电场和光伏电站出力特性和风光互补特性。提出在风电和光伏发电互补的基础上,配置抽水蓄能电站,组成抽水蓄能电站与风电场和光伏电站联合发电的运行模型。为了能够更有效地提高风力发电和光伏发电的稳定性和调度性,需要预报提前一段时间内的风电场和光伏电站的输出功率,采用支持向量机方法预测了光伏发电系统短期输出功率,并取得了较好的预测效果。基于特性分析和功率预测,研究联合运行系统内部抽水蓄能电站的运行规划问题,以联合运行系统效益最大化为目标函数,考虑抽水蓄能电站的库容、电网传输能力等约束条件,建立抽水蓄能电站调度的数学模型,采用遗传算法,研究了联合运行系统中抽水蓄能电站的调度问题。本文最后针对联合模型的特点,采用机会成本的方法,分析抽水蓄能电站的替代效益,定性和定量地分析了静态效益和动态效益。模型结果表明抽水蓄能同风电、光伏发电的联合运行是开发利用风能资源、太阳能资源的有效途径,不但提高了风电场、光伏电站的效益,同时实现了平滑风电场、光伏电站的功率输出,具有可观的经济效益和社会效益。更多还原

【Abstract】 Renewable energy including wind energy and solar energy is considered as intermittent randomness energy restricted by natural conditions. Large-scale development of wind energy and solar power system will have a greater negative influence on power system, but can be converted into a reliable power by pumped storage power station, to achieve the goal of effectively reducing the impact on the grid. This paper studies on the feasibility of supporting construction pumped storage power station.This paper analyzes the performance characteristics of pumped storage power stations, output characteristics of wind farms, photovoltaic plant and wind-PV hybrid power supply system. Based on complementation of wind farms and photovoltaic plant, the paper tries to configure pumped storage power station for wind farms and photovoltaic plant, composes hybrid power system. In order to improve stability and schedulability of the wind power and photovoltaic power generation more efficaciously, the paper need to forecast output power of the wind farm and photovoltaic power stations, predicts the short-term power output of photovoltaic power generation system using support vector machines, and achieves good results. Based on analysis and forecast of output power, under the premise of maximize the use of wind power and photovoltaic power, considering the constraints of storage capacity and power transmission capacity, this paper establishes an optimization model of the pumped storage power station suited to characteristics of china, uses genetic algorithm for solving the model. Finally, the paper uses method of opportunity cost, analyzes static benefits and dynamic benefits of pumped storage power stations by means of qualitative and quantitative.The results show that coordinated operation of pumped storage station and wind-PV power system is an effective way of development and utilization of wind energy resources and solar resources, not only increasing benefit of wind farm and photovoltaic plant, but also smoothing output of wind farm and photovoltaic plant, with considerable economic and social benefits.更多还原