太阳能光热与风力发电协调优化控制研究

发布时间：2018-04-09 02:02

本文选题：光热发电　切入点：风力发电　出处：《计算机仿真》2017年10期

【摘要】：太阳能光热发电和风力发电的输出功率存在较大的随机性和波动性,考虑两者在时间上的输出功率互补性,充分利用光热发电的储热装置可形成光热和风能联合运行发电系统。提出了一种太阳能光热与风能互补发电的功率协调控制策略,从运行机理入手,在传统光热电站运行约束的基础上,提出简化后具有良好适应性的优化模型。根据联合系统输出功率波动方差最小和联合系统并网效益最大化构建多目标函数,采用法线边界交叉法的多目标优化协调控制光热发电和风力发电的输出功率。最后利用Matlab软件对所提模型及协调控制策略进行了仿真验证,结果表明,提出的优化策略可提高太阳能光热和风能的利用率和减小并网功率的波动,同时增加了光热风能联合发电系统经的济效益。
[Abstract]:The output power of solar photothermal power generation and wind power generation is random and fluctuating. Considering the complementarity of output power in time, the thermal storage device of photothermal power generation can form a combined photothermal and wind power generation system.This paper presents a coordinated power control strategy for solar photothermal and wind power generation. Based on the operation mechanism and the operating constraints of traditional photothermal power plants, a simplified optimal model with good adaptability is proposed.According to the minimum variance of the output power fluctuation of the joint system and the maximization of the benefit of the combined system, the multi-objective function is constructed, and the output power of photothermal power generation and wind power generation is controlled by multi-objective optimization and coordination using the normal boundary crossing method.Finally, the proposed model and coordinated control strategy are simulated by using Matlab software. The results show that the proposed optimization strategy can improve the utilization ratio of solar energy, heat and wind energy, and reduce the fluctuation of grid-connected power.At the same time, the economic benefit of the combined photothermal wind power generation system is increased.
【作者单位】：东南大学电气工程学院;中国电力科学研究院新能源与储能运行控制国家重点实验室;
【基金】：国家自然科学基金资助项目(51577030) 国家电网公司科技项目资助(NY71-15-042)
【分类号】：TM61

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