酒泉地区大规模风电无功电压控制策略研究
发布时间：2018-12-12 09:00
【摘要】：酒泉风电基地已成为我国规划建设的第一座千万千瓦级风电示范基地,大规模风电接入电网后,其随机性和波动性对大规模风电基地的无功电压控制提出了新的要求。本论文以酒泉风电基地为背景,对大规模风电并入电网的无功电压协调控制策略进行了详细的研究。首先,研究了不同风电机组的无功调节特性和不同无功补偿设备的调节特性,并以此为基础分析研究了酒泉电网的电压运行特性,基于分层分区的原则,将酒泉电网分为风电场层,集群层和电网层进行特性研究。其次,本文基于酒泉电网的电压运行特性,提出适应酒泉地区大规模风电并网的三级电压控制模式,基于这种三级模式提出了适应酒泉地区大规模风电的无功电压控制策略,力求达到对酒泉地区电网无功电压控制的快速、准确、高效的目标。其中包括基于无功优化算法的三级优化控制策略；基于灵敏度算法的二级电压区域控制策略；基于本地控制的一级电压控制策略。最后本文采用酒泉风电基地电网实际数据,对上述提出的酒泉地区大规模风电无功电压控制策略进行仿真计算,验证所提控制策略的准确性和有效性。
[Abstract]:Jiuquan wind power base has become the first demonstration base of wind power of ten million kilowatts in our country. After large-scale wind power is connected to the power grid, its randomness and fluctuation put forward new requirements for reactive power and voltage control of large-scale wind power base. In this paper, based on Jiuquan wind power base, the reactive power and voltage coordinated control strategy of large-scale wind power system is studied in detail. First of all, the reactive power regulation characteristics of different wind turbines and the regulation characteristics of different reactive power compensation equipment are studied. Based on this, the voltage operation characteristics of Jiuquan power network are analyzed and studied, which is based on the principle of stratification and partitioning. Jiuquan power grid is divided into wind farm layer, cluster layer and grid layer. Secondly, based on the voltage operation characteristics of Jiuquan power grid, a three-stage voltage control model is proposed for large-scale wind power grid connection in Jiuquan area, and a reactive voltage control strategy for large-scale wind power generation in Jiuquan area is proposed based on the three-level voltage control mode. Strive to achieve the Jiuquan power grid reactive voltage control fast, accurate, efficient goals. It includes three-level optimal control strategy based on reactive power optimization algorithm, two-stage voltage region control strategy based on sensitivity algorithm and primary voltage control strategy based on local control. Finally, by using the actual data of Jiuquan wind power base, the paper simulates the control strategy of large scale wind power in Jiuquan area, and verifies the accuracy and effectiveness of the proposed control strategy.
【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】：TM761.12;TM614
本文编号：2374300
[Abstract]:Jiuquan wind power base has become the first demonstration base of wind power of ten million kilowatts in our country. After large-scale wind power is connected to the power grid, its randomness and fluctuation put forward new requirements for reactive power and voltage control of large-scale wind power base. In this paper, based on Jiuquan wind power base, the reactive power and voltage coordinated control strategy of large-scale wind power system is studied in detail. First of all, the reactive power regulation characteristics of different wind turbines and the regulation characteristics of different reactive power compensation equipment are studied. Based on this, the voltage operation characteristics of Jiuquan power network are analyzed and studied, which is based on the principle of stratification and partitioning. Jiuquan power grid is divided into wind farm layer, cluster layer and grid layer. Secondly, based on the voltage operation characteristics of Jiuquan power grid, a three-stage voltage control model is proposed for large-scale wind power grid connection in Jiuquan area, and a reactive voltage control strategy for large-scale wind power generation in Jiuquan area is proposed based on the three-level voltage control mode. Strive to achieve the Jiuquan power grid reactive voltage control fast, accurate, efficient goals. It includes three-level optimal control strategy based on reactive power optimization algorithm, two-stage voltage region control strategy based on sensitivity algorithm and primary voltage control strategy based on local control. Finally, by using the actual data of Jiuquan wind power base, the paper simulates the control strategy of large scale wind power in Jiuquan area, and verifies the accuracy and effectiveness of the proposed control strategy.
【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】：TM761.12;TM614
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