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基于多场景无功裕度的风电接入电力系统分区方法

发表时间:2019-04-30  浏览量:245  下载量:13
全部作者: 黄驰,王韶
作者单位: 重庆大学电气工程学院;中电建水环境治理技术有限公司
摘 要: 传统无功电压分区算法常采用无功灵敏度或电气距离作为主要指标,难以体现电压调节过程与风电场发电。针对这些问题,将节点电压偏移、风电场出力分布、区域内部节点电压灵敏度及无功储备这些因素综合考虑,提出一种基于静态电压调节过程的无功裕度指标及适应该指标的分区算法。分区算法首先在风电出力期望的场景下,利用无功功率潮流追踪原理,实现满足区域平衡的预分区方案。其次将风电场发电离散化为多个场景,在此基础上计算分区的无功裕度,通过分区聚类而实现最终的无功电压分区。通过IEEE39节点标准测试系统对算法进行仿真,仿真结果验证了算法的可行性与优越性。
关 键 词: 电气工程;无功裕度;风电场出力场景;潮流追踪;静态电压调节;分区聚类
Title: Partition method for wind power integration system based on multi-scenario reactive power margin
Author: HUANG Chi, WANG Shao
Organization: School of Electrical Engineering, Chongqing University; Powerchina Water Environment Governance
Abstract: In the traditional reactive voltage partitioning algorithms, reactive power sensitivity or electrical distance are often used as the main indices, which is difficult to reflect the voltage regulation process and wind farm power generation. In response to these problems, a reactive power margin index is presented based on the progress of static voltage regulation and its corresponding partitioning algorithms. Through this process, voltage deviation, probability distribution of wind power, regional bus voltage sensitivity and the reactive power reserve are all considered synthetically. In the new partitioning algorithm, the pre-partition scheme is firstly established by reactive power tracing principle to realize the regional balance under the wind power expectation scenario. Secondly, the wind power generation is discretized into multiple scenarios and then each area’s reactive power margin is calculated by algorithm determining. The final reactive voltage partition scheme could be reached by clustering the areas. The simulation result of IEEE39 node standard testing system showed the perfect feasibility and superiority of the new algorithm.
Key words: electrical engineering; reactive power margin; wind power output scene; flow tracing; static voltage regulation; clustering
发表期数: 2019年4月第2期
引用格式: 黄驰,王韶. 基于多场景无功裕度的风电接入电力系统分区方法[J]. 中国科技论文在线精品论文,2019,12(2):292-302.
 
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