Optimal Reactive Power Dispatch of a Full-Scale Converter Based Wind Farm Considering Loss Minimization
Optimal Reactive Power Dispatch of a Full-Scale Converter Based Wind Farm Considering Loss Minimization
复制标题
考虑损耗最小化的全尺寸变流器风电场无功优化调度
DOI：
10.1016/j.renene.2019.02.037
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发表时间：
--
期刊：
影响因子：
8.7
通讯作者：
黄琦
中科院分区：
文献类型：
--
作者：
王妮;李坚;胡维昊;黄琦
随着风力发电的发展，要求风电场向电力系统提供无功功率。对于基于永磁同步发电机（PMSG）的大型风电场（WF）来说，利用每个风力涡轮机（WT）内部的电力电子设备产生无功功率可能是一种经济的方法。本文提出了一种以功率损耗最小为目标的PMSG WF无功优化调度方法。同时考虑了wt内部损耗和传输系统损耗。采用粒子群优化（PSO）算法寻找每个小波变换的无功参考值，使小波变换的总损耗最小。在案例研究中使用了一个具有25个 MW PMSG WTs的WF，它们排列在5行5列中。并将两种传统无功调度策略与本文提出的策略在不同场景下进行了综合比较，结果表明本文提出的策略在所有研究情况下均比其他两种传统策略获得更低的功率损耗。
With the development of wind power, wind farms are required to provide reactive power to the power system. For permanent magnet synchronous generator (PMSG) based large wind farms (WF), it may be an economical way to generate reactive power using the power electronic devices inside each wind turbine (WT). In this paper, an optimal reactive power dispatch of PMSG WF is proposed to minimize the power loss. Both the losses inside WTs and the losses of transmission system are all considered. Particle swarm optimization (PSO) algorithm is adopted to find the reactive power references of each WT which makes the total loss of WF minimal. A WF with 25 5 MW PMSG WTs arranged in 5 rows and 5 columns is used in the case study. And two traditional reactive power dispatch strategies are compared comprehensively with the proposed strategy at different scenarios, the results have shown that the proposed strategy obtains lower power loss than the other two traditional strategies in all the studied cases.