考虑输变设备的分频风力发电系统最优控制

ZHU Weiping; WANG Xiuli; WANG Xifan

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考虑输变设备的分频风力发电系统最优控制

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- 考虑输变设备的分频风力发电系统最优控制
- Automation of Electric Power Systems Vol. 34, Issue 2, Pages: 93-97(2010)
- 作者机构：
  
  西安交通大学电气工程学院,陕西省,西安市,710049
- 作者简介：
- 基金信息：
- DOI：
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- Published：2010
- 稿件说明：
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ZHU Weiping, WANG Xiuli, WANG Xifan. [J]. Automation of electric power systems, 2010, 34(2): 93-97.
DOI：

ZHU Weiping, WANG Xiuli, WANG Xifan. [J]. Automation of electric power systems, 2010, 34(2): 93-97. DOI：

摘要

对以分频发输电技术为基础的变速变频（VSVF）运行的分频风力发电系统，在考虑分频输电线路和升压变压器的基础上，对其基于矢量控制技术的无风速测量最优功率输出的控制策略进行了研究。在PSCAD中建立分频风力发电系统各部分的动态模型，对分频风力发电系统的风能利用系数、风电机组输出功率和线路的损耗进行仿真分析，并与常规恒速恒频（CSCF）风电场进行比较，结果表明该控制策略可以在自然风速波动的情况下，实现无风速测量下的最优风能捕获、最优功率输出和减小输电线路功率损耗。

Abstract

A variable-speed variable-frequency（VSVF） operational mode for the induction generator wind turbine system is proposed based on the fractional frequency power generation & transmission technique. A control strategy aimed at optimizing wind power output using the vector control technology is introduced without measuring the wind velocity. A VSVF wind-power system model is developed with PSCAD/EMTDC， considering the effect of wake effects on the wind turbine coefficient. Based on the model， two types of control strategy， i.e. optimal wind power output control strategy and optimal wind power capturing control strategy are analyzed and compared. Simulation results demonstrate that the optimal wind power output control strategy is more efficient than the optimal wind power capturing control strategy in improving the output power quality.

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