基于RTDS的风力机自适应转速启动控制的仿真研究

贺文; 王小立; 王伟; 张彦兵

引用本文:	贺文,王小立,王伟,等.基于RTDS的风力机自适应转速启动控制的仿真研究[J].电力系统保护与控制,2017,45(22):152-157.
	HE Wen,WANG Xiaoli,WANG Wei,et al.Simulation research on the adaptive speed start control of the wind turbine based on RTDS[J].Power System Protection and Control,2017,45(22):152-157

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基于RTDS的风力机自适应转速启动控制的仿真研究
贺文¹,王小立¹,王伟 ²,张彦兵²
(1.国网宁夏电力公司，宁夏银川750001;2.许昌开普检测技术有限公司，河南许昌 461000)

摘要:

双馈风机和永磁直驱风机等风电装置具有较大的转动惯量，在启、停过程中存在较大机械能的储存和释放。为降低风电系统启、停阶段对电网的冲击并保护风机装置不受损害，提出风机自适应转速启动及转速分段控制停机策略。自适应转速启动:对应不同风速，分别配置风力机最优转速启动值，风力机启动过程结束后切换为最大功率跟踪(MPPT)控制策略。停机控制:风力机停机阶段，控制策略由MPPT控制切换至转速控制，待风力机转速降低到设定值，风电装置停机并脱网。基于RTDS建立了永磁直驱风机直流并网的仿真模型，设计风电系统启动和停机仿真算例，试验结果表明了该启停控制策略的有效性。

关键词: 自适应转速控制启停控制永磁直驱风机 RTDS

DOI：10.7667/PSPC161738

分类号:

基金项目:宁夏电网公司科技项目(SGNX0000DKJS1400962)

Simulation research on the adaptive speed start control of the wind turbine based on RTDS

HE Wen¹,WANG Xiaoli¹,WANG Wei²,ZHANG Yanbing²

(1. State Grid Ningxia Electric Power Company, Yinchuan 750001, China;2. Xuchang KETOP Testing Technology Co., Ltd, Xuchang 461000, China)

Abstract:

The wind power device such as DFIG and PMSG has large moment of inertia because of the large mechanical energy storage and release during the process of starting and stopping. In order to reduce the negative effect on the power grid and prevent the wind turbine from damage, a new wind turbine self-adaptive rotational speed start and segment control shutdown strategy is proposed. Adaptive rotational speed start control:corresponding to different wind speed, the optimal starting speed of wind turbine is respectively configured, and the maximum power point tracking (MPPT) control strategy is switched after the start process of wind turbine. Shutdown control:during the wind turbine shutdown stage, the control strategy is switched from MPPT control to speed control. During wind turbine shutdown stage, control strategy is switched to rotation speed control from MPPT control. When the wind turbine’s speed is reduced to the set value, the wind power devices stop and cut down from the power grid. Simulation model of PMSG’s DC grid-connection is built based on RTDS, and the simulation tests of wind power system’s startup and shutdown are designed. Simulation results demonstrate that the start/stop control strategy is effective.

Key words: adaptive speed control start/stop control PMSG RTDS

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