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| Synchronous control on inverter system of grid connected high-power wind generators with nonlinear and pulse disturbance#br# |
| LIU Jiang1, ZHANG Long1, JIANG Zhong-chuan2, LI Yan-qing1 |
1. College of Mathematics and System Science, Xinjiang University, Urumqi 830046, China;
2. Goldwind Sci and Tech Co, Ltd, Urumqi 830026, China
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Abstract A kind of synchronization control problems of grid system connected high-power wind generators with nonlinear pulse disturbance was investigated in this paper. By using the Kirchhoff's law, a class of mathematical model of grid side converter system of wind generators was established. Meanwhile, an appropriate feedback synchronization controller was designed. By the theory of Lyapunov stability, the e?ectiveness of synchronous controller was validated. In order to restrain the nonlinear pulse disturbance in grid system connected with wind generators, make the current generated by wind generators synchronize the current in grid, an optimal algorithm was obtained. Finally, the theoretical results were demonstrated by the Simulink in Matlab.
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Received: 01 November 2016
Published: 01 December 2018
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大功率风电并网变流器系统中非线性脉冲扰动的同步控制研究
研究了一类大功率风力发电并网中具有非线性脉冲扰动的同步控制问题. 利用Kirchhoff定律建立了一类风力发电系统电网侧变流器的数学模型. 设计了适当的反馈同步控制器, 借助Lyapunov稳定性理论, 验证了该同步控制器的有效性. 给出了一类最优算法来抑制并入电网电流中的非线性脉冲扰动, 使得风力发电机所产生的电流和电网的电流同步. 最后通过Matlab中的Simulink进行了仿真设计研究, 验证了该理论结果的有效性.
关键词：
非线性扰动,
非线性脉冲扰动,
Lyapunov函数,
反馈同步控制器,
误差系统
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