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首页> 外文期刊>Journal of Residuals Science & Technology >Sliding Mode Control Strategy of the Three Phase Voltage Source Inverter with Disturbance Observer
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Sliding Mode Control Strategy of the Three Phase Voltage Source Inverter with Disturbance Observer

机译：带干扰观测器的三相电压源逆变器的滑模控制策略

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摘要

Aiming at the influence of the parameters uncertainty and external disturbance influence on the control performance of the three phase voltage source full-bridge inverter, output filter capacitor voltage and its derivative were used as state variables, the disturbance observer with the proportion integral was built to estimate the system state efficiently, and the adverse effect to power system was suppressed. Based on the theory of vector control, a nonsingular terminal sliding mode controller and its control law were designed, which avoid the singular problem existing in the traditional terminal sliding mode and improve the response speed and steady accuracy of the system. Finally, the stability of the system was proved by choosing appropriate Lyapunov functions. Simulation and experimental results show that the method combining the disturbance observer with the sliding mode control has strong robustness against the outside disturbance, could improve the tracking precision and optimize the dynamic performance.
机译：针对参数不确定性和外部干扰对三相电压源全桥逆变器控制性能的影响，以输出滤波电容电压及其导数为状态变量，构建了具有比例积分的干扰观测器有效地估计系统状态，并抑制了对电力系统的不利影响。基于矢量控制理论，设计了一种非奇异的终端滑模控制器及其控制律，避免了传统的终端滑模存在奇异的问题，提高了系统的响应速度和稳态精度。最后，通过选择适当的Lyapunov函数证明了系统的稳定性。仿真和实验结果表明，将干扰观测器与滑模控制相结合的方法具有较强的鲁棒性，可以提高跟踪精度，优化动态性能。

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