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Sliding-Mode Observer for IPMSM Sensorless Control by MTPA Control Strategy

机译:通过MTPA控制策略进行IPMSM无传感器控制的滑模观察器

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Abstract: This paper presents a nonlinear sliding mode control (SMC) scheme for interior permanent magnet synchronous motors (IPMSMs).The proposed SMC is able to reduce the settling time without an overshoot by giving a low damping ratio at the initial time and a high damping ratio as the output reaches the desired setpoint. At the same time, it enables a fast convergence in finite time. To improve the efficiency of a system in the constant torque region, the control system incorporates the maximum torque per ampere (MTPA) algorithm. The stability of the nonlinear sliding surface is guaranteed by Lyapunov stability theory. The effectiveness of the proposed nonlinear SMC scheme is verified experimentally. From these experimental results, the proposed nonlinear SMC method reveals a faster transient response, smaller steady-state speed error, and low sensitivity to system uncertainties.
机译:摘要:本文提出了一种用于室内永磁同步电动机(IPMSM)的非线性滑模控制(SMC)方案,该SMC通过在初始时间提供低的阻尼比和较高的阻尼来减少建立时间而不会产生过冲。输出达到所需设定值时的阻尼比。同时,它可以在有限时间内快速收敛。为了提高恒定转矩区域中的系统效率,控制系统采用了最大每安培转矩(MTPA)算法。 Lyapunov稳定性理论保证了非线性滑动表面的稳定性。实验证明了所提出的非线性SMC方案的有效性。从这些实验结果来看,所提出的非线性SMC方法显示出更快的瞬态响应,更小的稳态速度误差以及对系统不确定性的低灵敏度。

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