This article presents an efficient method for control of a solar water pumping system consisting of an induction motor drive (IMD) with a model reference adaptive system (MRAS) based adaptive mechanism of speed estimation. An improved perturb and observe control technique is implemented to achieve maximum power point tracking. The gating signals are produced by utilizing a space vector pulsewidth modulation scheme for a three-phase inverter. An improved third order integrator (ITOI) is proposed for adaptation of flux for improvement in the performance of the drive. The MRAS is used for estimation of slip speed and synchronous speed two estimated speed signals are used to generate the motor speed. The proposed control methodology with the MRAS-based reactive power technique for the estimation of speed has improved the system stability for a wide range of drive speed. This system with a single-stage photovoltaic (PV) topology and switching logic obtained from space vector modulation operating three-phase voltage source inverter fed IMD with a pump as a load is designed and implemented in MATLAB/Simulink. The suitability of the developed system is validated through experimentation in the laboratory.

中文翻译：

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基于无功功率的 MRAS，用于估计具有改进的抽水反馈线性化的太阳能馈电感应电机的速度


本文提出了一种控制太阳能抽水系统的有效方法，该系统由感应电机驱动器 (IMD) 和基于模型参考自适应系统 (MRAS) 的自适应速度估计机制组成。采用改进的扰动和观察控制技术来实现最大功率点跟踪。选通信号是通过利用三相逆变器的空间矢量脉宽调制方案来产生的。提出了一种改进的三阶积分器（ITOI）来适应磁通，以提高驱动器的性能。 MRAS 用于估计滑差速度和同步速度，两个估计速度信号用于生成电机速度。所提出的控制方法采用基于 MRAS 的无功功率技术来估计速度，提高了大范围驱动速度的系统稳定性。该系统采用单级光伏 (PV) 拓扑结构，开关逻辑通过空间矢量调制操作三相电压源逆变器获得，并以泵作为负载馈送 IMD，并在 MATLAB/Simulink 中设计和实现。所开发系统的适用性通过实验室实验得到验证。