An adjustable pump speed drive is commonly employed to control the speed of the pump motor, achieve the appropriate flow rate, and maintain the fluid level. The electrical motor, power electronics converter, and control are the main elements of the pump motor drive (PMD). In terms of energy efficiency and reliability, pump drives with permanent magnet synchronous motors (PMSMs) and sensorless control have more alluring qualities. To increase the efficiency of PMSM-PMD, the optimum controls including loss minimization and modified grey wolf optimizer (mGWO) are employed. The model reference adaptive system (MRAS) control is often employed for sensorless PMSM-PMD owing to its simplicity, reliability, and good response. The PMSM core loss equivalent parameters are precisely analyzed in this article. Also, the loss model that considers core loss is used to calculate the link between power loss and reference d-axis stator current (I_ds). Further, for enhancing the efficiency, an optimal I_ds^* value is injected in field orientation control (FOC). This proposed scheme increases the efficiency of the PMSM pump drive by up to 1.5 percent as compared to the conventional FOC strategy. A 2.2-kW PMSM drive is tested with the proposed control strategy using real-time interfacing controller dSPACE 1202 MicroLabBox. Also, the obtained results are validated in Matlab/Simulink environment.

通常采用可调泵速驱动器来控制泵电机的速度，实现适当的流量并保持液位。电机、电力电子转换器和控制是泵电机驱动器 (PMD) 的主要元件。在能源效率和可靠性方面，采用永磁同步电机（PMSM）和无传感器控制的泵驱动具有更诱人的品质。为了提高 PMSM-PMD 的效率，采用了包括损耗最小化和改进的灰狼优化器（m GWO）在内的最佳控制。模型参考自适应系统（MRAS）控制因其简单、可靠和良好的响应而常用于无传感器 PMSM-PMD。本文对PMSM磁芯损耗等效参数进行了精确分析。此外，考虑铁芯损耗的损耗模型用于计算功率损耗和参考 d 轴定子电流 ( I _ds ) 之间的联系。此外，为了提高效率，在场定向控制（FOC）中注入了最佳I _ds ^*值。与传统的 FOC 策略相比，该方案将 PMSM 泵驱动器的效率提高了 1.5%。使用实时接口控制器 dSPACE 1202 MicroLabBox 通过所提出的控制策略对 2.2 kW PMSM 驱动器进行测试。此外，所获得的结果在Matlab/Simulink环境中得到验证。