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This paper presents a robust control strategy for a Permanent Magnet Synchronous Machine (PMSM) based on passivity theory. Pre‐control terms ensure robustness to variation of parameters. The nominal electrical and mechanical dynamics are treated separately and a cascade structure is obtained. A comparative analysis is done in Matlab‐Simulink with a Simple Adaptive Control (SAC) strategy in terms of...
This paper presents a voltage control strategy for a DC load powered by a three phase inverter connected to a Permanent Magnet Synchronous Generator (PMSG). The DC load consists of a DC capacitor in parallel with the inverter and the unknown current load. The control strategy is designed based on Simple Adaptive Control (SAC) technique. The structure is a cascade controller designed in rotor reference...
This paper presents an on-line method for determining the hottest spot temperature of the copper windings of a Permanent Magnet Synchronous Machine (PMSM). The purpose is to protect the Electrical Machine (EM) from high temperatures which reduces the lifetime of the machine and can eventually lead to insulation faults of the motor. The method relies on experimental data acquired from a network of...
Efficient utilization of the power supply in Electrical Drive Systems (EDS) is a subject of interest and vast research. Nonetheless, the design of EDS aims to be robust to rough operating conditions and provide high performance. The Externally Excited Synchronous Machine (EESM) has become a cheaper alternative solution over the permanent magnet synchronous machine especially in Hybrid and Electric...
This paper proposes a control strategy for a high power Externally Excited Synchronous Machine (EESM) based on Simple Adaptive Control technique. A cascade control scheme is designed in the rotor reference frame. In the current control loop a SAC approach is described, while for the speed control loop a robust controller is proposed. The rotor and stator reference currents are determined based on...
This paper proposes a robust Passivity Based Control (PBC) strategy for an Externally Excited Synchronous Machine (EESM) used in high power applications. The mathematical model of the EESM is obtained in Euler-Lagrange (EL) formalism which is the basis for the PBC control design. Variations of parameters are modelled as external perturbations and are compensated by pre-control actions determined by...
This paper presents a passivity based torque control structure for a high power Permanent Magnet Synchronous Motor (PMSM) used in Electric Vehicles (EV). A comparative study is done with a parallel PI algorithm in terms of response time, settling time, stationary error and required input electrical energy to reach the desired operating point. Moreover, parameters variations are simulated in order...
This paper proposes an estimation approach based on Kalman filtering for determining the temperature of the stator windings of a Permanent Magnet Synchronous Motor (PMSM). Two schemes based on the Extended Kalman Filter (EKF) and the Unscented Kalman Filter (UKF) are investigated. The estimation is performed in a closed loop currents control scheme for a surface mounted PMSM. The temperature behavior...
Permanent magnet synchronous motors (PMSM) are widely used in electric vehicle application due to their high power density, high efficiency and very good performance at low speeds. Safety concerns in automotive industry require monitoring of the system to ensure a correct and safe operation of the electric vehicle. This paper presents three software methods for estimating the winding electrical resistance...
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