Abstract
Electric vehicle Integrated On-board Charger (IOBC) can make use of electric vehicle motor driver and motor inductance to constitute a battery charger. However, the traditional IOBC simulation method uses finite element model and the control circuit, resulting in very slow simulation speed, while the control and charging system verification does not need such a complex model. This paper presents a motor model system simulation method for electric vehicle IOBC based on motor finite element model calculation data. The proposed method can be used to simulate motor inductance parameters. Output flux and torque of the simplified model of the motor can be obtained according to the input current and rotor angle when motor rotates. This method can avoid the problem that the simulation speed is too slow when the finite element model of motor is integrated into the simulation system. This method is used to improve the simulation accuracy and speed of the motor inductance and is used for its initial simulation verification design. To prove the feasibility of the theory, based on the simplified model of a three-phase permanent magnet synchronous motor and three-phase full-bridge converter, the classical V2G converter control method is used to verify the feasibility of the simulation method.
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