48V起动发电机的能量平衡

本例展示了在简化48V汽车系统中作为启动器/发电机的内部永磁同步电机(IPMSM)。系统包含48V电网和12V电网。内燃机(ICE)由基本机械块表示。IPMSM作为电机工作，直到ICE达到怠速，然后它作为发电机工作。IPMSM为48V网络供电，48V网络中包含R3电源用户。48V网络向12V网络供电，12V网络有R1和R2两个消费者。总模拟时间(t)为0.5秒。当t = 0.05秒时，ICE启动。当t = 0.1秒时，R3打开。当t = 0.3秒时，R2接通电源，增加12V电网的负载。 The EM Controller subsystem includes a multi-rate PI-based cascade control structure which has an outer voltage-control loop and two inner current-control loops. The task scheduling in the Control subsystem is implemented as a Stateflow® state machine. The DCDC Controller subsystem implements a simple PI controller for the DC-DC Buck converter, which feeds the 12V network. The Scopes subsystem contains scopes that allow you to see the simulation results.