Study On Control Of A 12/10 Switched Reluctance Motor Applied In ISAD System For Vehicle

Switched Reluctance Motor (SRM) is a novel drive machine developed since 1970s, with the inherent characteristics of simple and rugged construction, good start performance, low-cost, fault tolerant and four-quadrant operation capability,. Integrated Starter Alternator Damper (ISAD) is a system within Hybrid Electrical Vehicle (HEV), combining the starter, alternator, and Damper. The application of SRM in ISAD is prospective for well performances of the whole HEV, lower oil consumption and emission.Focused on a 12/10 SRM applied in ISAD for HEV, the control scheme of SRM is studied. Considering the mathematical model of SRM, the characteristics of SRM in the motor and generator operation are analyzed . According to the performance requirement of ISAD, control strategies of SRM in starter, booster and Alternator modes are presented respectively. Then the SRM-based ISAD experimental platform is established, the control software is also designed. The designed system recognizes running mode with the current and voltage feedback, and then adjusts control parameters accordingly. When in starter mode, it starts with load to idle speed. When in boost mode, it boosts the engine with efficiency and torque optimum. When in alternator mode, it charges battery with current-constant mode or voltage-constant mode. The experimental results illuminates the performances of the designed ISAD system based on SRM and justify the presented control strategy.