A control system includes a boost-buck converter, a control apparatus and a voltage sensor. The boost-buck converter is provided between a battery and a motor-generator. The control apparatus controls the boost-buck converter. The voltage sensor outputs a sensor output value of a system voltage supplied to the motor. The control apparatus calculates a current stagnation continuation period based on the sensor output value of the voltage sensor and corrects a duty ratio of the boost-buck converter in accordance with a calculation value of the continuation period. The continuation period includes a predetermined time point, at which current stagnation is assumed to be generated. The current stagnation indicates that at least a reactor current stagnates. In the continuation period, a system voltage-related voltage continues to have a voltage difference of the same polarity side relative to a reference voltage.
Boost-buck converter control system
2016-12-20
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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