电机与拖动(英文版).pdf

1358 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 29, NO. 3, MARCH 2014 Integrated Inverter/Converter Circuit and Control Technique of Motor Drives With Dual-Mode Control for EV/HEV Applications Yen-Shin Lai, Senior Member, IEEE, Wei-Ting Lee, Yong-Kai Lin, Member, IEEE, and Jian-Feng Tsai Abstract—A new integrated circuit for motor drives with dual- mode control for EV/HEV applications is proposed. The proposed integrated circuit allows the permanent magnet synchronous mo- tor to operate in motor mode or acts as boost inductors of the boost converter, and thereby boosting the output torque coupled to the same transmission system or dc-link voltage of the inverter con- nected to the output of the integrated circuit. In motor mode, the proposed integrated circuit acts as an inverter and it becomes a boost-type boost converter, while using the motor windings as the boost inductors to boost the converter output voltage. Moreover, a new control technique for the proposed integrated circuit under boost converter mode is proposed to increase the efficiency. The proposed control technique is to use interleaved control to signif- icantly reduce the current ripple and thereby reducing the losses and thermal stress under heavy-load condition. In contrast, single- phase control is used for not invoking additional switching and conduction losses under light-load condition. Experimental results derived from digital-controlled 3-kW inverter/converter using dig- ital signal processing show the voltage boost ratio can go up to 600 W to 3 kW. And the efficiency is 93.83% under full-load condi- tion while keeping the motor temperature at the atmosphere level. These results fully confirm the claimed merits for the proposed integrated circuit. Index Terms—Boost converter, inverter, motor drives