High Efficient Drive Technologies for Advanced Air-Conditioner Inverter System
In Japan, the energy-saving index of air conditioners changed from the coefficient of performance at the rated operation and to the annual performance factor, which is closer to the condition of actual use in Japan. Under this circumstance, efficiency improvement at low load operation is required for the inverter system. In response to this requirement, we have applied a MOSFET with a super junction structure (SJ-MOSFET) as a switching device for the compressor motor, and developed a new driving method named Smart PRE Switching. By this technology, we can overcome the disadvantage of MOSFET characteristic of a super junction structure and obtained high operating efficiency by 2-4％ at low load operation mode, compared to the conventional IGBT inverter system.
Takahisa Endo Hiroshi Mochikawa
Toshiba Carrier Corporation, Japan Toshiba Corporation, Japan
国际会议
The Eighth International PCIM China(第八届电子功率器件、智能传送、电源质量国际研讨会)
上海
英文
209-214
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）