This paper describes a new 600V trench-gate field stop IGBT (FS-IGBT) with an advanced micro p-base (micro-P) structure in order to realize low on-state voltage drop and low Miller capacitance for the next generation 600V intelligent power module (IPM). The extra margin of the safe operating area (SOA) can be reduced by using improved over-current protection function in the IPMs, and collector-emitter saturation voltage is reduced more by the optimization of the SOA. The new 600V IGBT improved trade-off relationship between on-state voltage drop and turn-off power dissipation. The device also realizes low turn-on power dissipation without increasing radiation noise. As a result, total power dissipation of the new IGBT can be reduced by 14.2% compared to that of the conventional IGBT.
This paper presents a large capacity inverter for power system apparatus that can simultaneously fulfil the tasks of: inverter loss reduction, harmonic reduction, and system disturbance control. The inverter consists of a hybrid inverter of a GTO inverter and an IGBT inverter. This paper presents the main circuit configuration of this hybrid inverter and outlines the inverter control system. For the purpose of confirming the capabilities of this inverter to solve the second and third tasks, the authors performed computer simulation of hybrid inverter applied to fuel cell power generation using EMTDC (Electromagnetic Transient Simulation Program). Harmonic characteristics in steady state and transient characteristics of system voltage dip are analyzed. The results reveal that the inverter system has capabilities to reduce harmonics and to control system disturbances. The inverter system can contribute to the wider use for power system apparatus.
'/%3e%3c/defs%3e%3cpath fill='%23012169' d='M0 0h10080v5040H0z'/%3e%3cpath stroke='%23fff' stroke-width='.6' d='m0 0 6 3m0-3L0 3' clip-path='url(%23b)' transform='scale(840)'/%3e%3cpath stroke='%23e4002b' stroke-width='.4' d='m0 0 6 3m0-3L0 3' clip-path='url(%23c)' transform='scale(840)'/%3e%3cpath stroke='%23fff' stroke-width='840' d='M2520 0v2520M0 1260h5040'/%3e%3cpath stroke='%23e4002b' stroke-width='504' d='M2520 0v2520M0 1260h5040'/%3e%3cg fill='%23fff'%3e%3cuse xlink:href='%23d' x='2520' y='3780'/%3e%3cuse xlink:href='%23a' x='7560' y='4200'/%3e%3cuse xlink:href='%23a' x='6300' y='2205'/%3e%3cuse xlink:href='%23a' x='7560' y='840'/%3e%3cuse xlink:href='%23a' x='8680' y='1869'/%3e%3cuse xlink:href='%23e' x='8064' y='2730'/%3e%3c/g%3e%3c/svg%3e)