Riding the reflected wave-IGBT drive technology demands new motor and cable considerations

Active motor terminal overvoltage mitigation method for parallel voltage source inverters

“…The inductors for high currents, even in the case of a low inductance, are very large and bulky. Moreover, for phase currents of hundreds of amperes, parallel motor cables have to be installed even in the traditional topology [21]. Therefore it is safe to say that by using the method, the installation costs are reduced by the price of the inductors.…”

“…G M depends on the motor power -from low-power motors (less than 10 kW) G M ≃ 0.95 to higher power motors (in the order of hundreds of kW) G M ≃ 0.6 [21]. The voltage pulse will reflect from the motor and travel back to the inverter.…”

“…The simulation model consisted of ideal transmission lines Z c ¼ 100 V to model the motor cables, and the impedance of the load was Z m ¼ 1500 V [21]. The length of the cables was 20 m and t d ¼ 0.133 ms.…”

A new mathematical tool to investigate the influence of cable characteristics and IGBT fast switching on voltage transients and differential mode currents for PWM drives

“…(15) may be expanded in Taylor series to draw Eqs. (16) and (17), respectively. One can then compute Eq.…”

Contribuição das configurações de sistemas de acionamento e de seus componentes naturais no controle de interferências eletromagnéticas.

“…Finlayson (1998) Alguns outros autores, como Skibinski (1996), Jouanne; Enjeti e Gray (1996), Saunders et al (1996) e Skibinski et al (1998), propuseram um filtro passivo a ser instalado juntamente ao motor, funcionando como impedância de terminação, para adequar a impedância do motor à do cabo, minimizando a reflexão de onda. No entanto esta solução já não é mais usual.…”