Hybrid vehicles (HV) have originally been equipped with a high-capacity motor and inverter for driving. However, there is a great need for emergency power sources in the event of an earthquake or the like.This paper proposes a system that uses an HV drive motor and inverter to achieve high-capacity power generation from motor neutral points, and reports test results using a Toyota Prius.
The resonant DC link invertors have been developed these years for avoiding the switching loss of the conventional multi-pulse PWM invertors. This paper proposes a three phase VVVF power invertor using resonant pulse density modulation for induction motor speed-control. The invertor is composed of a cascade connection of a resonant DC-DC convertor and a multi-pulse PWM invertor. The output waveform depends on the gate pulse patterns of the invertor valves. This paper proposes three kinds of pulse patterns for obtaining the outputs of trapezoidal waveform and of sinusoidal waveform, and describes also the experimental results.The V/f characteristics for induction motor speed-control and the regenerative braking operation will be examined and the circuit behaviors will be discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.