Title :
Parallel processing inverter system
Author :
Kawabata, Takao ; Sashida, Nobuo ; Yamamoto, Yushin ; Ogasawara, Kouji ; Yamasaki, Yuko
Author_Institution :
Mitsubishi Electr. Corp., Kobe, Japan
fDate :
7/1/1991 12:00:00 AM
Abstract :
A novel method of instantaneous voltage and power balance control of a parallel processing inverter system is proposed. It consists of a high-speed switching PWM (pulsewidth modulated) inverter with an instantaneous current minor loop controller, a voltage major loop controller, and a power balance controller. This system realizes the following functions with only one inverter: constant AC output voltage control with reactive power control, active filtering to absorb load current harmonics, DC voltage and current control as AC-to-DC converter, and uninterruptible power supply (UPS) for stand-alone operation. This system covers a wide application range, including UPS systems, new energy systems, and active filters with voltage control functions
Keywords :
active filters; electric current control; invertors; power control; pulse width modulation; reactive power; switching; voltage control; AC-to-DC converter; PWM inverter; active filtering; active filters; constant AC output voltage control; high-speed switching; instantaneous current minor loop controller; parallel processing inverter system; power balance control; reactive power control; stand-alone operation; uninterruptible power supply; voltage control; voltage major loop controller; Active filters; Control systems; Parallel processing; Power filters; Power harmonic filters; Pulse inverters; Pulse width modulation inverters; Reactive power control; Uninterruptible power systems; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
