Zvzcs Pwm Dc-dc Converter with Controlled Output Rectifier
نویسندگان
چکیده
A new zero-voltage zero-current switching (ZVZCS) full-bridge phase-shifted PWM converter with controlled output rectifier is presented in this paper. Zero-voltage turn-on and zero-current turn-off for all power switches of the inverter is achieved for full load range from no-load to short circuit by using new secondary energy recovery clamp and modified PWM control strategy. Moreover by adding secondary energy recovery clamp the zero-current turn-on and zero-voltage turn-off for rectifier switch is ensured. The principle of operation is explained and analysed and simulation results are presented.
منابع مشابه
Zvzcs Pwm Dc-dc Converter with Controlled Secondary Rectifier for Arc Welding
A zero-voltage, zero-current switching (ZVZCS) PWM DC-DC power converter with secondary active rectifier tested as a dc current source for arc welding is described in this paper. The soft switching DC-DC converter consists of high frequency inverter, high frequency power transformer and controlled output rectifier with new secondary energy recovery turn-off snubber. Circulating current in the c...
متن کاملPower Quality Control and Design of Power Converter for Variable-Speed Wind Energy Conversion System with Permanent-Magnet Synchronous Generator
The control strategy and design of an AC/DC/AC IGBT-PMW power converter for PMSG-based variable-speed wind energy conversion systems (VSWECS) operation in grid/load-connected mode are presented. VSWECS consists of a PMSG connected to a AC-DC IGBT-based PWM rectifier and a DC/AC IGBT-based PWM inverter with LCL filter. In VSWECS, AC/DC/AC power converter is employed to convert the variable frequ...
متن کاملAnalysis of Hysteresis Current Controlled Three Phase PWM Rectifier with Reduced Switching Loss
Pulse Width Modulated (PWM) Rectifiers offer a promising and high end performance for the ac to dc conversion needs of the industry, customer and power grid sectors. This paper presents a reduced switching loss algorithm applied to a hysteresis current controlled PWM rectifier. This acts as an ac to dc boost converter with near unity power factor at the grid side along with regulated and ripple...
متن کاملSoft-switching Ps-pwm Dc-dc Converter for Arc Welding
Soft-switching DC-DC converter using Phase-Shifted Pulse Width Modulation (PS-PWM) on secondary side of highfrequency transformer is described in the paper. The converter consists of a full-bridge inverter fitted with fast IGBT transistors. The output power of the converter is controlled by rectifier made up of two snap-off diodes in series with MOSFET transistors which is connected on secondar...
متن کاملA New ZVZCS Isolated Dual Series Resonant DC-DC Converter with EMC Considerations
A novel ZVZCS isolated dual series-resonant active-clamp dc–dc converter is proposed to obtain high efficiency. The proposed converter employs an active-clamp technique, while a series-resonant scheme controls the output voltage with the complementary pulse width modulation controller. The active-clamp circuit serves to recycle the energy stored in the leakage inductance or the magnetizing ...
متن کامل