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In this paper a new control algorithm to remove parallel resonance in the power factor correction capacitor banks is presented. The proposed system is based on series inverter with capacitor banks in each phase. The main advantage of this method is fast response to eliminate resonance. Another advantage is the use of a low gain proportional controller, rather than a PI controller, to control the dc...
Combination of a large amount of harmonic currents produced by nonlinear/power electronic loads and capacitance in the network usually results in harmonic resonance which is detrimental to the performance of the distribution systems. Over the last few years, there has been a very significant increased in the usage of power electronic loads such as the inverter air-conditioners, inverters refrigerators,...
This paper presents single stage series load resonant ZVS-PWM high frequency inverter which operates one diode conduction mode and critical ZCS PFC rectifier for induction heating (IH) applications. This single stage inverter is composed of a single phase PFC rectifier operating at one diode conduction mode and asymmetrical ZVS-PWM high frequency resonant inverter without the interlink bulky electrolytic...
A single-stage electronic ballast topology with the properties of high efficiency and low stress is proposed in this paper. The ballast consists of a voltage fed half-bridge series-resonant series-parallel-load (SRSPL) inverter, playing the role of lamp driver, and a voltage boost converter, which shares low side switch device with half-bridge inverter and acts as power-factor-correction (PFC). The...
This paper presents a high-efficiency-high power density one stage ZVS-PWM single-ended push-pull (SEPP) high frequency inverter with new PFC functional scheme. This high-frequency resonant series load resonant inverter with lossless snubbing capacitors is composed of a passive PFC converter operating at one diode conducting bridge circuit and asymmetrical ZVS-PWM high frequency resonant direct inverter...
This paper proposes a novel single-stage high-power-factor electronic ballast with symmetrical half-bridge topology for fluorescent lamps. The proposed electronic ballast only uses a symmetrical half-bridge topology to procure the functions of a boost power-factor-correction converter and a half-bridge series parallel-loaded inverter. In spite of its simplicity, an excellent performance concerning...
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