Non-electrolytic-capacitor high-power-factor correction device and method

• Main Authors: CHEN WEI, XU YINGNIAN, LIU FURONG, LIANG BIAO, XIAO CHENGYUAN, WANG HAORAN, ZHU GUORONG
• Format: Patent
• Language: Chinese; English
• Published: 25.12.2013
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention discloses a non-electrolytic-capacitor high-power-factor correction method. The non-electrolytic-capacitor high-power-factor correction method comprises the following steps that the voltage, the current, the capacitance value of the first difference capacitance and the capacitance value of the second difference capacitance are input through a differential input rectification system, so that the capacitor voltage set values of the first difference capacitance and the second difference capacitance are obtained, and the value of amplitude and the phase of the secondary ripple voltage are determined; the set value of the first inductive current and the set value of the second inductive current are obtained through calculation of the capacitor voltage of the first difference capacitance and the capacitor voltage of the second difference capacitance, deviation calculation is correspondingly conducted on the set value of the first inductive current and the value of the inductive current, actually detec