Capacitor dynamic voltage-sharing control method of modular multi-level matrix converter

Capacitor dynamic voltage-sharing control method of modular multi-level matrix converter

The invention discloses a capacitance dynamic voltage-sharing control method for a modular multilevel matrix converter, and the method comprises the following steps: 1), obtaining a modulation ratio offset value dMxyn (x belongs to {u, v, w}, y belongs to {a, b, c}) of PWM modulation; 2) obtaining a...

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Hauptverfasser: YIN CONGQI, ZHANG HE, HU YAHAN, YAN SHUHAO, LI XUAN, MA CHUNZHE, MENG YONGQING, YUAN BIN, GAO ZIJIAN
Format: Patent
Sprache:chi ; eng
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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
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creator YIN CONGQI
ZHANG HE
HU YAHAN
YAN SHUHAO
LI XUAN
MA CHUNZHE
MENG YONGQING
YUAN BIN
GAO ZIJIAN
description The invention discloses a capacitance dynamic voltage-sharing control method for a modular multilevel matrix converter, and the method comprises the following steps: 1), obtaining a modulation ratio offset value dMxyn (x belongs to {u, v, w}, y belongs to {a, b, c}) of PWM modulation; 2) obtaining a modulation ratio offset final value dMxy (x belongs to {u, v, w}, y belongs to {a, b, c}) of PWM modulation between the sub-converters; and 3) obtaining a modulation wave signal and a triangular carrier signal of the modular multi-level matrix converter, obtaining a final modulation wave signal according to the modulation wave signal, dMxyn (x belongs to {u, v, w}, y belongs to {a, b, c}) and dMxy (x belongs to {u, v, w} and y belongs to {a, b, c}), subtracting the final modulation wave signal from the triangular carrier signal, obtaining a PWM signal of an actual switch of each full-bridge module in a bridge arm according to the subtracting result, and outputting the PWM signal. According to the PWM signal of the
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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
title Capacitor dynamic voltage-sharing control method of modular multi-level matrix converter
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