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1. WO2022000827 - METHOD FOR IMPLEMENTING PFC USING ONLY PRIMARY PHASE SHIFT CONTROL

Publication Number WO/2022/000827
Publication Date 06.01.2022
International Application No. PCT/CN2020/117444
International Filing Date 24.09.2020
IPC
H02J 50/10 2016.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
H02M 1/42 2007.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
B60L 53/12 2019.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
10characterised by the energy transfer between the charging station and the vehicle
12Inductive energy transfer
Applicants
  • 浙江大学 ZHEJIANG UNIVERSITY [CN]/[CN]
Inventors
  • 钟文兴 ZHONG, Wenxing
  • 李豪 LI, Hao
  • 徐德鸿 XU, Dehong
Agents
  • 杭州求是专利事务所有限公司 HANGZHOU QIUSHI PATENT OFFICE CO., LTD.
Priority Data
202010636478.903.07.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR IMPLEMENTING PFC USING ONLY PRIMARY PHASE SHIFT CONTROL
(FR) PROCÉDÉ DE MISE EN OEUVRE DE CONVERSION DU FACTEUR DE PUISSANCE AU MOYEN D'UNE COMMANDE DE DÉCALAGE DE PHASE PRIMAIRE SEULEMENT
(ZH) 一种仅通过原边移相控制实现PFC的方法
Abstract
(EN) A method for implementing PFC using only primary phase shift control. With the present method, a conventional PFC circuit is not needed in a conventional wireless charging system topology, such that a power grid voltage is converted into a power frequency voltage to directly power a primary inverter of a wireless charging system after undergoing non-controlled rectification, thereby implementing a PFC function using only primary phase shift control. Compared with a conventional topology, the present method does not require a PFC circuit, and can implement PFC by using only primary modulation, thereby providing a simple structure, achieving high efficiency, and reducing costs.
(FR) L'invention concerne un procédé de mise en oeuvre de conversion du facteur de puissance (PFC) au moyen d'une commande de décalage de phase primaire seulement. Dans le procédé selon l'invention, un circuit PFC classique n'est pas nécessaire dans une topologie de système de charge sans fil classique, de sorte qu'une tension de réseau électrique soit convertie en une tension de fréquence de puissance pour alimenter directement un onduleur primaire d'un système de charge sans fil après l'avoir soumis à un redressement non commandé, ce qui met en oeuvre une fonction PFC au moyen d'une commande de décalage de phase primaire seulement. Par rapport à une topologie classique, le procédé selon l'invention ne nécessite pas de circuit PFC et peut mettre en oeuvre la PFC au moyen d'une modulation primaire uniquement, ce qui permet d'obtenir une structure simple et un haut rendement, et de réduire les coûts.
(ZH) 一种仅通过原边移相控制实现PFC的方法,该方法是在传统无线充电系统拓扑的基础上,去除传统PFC电路,使电网电压经过不控整流成工频电压直接给无线充电系统的原边逆变器供电,仅通过原边移相控制实现PFC功能,该方法相比于传统拓扑,省去了额外的PFC电路,仅通过原边调制即可实现PFC,结构简单、效率高、成本低。
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