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1. WO2020116817 - POWER CONVERSION METHOD

Publication Number WO/2020/116817
Publication Date 11.06.2020
International Application No. PCT/KR2019/015757
International Filing Date 18.11.2019
IPC
H02M 3/335 2006.01
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
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
H02M 1/00 2007.01
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
Applicants
  • 효성중공업 주식회사 HYOSUNG HEAVY INDUSTRIES CORPORATION [KR]/[KR]
Inventors
  • 정병환 JEONG, Byung Hwan
  • 서해원 SEO, Hae Won
  • 변병주 BYEN, Byeng Joo
  • 김현준 KIM, Hyun Jun
Agents
  • 특허법인 수 SU INTELLECTUAL PROPERTY
Priority Data
10-2018-015677107.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) POWER CONVERSION METHOD
(FR) PROCÉDÉ DE CONVERSION DE PUISSANCE
(KO) 전력 변환 방법
Abstract
(EN)
A method for determining a scheme for converting power in every power conversion control period and converting power according to the determined scheme may comprise the steps of: calculating average power in a transformer inductor at the time of power conversion according to an SPWM scheme in a control period; calculating average power in the transformer inductor at the time of power conversion according to a DPWM scheme in a control period; and converting power according to a scheme by means of which the calculated average power of the transformer inductor is greater. Here, in the step of calculating the average power in the transformer inductor at the time of power conversion according to the DPWM scheme, it is possible to select a DPWM scheme with the maximum duty in a step-up or step-down condition given in the control period.
(FR)
Un procédé destiné à déterminer un schéma pour convertir la puissance dans chaque période de commande de conversion de puissance et convertir la puissance selon le schéma déterminé peut comprendre les étapes consistant à : calculer une puissance moyenne dans une bobine d'induction de transformateur au moment de la conversion de puissance selon un schéma SPWM dans une période de commande ; calculer une puissance moyenne dans la bobine d'induction de transformateur au moment de la conversion de puissance selon un schéma DPWM dans une période de commande ; et convertir la puissance selon un schéma au moyen duquel la puissance moyenne calculée de la bobine d'induction de transformateur est plus élevée. Ici, à l'étape de calcul de la puissance moyenne dans la bobine d'induction de transformateur au moment de la conversion de puissance selon le schéma DPWM, il est possible de sélectionner un schéma DPWM avec le cycle de service maximal dans un état d'élévation ou d'abaissement donnée dans la période de commande.
(KO)
본 발명의 전력 변환 제어 주기 마다, 전력을 변환하는 방식을 결정하고, 결정된 방식으로 전력을 변환하는 방법은, 제어 주기에서 SPWM 방식의 전력 변환시 변압기 인덕터에서의 평균 전력을 산정하는 단계; 제어 주기에서 DPWM 방식의 전력 변환시 변압기 인덕터에서의 평균 전력을 산정하는 단계; 및 산정된 변압기 인덕터 평균 전력이 큰 방식으로 전력을 변환하는 단계를 포함할 수 있다. 여기서, 상기 DPWM 방식의 전력 변환시 인덕터에서의 평균 전력을 산정하는 단계에서는, 제어 주기에 주어진 승압 또는 강압 조건에서 최대 듀티를 가지는 DPWM 방식을 선택할 수 있다.
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