KR890001252A - Impulse reflux inverter for uninterruptible power supplies - Google Patents

Impulse reflux inverter for uninterruptible power supplies Download PDF

Info

Publication number
KR890001252A
KR890001252A KR870005851A KR870005851A KR890001252A KR 890001252 A KR890001252 A KR 890001252A KR 870005851 A KR870005851 A KR 870005851A KR 870005851 A KR870005851 A KR 870005851A KR 890001252 A KR890001252 A KR 890001252A
Authority
KR
South Korea
Prior art keywords
reflux
inverter
impulse
energy
thyristors
Prior art date
Application number
KR870005851A
Other languages
Korean (ko)
Other versions
KR900005423B1 (en
Inventor
조규형
지경하
Original Assignee
김명덕
주식회사 엔.이.티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김명덕, 주식회사 엔.이.티 filed Critical 김명덕
Priority to KR1019870005851A priority Critical patent/KR900005423B1/en
Publication of KR890001252A publication Critical patent/KR890001252A/en
Application granted granted Critical
Publication of KR900005423B1 publication Critical patent/KR900005423B1/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output

Abstract

내용없음No content

Description

무정전 전원장치를 위한 임펄스 환류형 인버터Impulse reflux inverter for uninterruptible power supplies

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제7도는 본 발명의 기본 회로도7 is a basic circuit diagram of the present invention.

제9A, 9B도는 본 발명 제7도의 다섯가지 동작 모-드를 간략화하여 예시한 도면9A and 9B are simplified illustrations of the five operating modes of FIG. 7 of the present invention.

Claims (6)

임펄스 환류형 인버터를 구성함에 있어서, 변압기(T)의 중앙단자(C)에 직류전원(VS)이 연결되고, 변압기 양 단자(a,b)의 주스위칭 소자 즉 다이리스터(T1, T2)가 연결되며, 변압기 양단자(a,b)에 다이오드(D1, D2)가 직류전원(VS)의 부(-)단자에 연결되어 환류시 공진 전류가 흐르게 되고, 다이리스터(T3, T4)의 애노우드가 다이리스터(T1, T2)의 캐소우드에 각각 연결되고, 각 연결점 사이에 환류용 콘덴서(e)가 연결되어 환류시 에너지를 공급하게 되고, 다이리스터(T3, T4)의 캐소우드는 한점에 묶여 직렬 인덕터(L)의 한 단자에 연결되어 환류 동작시 환류용 콘덴서(C)와 공진 작용을 하게 되며, 이때 공진 전류가 증가하는 구간 동안 이 직렬 인덕터(L)은 에너지를 축적하게 되며, 축적된 에너지는 공진 전류가 감소하는 구간중에 직렬 인덕터(L)에는 역방향 전압이 나타나는데 그 전압의 크기가 점점 증가하여 인덕터의 1차 2차 권수비가 같은 조건하에서, 직류 전원전압(VS)와 같아질때부터 직렬 인덕터(L) 2차측을 통해 유기된 에너지가 다이오드(D5)를 통하여 직류전원(VS)로 회생함으로써 다이리스터가 환류시 변압기 1차측 권선이 단락되는 현상이 없고 안전한 스위칭 동작이 되는 것을 특징으로 하는 임펄스 환류형 인버터.In constructing an impulse reflux inverter, a DC power supply (V S ) is connected to the central terminal (C) of the transformer (T), and the juice switching elements of the transformer terminals (a, b), that is, the thyristors (T 1 , T). 2 ) is connected, and diodes D 1 and D 2 are connected to both terminals (a, b) of the transformer to the negative terminal of the DC power supply (V S ) so that a resonant current flows during reflux, and the thyristor ( T 3 , T 4 ) the anodes are connected to the cathodes of the die thistor (T 1 , T 2 ), respectively, the reflux condenser (e) is connected between each connection point to supply energy at reflux, the die thyristor The cathodes of (T 3 , T 4 ) are tied to one point and connected to one terminal of the series inductor (L) to resonate with the reflux capacitor (C) during the reflux operation, during which the resonance current increases. The series inductor L accumulates energy, and the accumulated energy is reversed in the series inductor L during the period in which the resonance current decreases. Voltage appears under the voltage condition in size gradually increases as the first secondary winding ratio of the inductor, a from equal to the direct current supply voltage (V S) eases over the secondary side series inductor (L) the organic energy diode (D 5 ) Impulse reflux inverter characterized in that the regeneration of the direct current power supply (V S ) by the thyristor does not short-circuit the primary winding of the transformer when refluxing, and a safe switching operation. 제1항에 있어서, 주스위칭 소자(T3, T4)는 다이리스터(T1, T2)보다 스위칭 속도가 약간 빠른 것이며, 다이오드(D1, D2, D5)도 역회복 시간이 빠른 소자이며, 직렬 인덕터(L)의 1차와 2차의 자기적 결합이 양호하게 구성되어 있는 것을 특징으로 하는 임펄스 환류형 인버터.The method of claim 1, wherein the juice switching elements (T 3 , T 4 ) is a slightly faster switching speed than the thyristors (T 1 , T 2 ), the diode (D 1 , D 2 , D 5 ) also has a reverse recovery time An impulse reflux inverter, characterized in that it is a fast element and has a good magnetic coupling between the primary and secondary of the series inductor (L). 제1항에 있어서, 인버터가 최초작동시에는 다이리스터(T1, T2, T3)를 동시에 도통시켜 환류동작을 위한 에너지를 환류용 콘덴서(C)에 충전이 되는데 이때 콘덴서에 직류 전원전압(VS)의 2배 크기의 전압잉유기되고, 이때 충전 전류가 감소하게 되어 다이리스터(T2)가 개방되며, 다음 구간에서 다이리스터(T3)를 환류시킬 목적으로 다이리스터(T4)를 잠깐 도통시키면, 환류용 콘덴서(C)에 충전되어 있던 에너지가 다이리스터(T4)를 통해 직렬 인덕터(L) 1차측을 통해 공진 현상이 일어나게 되며 이때 흐르는 공진 전류는다이오드(D1)를 통해 다이리스터(T1)로 흘러 공진 회로가 구성되는데 그 공진 전류의 4분의 1주기 동안에 직렬 인덕터(L)에 에너지가 축적되고 공진 전류의 4분의 2주기이후 직렬 인턱터(L)의 2차측을 통해 에너지가 회생되는 것을 특징으로 하는 임펄스 환류형 인버터.The method of claim 1, wherein when the inverter is initially operated, the thyristors T 1 , T 2 , and T 3 are simultaneously conducted to charge the reflux capacitor C with energy for the reflux operation, where the DC power supply voltage is applied to the capacitor. (V S) voltage and Ying organic magnitude of twice the, at this time is the charging current is reduced thyristors (T 2) that is opened and thyristors (T 4 for the purpose of refluxing the thyristor (T 3) at the next interval ) the moment when conductive, the energy that has been charged to the reflux condenser (C) for the thyristors (T 4), a resonance phenomenon via the primary side series inductor (L) is to occur through this time flowing through the resonant current is a diode (D 1) The resonant circuit flows through the thyristor T 1 , and energy is accumulated in the series inductor L during one quarter of the resonance current, and after two quarters of the resonance current, Energy is regenerated through the secondary side Impulse reflux inverter. 제3항에 있어서, 다이리스터(T3)의 환류 동작이 끝나고 환류용 콘덴서(C)에 역방향으로 전압이 유기되면서 충전 전류가 흐르게 되는데, 이때 흐르는 전류는 부하의 영향에 의해 거의 변화가 없게 되며, 충전 전류가 감소하게 되어 다이리스터(T2)가 개방되므로 이때에는 다이리스터(T1, T2, T3, T4)가 모두 개방되는 구간이 존재하여, 이 구간을 제어하면 인버터 출력 전압이 조정이용이하게 되는 것을 특징으로 하는 임펄스 환류형 인버터.According to claim 3 , the reflux operation of the die thruster (T 3 ) and the charging current flows while the voltage is induced in the reflux condenser (C) in the reverse direction, the current flowing there is almost no change under the influence of the load As the charge current decreases, the die Lister (T 2 ) is opened. At this time, there is a section in which all the Die Listers (T 1 , T 2 , T 3 , and T 4 ) are opened. Impulse reflux inverter characterized in that this adjustment is easy to use. 제4항에 있어서, 무정전 전원 장치용 인버터로서 기설 라-인과 교체시 별도의 전력 소자가 요구되지 않으며, 동기가 용이한 것을 특징으로 하는 임펄스 환류형 인버터.The impulse reflux inverter of claim 4, wherein a separate power device is not required when replacing the existing line-in as an inverter for an uninterruptible power supply, and is easy to synchronize. 제4항에 있어서, 다이리스터(T1, T2, T3, T4)가 모두 개방되는 구간을 제어함으로서, 인버터 출력 전압의 크기를 조정함과 동시에, 기본파 성분에 대한 고조파 성분의 크기를 적게 제어할 수 있어, 최종 출력단의 필터의 크기를 적게 할 수 있으며, 그러므로 필터에 의한 손실도 적게 할 수 있는 것을 특징으로 하는 임펄스 환류형 인버터.5. The method according to claim 4, wherein by controlling the section in which all the thyristors T 1 , T 2 , T 3 , and T 4 are opened, the magnitude of the harmonic components with respect to the fundamental wave components is adjusted while adjusting the magnitude of the inverter output voltage. The impulse reflux inverter of the present invention is characterized in that the number of filters can be reduced, the size of the filter of the final output stage can be reduced, and therefore, the loss caused by the filter can be reduced. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870005851A 1987-06-09 1987-06-09 Impulse communtatio inverter KR900005423B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870005851A KR900005423B1 (en) 1987-06-09 1987-06-09 Impulse communtatio inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870005851A KR900005423B1 (en) 1987-06-09 1987-06-09 Impulse communtatio inverter

Publications (2)

Publication Number Publication Date
KR890001252A true KR890001252A (en) 1989-03-20
KR900005423B1 KR900005423B1 (en) 1990-07-30

Family

ID=19262019

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870005851A KR900005423B1 (en) 1987-06-09 1987-06-09 Impulse communtatio inverter

Country Status (1)

Country Link
KR (1) KR900005423B1 (en)

Also Published As

Publication number Publication date
KR900005423B1 (en) 1990-07-30

Similar Documents

Publication Publication Date Title
US4333134A (en) Converters
US6285568B1 (en) Process for controlling a DC/DC converter with inductive storage and including an energetically neutral phase
CA1302494C (en) Active snubber structure and method for an electronic power inverter
US4445166A (en) High voltage converter
US4679133A (en) System for alleviating harmonic distortion
KR890001252A (en) Impulse reflux inverter for uninterruptible power supplies
CN100384071C (en) Input stage circuit of three-level DC converter
JPS5641769A (en) One transistor type converter
US3389322A (en) Direct current chopper circuit
DE2816361A1 (en) METHOD FOR OPERATING A POWER CAPACITOR FOR BLIND CURRENT COMPENSATION
RU2109394C1 (en) Quasi-resonance constant voltage converter with switching- over under zero voltage
RU2107983C1 (en) Quasiresonant dc voltage changer incorporating zero-voltage change-over provision
SU1742969A1 (en) Autonomous resonant inverter
SU1594664A1 (en) D.c. to d.c. voltage converter
SU1083310A1 (en) D.c.voltage-to-d.c.voltage converter
SU1552319A1 (en) Self-excited series inverter
JP3680563B2 (en) Half-bridge converter backup circuit
SU1042142A2 (en) Controlled direct current voltage converter with high-voltage output
SU702474A1 (en) Controlled artificially switched rectifier
SU1171921A1 (en) Stabilized power source
SU1032568A1 (en) Self-excited inverter
SU972639A2 (en) Resonance series-parallel inverter
SU1515287A1 (en) Single-ended d.c. voltage converter
SU1473038A1 (en) Single-clock dc converter
RU1775815C (en) Single-ended dc voltage converter

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19940729

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee