KR102087573B1 - 인버터용 작동 상태 회로, 및 인버터의 작동 상태 설정 방법 - Google Patents
인버터용 작동 상태 회로, 및 인버터의 작동 상태 설정 방법 Download PDFInfo
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- H—ELECTRICITY
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- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
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- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
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- H02H7/1252—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers responsive to overvoltage in input or output, e.g. by load dump
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- H02M—APPARATUS 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
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- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
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- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
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- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53875—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
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Abstract
Description
도 2는 본 발명의 추가 실시예에 따른 전기 구동 시스템의 인버터의 제어를 위한 작동 상태 그래프를 나타낸 개략도이다.
도 3은 본 발명의 추가 실시예에 따른 인버터의 작동 상태들을 변경할 때 인버터의 상 전류들에 대한 전류-시간 그래프를 나타낸 개략도이다.
도 4는 본 발명의 추가 실시예에 따른 인버터의 작동 상태들을 설정하기 위한 방법을 나타낸 개략도이다.
2 직류 전압 중간 회로
2a 중간 회로 커패시터
2c, 2d 인버터의 입력 단자
3 인버터
3a ~ 3f 스위칭 장치
4a, 4b, 4c 하프 브리지
5 n상 전기 기기
5a, 5b, 5c 상 단자
6 작동 상태 회로
7 제어 장치
7b 하드웨어 회로
8 평가 장치
10 전기 구동 시스템
20 작동 상태 그래프
22, 23, 24 작동 범위
31, 32, 33 상 전류 곡선
40 인버터 작동 방법
41, 42, 43, 44 단계
IM 상 전류값
IP 상 전류
IZ 상 전류값
n 전기 기기(5)의 회전수
nM 회전수 임계값
t1, t2, t3 시점
UE 입력 전압
UM, UF 프리휠링 임계값
Claims (10)
- 각각의 스위칭 장치들(3a; ...;3f)을 구비한 하프 브리지들(4a, 4b, 4c)을 포함하여 n ≥ 1인 조건에서 각각의 하프 브리지들(4a, 4b, 4c)에 할당된 상 단자들(5a, 5b, 5c)을 통해 n상 전기 기기(5)에 n상 공급 전압을 공급하는 인버터(3)를 제어하기 위한 작동 상태 회로(6)로서,
한편으로 상기 인버터(3)의 상 단자들(5a, 5b, 5c)과, 그리고 다른 한편으로는 상기 인버터(3)의 입력 단자들(2c, 2d)과 연결되어 상기 인버터(3)의 입력 전압(UE)뿐만 아니라 상기 인버터(3)의 상 단자들(5a, 5b, 5c)에서의 상 전류들을 검출하도록 구성되는 평가 장치(8); 및
상기 평가 장치(8)와 연결되어 검출된 입력 전압(UE)에 따라서 단락 상태로부터 프리휠링 모드로 상기 인버터(3)를 스위칭하도록 구성되는 제어 장치(7);를 포함하고,
상기 평가 장치(8)는, 상기 검출된 입력 전압(UE)이 설정가능한 프리휠링 임계값(UM; UF)보다 더 낮으면, 프리휠링 트리거 신호를 생성하여 상기 제어 장치(7)로 출력하도록 구성되며, 그리고
상기 제어 장치(7)는, 상기 프리휠링 트리거 신호의 수신 후에, 상기 할당된 상 단자(5a, 5b, 5c)에서 각각의 검출되는 상 전류가 제로 크로싱, 또는 상기 인버터(3)에서 개시되는 전류 방향을 나타낼 때 비로소 개방 상태로 상기 하프 브리지들(4a, 4b, 4c)의 각각의 스위칭 장치들(3a; ...; 3f)을 전환하도록 구성되고,
상기 평가 장치(8)는, 상기 상 단자들(5a, 5b, 5c)에서 상기 인버터(3)의 출력 전압들을 검출하고, 검출된 출력 전압들을 기초로 상기 전기 기기(5)의 회전수(n)를 산출하도록 구성되며, 그리고
상기 설정가능한 프리휠링 임계값(UM; UF)은, 상기 산출된 회전수(n)가 설정가능한 회전수 임계값(nM) 미만이면 제 1 전압 임계값(UM)을 나타내며, 그리고 상기 산출된 회전수(n)가 상기 설정가능한 회전수 임계값(nM)을 초과하면 상기 제 1 전압 임계값(UM) 미만인 제 2 전압 임계값(UF)을 나타내는, 작동 상태 회로(6). - 삭제
- 제 1 항에 있어서, 상기 제어 장치(7)는, 상기 검출된 입력 전압(UE)이 설정가능한 단락 임계값보다 더 높으면, 단락 상태로 상기 인버터(3)를 유지하도록 구성되는 하드웨어 회로(7b)를 포함하는, 작동 상태 회로(6).
- 제 1 항에 있어서, 상기 산출된 회전수(n)가 상기 설정가능한 회전수 임계값(nM) 미만이면 상기 설정가능한 단락 임계값은 상기 설정가능한 프리휠링 임계값(UM)에 상응하며, 그리고 상기 산출된 회전수(n)가 상기 설정가능한 회전수 임계값(nM)을 초과하면 상기 설정가능한 단락 임계값은 상기 설정가능한 프리휠링 임계값(UF)보다 더 큰, 작동 상태 회로(6).
- 전기 구동 시스템(10)으로서, 상기 전기 구동 시스템은
고전압원(1)으로부터 직류 전압을 공급받도록 구성되는 직류 전압 중간 회로(2);
각각의 스위칭 장치들(3a; ...; 3f)을 구비한 하프 브리지들(4a, 4b, 4c)을 포함하면서 상기 직류 전압 중간 회로(2)와 연결되어 n ≥ 1인 조건에서 n개의 상 단자(5a, 5b, 5c)에서 n상 전기 기기(5)를 위한 n상 공급 전압을 공급하도록 구성되는 인버터(3); 및
프리휠링 상태 또는 능동 단락을 설정하기 위해 상기 인버터(3)의 복수의 스위칭 장치(3a; ...; 3f)를 제어하도록 구성되는 제 1 항에 따른 작동 상태 회로(6);를 포함하는, 전기 구동 시스템(10). - 제 5 항에 있어서, 상기 전기 구동 시스템은 또한 상기 인버터(3)의 상 단자들(5a, 5b, 5c)과 연결되는 파워 단자들을 가진 n상 전기 기기(5)를 포함하는, 전기 구동 시스템(10).
- 제 5 항에 있어서, 상기 직류 전압 중간 회로(2)는 상기 작동 상태 회로(6)와 연결되어 상기 작동 상태 회로(6)에 전기 에너지를 공급하도록 구성되는, 전기 구동 시스템(10).
- 각각의 스위칭 장치들(3a; ...; 3f)을 구비한 하프 브리지들(4a, 4b, 4c)을 포함하여 n ≥ 1인 조건에서 각각의 하프 브리지들(4a, 4b, 4c)에 할당된 상 단자들(5a, 5b, 5c)을 통해 n상 전기 기기(5)에 n상 공급 전압을 공급하는 인버터(3)의 작동 상태들을 설정하기 위한 방법(40)으로서,
상기 인버터(3)의 입력 전압(UE)을 검출하는 단계(41);
상기 인버터(3)의 상 단자들(5a, 5b, 5c)에서 상 전류들을 검출하는 단계(42);
검출된 입력 전압(UE)이 설정가능한 프리휠링 임계값(UM; UF)보다 더 낮다면, 프리휠링 트리거 신호를 생성하는 단계(43); 및
상기 검출된 입력 전압(UE)에 따라서 단락 상태로부터 프리휠링 모드로 상기 인버터(3)를 스위칭하는 단계(44);를 포함하고,
상기 하프 브리지들(4a, 4b, 4c)의 각각의 스위칭 장치들(3a; ...; 3f)은, 상기 프리휠링 트리거 신호의 수신 후에, 상기 할당된 상 단자(5a, 5b, 5c)에서 각각의 검출되는 상 전류가 제로 크로싱, 또는 상기 인버터(3)에서 개시되는 전류 방향을 나타낼 때 비로소 개방 상태로 전환되고,
상기 방법은, 상기 인버터(3)의 상 단자들(5a, 5b, 5c)에서 상기 인버터(3)의 출력 전압들을 검출하는 단계; 및
상기 검출된 출력 전압들을 기초로 상기 전기 기기(5)의 회전수(n)를 산출하는 단계;를 추가로 포함하며,
상기 설정가능한 프리휠링 임계값(UM; UF)은, 상기 산출된 회전수(n)가 설정가능한 회전수 임계값(nM) 미만이면 제 1 전압 임계값(UM)을 나타내며, 그리고 상기 산출된 회전수(n)가 상기 설정가능한 회전수 임계값(nM)을 초과하면 상기 제 1 전압 임계값(UM) 미만인 제 2 전압 임계값(UF)을 나타내는, 인버터의 작동 상태 설정 방법(40). - 삭제
- 제 8 항에 있어서, 상기 방법은 또한 상기 검출된 입력 전압(UE)이 상기 설정가능한 프리휠링 임계값(UM; UF)보다 높으면, 상기 인버터(3)를 단락 상태로 유지하는 단계를 추가로 포함하는, 인버터의 작동 상태 설정 방법(40).
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PCT/EP2013/065375 WO2014037143A1 (de) | 2012-09-10 | 2013-07-22 | Betriebszustandsschaltung für wechselrichter und verfahren zum einstellen von betriebszuständen eines wechselrichters |
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US9154051B2 (en) | 2015-10-06 |
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DE102012216008A1 (de) | 2014-03-13 |
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