KR100809451B1 - 태양광 발전 시스템용 3상 전력변환기의 제어장치 - Google Patents
태양광 발전 시스템용 3상 전력변환기의 제어장치 Download PDFInfo
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- KR100809451B1 KR100809451B1 KR1020060070173A KR20060070173A KR100809451B1 KR 100809451 B1 KR100809451 B1 KR 100809451B1 KR 1020060070173 A KR1020060070173 A KR 1020060070173A KR 20060070173 A KR20060070173 A KR 20060070173A KR 100809451 B1 KR100809451 B1 KR 100809451B1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/12—Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S323/00—Electricity: power supply or regulation systems
- Y10S323/906—Solar cell systems
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Abstract
Description
과 정 | V | P | △V |
0→1 | + | + | + |
1→2 | + | - | - |
2→3 | - | + | - |
3→4 | - | - | + |
Course | 듀티비 | V | I=(P) | △D | △V |
1(V0→V1) | - | + | +(+) | - | + |
2(V1→V2) | - | + | -(-) | + | - |
3(V2→V3) | + | - | +(+) | - | - |
4(V3→V4) | + | - | -(-) | + | + |
상기에 있어서 POS MPPT(Photovoltaic Senseless Maximum Power Point Tracking) 제어법이란, 기존의 보편적인 전력 비교법과 일정전압제어법과 같이 다양한 태양광 셀의 최대출력제어법 중의 하나로써, 태양광 발전시스템 운용 시, 태양광 발전시스템의 최대출력을 생산하기 위해 발명된 제어방법으로 태양광 셀과 부하를 연결시키는 전력변환장치의 핵심기술이다. 즉, 부하로 유입되는 전류량은 태양광 셀이 생산하는 에너지와 비례하여 증가한다는 실험적 결과를 바탕으로, 전력변환장치는 POS 제어알고리즘에 따라 부하전류의 최대치를 추종함으로써 동시에 태양광 어레이의 최대전력을 생산하는 것을 말한다.
Claims (1)
- 태양전지 셀과, DC 필터, 3상 DC/AC 컨버터 및 3상 AC 필터를 구비하고 태양전지 셀에서 출력되는 직류전압을 교류전압으로 변환시켜 부하 및 유틸리티에 공급시켜 주는 태양광 발전 시스템용 3상 전력변환기의 제어장치를 구성함에 있어서,상기 3상 AC 필터에 설치되어 있는 변류기들을 통해 검출되는 3상 출력전류(Ia, Ib, Ic)에 POS MPPT(Photovoltaic Senseless Maximum Power Point Tracking) 제어법을 적용하여 정격전류(Iarms, Ibrms,Icrms)를 산출해 내는 POS MPPT 제어부와;상기 부하로부터 저주파 대역의 신호만을 통과시켜 주는 대역 여파기와;상기 POS MPPT 제어부에서 출력되는 정격전류(Iarms, Ibrms,Icrms)의 위상을 상기 대역 여파기에서 제공하는 위상에 일치시켜 3상 기준전류(Irefa, Irefb, Irefc)를 만들어주는 3상 기준전류 생성기와;상기 3상 기준전류 생성기에서 만들어진 3상 기준전류(Irefa, Irefb, Irefc)에서 변류기들에 의해 검출된 3상 출력전류(Ia, Ib, Ic)를 감산하여 그 차 전류를 산출하는 3상 전류 감산기와;상기 3상 전류 감산기에서 출력되는 3상 차 전류(Irefa-Ia, Irefb-Ib, Irefc-Ic)에 부응하는 제어신호를 PWM 신호 발생기로 출력시켜 주는 PI 제어기와;상기 PI 제어기에서 출력되는 제어신호에 부응하는 PWM 위상 제어신호를 발생하여 3상 DC/AC 컨버터에서 출력되는 3상 교류전압이 매순간 변화되는 태양전지 셀의 전압 및 전류의 변화에 부응하여 최대출력 점을 추종되며 실시간으로 출력되도록 하는 PWM 신호 발생기로 구성한 것을 특징으로 하는 태양광 발전 시스템용 3상 전력변환기의 제어장치.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101023501B1 (ko) | 2008-10-21 | 2011-03-21 | 한빛이디에스(주) | 태양광 발전 시스템용 피씨에스 및 피씨에스의 수명 예측을위한 커패시턴스 산출 방법 |
KR101223611B1 (ko) | 2012-06-27 | 2013-01-17 | 채광식 | 가변 전압 증분을 이용한 섭동 및 관측 방법을 이용하여 최대 전력을 추정하는 태양광 발전 제어 시스템 및 방법 |
WO2013141452A1 (ko) * | 2012-03-22 | 2013-09-26 | 한빛이디에스(주) | H-bridge 2-string 단상 계통연계용 pcs의 제어 시스템 |
CN103684028A (zh) * | 2013-12-16 | 2014-03-26 | 华北电力大学(保定) | 一种多变压器推挽型光伏逆变器 |
Families Citing this family (2)
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KR101690222B1 (ko) * | 2014-10-30 | 2016-12-27 | (주) 세스 | 풍력발전장치의 전류제어방법. |
KR102630233B1 (ko) * | 2023-03-31 | 2024-01-29 | 이앤에이치(주) | 전압 센서리스 mppt 장치 및 그 장치를 이용하는 mppt 기법 |
Citations (1)
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KR20060044698A (ko) * | 2004-05-21 | 2006-05-16 | 이현우 | 태양광 발전 시스템의 부분 그늘 보상 방법 |
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KR20060044698A (ko) * | 2004-05-21 | 2006-05-16 | 이현우 | 태양광 발전 시스템의 부분 그늘 보상 방법 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101023501B1 (ko) | 2008-10-21 | 2011-03-21 | 한빛이디에스(주) | 태양광 발전 시스템용 피씨에스 및 피씨에스의 수명 예측을위한 커패시턴스 산출 방법 |
WO2013141452A1 (ko) * | 2012-03-22 | 2013-09-26 | 한빛이디에스(주) | H-bridge 2-string 단상 계통연계용 pcs의 제어 시스템 |
KR101223611B1 (ko) | 2012-06-27 | 2013-01-17 | 채광식 | 가변 전압 증분을 이용한 섭동 및 관측 방법을 이용하여 최대 전력을 추정하는 태양광 발전 제어 시스템 및 방법 |
CN103684028A (zh) * | 2013-12-16 | 2014-03-26 | 华北电力大学(保定) | 一种多变压器推挽型光伏逆变器 |
CN103684028B (zh) * | 2013-12-16 | 2016-08-03 | 华北电力大学(保定) | 一种多变压器推挽型光伏逆变器 |
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