[특허]Active power conditioner for reactive and harmonic compensation having PWM and stepped-wave inverters

Active power conditioner for reactive and harmonic compensation having PWM and stepped-wave inverters 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G05F-001/70 H02M-001/12
출원번호	US-0667924 (1996-06-20)
발명자 / 주소	Venkata Subrahmanyam S. Raju N. Ravisekhar Kagalwala Raxit A. Sastry Vedula V.,INX
출원인 / 주소	University of Washington
대리인 / 주소	Anderson
인용정보	피인용 횟수 : 58 인용 특허 : 0

초록 ▼

An active power quality conditioner for compensating reactive power and harmonic distortion in power systems. A pulse width modulated (PWM) inverter (70) for each phase is controlled to produce a harmonic distortion compensation signal that is coupled to an inductor. The inductor is connected in series between a stepped-wave inverter (84) and one phase of the power line. A current produced by the stepped-wave inverter compensates for the reactance of a load coupled to the power line. The PWM inverter operates at a frequency that is substantially greater than the fundamental frequency of the power line and is not exposed to the full power line voltage; it can be constructed using components of relatively low power and voltage rating. In contrast, the stepped-wave inverter, which is decoupled from the PWM inverter, operates at the fundamental frequency and is subjected to most of the stress. Both shunt coupled and series coupled compensators are described. Compensation for an unbalanced load is provided using a compensator (364) that includes a 24-pulse stepped-wave inverter (366).

대표청구항 ▼

[ The invention in which an exclusive right is claimed is defined by the following:] [14.] A compensator for reactive power and harmonic distortion on an alternating current three-phase power line that supplies power to a load, comprising:(a) pulse width modulated inverter means coupled to each phase of the three-phase power line, for producing three harmonic distortion compensation signals, each of which compensate for a harmonic distortion caused by the load on a different phase of the three-phase power line;(b) a stepped-wave inverter that produces a reactive compensation signal to compensate each of the three phases for a reactance of the load coupled to the three-phase power line; and(c) means for coupling the pulse width modulation inverter means and the stepped-wave inverter to the three-phase power line, while decoupling the pulse width modulator means from the stepped-wave inverter, so that a switching frequency of the pulse width modulation inverter means is substantially greater than a fundamental frequency of an alternating current flowing in the three-phase power line, while a switching frequency of the stepped-wave inverter is substantially equal to the fundamental frequency of the alternating current flowing in the three-phase power line.

이 특허를 인용한 특허 (58)

Lee, Yu-Lung, Active compensation device.
상세보기
Bernhard, Tobias; Dommaschk, Mike; Dorn, Jörg; Euler, Ingo; Karlecik-Maier, Franz; Lang, Jörg; Strauss, John-William; Tu, Quoc-Buu; Wittstock, Carsten; Würflinger, Klaus, Active filter having a multilevel topology.
상세보기
Julian Alexander L., Active filtering of AC/DC switched converter input current.
상세보기
Wu, Chin-Chang; Chou, Hung-Liang; Hsu, Wen-Pin; Kuo, Yu-Ting; Yang, Jiunn-Jye, Active power filter.
상세보기
Lam, Chi-Seng; Wong, Man-Chung; Choi, Wai-Hei; Han, Ying-Duo, Adaptive DC-link voltage controlled LC coupling hybrid active power filters for reactive power compensation.
상세보기
Escobar, Gerardo; Stankovic, Alex M.; Mattavelli, Paolo, Adaptive controller for d-statcom in the stationary reference frame to compensate for reactive and harmonic distortion under unbalanced conditions.
상세보기
Pace,Gary; Robbins, Jr.,Larry Charles, Adaptive gate drive for switching devices of inverter.
상세보기
McDaniel, William D.; McDaniel, Gail A.; McDaniel, Timothy J., Automatic power factor correction system.
상세보기
William D. McDaniel ; Gail A. McDaniel ; Timothy J. McDaniel, Automatic power factor correction system.
상세보기
McDaniel,William D.; McDaniel,Gail A.; McDaniel,Timothy J., Automatic power factor correction using power measurement chip.
상세보기
Edris, Abdel-Aty, Automatic self-adjusting voltage controller.
상세보기
Wrathall, Robert S., Boost-buck power factor correction.
상세보기
Galloway James H. ; Giardini Douglas M., Constant current regulator using IGBT control.
상세보기
Fujii Toshiyuki,JPX ; Beer Andreas,CHX, Controller for performing a decoupling control of a transformerless reactive series compensator.
상세보기
Escobar Valderrama, Gerardo; Martinez Montejano, Misael Fransisco; Valdez Fernandez, Andres Alejandro; Torres Olguin, Raymundo Enrique, Controller for the three-phase cascade multilevel converter used as shunt active filter in unbalanced operation with guaranteed capacitors voltages balance.
상세보기
Adra, Rodwan Tarek; Sopko, Jr., Thomas Michael; Wai, Jackson; Nino Baron, Carlos Eduardo, Electric drive having an actively controlled DC bus.
상세보기
Kōpken,Hans Georg, Evaluation circuit for a current sensor using the compensation principle, in particular for measuring direct and alternating currents, and a method for operating such a current sensor.
상세보기
Baumgart,Gary E.; Sen,Kalyan K., Harmonic control and regulation system for harmonic neutralized frequency changer.
상세보기
Twiney, Robert Christopher; Morter, Christopher Martin, Heating system, heater, and methods of heating a component.
상세보기
Yoscovich, Ilan, High frequency multi-level inverter.
상세보기
Bebic, Jovan; Lehn, Peter, Hybrid power flow controller and method.
상세보기
Ganev,Evgeni, Hybrid-electric vehicle having a matched reactance machine.
상세보기
Xu, Chunchun; Ritter, Allen Michael; Harbourt, Cyrus David; Garces, Luis Jose; Luo, Cheng, Load commutated inverter drive systems for high power drive applications.
상세보기
Xiang Youqing, Method and apparatus for active common-mode voltage compensation in induction motor systems.
상세보기
Fornage, Martin, Method and apparatus for three-phase power line communications.
상세보기
Fornage, Martin; Huang, Jianzhong; Liu, Fenghua; Laudel, Kennan; Pope, Stephen, Method and apparatus for three-phase power line communications.
상세보기
Fornage, Martin; Huang, Jianzhong; Liu, Fenghua; Laudel, Kennan; Pope, Stephen, Method and apparatus for three-phase power line communications.
상세보기
Seidler, Klaus; Engelhardt, Joerg, Method and arrangement for harmonic-wave suppression for AC voltage-operated PTC heaters.
상세보기
Garcia, Jorge Martinez, Method and control arrangement for controlling central capacitors in wind power plants.
상세보기
Weber, Marc; Plo, Aymeric; Blache, Denis, Method for instantaneously determining rates of distortion of signals on an AC electrical network, and associated device.
상세보기
Conticelli, Fabio; Beiser, Dirk; Bohren, Patrick, Method of operating a converter circuit.
상세보기
Louis Chi Hoi Cheng CA, Mimic high pass filter in a protective relay.
상세보기
Tsang, Kai Ming; Chan, Wai Lok, Multi-function three-phase active power filter.
상세보기
Yoscovich, Ilan; Glovinsky, Tzachi; Sella, Guy; Galin, Yoav, Multi-level inverter with flying capacitor topology.
상세보기
Edwards Charles Wood, Neutral point connected apparatus providing compensation to an AC power line.
상세보기
Mohan, Ned; Mohapatra, Krushna K., Open-ended control circuit for electrical apparatus.
상세보기
Nam, Su-Chul; Shin, Jeong-Hoon; Cha, Seung-Tae; Lee, Jae-Gul; Kim, Tae-Kyun, Optimized system voltage control method through coordinated control of reactive power source.
상세보기
Robert D. Johnson, PWM active filter for DC power systems.
상세보기
Ichinose,Masaya; Oohara,Shinya; Futami,Motoo; Imazu,Yasuhiro, Power converter for doubly-fed power generator system.
상세보기
Mori, Osamu; Yamada, Masaki; Iwata, Akihiko, Power converting apparatus.
상세보기
Wrathall, Robert S., Power factor correction by measurement and removal of overtones.
상세보기
Wrathall, Robert S., Power factor correction by measurement and removal of overtones.
상세보기
Huggett, Colin; Kalman, Gabor, Power generating system including permanent magnet generator and shunt AC regulator.
상세보기
Hochgraf Clark Glenn, Power inverter apparatus using a transformer with its primary winding connected the source end and a secondary winding.
상세보기
Peng Fang Zheng, Power line conditioner using cascade multilevel inverters for voltage regulation, reactive power correction, and harmonic filtering.
상세보기
Yoscovich, Ilan; Glovinsky, Tzachi; Sella, Guy; Galin, Yoav, Power ripple compensation.
상세보기
Agudo Araque, Andres, Reactive power compensation in electrical power system.
상세보기
Angquist, Lennart, STATCOM system for providing reactive and/or active power to a power network.
상세보기
Khersonsky, Yuri; Lee, Robert H., Step switched PWM sine generator.
상세보기
Khersonsky, Yuri; Lee, Robert H., Step switched PWM sine generator.
상세보기
Ainsworth John Desmond,GBX, Switching control arrangement.
상세보기
Schnetzka,Harold Robert; Jadric,Ivan; Slothower,Scott Victor, System and method for controlling a variable speed drive.
상세보기
Ghosh,Rajesh; Phansalkar,Bansidhar Jagannath; Colombi,Silvio, System and method for power conversion using semiconductor switches having reverse voltage withstand capability.
상세보기
Yuan, Xiaoming; Tan, Zhuohui; Klodowski, Anthony Michael, System and method for reactive power regulation.
상세보기
Wrathall, Robert Stephen, Systems and methods for high speed power factor correction.
상세보기
Chai, Harry H.; Said, Waleed M., Topologies and methods for turbine engine start inverters.
상세보기
Smedley Keyue M. ; Zhou Luowei,CNX, Unified constant-frequency integration control of active power filters.
상세보기
Ichinose, Masaya; Oohara, Shinya; Futami, Motoo, Wind power generation apparatus, wind power generation system and power system control apparatus.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Active power conditioner for reactive and harmonic compensation having PWM and stepped-wave inverters 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (58)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Active power conditioner for reactive and harmonic compensation having PWM and stepped-wave inverters 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (58)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트