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특허 상세정보

Variable speed AC drive control

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02P-005/28   
미국특허분류(USC) 318/801 ; 318/807 ; 363/160 ; 363/165
출원번호 US-0106787 (1993-08-16)
우선권정보 AU-0006281 (1989-09-11)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 0
초록

A method for controlling the speed of an AC machine (12) is described. The AC machine (12) receives three output phases (A,B,C) supplied from a cycloconverter (10) which is connected to an input supply (R,Y,B) of frequency f1. The cycloconverter (10) is caused to operate in three modes under control of a microprocessor (25). The first mode supplies the AC machine (12) in the frequency range 0 to f0, by conventional cycloconverting to generate a near continuum of frequencies. The second mode operates the cycloconverter (10) to synthesize a number of frequ...

대표
청구항

A method of controlling the speed of a rotating AC machine, the AC machine being connected to a frequency converter which includes a plurality of switching elements connected to respective phases of a multi-phase input power supply and a control for selectively switching the switching elements, the method comprising: operating the AC machine in three exclusive speed ranges within the range 0 to the frequency of the input supply, f1, wherein each of the three speed ranges corresponds to a separate operating mode of the frequency converter, and (i) in the ...

이 특허를 인용한 특허 피인용횟수: 14

  1. Bock Christopher H.. Application-specific electronic motor starter. USP2000056064173.
  2. Shirotori Hiroshi (Nagano JPX). Control apparatus for a pulse motor. USP1997115686803.
  3. Baker Roy S. (Rockford IL) Nuechterlein Paul E. (Rockford IL). Converter enhanced variable frequency power bus architecture. USP1997055627744.
  4. Gabrys,Christopher W.. High efficiency combination motor and drive. USP2008087411325.
  5. Maurio Joseph M. ; Duba Gregory A. ; Thaxton Edgar S.. Method and arrangement for a high voltage single-stage variable speed drive. USP2000096118932.
  6. Peter M. Rinaldi ; Edgar S. Thaxton ; Gene Castles. Modular transformer arrangement for use with multi-level power converter. USP2002016340851.
  7. Kitano, Nobuki. Motor control method and device thereof. USP2009087579800.
  8. Maeda, Toshiyuki. Motor controlling method and apparatus thereof. USP2013118587241.
  9. Maeda, Toshiyuki. Motor controlling method and apparatus thereof. USP2012038129933.
  10. Maeda, Toshiyuki. Motor controlling method and apparatus thereof. USP2012128339083.
  11. Maeda,Toshiyuki. Motor controlling method and apparatus thereof. USP2006077075260.
  12. Alfred H. Barrett ; Gary A. Cameron. Multi-mode converter for a motor vehicle electrical system. USP2002106469476.
  13. Pinkerton, III, Joseph F.; Badger, David A.. Multiple path variable speed constant frequency device having automatic power path selection capability. USP2005016844706.
  14. Pinkerton, III,Joseph F.; Badger,David A.. Multiple path variable speed constant frequency device having automatic power path selection capability. USP2006047030593.