Synchronized reapplication of power for driving an electric motor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02P-001/26
G01R-031/327
H01H-050/16
G01K-007/00
H01H-047/00
H01H-047/22
H01H-050/00
H01H-047/26
H01H-047/02
H01H-050/38
H01H-050/32
H01H-089/00
H01H-009/26
H01H-009/30
H02P-001/32
H01H-009/56
H01H-071/08
출원번호
US-0832780
(2015-08-21)
등록번호
US-9772381
(2017-09-26)
발명자
/ 주소
Bock, Christopher H.
Wieloch, Christopher J.
Kinsella, James J.
Dziekonski, Stefan T.
출원인 / 주소
Rockwell Automation Technologies, Inc.
대리인 / 주소
Fletcher Yoder P.C.
인용정보
피인용 횟수 :
0인용 특허 :
65
초록▼
One embodiment describes a method that includes, when a motor is disconnected from a power source: starting, using a control circuitry, a counter at a first voltage zero-crossing by either a source voltage or a back electromotive force generated by the motor; stopping, using the control circuitry, t
One embodiment describes a method that includes, when a motor is disconnected from a power source: starting, using a control circuitry, a counter at a first voltage zero-crossing by either a source voltage or a back electromotive force generated by the motor; stopping, using the control circuitry, the counter at a next subsequent second voltage zero-crossing by either the source voltage or the back electromotive force; monitoring, using the control circuitry, a trend in counter values; and instructing, using the control circuitry, one or more switching devices to reconnect the power source to the motor after a local minimum in the counter value trend such that the source voltage is leading the back electromotive force.
대표청구항▼
1. A method comprising, when a motor is disconnected from a power source: starting, using a control circuitry, a counter at a first voltage zero-crossing by either a source voltage or a back electromotive force generated by the motor;stopping, using the control circuitry, the counter at a next subse
1. A method comprising, when a motor is disconnected from a power source: starting, using a control circuitry, a counter at a first voltage zero-crossing by either a source voltage or a back electromotive force generated by the motor;stopping, using the control circuitry, the counter at a next subsequent second voltage zero-crossing by either the source voltage or the back electromotive force;monitoring, using the control circuitry, a trend in counter values; andinstructing, using the control circuitry, one or more switching devices to reconnect the power source to the motor after a local minimum in the trend in the counter values to facilitate reconnecting the power source to the motor when the source voltage is leading the back electromotive force. 2. The method of claim 1, wherein stopping the counter comprises storing a counter value of the counter in memory and resetting the counter, wherein monitoring the trend in counter values comprises retrieving the counter value stored from the memory. 3. The method of claim 1, comprising: starting, using the control circuitry, the counter at a third voltage zero-crossing by either the source voltage or the back electromotive force; andstopping, using the control circuitry, the counter at a next subsequent fourth voltage zero-crossing by either the source voltage or the back electromotive force. 4. The method of claim 1, wherein instructing the one or more switching devices to reconnect the power source comprises instructing the one or more switching devices to reconnect the power source when the trend in the counter values is increasing. 5. The method of claim 1, wherein instructing the one or more switching devices to reconnect the power source comprises: determining a counter value at the local minimum; andreconnecting the power source only if the counter value at the local minimum is less than a threshold value. 6. The method of claim 1, wherein the first voltage zero-crossing is a source voltage zero-crossing and the second voltage zero-crossing is a back electromotive force zero-crossing. 7. The method of claim 1, wherein the first voltage zero-crossing and the second voltage zero-crossing are both source voltage zero-crossings. 8. The method of claim 1, wherein the first voltage zero-crossing is a back electromotive force zero-crossing and the second voltage zero-crossing is a source voltage zero-crossing. 9. The method of claim 1, wherein the back electromotive force is generated by momentum of the motor that causes the motor to rotate. 10. The method of claim 1, wherein frequency of the back electromotive force is decreasing and frequency of the source voltage is relatively constant. 11. The method of claim 1, comprising predicting, using the control circuitry, when the local minimum will occur based on type of load the motor is actuating. 12. The method of claim 1, comprising determining, using the control circuitry, type of load the motor is actuating based at least in part on when the local minimum occurs.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (65)
Polster Louis S. (1017 E. Fairmount Rd. Burbank CA 91501) Flinders Ronald R. (Sunland CA), Apparatus and method for relay control.
Kellogg Walter J. (Brighton Township ; Beaver County PA) Scott Arden L. (La Crescenta CA) Seneadza Samuel K. (Carson CA), Circuit for controlling multiple rated motors.
Bloomer Milton D. (Scotia NY) Ciccone Joseph L. (Albany NY) Harnden ; Jr. John D. (Schenectady NY) Kornrumpf William P. (Schenectady NY) Shattuck Donald P. (Scotia NY), Diode assisted relay contactor.
Petrie Adelore F. (Arlington Heights IL) Karlmann Thomas F. (Schaumburg IL) Parmelee Steven G. (Algonquin IL) Edwards Arthur J. (Hoffman Estates IL), Dual limit solenoid driver control circuit.
Devautour Jol (Saint Germain en Laye FRX) Guery Jean-Pierre (Le Pecq FRX) Lefebvre Herv (Carrieres Sur Seine FRX), High voltage circuit breaker contact structure including ionization slot and secondary arcing features.
Zhou, Xin; Little, Michael T.; Kinsella, James; Wieloch, Chris; Hetzmannseder, Engelbert, Method and apparatus to control modular asynchronous contactors.
Zhou, Xin; Little, Michael T.; Kinsella, James; Wieloch, Chris; Hetzmannseder, Engelbert, Method and apparatus to control modular asynchronous contactors.
Zhou, Xin; Little, Michael T.; Kinsella, James; Wieloch, Chris; Hetzmannseder, Engelbert, Method and apparatus to control modular asynchronous contactors.
Kinsella,James; Zhou,Xin; Wieloch,Christopher J.; Little,Michael T., Method and apparatus to independently control contactors in a multiple contactor configuration.
Kinsella,James J.; Unsworth,Peter J.; Zhou,Xin; Wieloch,Christopher J.; Little,Michael T., Method and system of controlling asynchronous contactors for a multi-phase electric load.
Bielinski Ralph F. (South Milwaukee WI) Jaeschke James R. (Waukesha WI) Krstic Slobodan (Milwaukee WI) Piber Earl T. (Oconomowoc WI) Theisen Peter J. (West Bend WI), Solid state hybrid switch.
Shea John J. (Ross Township PA) Bauer James A. (Asheville NC) Wehrli ; III Henry A. (Monroeville PA) Mueller Denis A. (Asheville NC) Wilsdon Thomas A. (Skyland NC) Wilson John R. (Fletcher NC), Synchronous contactor.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.