Voltage conversion device and computer-readable recording medium having program recorded thereon for computer to control voltage conversion
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02M-007/5387
H02M-007/537
출원번호
US-0560087
(2004-05-25)
등록번호
US-7355869
(2008-04-08)
우선권정보
JP-2003-204874(2003-07-31)
국제출원번호
PCT/JP04/007469
(2004-05-25)
§371/§102 date
20051209
(20051209)
국제공개번호
WO05/013471
(2005-02-10)
발명자
/ 주소
Okamura,Masaki
출원인 / 주소
Toyota Jidosha Kabushiki Kaisha
대리인 / 주소
Oliff & Berridge, PLC
인용정보
피인용 횟수 :
11인용 특허 :
4
초록▼
In a case where the deviation between a target voltage (Vdc_com1) and an output voltage (Vm) is larger than a specified value (A), a voltage command (Vdc_com2) of a voltage step-up converter (12) is calculated by adding the specified value (A) to the output voltage (Vm). When the output voltage (Vm)
In a case where the deviation between a target voltage (Vdc_com1) and an output voltage (Vm) is larger than a specified value (A), a voltage command (Vdc_com2) of a voltage step-up converter (12) is calculated by adding the specified value (A) to the output voltage (Vm). When the output voltage (Vm) having been decreasing starts to increase, the voltage command (Vdc_com2) is calculated in such a manner that the rate of change of the voltage command (Vdc_com2) is equal to or smaller than a standard value. Using the calculated voltage command (Vdc_com2), feedback control of the voltage step-up converter is conducted in such a manner that the output voltage (Vm) is equal to the target voltage (Vdc_com1).
대표청구항▼
The invention claimed is: 1. A voltage conversion device converting a DC voltage from a DC power supply into an output voltage in such a manner that said output voltage is equal to a first target voltage, comprising: a voltage converter changing a voltage level of said DC voltage to output said out
The invention claimed is: 1. A voltage conversion device converting a DC voltage from a DC power supply into an output voltage in such a manner that said output voltage is equal to a first target voltage, comprising: a voltage converter changing a voltage level of said DC voltage to output said output voltage; detection means detecting said output voltage output from said voltage converter; and control means conducting feedback control of said voltage converter in the manner that said output voltage is equal to said first target voltage, said feedback control conducted, in a case where a first deviation between said first target voltage and said detected output voltage is larger than a predetermined value, by changing a second target voltage of said voltage converter in such a manner that a second deviation between said second target voltage and said output voltage decreases, wherein said control means controls said voltage converter, in a case where said detected output voltage decreases below said first target voltage, so that said output voltage is equal to said first target voltage by conducting first feedback control and second feedback control, said first feedback control refers to feedback control of said voltage converter executed by changing said second target voltage in such a manner that said second deviation is at most said predetermined value, and said second feedback control refers to feedback control of said voltage converter executed, in a case where said detected output voltage having been decreasing starts to increase, by changing said second target voltage in such a manner that the rate of change of said second target voltage is at most a standard value. 2. The voltage conversion device according to claim 1, wherein in the case where said first deviation is larger than said predetermined value, said control means conducts said first feedback control using said second target voltage determined by adding said predetermined value to said detected output voltage. 3. The voltage conversion device according to claim 1, wherein said output voltage is input to an inverter driving an AC motor. 4. The voltage conversion device according to claim 3, wherein said AC motor is a motor for a vehicle. 5. A computer-readable recording medium having a program recorded thereon for a computer to control voltage conversion from a DC voltage from a DC power supply into an output voltage in such a manner that said output voltage is equal to a first target voltage, said computer executing: a first step of detecting said output voltage; and a second step of conducting feedback control of a voltage converter converting said DC voltage into said output voltage, said feedback control conducted, in a case where a first deviation between said first target voltage and said detected output voltage is larger than a predetermined value, by changing a second target voltage of said voltage converter in such a manner that a second deviation between said second target voltage and said output voltage decreases, wherein said second step includes: a first sub-step of calculating said first deviation; a second sub-step of detecting that said first deviation is larger than said predetermined value; a third sub-step of conducting feedback control of said voltage converter by changing said second target voltage in such a manner that said second deviation is at most said predetermined value; and a fourth sub-step of conducting feedback control of said voltage converter, in a case where said detected output voltage having been decreasing starts to increase, by changing said second target voltage in such a manner that the rate of change of said second target voltage is at most a standard value. 6. The computer-readable recording medium according to claim 5, wherein said third sub-step includes the steps of: calculating said second target voltage by adding said predetermined value to said detected output voltage; and conducting feedback control of said voltage converter using said calculated second target voltage. 7. The computer-readable recording medium according to claim 5, wherein said fourth sub-step includes the steps of: detecting that said output voltage having been decreasing starts to increase; calculating a difference between a third target voltage at a first control timing and a fourth target voltage at a second control timing preceding said first control timing; comparing said difference with said standard value; calculating said third target voltage, in a case where said difference is larger than said standard value, by adding said standard value to said fourth target voltage; calculating said third target voltage, in a case where said difference is at most said standard value, by adding said predetermined value to said detected output voltage; and conducting feedback control of said voltage converter using said calculated third target voltage. 8. The voltage conversion device according to claim 2, wherein said output voltage is input to an inverter driving an AC motor. 9. The computer-readable recording medium according to claim 6, wherein said fourth sub-step includes the steps of: detecting that said output voltage having been decreasing starts to increase; calculating a difference between a third target voltage at a first control timing and a fourth target voltage at a second control timing preceding said first control timing; comparing said difference with said standard value; calculating said third target voltage, in a case where said difference is larger than said standard value, by adding said standard value to said fourth target voltage; calculating said third target voltage, in a case where said difference is at most said standard value, by adding said predetermined value to said detected output voltage; and conducting feedback control of said voltage converter using said calculated third target voltage.
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이 특허에 인용된 특허 (4)
Harold L. Massie ; Edward L. Payton ; Robert D. Wickersham, DC-to-DC converter.
Schwartz Jeffrey D. (Loveland CO) Schoenbauer Steve D. (Longmont CO), Reduction of electric motor surge current by non-linear limiting of rate of change of angular velocity.
De Doncker Rik W. A. A. (Schenectady NY) King Robert D. (Schenectady NY), Technique for decoupling the energy storage system voltage from the DC link voltage in AC electric drive systems.
Tanaka, Kazuhiro; Ogino, Daisuke; Saha, Subrata; Izawa, Jin, Electric rotating machine control system and vehicle driving system including the electric rotating machine control system.
Iwata, Akihiko; Ito, Hiroshi; Akagi, Hirofumi; Fujita, Hideaki; Jimichi, Takushi, Power converting apparatus including half-bridge inverters connected between positive and negative terminals of a DC power supply.
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