JPS5615171A - Digital controller - Google Patents

Digital controller

Info

Publication number
JPS5615171A
JPS5615171A JP9041679A JP9041679A JPS5615171A JP S5615171 A JPS5615171 A JP S5615171A JP 9041679 A JP9041679 A JP 9041679A JP 9041679 A JP9041679 A JP 9041679A JP S5615171 A JPS5615171 A JP S5615171A
Authority
JP
Japan
Prior art keywords
current
voltage
control angle
read
processing steps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9041679A
Other languages
Japanese (ja)
Inventor
Hiroo Konishi
Hisao Amano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9041679A priority Critical patent/JPS5615171A/en
Publication of JPS5615171A publication Critical patent/JPS5615171A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Feedback Control In General (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To accomplish a higher speed and stable operation with less processing steps by selecting the optimal control angle from the table precalculated, based on the DC current and the AC voltage measured during the reversed conversion running of the A/D converter. CONSTITUTION:The A/D converters 3 and 3' adapted to convert the AC current to DC one and vice versa are controlled with the controlling devices 6 and 6' as given the operation command value from the central control unit 5. To calculate the control angle corresponding to the minimum surplus angle in the digitalization of this device, DC current Id is read into the computer for a level comparison to obtain the DC current Ii through a quantization. Likewise, AC voltage Ea is read in for level comparison to obtain the AC voltage Eg. Then, based on the DC current Ei and the AC voltage Ej, the control angle betaij is derived from the table precalculated to be processed. This simplifies the processing while reducing the processing steps, thereby assuring a digital controller of high speed and high reliable ility.
JP9041679A 1979-07-18 1979-07-18 Digital controller Pending JPS5615171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9041679A JPS5615171A (en) 1979-07-18 1979-07-18 Digital controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9041679A JPS5615171A (en) 1979-07-18 1979-07-18 Digital controller

Publications (1)

Publication Number Publication Date
JPS5615171A true JPS5615171A (en) 1981-02-13

Family

ID=13997982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9041679A Pending JPS5615171A (en) 1979-07-18 1979-07-18 Digital controller

Country Status (1)

Country Link
JP (1) JPS5615171A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61120209A (en) * 1984-11-16 1986-06-07 Ono Sokki Co Ltd Matching method
JPS6266303U (en) * 1985-10-15 1987-04-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61120209A (en) * 1984-11-16 1986-06-07 Ono Sokki Co Ltd Matching method
JPS6266303U (en) * 1985-10-15 1987-04-24

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