JPS6489968A - Inverter controller - Google Patents

Inverter controller

Info

Publication number
JPS6489968A
JPS6489968A JP62243479A JP24347987A JPS6489968A JP S6489968 A JPS6489968 A JP S6489968A JP 62243479 A JP62243479 A JP 62243479A JP 24347987 A JP24347987 A JP 24347987A JP S6489968 A JPS6489968 A JP S6489968A
Authority
JP
Japan
Prior art keywords
power source
voltage
inverter
pass
power
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
JP62243479A
Other languages
Japanese (ja)
Inventor
Masashi Toyoda
Akira Kobayashi
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 JP62243479A priority Critical patent/JPS6489968A/en
Publication of JPS6489968A publication Critical patent/JPS6489968A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To suppress excess current at the time of switching a power source, by setting the output voltage of an inverter to be first voltage equal to or lower than second line voltage, when power is switched to a first power source from a second power source. CONSTITUTION:An inverter section is composed of a DC power source 1 and an inverter circuit 4, and an AC filter 5 connected to the output, and the output of the filter 5 and a by-pass power source(a second power source)10 are connected to a by-pass change-over circuit(a power switching means) 8, and by by-pass switching command, an inverter(a first power source) and the by-pass power source 10 are switched to each other, and current is fed to a load 11. The inverter circuit 4 is controlled by a PWM controlling circuit 12. When said first and second power sources are switched and current is fed, then inverter output voltage is set to be first voltage equal to or lower than the voltage of the second power source 10, and is changed from the first voltage to specified voltage for a specified time, and the output voltage of the inverter is controlled.
JP62243479A 1987-09-28 1987-09-28 Inverter controller Pending JPS6489968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243479A JPS6489968A (en) 1987-09-28 1987-09-28 Inverter controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243479A JPS6489968A (en) 1987-09-28 1987-09-28 Inverter controller

Publications (1)

Publication Number Publication Date
JPS6489968A true JPS6489968A (en) 1989-04-05

Family

ID=17104501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243479A Pending JPS6489968A (en) 1987-09-28 1987-09-28 Inverter controller

Country Status (1)

Country Link
JP (1) JPS6489968A (en)

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