JPS57208869A - Parallel system of self-excited and separately excited inverter - Google Patents
Parallel system of self-excited and separately excited inverterInfo
- Publication number
- JPS57208869A JPS57208869A JP56091990A JP9199081A JPS57208869A JP S57208869 A JPS57208869 A JP S57208869A JP 56091990 A JP56091990 A JP 56091990A JP 9199081 A JP9199081 A JP 9199081A JP S57208869 A JPS57208869 A JP S57208869A
- Authority
- JP
- Japan
- Prior art keywords
- excited inverter
- self
- currents
- inverter
- separately excited
- 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
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)
- Inverter Devices (AREA)
Abstract
PURPOSE:To reduce the capacity of the self-excited inverter, and to ensure the safety of operation by mounting a filter for absorbing higher harmonic currents as the output of the separately excited inverter and connecting the self-excited inverter in parallel with the separately excited inverter. CONSTITUTION:The higher harmonic current absorbing filter 5 connected in parallel with the separately excited inverter 1 absorbs difference between the output currents of the separately excited inverter and the fundamental harmonic currents. One part of higher harmonic filter currents is changed into commutation currents, and the separately excited inverter 1 side is equivalent with a current source supplying simple sine wave currents when the separately excited inverter 1 side is viewed from the output of the self-excited inverter 2'. On the other hand, a plural pair of the self-excited inverters 2' are mounted, the higher harmonic of a voltage wave-form is reduced up to an extent which is not at issue practically, and the voltage wave-form, the output thereof is square wavy, is molded to a sine wave.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56091990A JPS57208869A (en) | 1981-06-15 | 1981-06-15 | Parallel system of self-excited and separately excited inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56091990A JPS57208869A (en) | 1981-06-15 | 1981-06-15 | Parallel system of self-excited and separately excited inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57208869A true JPS57208869A (en) | 1982-12-22 |
Family
ID=14041885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56091990A Pending JPS57208869A (en) | 1981-06-15 | 1981-06-15 | Parallel system of self-excited and separately excited inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57208869A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014531886A (en) * | 2011-09-12 | 2014-11-27 | エスエムエー ソーラー テクノロジー アーゲー | Safety devices for photovoltaic systems |
-
1981
- 1981-06-15 JP JP56091990A patent/JPS57208869A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014531886A (en) * | 2011-09-12 | 2014-11-27 | エスエムエー ソーラー テクノロジー アーゲー | Safety devices for photovoltaic systems |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IL73304A (en) | P.w.m.inverter with reduced harmonics | |
JPS6485574A (en) | Power converting device | |
JPS6474068A (en) | Current type inverter | |
KR920005441A (en) | Inverter | |
ES474345A1 (en) | Balanced control waveform for reducing inverter harmonics | |
JPS57208869A (en) | Parallel system of self-excited and separately excited inverter | |
JPS6455076A (en) | Feeding system using polyphase multiple pwm inverter | |
JPS53124741A (en) | Short protector for power converter with dc circuit | |
JPS5653578A (en) | Semiconductor power converter | |
JPS5376333A (en) | Power supply effective at power failure | |
JPS563338A (en) | Energy accumulator having fly-wheel | |
JPS6485530A (en) | Surge suppressor | |
JPS573581A (en) | Overvoltage preventing apparatus for inverter | |
JPS5445739A (en) | Inverter divece | |
JPS5773A (en) | Converter circuit in inverter | |
JPS5271654A (en) | Over-voltage protector for inverter | |
JPS56145780A (en) | Inverter | |
JPS5347925A (en) | Inverter overvoltage protection system | |
JPS5344830A (en) | Variable frequency inverter unit | |
JPS5631376A (en) | Protective circuit for direct current overvoltage of inverter | |
JPS57153570A (en) | Constant-voltage and constant-frequency power source | |
JPS57196878A (en) | High frequency inverter | |
JPS6455078A (en) | Feeding system using three-phase multiple pwm inverter | |
JPS5413915A (en) | Regenerative control system for ac electric motor vehicle | |
Novotny | Power Losses in Electric Circuits. A Study for Medium Frequency Solid State Invertors Used in Inductive Electroheating |