JPS57135681A - Controlling method for pulse width modulation type inverter - Google Patents
Controlling method for pulse width modulation type inverterInfo
- Publication number
- JPS57135681A JPS57135681A JP56018152A JP1815281A JPS57135681A JP S57135681 A JPS57135681 A JP S57135681A JP 56018152 A JP56018152 A JP 56018152A JP 1815281 A JP1815281 A JP 1815281A JP S57135681 A JPS57135681 A JP S57135681A
- Authority
- JP
- Japan
- Prior art keywords
- signal generator
- pulse width
- motor
- prescribed
- width modulation
- 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.)
- Granted
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
- H02M7/505—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 using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/525—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
- H02M7/527—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation
Abstract
PURPOSE:To reduce the torque pulsation of the prescribed frequency by increasing the pulse width at the prescribed angle position of a voltage waveform of line of a motor. CONSTITUTION:A signal generator 10 generates a 60 deg. interval signal via the outputs A-C of a 3-phase signal generator, and applies it to a signal generator 10'. thus, the signal generator 10' form a detecting circuit for obtaining triangular wave synchronizing signal over the positions of 0 deg., + or -60 deg., + or -120 deg. via delay circuits 11, 11' and an AND circuit 12. The pulse widths of the voltage waveforms of the line applied to a motor at 0 deg., + or -60 deg., + or -120 deg., + or -180 deg. are suitably increased to correct the ratio of seventh and fifth harmonic waves to 7:5. In this manner , the torque pulsation of the frequency 6f1 of the motor represented by the prescribed equation can be effectively reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56018152A JPS57135681A (en) | 1981-02-12 | 1981-02-12 | Controlling method for pulse width modulation type inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56018152A JPS57135681A (en) | 1981-02-12 | 1981-02-12 | Controlling method for pulse width modulation type inverter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57135681A true JPS57135681A (en) | 1982-08-21 |
JPS6148358B2 JPS6148358B2 (en) | 1986-10-23 |
Family
ID=11963637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56018152A Granted JPS57135681A (en) | 1981-02-12 | 1981-02-12 | Controlling method for pulse width modulation type inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57135681A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5594113A (en) * | 1988-06-23 | 1997-01-14 | Associates Of Cape Cod, Inc. | Endotoxin binding and neutralizing protein and uses thereof |
-
1981
- 1981-02-12 JP JP56018152A patent/JPS57135681A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5594113A (en) * | 1988-06-23 | 1997-01-14 | Associates Of Cape Cod, Inc. | Endotoxin binding and neutralizing protein and uses thereof |
US5614369A (en) * | 1988-06-23 | 1997-03-25 | Associates Of Cape Cod, Inc. | Endotoxin binding and neutralizing protein and uses thereof |
US5627266A (en) * | 1988-06-23 | 1997-05-06 | Associates Of Cape Cod, Inc. | Endotoxin binding and neutralizing protein and uses thereof |
US6384200B1 (en) | 1988-06-23 | 2002-05-07 | Associates Of Cape Cod, Inc. | Endotoxin binding and neutralizing protein and uses thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6148358B2 (en) | 1986-10-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0083012A1 (en) | Method and system for controlling output voltage of pulse width modulation inverter | |
JPS5549996A (en) | Motor drive system using pulse width modulation inverter | |
JPS57135681A (en) | Controlling method for pulse width modulation type inverter | |
CA2218937A1 (en) | A pulse width modulation device for converting direct voltage into a three-phase alternating voltage | |
GB2423198A (en) | Inverter Apparatus | |
EP0624834A3 (en) | Single cycle positioning system | |
ES8706294A1 (en) | Induction motor synthesis control apparatus and method | |
JPS5788897A (en) | Control circuit for inverter | |
JPS5656184A (en) | Control device for synchronous motor | |
JPS56101584A (en) | Electronic timepiece | |
JP3391180B2 (en) | Inverter device | |
JPS5437672A (en) | Polyphase reversible and variable erequency oscillator | |
JPS548830A (en) | Inverter | |
ATE126632T1 (en) | METHOD AND DEVICE FOR FULL WAVE RECTIFICATION OF A THREE-PHASE SIGNAL IN A STAR CONNECTION. | |
JPS524016A (en) | Control system for the pulse width control inverter | |
JPS5644394A (en) | Controller for ac motor | |
JPS56101380A (en) | Method of suppressing harmonic wave of inverter | |
GB1342930A (en) | Pulse width modulation systems | |
JPS5431526A (en) | Current controller for synchronous motor | |
JPS5671479A (en) | Controlling method of variable voltage variable frequency three-phase inverter | |
JPS6460264A (en) | Method and device for controlling voltage type inverter | |
SU1601709A1 (en) | Device for controlling semi-bridge thyristor inverter | |
JPS5442712A (en) | Electric car controlling system | |
JPS57153566A (en) | Gate waveform generating circuit for frequency converter | |
JPS5493955A (en) | Ignition pulse phase control method |