BG51562A1 - Device for frequency converter control having direct connection - Google Patents
Device for frequency converter control having direct connectionInfo
- Publication number
- BG51562A1 BG51562A1 BG9456491A BG9456491A BG51562A1 BG 51562 A1 BG51562 A1 BG 51562A1 BG 9456491 A BG9456491 A BG 9456491A BG 9456491 A BG9456491 A BG 9456491A BG 51562 A1 BG51562 A1 BG 51562A1
- Authority
- BG
- Bulgaria
- Prior art keywords
- output
- bloc
- channel
- control
- frequency converter
- Prior art date
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The device is used for driving of production mechanisms and machines, requiring smooth speed regulation of the driving induction motor. It changes the direction of motor rotation and allows for a large number of output frequencies at enhanced reliability. The device contains a frequency adjustment channel (1), made of connected in series square pulse generator (2), a logical bloc (3) with an additional direction reversing input, and an initial positioning bloc (4), the outputs of which are connected to the generator (2) and the logical bloc (3). The output of the frequency adjustment channel (1) is connected with one of the inputs of the logic control channel (5), consisting of three identical logic control blocs (6, 7 and 8), each with six electronic keys. The second control logic channel (5) is connected to the output of a voltage adjustment channel (9), formed by connected phase synchronization bloc (10), a phase regulation bloc (11) and a comparison bloc (12), consisting of three comparators. The third input of the control logic channel (5) is connected with the output of segregated control output (13), whose input is connected through current sensors (14, 15 and 16) with the three outputs of the power part of the frequency converter. The output of the control logic channel (5) are connected with the inputs of an output channel (18), which by its output is connected with the control circuit of the power part thyristors (17) of the frequency converter.<IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG9456491A BG51562A1 (en) | 1991-06-04 | 1991-06-04 | Device for frequency converter control having direct connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG9456491A BG51562A1 (en) | 1991-06-04 | 1991-06-04 | Device for frequency converter control having direct connection |
Publications (1)
Publication Number | Publication Date |
---|---|
BG51562A1 true BG51562A1 (en) | 1993-06-15 |
Family
ID=3923796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG9456491A BG51562A1 (en) | 1991-06-04 | 1991-06-04 | Device for frequency converter control having direct connection |
Country Status (1)
Country | Link |
---|---|
BG (1) | BG51562A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA015042B1 (en) * | 2010-04-07 | 2011-04-29 | Открытое Акционерное Общество "Нпо "Русский Электропривод" | System for feeding and control of polyphase ac converter-fed motor |
-
1991
- 1991-06-04 BG BG9456491A patent/BG51562A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA015042B1 (en) * | 2010-04-07 | 2011-04-29 | Открытое Акционерное Общество "Нпо "Русский Электропривод" | System for feeding and control of polyphase ac converter-fed motor |
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