SU635584A1 - Device for limiting current in subordinate control system of electric drive - Google Patents
Device for limiting current in subordinate control system of electric driveInfo
- Publication number
- SU635584A1 SU635584A1 SU762422518A SU2422518A SU635584A1 SU 635584 A1 SU635584 A1 SU 635584A1 SU 762422518 A SU762422518 A SU 762422518A SU 2422518 A SU2422518 A SU 2422518A SU 635584 A1 SU635584 A1 SU 635584A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- control system
- current
- electric drive
- limiting current
- subordinate control
- Prior art date
Links
Description
На выходе блока воазедени в .квадрат 8 сигнал пропорднонален квадрату roiKa акор двигател со знаком, соответствующим зна1ку тока, а на выходе блока дифференцировани 9 сигнал пропорД|Ионален произведению абсолютной тока и его производной.At the output of the unit into the square 8, the signal is propordary to the square roiKa motor acor with a sign corresponding to the current sign, and at the output of the differentiation unit 9 the signal is proportional to the product of the absolute current and its derivative.
В -статическом режиме, то,к ;кор -не измен етс , а также при малых его значени х , значительно м-еньших допустимого, и малой Скорости его изменени вых-одкой сигнал блока дифферепцирован-и 9 практически равен нулю, сигнал обратной св зи оиредел етс только выходом датчи:ка тока 7, и устройство работает каа обычна система иодчиненного регулировани с ограничением тока, определ емым блоком ограничени 2 в цепа обратной св зи регул тора Скорости /.In the -static mode, then, k; the core does not change, and also at its small values, much smaller than the allowable, and its low rate of change, the output signal is differentiated by the output unit — and the signal is almost zero; The sensor is detected only by the output of the sensor: current 7, and the device operates as a conventional idle control system with a current limit defined by the limit unit 2 in the feedback loop of the Speed controller /.
Если величина тока или -скорость его изменени увеличиваютс , увеличиваетс вь ходной сигнал -бложа Дифферен:цировак:и , причем тем (больше, чем блинке абсолютное значение тока ,к гранично-му. Этот сигнал поступает иа вход регул тора тока 5, складываЯСЬ с сигналом, поступающим с выхода датчика тока 7, усилива тем самым отрицательную обратную св зь и увеличива эффективность ограничени тока, снижа его максимальные значени -во врем переходного процесса :в пуско-тормозных режимах и пои уведич-ении нагрузки.If the magnitude of the current or the rate of its change increases, the input signal increases —given Diffren: cycrovac: and, moreover, the absolute value of the current to the limit value is greater than the blinker. This signal goes to the input of current regulator 5, adding signal coming from the output of the current sensor 7, thereby increasing the negative feedback and increasing the effectiveness of current limiting, reducing its maximum value during the transition process: in the starting-braking modes and increasing the load.
того, есл;И в -системе -возникают 1кол-ебани тока, дополнительный сигнал о бр-атной св зи с выхода блока. диффер1ен-цировани 9, возрастающий с увеличением амплитуды и частоты колебаний, а та-кже абсолютного значени тока, способствует эффективному гашению этих колебаний. In addition, in the system, 1kol-fucking of current is generated, an additional signal about the short-circuit connection from the output of the unit. differentiation 9, which increases with increasing amplitude and frequency of oscillations, and also the absolute value of the current, contributes to the effective damping of these oscillations.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762422518A SU635584A1 (en) | 1976-11-24 | 1976-11-24 | Device for limiting current in subordinate control system of electric drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762422518A SU635584A1 (en) | 1976-11-24 | 1976-11-24 | Device for limiting current in subordinate control system of electric drive |
Publications (1)
Publication Number | Publication Date |
---|---|
SU635584A1 true SU635584A1 (en) | 1978-11-30 |
Family
ID=20683755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762422518A SU635584A1 (en) | 1976-11-24 | 1976-11-24 | Device for limiting current in subordinate control system of electric drive |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU635584A1 (en) |
-
1976
- 1976-11-24 SU SU762422518A patent/SU635584A1/en active
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