SU125602A1 - Device for controlling the speed of an asynchronous motor with a phase rotor - Google Patents

Device for controlling the speed of an asynchronous motor with a phase rotor

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Publication number
SU125602A1
SU125602A1 SU629495A SU629495A SU125602A1 SU 125602 A1 SU125602 A1 SU 125602A1 SU 629495 A SU629495 A SU 629495A SU 629495 A SU629495 A SU 629495A SU 125602 A1 SU125602 A1 SU 125602A1
Authority
SU
USSR - Soviet Union
Prior art keywords
speed
controlling
asynchronous motor
phase rotor
rotor
Prior art date
Application number
SU629495A
Other languages
Russian (ru)
Inventor
И.Ю. Розенцвеиг
Original Assignee
И.Ю. Розенцвеиг
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 И.Ю. Розенцвеиг filed Critical И.Ю. Розенцвеиг
Priority to SU629495A priority Critical patent/SU125602A1/en
Application granted granted Critical
Publication of SU125602A1 publication Critical patent/SU125602A1/en

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Description

Как известно, применение в устройствах дл  регулировани  скорости асинхронных электродвигателей с фазным ротором обратной св зи по скорости позвол ет получать жесткие механические характеристики при всех скорост х двигател . Дл  введени  этой св зи обычно используетс  тахогенератор, устанавливаемый на одном валу с двигателем.As is well known, the use in speed control devices of asynchronous motors with a phase-rotor feedback speed allows to obtain rigid mechanical characteristics at all motor speeds. A tachogenerator mounted on the same shaft as the motor is usually used to introduce this connection.

Предлагаемое устройство позвол ет упростить схему регулировани  и повысить ее надежность путем замены дополнительной вращающейс  мащины статическим устройством, в котором дл  получени  сигнала обратной св зи по скорости применен дроссель насыщени , имеющий пр моугольную петлю гистерезиса и включенный последовательно с сопротивлением на линейное напр жение цепи ротора.The proposed device makes it possible to simplify the control circuit and increase its reliability by replacing an additional rotating mask with a static device, in which a throttle of saturation, having a rectangular hysteresis loop and connected in series with the resistance to the linear voltage of the rotor circuit, is used to obtain a speed feedback signal.

На чертеже представлена принципиальна  электрическа  схема предлагаемого устройства дл  регулировани  скорости асинхронного двигател .The drawing shows the circuit diagram of the device for controlling the speed of an induction motor.

Асинхронный двигатель / включен в сеть через рабочие обмотки трехфазного магнитного усилител  2, посредством которого осуществл етс  управление скоростью двигател . Усилитель 2 имеет три обмотки управлени : управл ющую 3, смещени  4 и обратной св зи 5.The induction motor / is connected to the network through the working windings of a three-phase magnetic amplifier 2, by means of which the speed of the engine is controlled. The amplifier 2 has three control windings: control 3, bias 4 and feedback 5.

Входным сигналом цепи обратной св зи  вл етс  падение .напр жени  на сопротивлении в цепи ротора двигател . Этот сигнал, пропорциональный току ротора, подаетс  на цепочку из последовательно соединенных активного сопротивлени  6 и дроссел  насыщени  7, выполненного из материала с пр моугольной петлей гистерезиса.The input to the feedback circuit is a drop in voltage across the resistance in the rotor circuit of the engine. This signal, proportional to the rotor current, is applied to a chain of resistance resistance 6 and saturation 7 throttle 7, made of a material with a rectangular hysteresis loop.

Напр жение на дросселе 7 выпр мл етс  выпр мителем 8 и через сопротивление 9 нагрузки дроссел  подаетс  в обмотку обратной св зи 5 усилител  2. Ток в обмотке обратной св зи 5 состоит из посто нной сосгавл ющей , которую легко скомпенсировать, например, соответствующим изменением тока в обмотке смещени  4 усилител , и переменной составл ющей , пропорциональной cKopociH двигател , что как раз и гробуетс  дл  обратной св зи по скорости.The voltage on the choke 7 is rectified by the rectifier 8 and through the resistance 9 of the load the throttle is fed to the feedback winding 5 of the amplifier 2. The current in the feedback winding 5 consists of a constant coagulator, which is easily compensated, for example, by a corresponding change in current in the bias winding 4 amplifiers, and a variable component proportional to c KopociH of the motor, which is exactly what is expected for speed feedback.

Предмет изобретени Subject invention

Устройство дл  регзлировани  скорости асинхронного электродвигател  с фазным ротором, содержащее цепь обратной св зи по скорости, отл и ч а ю щ е е с   тем, что, с целью упрощени  схемы и -повыщени  надежности , дл  получени  сигнала обратной св зи по скорости применен дроссель насыщени , имеющий пр моугольную петлю гистерезиса и включенный последовательно с сопротивлением на линейное напр жение дени ротора.A device for regsilirovaniya asynchronous motor with a phase-rotor, containing a speed feedback circuit, which is so that, in order to simplify the scheme and to increase reliability, a choke is used to obtain a speed feedback signal saturation, having a rectangular hysteresis loop and connected in series with the resistance to the linear voltage of the rotor day.

SU629495A 1959-05-29 1959-05-29 Device for controlling the speed of an asynchronous motor with a phase rotor SU125602A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU629495A SU125602A1 (en) 1959-05-29 1959-05-29 Device for controlling the speed of an asynchronous motor with a phase rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU629495A SU125602A1 (en) 1959-05-29 1959-05-29 Device for controlling the speed of an asynchronous motor with a phase rotor

Publications (1)

Publication Number Publication Date
SU125602A1 true SU125602A1 (en) 1959-11-30

Family

ID=48396943

Family Applications (1)

Application Number Title Priority Date Filing Date
SU629495A SU125602A1 (en) 1959-05-29 1959-05-29 Device for controlling the speed of an asynchronous motor with a phase rotor

Country Status (1)

Country Link
SU (1) SU125602A1 (en)

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