SU400965A1 - DEVICE FOR REGULATING THE SPEED OF DC MOTOR ELECTRIC MOTOR - Google Patents

Description

The invention relates to direct current power, the regulation of which is initiated by the igniter and the exciter circuit, at a given voltage of the power supply circuit. The known device for regulating the speed of the electric 1 D 1 reader of such a constant voltage is connected to the excitation circuit and is controlled by the regulator with the regulator: the field current and the root current. When changing the parameters of the engine - the flow of excitement and rotational dewlap- tion - in istvst: a dysfunction, the static "gain factor" is connected, which connects the speed of rotation with the TOKOIM core and the current of the car with the excitation current d / vigatel, i.e. the control system is essentially not, 1 | INNER 1, 1, 1, or, of course, the indicated ones can be configured in any given static and dynamic characteristics (static precision and speed) for only one value of flow and speed. For all the other values of these parameters, the system setting is different from the specified one. The lack of compensation for the effect of nonlinearities in such a device reduces its accuracy and speed. The proposed arrangement (IST) of the VO two-way precision accuracy and .accuracy due to the linearization of the system managed. Linearization is carried out by automatically correcting the parameters of the regulating part of the system in accordance with changes in the drive parameters, for which the device contains a multiplication link and a division link connected to one of its inputs, respectively, with the speed controller and the current regulator core, the outputs with the controller the current of the car and the regulator of the excitation current, and the second inputs with the speed sensor. The drawing shows the pryimtialno scheme of the device. The armature / motor is connected to a direct current source, the voltage of which varies only during the acceleration of the motor to the nominal speed. The excitation winding 2 of the electric motor is powered from the propulsion: extra-internal valve converter 3 with the 4 I1Mpulon-phase 1 control system. The device is made according to the noaHiiinen.Horo principle of regulation with field current regulators 5, current core 6 n speed 7. The regulators are connected in series so that the task of the field current is developed by the current current controller cor, and the current task is corrected by the speed regulator. Since all the regulators are proportional-intercalary, there is a static error when, from, the variable AND the naipaMerpioiB drive.

At the input of the system, the setpoint adjuster 8 is switched on, which allows you to regulate the wake- ning and deceleration of electrpDVIGGEL in the heatsink mode in the hot zone (flow blues. The multiplication link 9 and the link 10 are one of the outputs that match the corresponding jump patterns. the 6 TOiKa controller is notor, and the outlets - with the current regulator and the regulator 5 of the excitation current, and the second outputs - with the speed sensor 11.

Signals proportional to the currents are taken from the cor 12 current and excitation current sensors 13.

Thus, in the circuit for compensating for changes in the excitation flow, it was removed by multiplying the output voltage of the speed regulator by the signal

J f

p E

pde E - e. d. engine; Ф - flow has revived; n is the rotational speed of the water. In the open area, when controlling the speed by changing the flow, the emf value is the engine is equal to the frequency and the width of Yatsoi, the multiplication is made on the pa signal, proportional to the speed, s

using multiply, and vedichppu - by the second

d t in the form of a constant coefficient.

In the current circuit, the compensation of acorost is compensated and is made by making the output voltage of the current regulator 6, core, to a signal proportional to the speed p, using a dividing link.

The engine is started in two stages.

From the beginning with the plateau they increase the paprice on the crust of the woods. In this case, the key at the input of the sensor S is inoperative.

At the end of acceleration to the nominal speed, the key closes and a sipnal proportional to the speed setpoint is applied to the speed regulator's input, at a rate determined by the intensity controller.

The steady-state regime begins after the development of a given speed value rotated. .

Subject invention

An apparatus for regulating the speed of a permanent motor by an action on an excitation circuit made according to

the principle of under-regulation with regulators of excitation current, core current and speed, characterized in that, in order to increase accuracy and speed, it contains a link of the division and the division link connected by one of their own, x inputs respectively with the speed regulator and the current regulator is the core, and the outputs are with the current regulator, the core and the field current regulator, and the second inputs are with speed sensors.