CC-TDOB11 51308373-175 Brushless Direct Current (DC) Motor

CC-TDOB11 51308373-175

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CC-TDOB11 51308373-175 Brushless Direct Current (DC) Motor

CC-TDOB11 51308373-175 consists of three parts: the drive control part, the feedback part and the drive object. The drive control part is the core of the whole speed control system, which is generally called frequency control controller. The feedback part is to feed back the relevant quantities of the driving object, such as speed and current, to the control part to achieve closed-loop control. The main part of the driving object is the motor, including stepping motor, brushless DC motor, etc. The schematic diagram of the structure of the frequency conversion speed control system is shown in Figure 1, if the requirements for control accuracy are not very high. Due to the specific drive object in the system is different, the feedback part in the application design is not the same, not to discuss in detail here, here mainly discusses the frequency conversion speed control system in the core part that is the drive control part.

CC-TDOB11 51308373-175 the applied voltage is unchanged, then the magnetic flux φ changes with the frequency, such as the frequency f decreases, the magnetic flux φ will increase, resulting in the saturation of the magnetic circuit, the increase in the excitation current, the power factor decreases, and the core and the coil are overheated, which is obviously not allowed. For this reason, it is necessary to reduce the frequency while also reducing the voltage, which requires coordinated control of frequency and voltage. In addition, on many occasions, in order to keep the maximum torque produced by the motor unchanged during speed regulation, it is also necessary to maintain a constant magnetic flux, which is also achieved by coordinated frequency and voltage control. By changing the power supply frequency of the asynchronous motor, the motor speed can be adjusted arbitrarily to achieve smooth stepless speed regulation.

CC-TDOB11 51308373-175 Advantages:
(1) Good smoothness and high efficiency in speed regulation;
(2) Large speed regulation range and high precision;
(3) Low starting current, no impact on the system and power grid, obvious power saving effect;
(4) Easy to realise process automation.