Reactive Power Compensation Reactive Power Type Controller

The controller of reactive power (reactive current) type has effectively solved the shortcomings of power factor type. A well-designed reactive power controller is intelligent, has strong adaptability, can balance the stability of the circuit and the detection and compensation effects, and can provide comprehensive protection and detection for the compensation device. Such controllers generally have the following functions:
*Four quadrant operation, automatic and manual switching, self identification of power of each capacitor bank, automatic adjustment of switching time according to load, harmonic overvoltage alarm and protection, line resonance alarm, overvoltage protection, line low current alarm, voltage and current distortion rate measurement, display of capacitor power, display of cos Φ, U, I, S, P, Q and frequency.
From the above functions, it can be seen that its control function is complete. As it is a reactive power controller, the effect of the compensation device is fully utilized. If the line is under heavy load, even if cos Φ has reached 0.99 (hysteresis), as long as another set of capacitors is added without overcompensation, another set of capacitors will still be added to achieve the best compensation effect. The controller using DSP chip significantly improves the computing speed, enabling the implementation of Fourier transform. Of course, not all reactive power controllers have such comprehensive functions. There is still a certain gap between domestic products and foreign products.