Reactive Power Compensation - Controller

The choice of compensation method also depends on the condition of the power grid. Firstly, it is necessary to have an understanding of the compensated lines. For working conditions with large and rapidly changing loads, dynamic compensation is used for the lines of welding machines and motors, which has a significant energy-saving effect. For lines with relatively stable loads, static compensation methods should be used, and dynamic compensation devices can also be used. Generally, the working time of electric welding is over a few seconds, and the starting time of the motor is also over a few seconds. However, the response time of dynamic compensation is in the tens of milliseconds. Considering 40 milliseconds, it is a relatively stable process from 40 milliseconds to 5 seconds, and the dynamic compensation device can complete this process.