National standard: Static reactive power compensation tracking time is more than 5S reactive power compensation, dynamic reactive power compensation refers to reactive power compensation within 5S tracking time. Dynamic reactive power compensation refers to the reactive power compensation within 5s of the tailing time, and compensates according to the dynamic change of the reactive power in the power grid. It can compensate for any load condition in real time, and it has stable grid voltage function, can travel the quality of the grid, no contact, zero current switching skill increases the life of the capacitor, and the equipment is used first. To compensate for the repetitive reactive power in the power grid, suppress the harmonics of the grid flicker, the power factor of the traveling grid, improve the power supply quality and power consumption of the distribution network, thereby reducing the network loss and extending the application line of the transmission line. Putting into mass production can bring greater social benefits. Dynamic reactive power compensation usually has phase separation compensation, which together also makes dynamic reactive power compensation have the function of processing harmonics.
Static reactive power compensation refers to reactive power compensation above 5s. It is compared with dynamic reactive power compensation. Although the cost is low, the static compensator can be dispatched quickly and smoothly during voltage change to satisfy the dynamic reactive power. The demand for compensation has strong adaptability to the three-phase unbalanced load and the impact load, but the switching speed is relatively slow, and it is not suitable for the occasion where the load is changed repeatedly, and the over-compensation may be over-compensated, and the grid voltage is not determined. Compared with the simple use of the consumer's electrical equipment; static reactive power compensation is usually compensated for three phases together, and the life of the contact switching device is much shorter than the dynamic reactive power compensation, the noise generated during the operation is large, and In the later maintenance process, the workload is relatively large, which will affect the life of the capacitor, and the capacitor comparison is simply damaged.
Therefore, in contrast, dynamic reactive power compensation equipment is still the primary equipment in modern flexible traffic transmission systems, and its reactive current output can be stabilized within a wide range of voltage changes, which is the first choice for consumers.