1. Unified control: The active filtering unit directly controls the switching of traditional filtering compensation units to avoid capacity offset between the two; Multiple combination methods: For different working conditions, active filters can be combined with co compensating capacitors, sub compensating capacitors, and intelligent capacitors; Low self loss: Compared to pure power electronic solutions, most of the capacity is replaced by traditional filtering compensation products. As the self loss of traditional products is much lower than that of IGBT switches, the proportion of active filtering capacity is small, and the overall loss of the device is low.

2. High cost-effectiveness: Fully utilizing the economic benefits of traditional filtering compensation products, traditional filtering compensation units focus on coarse adjustment of basic reactive power while absorbing some harmonics, while active filtering units focus on fine compensation for rapidly changing reactive power demand and harmonic current. At the same time, active filtering units can utilize the reactive power bidirectional adjustment function to effectively manage reactive power backflow, Make up for the inherent shortcomings of traditional filtering compensation devices.

3. High reliability:Power quality monitoringdeviceHas fault-tolerant operation function, that is, when a certain active filtering unit or traditional filtering compensation unit fails and exits, the control system automatically shields the faulty unit to ensure the normal operation of other normal units; When the active filtering unit shuts down due to transient faults, the traditional filtering compensation unit can still operate independently.