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STATCOM (also known as SVG in China) is the main equipment of Flexible AC Transmission System (FACTS), the third dynamic reactive compensation equipment after capacitor compensation, magnetic control reactor MCR SVC and TCR SVC. When STATCOM is connected in the grid in parallel , it is equal to the reactive power source which the reactive current is flexibly controlled and compensates the reactive power. In one hand, it solves the problems of capacitor in parallel with harmonic interference switch. In other hand, it can suppress or manage harmonics according to customers’ requirements to improve power quality. STATCOM owns good features in stabilizing voltage, decreasing system loss and harmonics, etc.

STATCOM is cored with voltage sourced converter (VSC), which the output voltage is connected with the system by reactor or transformer. It absorbs or sends the reactive power by adjusting the AC output voltage’s amplitude and phase to realize the target of dynamic adjustment. As sourced compensation equipments, it not only tracks the impact current of compensated load, but also tracks the harmonic current.
Based on the strong technology and talents advantage, PONOVO launches different structure STATCOM to satisfy the customers. Accu-Var ASVC-100 type SVG is the chain-style level structure with low loss and quick response features. The DSP and FPGA help realize quick adjustment calculation and multi-chain extension configuration. Now, the technology is being widely used in wind power plant, metallurgy and electrified railway, etc. It is used in middle voltage 3kV~35kV system.