l Able to filter harmonic of 2 to 50 times ;

l Dynamic injection current, without being affected by the system imbalance；

l Fast response, high control accuracy;

l Function of automatic current limiting, no overload

l Three functions:compensation harmonic, compensation reactive power, three-phase unbalanced governance,which is able to operate two or three mode in the meantime.;

l Simple design selection,no need of detailed power analysis, only the size of harmonic current is needed;

l Rack and wall-mounted structure, rack-type standard 19-inch chassis structure

l Parallel installation, easy to install, convenient, easy to expand, can be more than one parallel

It consists of instruction current operation circuit and compensation current generation circuit composed of two main parts. Instruction current operation circuit real-time monitoring of the current line, and the analog current signal into digital signals, into the high-speed digital signal processor (DSP) to deal with the signal, the harmonic and fundamental separation, and pulse width modulation (PWM) signal form to the compensation current generating circuit to send the drive pulse, drive IGBT or IPM power module to generate the same harmonic current amplitude, the opposite polarity of the compensation current into the grid, the harmonic current compensation or offset, take the initiative to eliminate Power harmonics.