The basic principle of the active filter power filter, is the use of new power harmonic control equipment of modern power electronics and high-speed DSP devices are based on digital signal processing technology made. It is composed of two major parts of the circuit generated by the command current computing circuit and compensation current. Command current computing circuit current in the line real-time monitoring, and analog current signals into digital signals into high-speed digital signal processor (DSP) for signal processing, the harmonics of the fundamental separation and pulse width modulation ( PWM) signal in the form of compensation current circuit occurs to send drive pulses to drive IGBT or IPM power modules, generates harmonic currents equal in magnitude but opposite polarities to compensate the harmonic current injection control of the manufacturers, to compensate the harmonic current or offset initiative to eliminate power harmonics. High pressure H.APF active power filter and reactive compensation devices integrated technical features: a dynamic harmonic filter function, but also dynamic compensation of inductive loads or capacitive reactive power, set three functions in a harmonic control technology , a reasonable set of field capacity distribution ratio based on the actual load conditions. Single set H.APF ++ can be simultaneously filtered twice to 25 times harmonic (harmonic characteristics can also choose to filter out system) to overcome the shortcomings of traditional passive LC filter requires multiple sets of single-tuned filter branch consisting of filtering effect can reach more than 90%. With the removal of the compensation capacitor, to prevent the emergence since the capacitor capacitance may attenuate or system impedance change in series and parallel resonant. High voltage electricity H.APF ++ integrated active filter and reactive compensation devices capable of continuous work in any working conditions. l have a continuous smooth adjustment harmonic control, two-way reactive power compensation function. Condition harmonic governance role for the system presents capacitive reactive power, showing up the capacitive reactive overpower conditions, as well as presenting capacitive reactive, inductive reactive repeated changes of conditions, H.APF ++ can fully play its bi compensation function enables system power factor has stabilized at +0.99 or more. l real-time tracking rapid response, response time ≤10ms. l H.APF ++ output of reactive power compensation is pure sine wave, the device itself does not produce harmonics. l with large-screen, high-definition, Chinese menu display color touch screen interface. Real-time display of system voltage, current, harmonics, power factor and other electrical parameters, real-time display device operating parameters and historical events records, and 485 can communicate with the host computer. l H.APF ++ can be more than one parallel. Can also be used in combination with the SVC actual field conditions passive compensation filter apparatus, increase the capacity and cost-effective means. l H.APF ++ device operating power consumption is half of the same capacity TCR type of SVC. Harmonic manufacturers | Harmonic | By Henan Xi Xi Connaught Electrical and Mechanical and Electrical Equipment Co. Connaught. Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) strong, credible, in Zhengzhou, Henan electronics, electrical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Connaught Electrical and Mechanical study into the brilliant and you work for a better future!