Design Method of Active Power Filter active filter design methods, generally can be attributed to two categories cascade method and simulation. Cascade method according to the technical requirements, determine the transfer function may be physically implemented (usually be readily active filter materials and manuals Richard), and breaking it down into low-level functions (mostly second-order function) of the product , these low-level functions are identified by active circuitry then cascaded to achieve the original transfer function. Low order function circuit section known as the basic harmonic treatment method, there are many typical second-order basic circuit section for designers to use. The number to use at basic amplifier section can be divided into single amplifier circuit, bi-amp circuit, an amplifier circuit three or four amplifier circuits. Cascade method design process is relatively simple harmonic control, easy to adjust circuit characteristics, circuit implemented more economical, is a commonly used method. Simulation can be designed to meet the technical requirements of the LC filter as a prototype, and then to simulate an active circuit to achieve. This method can be divided into element simulation and functional simulation two wind power harmonic control, and more to double-end terminating resistor LC ladder filter prototype. Typically, the analog method required more elements than the cascade method. Active Power Filter technical parameters 1. Rated working voltage: 380V / 220V, 50Hz2 rated harmonic compensation capacity:. 50A / 100A / 150A / 200A3 machine power consumption: less than 3% of the capacity of 4 harmonic suppression effect: reached the national standard, steady THD can be reduced to below 5% 5. Rated insulation voltage: 3000V AC, 2500V DC wind power harmonic control, harmonic control, provided by the 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!