school of information and electrical engineering;
china university of mining & technology;
xuzhou 221008;
china;
school of electrical and information engineering;
heilongjiang institute of science and tech;
school of information and electrical engineering;
china university of mining & technology;
xuzhou 221008;
china;
school of electrical and information engineering;
heilongjiang institute of science and technology;
harbin 150027;
china;
active power filter; digital signal processing; modeling; compensation error;