Thus,the harmonic reducing gear box and quick design of products are developed.

The Harmonic Interference and Its control in CNC Lathes;

Application of DSP in the Electric Power Harmonic Analysis;

Dynamic Reactive Compensation and Harmonic Filter System for SVC;

Analysis and harness of harmonic wave of silicon rectification units;

Wiring method of rectifying station and harmonic wave abatement;

A study on the design method of suppression of harmonic wave;

Study on the harmonics situation of non-linear load customer (small steel factory);

Harmonics in the Main Circuit of a Controllable Saturated Reactor;

Simulation and analysis of AC side current harmonics of SRM system;

It is difficult that analysis of harmonic waves of the magnetic motive force of non-normal winding is carried out.

Through the harmonic waves test and data analysis of 110 kV/35 kV Positive and vice-generatrix,110 kv first and second generatrixs,main transformers and offtracks in these substations,the measurement and computation methods are presented.

To process sampling data with a recursion sum algorithm decreases the interference of harmonic waves in DC signal measurement.

Research on causes of harmonic current magnification and its restraining measures for reactive power compensation device with shunt capacitors in low voltage distribution network;

It is introduced that harmonic current in the electric network and harmonic current detecting method based on instantaneous reactive power theory in the paper,and then it presents the current detecting method in the anisomerous mains voltage,aberrance circuit based on instantaneous reactive power theory.

A novel detective principle and method for currents of power network are developed, in which the distortion of the voltage and the phase angle of fundamental voltage are considered and the fundamental active, reactive current and any term harmonic current can be effectively detected only by measuring single phase voltage and current.