Power Quality Control Of ICPT System

Inductively coupled power transfer(ICPT) technology, As an energy transmission technology, Based on the principle of electromagnetic induction, utilization of modern power electronics, magenetic coupling technology, high-frequency power conversion technology and modern control theory,etc. In recent years, domestic and foreign research teams and business ICPT technology research and application development more in-depth, however,the current study focused on ICPT system in power conversion and compensation,coupling mechanism design, the main circuit control strategy, and the output voltage resonant circuit topology,etc. However, power electronic technology bring convenience to people’s life at the same time, it led to new problems, it generates a lot of harmonic current, causing serious harmonic pollution to the grid. With the implementation of green grid, power quality requirements are high,harmonic pollution grid has been more and more attention, harmonic supprenssion technology has become a hot topic,but in harmonic suppression system ICPT technology research is still relatively small.This paper focuses on the harmonic system of governance ICPT common topology research.At first, the paper introduce the current condition of ICPT system and power quality control correction technology home and abroad, the subject purpose and main contents. This paper introduces the basic components and the system works of ICPT system, in order to analysis the harmonic of ICPT system detailed,based on the definition of harmonics,an ICPT system simulation model was built in MATLAB/SIMULINK simulation platform, then harmonic system were measured and analyzed in detail.Research focus of this paper is on the rectifier-inverter type ICPT system harmonic suppression technology research. Through the analysis of active power filter and passive filter, put in ICPT system uses active filtering scheme, presented in ICPT system uses active filtering scheme. Then analyze the basic composition and control principle of active filter,combined ouput voltage adjustable requirements of ICPT system, based on improved Buck-Boost structure,proposed an new APF in ICPT system, according the circuit topology analysis and design,and a detailed study of the Foutier transform,the instantaneous reactive power theory based on harmonic detection and control of hysteresis current tracking control approach. At last, using MATLAB/SIMULINK simulation model established by simulation results validate the proposed harmonic suppression program correctness theory.