Title :
A hybrid AC-DC-AC matrix converter with a boost circuit
Author :
Song, Peilin ; Lin, Jingxue
Author_Institution :
Hetao Univ., Linhe, Mongolia
Abstract :
A new type of AC-DC-AC boost MC (boost matrix converter) based on boost circuit is presented, by connecting a boost circuit operating in the state of high frequency to the middle direct current link of AC-DC-AC matrix converter. The voltage transfer ratio of matrix converter is increased through utilizing the voltage increase function of boost circuit. In this paper, the mathematic model of boost MC is deduced, and discontinuous conduction mode (DCM) of boost circuit is discussed. This new topology is analyzed, and the control strategies of rectifier stage, inverter stage and middle boost circuit are studied. Simulation confirms the validity and effectiveness. The results indicate that the voltage transfer ratio can be higher than 1.0, the output voltage waveform is very close to standard sine wave, and the harmonic contents increase slightly, which is mainly composed of high harmonics around of switching frequency.
Keywords :
AC-DC power convertors; DC-AC power convertors; harmonic analysis; matrix algebra; boost circuit; boost matrix converter; discontinuous conduction mode; hybrid AC-DC-AC matrix converter; inverter; mathematical model; output voltage waveform; rectifier; standard sine wave; switching frequency; voltage transfer ratio; Circuit simulation; Circuit topology; Frequency conversion; Inverters; Joining processes; Mathematical model; Mathematics; Matrix converters; Rectifiers; Voltage; Boost circuit; Control strategy; Harmonic content; Matrix converter; voltage transfer ratio;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274540
