Title :
The control of arm currents and the parameters for modular multilevel converters
Author :
Yujin Zhang ; Qiongxuan Ge ; Ruihua Zhang ; Yumei Du
Author_Institution :
Key Lab. of Power Electron. & Electr. Drive, Inst. of Electr. Eng., Beijing, China
Abstract :
This paper describes the operation of modular multilevel converter (MMC). A control method of adding the feed-forward current is introduced. Another strategy of removing the second harmonic current is also described in order to improve the arm currents. Simulation results based on a detailed PSIM model prove the effectiveness of the two methods. The paper presents principle of parameters selection of MMC especially the arm inductance.
Keywords :
electric current control; feedforward; power convertors; MMC; PSIM model; arm current control; feed-forward current control; modular multilevel converters; parameter selection; second harmonic current; Capacitors; Electrical engineering; Harmonic analysis; Inductance; Laboratories; Power electronics; Simulation; Modular multilevel converter (MMC); arm inductance; circulating current; control strategies of arm current;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
