Title :
Neutral point control for multi-level inverters: theory, design and operational limitations
Author :
Newton, C. ; Sumner, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Nottingham Univ., UK
Abstract :
This paper describes the theory, design, and operation of a neutral point voltage control system for a three level inverter drive system. The paper specifically addresses: (1) the mathematical derivation of the neutral point control principle described, defining the operating limits imposed; (2) design of a closed loop control system; (3) and modifications to the control system to enable operation throughout the full range of the drive. Experimental results are provided, and control for a five level inverter is also discussed
Keywords :
DC-AC power convertors; closed loop systems; control system analysis; control system synthesis; invertors; voltage control; closed loop control; control design; control simulation; five-level inverter; multi-level inverters; neutral point voltage control system; operating limits; Acceleration; Capacitors; Control systems; Design engineering; Drives; Europe; Insulated gate bipolar transistors; Inverters; Support vector machines; Voltage control;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.629031
