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Low Switch Count Nine-Level Inverter Topology for Open-End Induction Motor Drives
- Source :
- IndraStra Global.
- Publication Year :
- 2017
- Publisher :
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA, 2017.
-
Abstract
- This paper presents a nine-level inverter topology for an open-end induction motor drive requiring only eight switches per phase, using two three-level inverters with two isolated dc links in a 3:1 ratio. A space-vector-based formulation is used to determine pole voltages such that both inverters supply power to the load over the full modulation range, eliminating the possibility of dc bus overcharging. Proper selection of switching states ensures that all floating capacitor voltages are kept tightly balanced. A digital state machine is used to select sequences of switching states in order to eliminate deadtime-induced pole voltage transients, further improving the output-voltage quality. A level-shifted carrier-based pulse width modulation scheme is used. The steady-state and transient performance of this topology were verified and the experimental results are included.
- Subjects :
- Engineering
business.industry
020209 energy
020208 electrical & electronic engineering
Topology (electrical circuits)
02 engineering and technology
DC-BUS
Power (physics)
law.invention
Capacitor
Electrical Communication Engineering
Control and Systems Engineering
Control theory
law
0202 electrical engineering, electronic engineering, information engineering
Transient (oscillation)
Electrical and Electronic Engineering
business
Pulse-width modulation
Induction motor
Voltage
Subjects
Details
- Language :
- English
- ISSN :
- 23813652
- Database :
- OpenAIRE
- Journal :
- IndraStra Global
- Accession number :
- edsair.doi.dedup.....e4f265705d3e5e93ea0482e47ca69026