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Soft Start and Voltage Control of Induction Motors Using Floating Capacitor H-Bridge Converters
- Source :
- IEEE Transactions on Industry Applications. 52:3115-3123
- Publication Year :
- 2016
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2016.
-
Abstract
- An application of H-bridges that enable soft start and power factor correction of cage induction machines is presented. The proposed power electronics employs floating capacitor H-bridges connected in series with utility grid and a cage induction motor to provide series voltage compensation. Injecting a series voltage in each phase, the proposed system can be used to control the motor voltage during starting and hence limit the motor starting current. In addition, an algorithm is proposed to accurately predict the worst case scenario for bridge dc capacitor voltage before motor starting. Thus, a dc capacitor overvoltage problem can be avoided. Experimental results show that the proposed system can successfully soft start a standard squirrel cage induction machine under different modes and load conditions. A simple representation of the worst case scenario for dc capacitor voltage before motor starting is established.
- Subjects :
- Universal motor
Engineering
business.industry
020209 energy
020208 electrical & electronic engineering
Electrical engineering
02 engineering and technology
Decoupling capacitor
AC motor
Industrial and Manufacturing Engineering
Voltage compensation
Control and Systems Engineering
Pre-charge
0202 electrical engineering, electronic engineering, information engineering
Voltage regulation
Electrical and Electronic Engineering
business
Motor capacitor
Induction motor
Subjects
Details
- ISSN :
- 19399367 and 00939994
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Industry Applications
- Accession number :
- edsair.doi...........c229921740dbcca528a1057f7b226e69