NDLI: Optimum DC Bus Voltage Analysis and Calculation Method for Inverters/Motors With Variable DC Bus Voltage

Content Provider	IEEE Xplore Digital Library
Author	Chen-Yen Yu Tamura, J. Lorenz, R.D.
Copyright Year	1972
Abstract	In this paper, an online method to calculate the optimum dc bus voltage for motors and inverters with variable dc bus voltages is proposed. The required dc bus voltage in the low-speed region is much lower than that for the rated-speed region. As a result, the machine drive system efficiency can be improved with lower dc bus voltage since the switching losses in the inverter are reduced. To achieve both desired machine output torque and minimized losses simultaneously, an optimum dc bus voltage is required. However, machine parameter estimation errors and spatial harmonics in the machine result in calculation errors for the required dc bus voltage. A voltage disturbance state filter (VDSF), which is formed by a Luenburger-style closed-loop stator current vector observer with voltage command feedforward, is used to mitigate the calculation errors. Voltage errors caused by the parameter deviations and machine spatial harmonics will inherently be estimated by the observer's state feedback controller. Therefore, the calculation voltage error can be corrected by the VDSF's disturbance voltage so that the optimum dc bus voltage can be obtained.
Sponsorship	IEEE Industry Applications Society
Starting Page	2619
Ending Page	2627
Page Count	9
File Size	3779512
File Format	PDF
ISSN	00939994
Volume Number	49
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Harmonic analysis Inverters DC motors Voltage measurement Power harmonic filters Pulse width modulation Insulated gate bipolar transistors interior permanent-magnet machines Adjustable dc bus voltage flux-intensified interior permanent-magnet synchronous machine (FI-IPMSM)
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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