Theory and Implementation of a Simple Digital Control Strategy for Brushless DC Generators

Permanent magnet drives have frequently been used as a generator for a variety of applications. This is mainly due to their high-power density, reliability, robustness, and wide speed range. However, these systems often use expensive position sensors as well as complex controllers with high computat...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2011-11, Vol.26 (11), p.3345-3356
Main Authors: Milivojevic, N., Krishnamurthy, M., Emadi, A., Stamenkovic, I.
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
BLDC generator
Circuit properties
Control systems
Digital circuits
Digital control
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical machines
Electronic circuits
Electronics
Exact sciences and technology
FPGA
Fuzzy logic
General equipment and techniques
Generators
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
low-cost control
Miscellaneous
Physics
Reactive power
Regulation and control
Renewable energy resources
Sensors
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
Topology
Various equipment and components
Voltage control
Wind turbines
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Summary:Permanent magnet drives have frequently been used as a generator for a variety of applications. This is mainly due to their high-power density, reliability, robustness, and wide speed range. However, these systems often use expensive position sensors as well as complex controllers with high computational and memory capacity in order to control the drive at desired performance and operating range. This paper presents the concept of a simple digital control strategy for brushless dc generators. This technique is easy to implement and can be used for variety of applications including renewable energy systems, automotive systems, and flywheels. The control strategy shows satisfying performance, reliability, and robustness for both speed and voltage regulation, which are frequently used for industrial generator applications. Fundamental principles of the control technique have been presented with detailed simulation results. This scheme has been implemented and tested on a laboratory prototype generator to demonstrate feasibility and experimentally verify performance under various operating conditions.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2011.2135378