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DC Bus Voltage Control for Renewable Energy Distributed Power Systems

Karlsson, Per LU and Svensson, Jörgen LU (2002) IASTED-PES 2002 Conference In Proceeding Power and Energy Systems - 2002 p.333-338
Abstract
his paper addresses voltage control of distributed DC power systems. Especially the dynamic properties of load source interactions are highlighted. They are interesting since the sources are considered weak for a distributed power system. This is illustrated with simulations where the power is fed from wind turbines only, and still constant power loads are controlled at the same time as the DC bus voltage level. The wind power generators are modeled as permanent magnet synchronous machines. The controller needed for the machines, including position estimation and field weakening, is discussed. To control the DC bus voltage, more power than consumed by the loads must be supplied to the wind turbines and the excess power removed by pitch... (More)
his paper addresses voltage control of distributed DC power systems. Especially the dynamic properties of load source interactions are highlighted. They are interesting since the sources are considered weak for a distributed power system. This is illustrated with simulations where the power is fed from wind turbines only, and still constant power loads are controlled at the same time as the DC bus voltage level. The wind power generators are modeled as permanent magnet synchronous machines. The controller needed for the machines, including position estimation and field weakening, is discussed. To control the DC bus voltage, more power than consumed by the loads must be supplied to the wind turbines and the excess power removed by pitch angle control. Pitch angle control is a comparably slow process and therefore the DC bus voltage controller must handle the transient power distribution. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
DC distribution system, distributed generation, droop control, wind energy
in
Proceeding Power and Energy Systems - 2002
pages
333 - 338
conference name
IASTED-PES 2002 Conference
language
English
LU publication?
yes
id
6359bf17-c9d3-4d61-8917-9860043caf36 (old id 698392)
alternative location
http://www.actapress.com/PaperInfo.aspx?PaperID=26532&reason=500
date added to LUP
2007-12-05 14:23:31
date last changed
2016-04-16 11:03:46
@misc{6359bf17-c9d3-4d61-8917-9860043caf36,
  abstract     = {his paper addresses voltage control of distributed DC power systems. Especially the dynamic properties of load source interactions are highlighted. They are interesting since the sources are considered weak for a distributed power system. This is illustrated with simulations where the power is fed from wind turbines only, and still constant power loads are controlled at the same time as the DC bus voltage level. The wind power generators are modeled as permanent magnet synchronous machines. The controller needed for the machines, including position estimation and field weakening, is discussed. To control the DC bus voltage, more power than consumed by the loads must be supplied to the wind turbines and the excess power removed by pitch angle control. Pitch angle control is a comparably slow process and therefore the DC bus voltage controller must handle the transient power distribution.},
  author       = {Karlsson, Per and Svensson, Jörgen},
  keyword      = {DC distribution system,distributed generation,droop control,wind energy},
  language     = {eng},
  pages        = {333--338},
  series       = {Proceeding Power and Energy Systems - 2002},
  title        = {DC Bus Voltage Control for Renewable Energy Distributed Power Systems},
  year         = {2002},
}