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A compact algorithm for three-phase three-wire system reactive power compensation and load balancing

Conference ·
OSTI ID:433843
 [1]; ;  [2]
  1. Kao Yuan Junior Coll. of Technology and Commerce, Kaohsiung (Taiwan, Province of China). Dept. of Electrical Engineering
  2. National Taiwan Inst. of Tech., Peitow-Taipei (Taiwan, Province of China). Dept. of Electrical Engineering
A compact control algorithm for reactive power compensation and load balancing with the static var compensator (SVC) in three-phase three-wire systems is developed in this paper. Each phase susceptance of the SVC can be obtained from a very simple function of voltage and power signals which are measured by a three-phase voltage transducer and two single-phase active and reactive power (P-Q) transducers at the load bus. The calculation of compensation susceptances is based on the criterion of a unity power factor and zero sequence currents after compensation. A simulation is made, as the first stage, to show the validity of the proposed compensation algorithm. Then, a laboratory size microcomputer-based SVC, which consists of thyristor-controlled reactors (TCRs) and fixed capacitors (FCs), is designed and implemented. Simulation and experiment results show that the algorithm is very suitable for on-line control of the SVC which is designed for phase balancing and power factor correction.
Sponsoring Organization:
National Science Council, Taipei (Taiwan, Province of China)
OSTI ID:
433843
Report Number(s):
CONF-951136--; ISBN 0-7803-2981-3
Country of Publication:
United States
Language:
English

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