DocumentCode :
807432
Title :
A new optimal reactive power flow model in rectangular form and its solution by predictor corrector primal dual interior point method
Author :
Yan, Wei ; Juan Yu ; Yu, David C. ; Bhattarai, Kalu
Author_Institution :
Electr. Power Dept., Chongqing Univ., Chongqing City, China
Volume :
21
Issue :
1
fYear :
2006
Firstpage :
61
Lastpage :
67
Abstract :
A new optimal reactive power flow (ORPF) model in rectangular form is proposed in this paper. In this model, the load tap changing (LTC) transformer branch is represented by an ideal transformer and its series impedance with a dummy node located between them. The voltages of the two sides of the ideal transformer are then used to replace the turn ratio of the LTC so that the ORPF model becomes quadratic. The Hessian matrices in this model are constants and need to be calculated only once in the entire optimal process, which speed up the calculation greatly. The solution of the ORPF problem by the predictor corrector primal dual interior point method is described in this paper. Two separate prototypes for the new and the conventional methods are developed in MATLAB in order to compare the performances. The results obtained from the implemented seven test systems ranging from 14 to 1338 buses indicate that the proposed method achieves a superior performance than the conventional rectangular coordinate-based ORPF.
Keywords :
Hessian matrices; load flow; power transformers; predictor-corrector methods; reactive power; Hessian matrices; MATLAB; load tap changing transformer; optimal reactive power flow model; predictor corrector primal dual interior point method; rectangular form; series impedance; Equations; Impedance; Load modeling; MATLAB; Mathematical model; Power system modeling; Predictive models; Prototypes; Reactive power; Voltage; Nonlinear programming; optimal reactive power flow (ORPF); predictor corrector primal dual interior point method (PCPDIPM); sparse techniques;
fLanguage :
English
Journal_Title :
Power Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8950
Type :
jour
DOI :
10.1109/TPWRS.2005.861978
Filename :
1583699
Link To Document :
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