Innovative techniques in modeling UPFC for power system analysis

Arabi, S.; Kundur, P.; Adapa, R.

doi:10.1109/59.852141

Cited by 37 publications

(17 citation statements)

References 15 publications

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“…A voltage compensation line which is parallel with the line of vector Vs -Vr in Fig. 3 can be defined as in [4,5]. Whenever the operating point lies in that line, the active power demand of line 1 remains unchanged.…”

Section: Ipfc Model and Analysismentioning

confidence: 99%

Application of IPFC Scheme in Power System Transients and Analysed using Fuzzy Technology

Radhakrishnan¹,

Rathika²

2011

IJCA

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The widespread use of power electronics in the field of power systems has grown significantly. With the growth of technology, power systems are seeking new and efficient forms of controlling power [1]. This paper deals with the development of Interline Power Flow Controller (IPFC) using fuzzy technology, suitable for an independent controllability over each compensated line in a multiline power system. The analysis developed is based on the d-q orthogonal coordinates, which shows an appropriate and easy method for assessing the IPFC response towards the system's operation. In the proposed scheme, series and shunt configuration employing an interline power flow controller using fuzzy technology is designed. Most of the compensation is provided by series controller. In case of excess real power demand shunt controller is used. The simulation is done using Matlab software-Simulink.

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Section: Ipfc Model and Analysismentioning

confidence: 99%

Application of IPFC Scheme in Power System Transients and Analysed using Fuzzy Technology

Radhakrishnan¹,

Rathika²

2011

IJCA

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“…In case a UPFC is installed, the number of nodes becomes and the conventional algebraic equations (3) become (5) where and are conventional dimensional complex injection current and voltage vectors in (2), respectively. In (5), and are 2-D complex UPFC injection current and voltage vectors with being the phase angle of the corresponding voltage as follows: (6) where subscript 1 corresponds to the shunt inverter side node ( in Fig. 1) and the subscript 2 to the series inverter or line side node ( in Fig.…”

Section: A Upfc Augments the Conventional Jacobianmentioning

confidence: 99%

A Newton-Type Current Injection Model of UPFC for Studying Low-Frequency Oscillations

Son

Lasseter

2004

IEEE Trans. Power Delivery

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Abstract-This paper presents a Newton-type current injection model of the unified power flow controller (UPFC) for studying the effect of the UPFC on the low-frequency oscillations. Since the proposed model is a Newton-type one, it is conceptually simple and gives fast convergence characteristics. The model is applied to an inter-area power oscillation damping regulator design of a sample two-area power system. The damping achievable by the UPFC equipped with damping regulator is investigated in both frequency and time domains using the proposed model. The case study results in this paper show that the proposed model is efficient for studying the effects of the UPFC on the inter-area oscillations.Index Terms-Flexible ac transmission systems (FACTS), power system oscillation damping, unified power flow controller (UPFC).

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“…• [5], [17], [37], [46], [74] Thyristor Controlled Series Capacitor (TCSC) [17], [33], [46], Thyristor Controlled Phase Angle Regulator (TCPAR) [34], [71], [79] , Unified Power Flow Controller (UPFC) [6], [7], [23], [38], [42], [70], [74]. The reactance of the line can be changed by TCSC .…”

Section: Optimal Power Flowmentioning

confidence: 99%

Impact of optimally placed VAR support on electricity spot pricing

Khajjayam¹

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In view of deregulation and privatization processes, electricity pricing becomes one of the most important issues. The increases in power flows and environmental constraints are forcing electricity utilities to install new VAR equipment to enhance network operation. In this thesis a nonlinear multi-objective optimization problem has been formulated to maximize both social welfare and the maximum distance to collapse point in an open power market using reactive support like Static Var Compensator (SVC). The production and consumption costs of reactive power are intended to provide proper market signals to the electricity market agents. They are included in the multi-objective Optimal Power Flow (OPF) coupled with an (N-1) contingency criterion which is based on power flow sensitivity analysis. Considering the cost associated with the investment of VAR support, placing them at the optimal location in the network is an important issue. An index to find the optimal site for VAR support considering various technical and economical parameters based on Cost Benefit Analysis (CBA) is proposed. The weights for these parameters are computed through an Analytic Hierarchy Process (AHP). A new approach of transmission pricing calculation taking VSC-OPF based multi-objective maximization as the objective and studied the impact of SVC on it. The integrated approach is illustrated on a 6-bus and a standard IEEE 14-bus test systems and shows promising results Acknowledgement First of all, I would like to thank the Transcendental Lord Sri Krsna who is beyond mundane sense perception, for giving me strength and intelligence to complete this work. I would like to express my profound gratitude to my advisor Dr. Ali Feliachi for his invaluable advice and continuous encouragement throughout this work. I would also like to thank Dr. Muhammad Choudhry for his suggestions and providing the opportunity to instruct Electromechanics lab. I am also thankful to my committee member Dr. Powsiri Klinkhachorn for his support throughout my graduate education. I would also like to thank Dr. Federico Milano, from University of Castilla-La Mancha, Spain, for providing the PSAT software and suggestions. Thanks to Dr. Karl Schoder for his valuable suggestions and discussions. A special thank to the students of lab 1001: Talpasai, Silpa, Ram Praveen, Pradeep, Anisha, Ali at APERC. I enjoyed every moment working togather in the lab. Many thanks to my Morgantown and Vijayawada friends for their encouragement. It is impossible to find the right words to thank my beloved parents, uncle and sister for their love and encouragement. Without it, this thesis would not be completed.

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Innovative techniques in modeling UPFC for power system analysis

Cited by 37 publications

References 15 publications

Application of IPFC Scheme in Power System Transients and Analysed using Fuzzy Technology

Application of IPFC Scheme in Power System Transients and Analysed using Fuzzy Technology

A Newton-Type Current Injection Model of UPFC for Studying Low-Frequency Oscillations

Impact of optimally placed VAR support on electricity spot pricing

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