Performance comparison of SVC and TCSC in power flow control
24 Aug 2015-pp 1-5
TL;DR: Comparison analysis on power flow incorporating FACTS devices namely Thyristor Controlled Series Compensator (TCSC) and Static Var Compensators in standard test system is carried out.
Abstract: Flexible AC Transmission Systems (FACTS) technology is used for the transmission of bulk power with proper controllability. In this paper comparative analysis on power flow incorporating FACTS devices namely Thyristor Controlled Series Compensator (TCSC) and Static Var Compensator (SVC) in standard test system is carried out. Parameters like real power flow, voltage profile and losses in the test systems are compared by placing FACTS devices at different locations. Modeling of SVC and TCSC is done using Firing Angle model and Variable Reactance modeling techniques, respectively. These FACTS models are incorporated into Newton Raphson Power flow algorithm and the analysis is carried out.
Citations
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TL;DR: In this paper , a unified AC transmission network expansion planning (TNEP) formulation is proposed, which integrates voltage source controlled-multiterminal HVDC (VSC-MTDC) systems, Flexible AC Transmission Systems (FACTS) devices and Reactive Power Planning (RPP) to achieve an optimal transmission configuration.
2 citations
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01 Feb 2018TL;DR: After the SVC placement is optimized, then the system performance will increase such as the voltage of all buses is at the standard level and the decrease of power losses.
Abstract: To improve voltage profile, we can use FACTS equipment. One of them is SVC (Static Var Compensator). This study aims to determine the location and optimal capacity of SVC and to determine the effect after SVC installation. This research was conducted in 150 kV transmission system, West Java load regulator area of South Bandung and New Ujungberung subsystem. The research method used for power flow simulation is Newton Raphson and to determine the optimal position and capacity of SVC was using genetic algorithm in MATLAB R2014. After the SVC placement is optimized, then the system performance will increase such as the voltage of all buses is at the standard level and the decrease of power losses.
References
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TL;DR: In this article, an advanced load flow model for the static VAr compensator (SVC) is presented, which uses the firing angle as the state variable to provide key information for cases when the load flow solution is used to initialize other power system applications.
Abstract: Advanced load flow models for the static VAr compensator (SVC) are presented in this paper. The models are incorporated into existing load flow (LF) and optimal power flow (OPF) Newton algorithms. Unlike SVC models available in open literature the new models depart from the generator representation of the SVC and are based instead on the variable shunt susceptance concept. In particular, a SVC model which uses the firing angle as the state variable provides key information for cases when the load flow solution is used to initialize other power system applications, e.g., harmonic analysis. The SVC state variables are combined with the nodal voltage magnitudes and angles of the network in a single frame-of-reference for a unified, iterative solution through Newton methods. Both algorithms, the LF and the OPF exhibit very strong convergence characteristics, regardless of network size and the number of controllable devices. Results are presented which demonstrate the prowess of the new SVC models.
277 citations
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TL;DR: In this paper, a load flow model for the TCSC is presented, which takes account of the loop current that exists in TCSC under both partial and full conduction operating modes, and the model takes proper care of the resonant points exhibited by TCSC fundamental frequency impedance.
Abstract: A new and comprehensive load flow model for the thyristor controlled series compensator (TCSC) is presented in this paper. In this model the state variable is the TCSC's firing angle, which is combined with the nodal voltage magnitudes and angles of the entire network in a single frame-of-reference for a unified iterative solution through a Newton-Raphson method. Unlike TCSC models available in the open literature, this model takes account of the loop current that exists in the TCSC under both partial and full conduction operating modes. Also, the model takes proper care of the resonant points exhibited by the TCSC fundamental frequency impedance. The Newton-Raphson algorithm exhibits quadratic or near-quadratic convergence characteristics, regardless of the size of the network and the number of TCSC devices.
170 citations
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TL;DR: In this article, the authors present a model for TCSC which is applicable for typical transient and oscillatory stability studies and discuss relevant information to extend the modeling detail of the TCSC for use with long-term stability analysis.
Abstract: Thyristor-controlled series compensation (TCSC) is expected to be applied in transmission systems to achieve a number of benefits. To ensure best use of this new controller, planning engineers require analysis capability tailored to the specific performance characteristics of the TCSC. This paper presents a model for TCSC which is applicable for typical transient and oscillatory stability studies. Also included is a discussion on relevant information to extend the modeling detail of the TCSC for use with long-term stability analysis. >
162 citations
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TL;DR: In this article, a new particle swarm optimisation (PSO) variant, called enhanced leader PSO (ELPSO), was proposed for solving the FACTS allocation problem in a way leading to lower amounts of power flow violations, voltage deviations and power losses with respect to other optimisation algorithms.
76 citations
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TL;DR: In this paper, the analysis of steady state power flow control in the presence of flexible AC transmission system devices (FACTS devices) is discussed, and an example based on a large American power system is presented.
Abstract: The modern trend for consolidating electric power companies, even though the participants in these mergers may be not well connected electrically, suggests that technologies that permit power flow control in AC power networks may be favored for some applications. In this paper, the analysis of steady state power flow control in the presence of flexible AC transmission system devices (FACTS devices) is discussed. Objectives such as wheeling, line loading and unloading, ‘electronic fence’ methods to block power transfer, prevention of loop flows, and steady state security enhancement using FACTS are discussed. Newton-Raphson power flow studies for systems with FACTS devices are discussed. An example based on a large American power system is presented.
12 citations