Steady-state analysis of power system having multiple FACTS devices using line-flow-based equations

Yan, Pan; Sekar, A.

doi:10.1049/ip-gtd:20041133

Cited by 37 publications

(17 citation statements)

References 6 publications

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“…In most cases, the shunt susceptances of a line are usually neglected. Therefore, the TCSC's static capacitor will be directly in series with the line impedance [48]. The model of a transmission line with series impedance Z ij = R ij + jX ij and a TCSC installed between bus i (with voltage V i ) and bus j (with voltage V j ) is shown in Figure 1a.…”

Section: Modeling Of Tcscmentioning

confidence: 99%

A Hybrid Approach for Power System Security Enhancement via Optimal Installation of Flexible AC Transmission System (FACTS) Devices

et al. 2017

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Abstract:Increasing demand for electricity has placed heavy stress on power system security. Therefore, this paper focuses on the problem of how to maximize power system static security in terms of branch loading and voltage level under normal operation and even the most critical single line contingency conditions. This paper proposes a hybrid approach to find out the optimal locations and settings of two classical types of flexible AC transmission system (FACTS) devices, namely thyristor-controlled series compensators (TCSCs) and static var compensators (SVCs) for solving this problem. Our proposed approach requires a two-step strategy. Firstly, the min cut algorithm (MCA) and tangent vector technique (TVT) are applied to determine the proper candidate locations of TCSC and SVC respectively so as to reduce the search scope for a solution to the problem, and then the cuckoo search algorithm (CSA) is employed to solve this problem by simultaneously optimizing the locations and settings for TCSC and SVC installation. The proposed hybrid approach has been verified on the IEEE 6-bus and modified IEEE 14-bus test systems. The results indicate that CSA outperforms particle swarm optimization (PSO), proving its effectiveness and potential, and they also show that our proposed hybrid approach can find the best locations and settings for TCSC and SVC devices as an effective way for enhancing power system static security by removing or alleviating the overloads and voltage violations under normal operation and even the most critical single line contingency conditions. Using this hybrid approach, the search space for solution to the problem becomes limited hence the computational burden will be decreased.

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Section: Modeling Of Tcscmentioning

confidence: 99%

A Hybrid Approach for Power System Security Enhancement via Optimal Installation of Flexible AC Transmission System (FACTS) Devices

et al. 2017

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“…When FACTS devices are installed in the transmission system, the model of FACTS devices can be unified as shown in Fig. 1 [22]. Intuitively, FACTS devices affect the system flow distribution mainly through three key parameters, the bus voltage, the line impedance, and the beginning and the end of the relative phase angle [23].…”

Section: 1mentioning

confidence: 99%

Optimal allocation of multi-type FACTS devices in power systems based on power flow entropy

Xiao

Cao

et al. 2014

J. Mod. Power Syst. Clean Energy

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Flexible AC transmission systems (FACTS) devices can effectively optimize the distribution of power flow. Power flow entropy can be applied as a measure of load distribution. In this paper, a method is proposed to optimize the distribution of power flow with the coordination of multi-type FACTS devices and establishes the corresponding mathematical models. The modified group searcher optimization (GSO) algorithm is proposed, in which the angle search is combined with chaotic search model to avoid jumping into local optimization. Compared with the different optimal allocation of multi-FACTS devices, the optimal allocation of multi-FACTS devices is achieved under the economic constraints. The locations obtained by this method can achieve the purpose of balancing power flow and enhancing the system performances. The simulations are demonstrated in an IEEE 118-bus power system with two classical types of FACTS, namely static var compensator (SVC) and thyristor controlled series Compensator (TCSC). The simulation results show that the proposed method is feasible and effective.

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“…In the following, a short introduction of this method is described to make the problem clear. Note that the accuracy of the LFB power flow model has been investigated and approved in different applications [20][21][22]. Matrix representations of active and reactive power balance equations at all buses, save the slack bus, are expressed as (1) and (2), respectively.…”

Section: Nomenclaturementioning

confidence: 99%

A non-iterative approach for AC state estimation using line flow based model

Safdarian

Fotuhi‐Firuzabad

Aminifar

2012

International Journal of Electrical Power & Energy Systems

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Steady-state analysis of power system having multiple FACTS devices using line-flow-based equations

Cited by 37 publications

References 6 publications

A Hybrid Approach for Power System Security Enhancement via Optimal Installation of Flexible AC Transmission System (FACTS) Devices

A Hybrid Approach for Power System Security Enhancement via Optimal Installation of Flexible AC Transmission System (FACTS) Devices

Optimal allocation of multi-type FACTS devices in power systems based on power flow entropy

A non-iterative approach for AC state estimation using line flow based model

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