Transient stability improvement in transmission system using SVC with Fuzzy Logic Control

Udhayashankar, C.; Thottungal, Rani; Francis, Yuvaraj Maria

doi:10.1109/icaee.2014.6838505

Cited by 8 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results obtained in this work can be extended to power compensating elements, such as a flexible alternating current transmission system (FACTS) . The References propose a transient stability analysis that takes FACTS devices into account. The methodology used in these studies is based on the mathematical sensitivity analysis, with the aim to provide the best localization and the respective quantification of the necessary resources to reinforce a transmission system.…”

Section: Introductionmentioning

confidence: 94%

Transient stability improvement for electrical power systems based on the impedance change of a transmission system

Silva

Isoda

Tonelli‐Neto

et al. 2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

This study presents a new preventive control model based on sensitivity analysis that aims to improve the transient stability by changing the configuration of the transmission system. By considering a list of severe contingencies for electrical power systems through security analysis, once exists instability cases in the sense of transient stability, the sensitivity analysis in this article provides the “best localization” and the respective quantification of transmission lines to correct the system's security to a desired security margin. With this preventive control strategy, one can obtain a secure configuration of the power system. Several studies present transmission reinforcement, for example, transmission line inclusion, as an efficient approach. In this study, the system will improve the stability for every short circuit fault considered, increasing the transmission capacity. This detail can be illustrated using a simple transient stability method, namely, the equal‐area criterion. Considering adaptations and some simplifications, the results obtained in this work can be used for FACTS devices. The stability analysis is conducted using the security margin concept determined by the direct Lyapunov energy method; it is a support tool that aids planners and operators of electric power systems. In addition, a procedure called security margin displacement effort is presented in order to infer the numerical validity of the sensitivity model. The method is tested with a power system composed of 45 buses, 73 transmission lines, and 10 synchronous machines.

show abstract

Section: Introductionmentioning

confidence: 94%

Transient stability improvement for electrical power systems based on the impedance change of a transmission system

Silva

Isoda

Tonelli‐Neto

et al. 2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…The lack of proper maintenance planning has identified the cause of most of the system failures occurring in the national grid. Adequate maintenance planning can yield effective means of improving the transient stability without the need for constructing new transmission lines [10]. Many FACTS devices have been suggested for improving the power system operation and maintenance as proposed in the study [11] [12] and is now commonly used as an integral part of electrical power components.…”

Section: Extent Of Past Workmentioning

confidence: 99%

Improving Voltage Stability in Nigerian 330kv Transmission Network Using Intelligent Solid State Var Compensator (SSVC)

Ngang¹,

Kazeem²

2021

JEEE

View full text Add to dashboard Cite

The low performance of power supply in the transmission network is as a result of voltage instability, this is overcome by improving voltage stability in Nigerian 330kv transmission network using intelligent solid state var compensator (SSVC). It is achieved in this procedure by running the load flow from the characterized data thereby locating the faulty buses that their per unit volts do not fall within the ranges of 0.95 through 1.05, designing a conventional model for voltage stability in Nigerian 330KV transmission network, designing SIMULINK model for SSVC, designing a rule base that will enhance the faulty buses to attain voltage stability. Integrating the designed SIMULINK model for SSVC to designed rule base and designing a SIMULINK model for improving voltage stability in Nigerian 330KV transmission network using intelligent solid state var compensator. The results obtained were as follows: In bus1 the conventional per unit volts is 0.92P.U.volts which did not reach the range of voltage stability of 0.95 through 1.05 P.U.volts. On the other hand, when intelligent solid state var compensator (ssvc) is incorporated in the system the per unit volts becomes 0.9779P.U.volts thereby attaining voltage stability that enhances power supply. In bus 9 the conventional per unit volts is 0.922P.U.volts which did not attain the voltage stability range of 0.95 through 1.05 P.U.volts. On the other hand, when intelligent solid state var compensator (ssvc) is incorporated in the system the per unit volts becomes 0.9801P.U.volts thereby attaining voltage stability that enhances power supply.

show abstract

“…The rotor angle ( i δ ) of i th generator using the step by step procedure for multi-machine system like that of Nigerian grid can be determined by the following nonlinear differential equations (10)(11)(12), [31]. The step by step procedure for determining the critical clearing time of the network is depicted in Figure 3.…”

Section: Nigeria 330kv Transmission Networkmentioning

confidence: 99%

“…Transmission Systems (FACTS) devices have been identified as cost effective means of improving the transient stability without the need for constructing new transmission lines [10]. Several FACTS devices have been proposed for improving the power system operation and they are [11] [12]and is now forming an integral part of modern electrical power systems [2]. It is one of the key devices that exhibit instantaneous response to system changes and are fabricated from solid semiconductor components [13].…”

mentioning

confidence: 99%

Improving the Transient Stability of Nigerian 330kv Transmission Network Using Static Var Compensation Part I: The Base Study

2015

View full text Add to dashboard Cite

In this paper, the base study for improving the transient In this paper, the base study for improving the transient In this paper, the base study for improving the transient In this paper, the base study for improving the transient stability of Nigerian 330kV transmission network using stability of Nigerian 330kV transmission network using stability of Nigerian 330kV transmission network using stability of Nigerian 330kV transmission network using Static Var Compensation (SVC) is conducted with the focus of developing indices that can appropriately size and Static Var Compensation (SVC) is conducted with the focus of developing indices that can appropriately size and Static Var Compensation (SVC) is conducted with the focus of developing indices that can appropriately size and Static Var Compensation (SVC) is conducted with the focus of developing indices that can appropriately size and locate SVC within the network. The study locate SVC within the network. The study locate SVC within the network. The study locate SVC within the network. The study is performed using commercially available software is performed using commercially available software is performed using commercially available software is performed using commercially available software Dig SILENT Dig SILENT Dig SILENT Dig SILENT Power Power Power Power Factory. Factory. Factory. Factory. The overloaded lines which SVCs with SVCs with SVCs with values 124Mvar, 73Mvar, 62Mvar and 110Mvar values 124Mvar, 73Mvar, 62Mvar and 110Mvar values 124Mvar, 73Mvar, 62Mvar and 110Mvar values 124Mvar, 73Mvar, 62Mvar and 110Mvar located at Osogbo, Kaduna and Benin located at Osogbo, Kaduna and Benin located at Osogbo, Kaduna and Benin located at Osogbo, Kaduna and Benin compensated the network compensated the network compensated the network compensated the network and increase the CCTs and increase the CCTs and increase the CCTs and increase the CCTs to 470ms, 500ms, 220ms and 120ms, respectively. to 470ms, 500ms, 220ms and 120ms, respectively. to 470ms, 500ms, 220ms and 120ms, respectively. to 470ms, 500ms, 220ms and 120ms, respectively.

show abstract

Transient stability improvement in transmission system using SVC with Fuzzy Logic Control

Cited by 8 publications

References 8 publications

Transient stability improvement for electrical power systems based on the impedance change of a transmission system

Transient stability improvement for electrical power systems based on the impedance change of a transmission system

Improving Voltage Stability in Nigerian 330kv Transmission Network Using Intelligent Solid State Var Compensator (SSVC)

Improving the Transient Stability of Nigerian 330kv Transmission Network Using Static Var Compensation Part I: The Base Study

Contact Info

Product

Resources

About