Power Transmission Paths Based Voltage Stability Assessment

Wang, Liang; Liu, Yutian; Luan, Zhaowen

doi:10.1109/tdc.2005.1546950

Cited by 10 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The significant motive of VCPI_1 is that, during the voltage collapse, the voltage drop at the Thevenin impedance equals the load voltage. The proximity index derived in [14] is denoted as VCPI_1 to prevent confusion from the VCPI notation. An easy arithmetic prediction indicates that, during the critical situation, the generator phasor voltage ( V s ) is double the load phasor voltage, V r .…”

Section: Voltage Collapse Proximity Index (Vcpi_1)mentioning

confidence: 99%

A Comprehensive Review on the Modelling and Significance of Stability Indices in Power System Instability Problems

Valuva,

Chinnamuthu,

Khurshaid

et al. 2023

Energies

View full text Add to dashboard Cite

Many technological advancements in the modern era have made actual use of electrical power and the constrained operating of power systems within stability limits. Some expeditious load variations and rising power demands initiate complications in voltage stability and can put stress on performance, leading to voltage instability. Voltage Stability Indices can be used to perform voltage stability assessment. This review evaluates various VSIs based on mathematical derivations, assumptions, critical values, and methodology. VSIs determine the maximum loadability, voltage collapse proximity, stability margin, weak areas, and contingency ranking. Stability indices can also specify the optimal placing and sizing of Distributed Generators. Thus, VSIs play a vital role in power system voltage stability. This review is a comprehensive survey of various indices and analyses their accuracy in determining the instability of power systems. Voltage stability is a crucial concern in operating a reliable power system, and the systematic evaluation of voltage stability is essential in a power system. This review considered and analyzed 34 indices from 138 articles from the literature for their significant performance in various power system stability problems. Of 33 indices, were 22 derived from transmission line parameters, referred to as line indices, and 12 from bus and line parameters, referred to as bus indices.

show abstract

Section: Voltage Collapse Proximity Index (Vcpi_1)mentioning

confidence: 99%

A Comprehensive Review on the Modelling and Significance of Stability Indices in Power System Instability Problems

Valuva,

Chinnamuthu,

Khurshaid

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…• The index VCPI A tracks information about the weakest transmission paths and the reactive power reserve of the network (Wang et al, 2005). • The integrated transmission line transfer index (ITLTI) is computed with the help of the power factor of the receiving end load and the power angle between sending and receiving ends.…”

Section: Miscellaneous Indicesmentioning

confidence: 99%

A survey on voltage stability indices for power system transmission and distribution systems

Baleboina,

Mageshvaran

2023

Front. Energy Res.

View full text Add to dashboard Cite

Voltage stability is a critical aspect of power system operation, ensuring the reliable and efficient delivery of electrical energy to consumers. Recently, voltage stability in the power system has received much attention. The primary cause of voltage instability is the lack of real and reactive power generation to cope with the continuous demand increment. Maintaining voltage stability while planning, controlling, and assessing the system’s security is a difficult task for power system engineers. From knowledge of past incidents, a lack of reactive power is identified as the primary cause of voltage instability, which may further lead to the total collapse of the system. The importance of voltage stability assessment is essential to maintain the integrity of power systems. It helps prevent voltage instability, which can lead to cascading failures and widespread outages. This paper uses various parameters, including load demand, generator capacity, and system impedance, to develop voltage stability indices (VSIs). The paper mainly focuses on the idea of VSIs that have been developed in order to monitor and control the criticality of the power system. The voltage stability indices for transmission and distributed systems, as well as their subclasses, are thoroughly reviewed in this study. Furthermore, traditional voltage stability methods, as well as various software tools for monitoring the voltage stability problems, are also discussed. In addition, the development of VSIs and its related concepts are clearly described in this paper. This comprehensive survey provides a decent groundwork for future work in this area, and assists professionals in selecting the optimal VSI for various applications. Moreover, it provides a concise overview of methods and the importance of voltage stability assessment in both transmission and distribution systems.

show abstract

“…In order to prove the secondary control's effectiveness for the microgrid voltage stability, we apply the line voltage stability VCPI_1 in both case 1 and case 2. The VCPI_1 is defined in [47] as:…”

Section: Stability Indexmentioning

confidence: 99%

Dynamic Performance Evaluation of the Secondary Control in Islanded Microgrids Considering Frequency-Dependent Load Models

2022

View full text Add to dashboard Cite

Performance analysis is challenging in modern power distribution networks due to the increasing penetration of distributed energy resources (DERs) interfaced by voltage source converters (VSCs). Parameter uncertainty, black-box models of the components, and low inertia are some of the issues that must be addressed. The latter can represent high vulnerabilities to sudden load changes in a microgrid (MG). Additionally, the islanded operation represents a challenge for inverter-based (DERs), where secondary control must regulate the microgrid frequency and voltage to its nominal values. When a secondary control strategy is implemented, it is necessary to validate its performance under several conditions. Most existing research papers focus on the microgrid’s small-signal and transient stability. At the same time, little has been done on the influence of the load model on voltage stability. This type of analysis is required to ensure an adequate transition between the grid-connected and stand-alone modes. This paper provides a voltage stability analysis of a microgrid, considering secondary control based on receding horizon and frequency-dependent load models. Simulation results demonstrate the robust performance of the secondary control and validate the importance of considering or adapting voltage stability indices to ensure adequate microgrid performance.

show abstract

Power Transmission Paths Based Voltage Stability Assessment

Cited by 10 publications

References 6 publications

A Comprehensive Review on the Modelling and Significance of Stability Indices in Power System Instability Problems

A Comprehensive Review on the Modelling and Significance of Stability Indices in Power System Instability Problems

A survey on voltage stability indices for power system transmission and distribution systems

Dynamic Performance Evaluation of the Secondary Control in Islanded Microgrids Considering Frequency-Dependent Load Models

Contact Info

Product

Resources

About