Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)

Wondie, Tebeje Tesfaw; Tella, Teshome Goa

doi:10.1155/2022/2071454

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…Line voltage stability indices (LVSIs) are the simplest indices that are appropriate instruments to determine the power system's weak buses and critical lines, and are suitable for evaluating voltage stability for lines and buses. In addition, they are suitable for solving optimization problems because of their ability to determine weak areas in the power systems [51,73].…”

Section: Voltage Stability Indices (Vsis) and Their Limitationsmentioning

confidence: 99%

A novel collapse prediction index for voltage stability analysis and contingency ranking in power systems

Mokred

Wang

Chen

2023

Prot Control Mod Power Syst

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Voltage instability is a serious phenomenon that can occur in a power system because of critical or stressed conditions. To prevent voltage collapse caused by such instability, accurate voltage collapse prediction is necessary for power system planning and operation. This paper proposes a novel collapse prediction index (NCPI) to assess the voltage stability conditions of the power system and the critical conditions of lines. The effectiveness and applicability of the proposed index are investigated on the IEEE 30-bus and IEEE 118-bus systems and compared with the well-known existing indices (Lmn, FVSI, LQP, NLSI, and VSLI) under several power system operations to validate its practicability and versatility. The study also presents the sensitivity assumptions of existing indices and analyzes their impact on voltage collapse prediction. The application results under intensive case studies prove that the proposed index NCPI adapts to several operating power conditions. The results show the superiority of the proposed index in accurately estimating the maximum load-ability and predicting the critical lines, weak buses, and weak areas in medium and large networks during various power load operations and contingencies. A line interruption or generation unit outage in a power system can also lead to voltage collapse, and this is a contingency in the power system. Line and generation unit outage contingencies are examined to identify the lines and generators that significantly impact system stability in the event of an outage. The contingencies are also ranked to identify the most severe outages that significantly cause voltage collapse because of the outage of line or generator.

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Section: Voltage Stability Indices (Vsis) and Their Limitationsmentioning

confidence: 99%

A novel collapse prediction index for voltage stability analysis and contingency ranking in power systems

Mokred

Wang

Chen

2023

Prot Control Mod Power Syst

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show abstract

“…As a result, voltage collapse takes place. Voltage collapse represents to the procedure by which a series of circumstances resulting from voltage instability cause an unacceptable low voltage situation in a sizable portion of a power system network [6], [7]. Voltage collapse issues have become one of the most critical anxieties in the power sector during the last two decades, as they have been the primary cause of numerous main blackouts around the world.…”

Section: Introductionmentioning

confidence: 99%

Impact Analysis of Distributed Solar Photovoltaic Power Generation System Integration on Power Grid Voltage Stability Using Static Techniques

2023

IJETER

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Recently, the rise in consumption of electrical energy and power transmission between various utilities has resulted in the emergence of anxieties about the power system's network voltage stability. Additionally, the necessity for power systems to perform in a secure condition has increased due to an increase in load demand globally. Therefore, the use of renewable energy-based distributed generation is growing quickly to help meet electrical demand and disrupt environmental issues caused by the use of fossil fuels. This type of generation can have a positive or negative influence on the stability of the power system. This paper analyzes the effects of distributed PV power integration on the power grid's voltage stability using static techniques. In order to improve efficacy and accuracy, give a complete and in-depth understanding of the problem of voltage stability, and identify the causes of instability, a combination of four different techniques is employed for analysis. Analysis methodologies include modal analysis, sensitivity analysis, PV curve, and QV curve. The analysis of voltage stability is carried out on an IEEE 14-bus system by using NEPLAN software. The simulation results showed that the integration of a renewable energy resource-based distributed solar PV power system into the test system led to a noticeable improvement in stability degree, a decrease in sensitivity of buses, a significant improvement in system MW loading, an enhancement in voltage profile, and a perceptible increase in reactive power margin

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Reinventing power quality enhancement: deep reinforcement learning control for PV-UPQC in microgrids

Bindu,

Kavin,

Kumar

et al. 2024

Electr Eng

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Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)

Cited by 4 publications

References 16 publications

A novel collapse prediction index for voltage stability analysis and contingency ranking in power systems

A novel collapse prediction index for voltage stability analysis and contingency ranking in power systems

Impact Analysis of Distributed Solar Photovoltaic Power Generation System Integration on Power Grid Voltage Stability Using Static Techniques

Reinventing power quality enhancement: deep reinforcement learning control for PV-UPQC in microgrids

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