A New Line Voltage Stability Index (NLVSI) For Voltage Stability Assessment

Burle, Trinadha; Chintapalli, V V S Bhaskara Reddy; Thota, Phanindra

doi:10.1007/978-981-15-0214-9_57

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…It is tested on single branch and 10‐bus regional power system network. Burle et al proposed a new static line‐based voltage stability index, NLVSI in [27]. In this index, line charging succeptance only neglected, remaining active power flow, reactive power flow and bus angle effects all are considered.…”

Section: Introductionmentioning

confidence: 99%

Effect of ambient temperature variations on estimation of proximity of the voltage collapse point

Burle

Chintapalli

2020

IET Generation Trans & Dist

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Due to deforestation, greenhouse gases and increasing air conditioner systems, the temperatures are changing drastically and the effects are prominent in summer and winter seasons. These ambient temperature variations are affecting the transmission system parameters and also the voltages at various buses. Changes in the transmission line parameters have non‐negligible impact on system performance and present Energy Management applications are not considering these temperature variations in the power system state estimation. In this paper, impact of temperature variations on the power system Voltage Stability assessment is considered. Voltage stability assessment methods make use of the load flow results. Load flow results without considering the temperature variations are inaccurate in the real‐time and leading to the erroneous results in the voltage stability assessment. In view of this, studies have been carried out on IEEE 30‐bus, 118‐bus and 300‐bus systems, incorporating the seasonal temperature variations on various types of conductors, and also demonstrated the impact with conventional and ZIP type load models. In this paper, four voltage stability indices NLVSI, Lmn, FVSI and VCPI(power) are used for identifying the proximity of voltage collapse point, critical line, critical bus voltage, critical bus angle, total system active power loss, total system reactive power loss etc.

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Section: Introductionmentioning

confidence: 99%

Effect of ambient temperature variations on estimation of proximity of the voltage collapse point

Burle

Chintapalli

2020

IET Generation Trans & Dist

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“…In accordance to the system's voltage stability, critical lines, feeble buses in the system, maximum load acceptable and voltage collapse point may be predicted using the Fast Voltage Stability Index (FVSI) model. However, the line's real power flow is neglected leading to inaccuracy in the results when real power increment is faced by the FVSI model [5]. The reactive power is used for calculation of line stability index (LSI).…”

Section: Introductionmentioning

confidence: 99%

December 2020

2020

JEEA

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In stressed operating conditions, several types of voltage stability indices (VSI) are used for the assessment of voltage stability at specific operating points. The performance of various available VSIs are compared in this paper. The one generation unit tripped effects, single line to ground (SLG) fault and inductive loading variations occur in combinational format with such operating conditions. Voltage collapse occurs in the lines or nodes due to the stressed operating conditions (SOC). SLG fault, loading effects, power margin, line continency ranking, and line number are some of the performance parameters of VSI analysed in this paper. For utilization of reactive power compensation, the proper location can be chosen with the help of critical line and node analysis (CLNA) that makes use of VSIs. For any SOC, accurate voltage instability prediction is performed using VSI as per the simulation results. Under voltage collapse due to multiple causes, the voltage stability assessment of any specific line can be performed using this information.

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Effect of Different Load Models on Estimation of Maximum Acceptable Load at a Weak Bus Using Line-Based Voltage Stability Indices

Burle

Chintapalli

2021

Lecture Notes in Electrical Engineering

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A New Line Voltage Stability Index (NLVSI) For Voltage Stability Assessment

Cited by 5 publications

References 8 publications

Effect of ambient temperature variations on estimation of proximity of the voltage collapse point

Effect of ambient temperature variations on estimation of proximity of the voltage collapse point

December 2020

Effect of Different Load Models on Estimation of Maximum Acceptable Load at a Weak Bus Using Line-Based Voltage Stability Indices

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