Voltage stability assessment in radial distribution system by line stability indicator (LSI) and its improvement using SVC

Chakraborty, Kunal; Deb, G.K.; Deb, Suman

doi:10.1109/icpeices.2016.7853132

Cited by 12 publications

(9 citation statements)

References 9 publications

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“…Equation [9] is very important as it gives us the relationship between the amount of reactive power injected at any particular or set of buses and the change in voltage at all buses. Let…”

Section: Derivation Of L-index Sensitivity Matrixmentioning

confidence: 99%

“…L-Index Sensitivities (Lq) which presents the information of the modification in value of L-Index with change in reactive power injection has been suggested. In reference (9), voltage stability assessment in radial distribution systems by proposing a new voltage stability index named Line Stability Index (LSI). Line stability index predicts the line which is more prone to voltage instability.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimal Location and Sizing of Reactive Power Compensation Devices for Voltage Stability Improvement of Radial Power Systems

Bhargavi¹,

Bhargavi²

2022

ECS Trans.

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With the advancement in technology, the electricity demand is increasing day by day. Power supply utilities are facing the problem to expand their network owing to the problems like availability of land in urban areas and Right of Way (ROW). Due to these problems, many of the existing lines are operating nearer to their thermal stability limit. Maintaining the voltage within the limits will be a challenging task for the utilities. Increased loading of the lines is making the power system to the verge of voltage stability. Many indices are proposed in the literature for predicting the voltage stability of the system. In this paper, L-Index is used for voltage stability analysis of the radial distribution system. L-Index sensitivity method is used to the locate and size the reactive power compensation devices. The effectiveness of L-Index sensitivity method on the larger power system like IEEE-33 bus system is presented in this paper and simulation studies are performed using MATLAB/SIMULINK.

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“…Equation [9] is very important as it gives us the relationship between the amount of reactive power injected at any particular or set of buses and the change in voltage at all buses. Let…”

Section: Derivation Of L-index Sensitivity Matrixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Location and Sizing of Reactive Power Compensation Devices for Voltage Stability Improvement of Radial Power Systems

Bhargavi¹,

Bhargavi²

2022

ECS Trans.

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show abstract

“…Considering Advanced Metering Infrastructure (AMI) like Phasor Measuring Unit (PMU) these two indices are more suitable for Smart Grid (SG) environment. Line Stability Index (LSI) is introduced using load angles, branch parameters and current and reactive power of receiving node [11]. Importantly, this index seems to be independent of voltage magnitudes but required indirectly while calculating the branch current.…”

Section: Introductionmentioning

confidence: 99%

Static Voltage Stability of Reconfigurable Radial Distribution System Considering Voltage Dependent Load Models

Janamala¹,

Pandraju²

2020

MMEP

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This paper presents the static voltage stability analysis of RDS. Initially the performance of RDS is evaluated using backward/forward load flow considering voltage-dependent load modeling. Later, the load flow solution is used for determining the static voltage stability of the system. The analysis is performed for different type of loads such as constant power, constant current, constant impedance, residential, industrial, commercial, agricultural and electric vehicle loads. The simulations are performed for standard and optimal reconfigured topology of standard IEEE 33-bus test system. The comparative study reveals the importance of load type and topology while assessing the static stability analysis of radial distribution systems.

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“…Power quality is always the top priority for the electrical utility to look on providing a continuous supply to their customers. The integration of distributed generators in the distribution network is increasing day by day [1] due to the protection of the environment from harmful emissions, technological advancement, energy crisis, power outages, technical issues, and economic incentives [2]. The intermittent nature of renewable energy sources will introduce many challenges to the power quality of the electricity supply [3].…”

Section: Introductionmentioning

confidence: 99%

“…Voltage stability is essentially related to the reactive power balance [1], so by controlling reactive power between leading and lagging power factor can maintain the voltage within the acceptable voltage range and improve the reliability of the system. The conventional method in controlling the reactive power where power factor correction was fixed by the integration of fixed capacitors proving reactive power supply.…”

Section: Introductionmentioning

confidence: 99%

Voltage regulation and power loss reduction by integration of SVC in distribution networks via PSSE

Saleh

Yin

Verayiah

2020

IJPEDS

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Voltage stability is necessary in order to maintain the health of the grid system. In recent years, the load demand is increasing from time-to-time which compromised the stability of the system. On that purpose, several methods on enhancing the voltage stability of the system was introduced such as the transformer tap and FACTS devices. In a general overview, this study is to propose a several power compensation techniques on the base case of an IEEE-33 bus whereby power flow analysis using Netwon- Raphson in PSS/E software is performed. Afterwards, distributed generation (DG) and Static VAR Compensator (SVC) will be implemented within the distribution network to compensate the voltage instability losses based on the weakest index from the bus system. From both the cases which is proposed earlier, a comparison study is conducted on the performance on both DG and SVC within the proposed network.

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Voltage stability assessment in radial distribution system by line stability indicator (LSI) and its improvement using SVC

Cited by 12 publications

References 9 publications

Optimal Location and Sizing of Reactive Power Compensation Devices for Voltage Stability Improvement of Radial Power Systems

Optimal Location and Sizing of Reactive Power Compensation Devices for Voltage Stability Improvement of Radial Power Systems

Static Voltage Stability of Reconfigurable Radial Distribution System Considering Voltage Dependent Load Models

Voltage regulation and power loss reduction by integration of SVC in distribution networks via PSSE

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