Development of voltage stability constrained optimal power flow (VSCOPF)

Kim, S.; Song, Tianhao; Jeong, Mu-Gu; Lee, B.; Moon, Young-Hwan; Namkung, J.-Y.; Jang, Gilsoo

doi:10.1109/pess.2001.970325

Cited by 23 publications

(18 citation statements)

References 12 publications

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“…The indicator value varies between 0 (no load case) and 1 (voltage collapse) [26][27][28].One of the best features of the L-index is that the computation speed is very fast and so can be used for on-line monitoring of power system. Enhancing the voltage stability and moving the system far from voltage collapse point can be achieved by minimizing the following objective function …”

Section: Objective Functionsmentioning

confidence: 99%

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An IPM-CFAPSO based Hybrid Method for Multiple Objective Minimizations using TCPS

Balasubbareddy¹,

Obulesh²,

Raju³

2012

IJCA

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This paper presents an Interior Pont Method (IPM) and variant of Particle Swarm Optimization (CFAPSO) based hybrid method to solve optimal power flow in power system incorporating Flexible AC Transmission Systems (FACTS) such as Thyristor Controlled Phase Shifter (TCPS) for minimization of multiple objectives. The proposed IPM-CFAPSO algorithm identifies the optimal values of generator active-power output and the adjustment of reactive power control devices. The proposed optimization process with IPM-CFAPSO is presented with case study example using IEEE 30-bus test system to demonstrate its applicability. The results are presented to show the feasibility and potential of this new approach.

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Section: Objective Functionsmentioning

confidence: 99%

“…Actually, using a simplified state equation of PSO, Clerc and Kennedy developed CFA of PSO by eigen values [29,30]. The velocity of the constriction factor approach (simplest constriction) can be expressed as follows instead of (33) …”

Section: Constriction Factor Approach Pso (Cfapso)mentioning

confidence: 99%

An IPM-CFAPSO based Hybrid Method for Multiple Objective Minimizations using TCPS

Balasubbareddy¹,

Obulesh²,

Raju³

2012

IJCA

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“…An OPF with a maximal L-index constraint on each load bus was solved by [9] using an interior point method. An OPF solution with mixed L-index and economic objective was obtained in [10] using particle swarm optimization.…”

Section: Introductionmentioning

confidence: 99%

Convex relaxation of power dispatch for voltage stability improvement

Pedersen

Blanke

Jóhannsson

2015

2015 IEEE Conference on Control Applications (CCA)

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Abstract-A method for enhancing the voltage stability of a power system is presented in this paper. The method is based on a stability-constrained optimal power flow approach, where dispatch is done such that a maximum L-index is minimised for all load busses in a transmission grid. It is shown that optimal dispatch is obtainable with enhanced margins for voltage stability using a semidefinite relaxation of the optimal power flow problem, and that this problem can be formulated as semidefinite program with a quasi-convex objective. Numerical tests are performed on the IEEE-30 bus and BPA systems. The feasibility of the method is demonstrated through demonstrating that improved voltage stability margins are obtained for both systems.

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“…Different authors incorporated these indices in optimal power flow. Authors [9,10] incorporated L-index as a voltage stability constraint to evaluate the effect on cost of generation. In [11], the authors used L index as an objective function for both normal and contingency analysis.…”

Section: Introductionmentioning

confidence: 99%

Utilization of reactive power resources of distributed generation for voltage collapse prevention in optimal power flow

Ampofo¹,

Ai-Hinai²,

Moursi³

2015

2015 International Conference on Solar Energy and Building (ICSoEB)

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Power system planning and operation is progressively becoming a puzzling issue for both transmission and distribution system operators especially with the emergence of distributed generation (DG). Reverse power flows associated with DGs coupled with the increasing load demand will result in excessive line flows. This will reduce the voltage stability margin (VSM). Thus including voltage stability criteria (VSC) and utilizing the reactive power resources of DGs in power system planning network is very crucial. The paper seeks to demonstrate how DGs with reactive power capability can improve Voltage Collapse Proximity indicator (VCPI). VCPI is a preventive voltage collapse control index developed based on static line stability indices. This index is included in a multi objective optimal power flow together with cost of generation as objective functions. Hence satisfying both the economic and security needs of power system planning. The analysis are done for both stressed and contingency situations. IEEE 14 bus test system with shunt capacitor is used.Index Terms-Distributed generation, genetic algorithm, optimal power flow, voltage stability criteria, voltage collapse proximity indicator.

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Development of voltage stability constrained optimal power flow (VSCOPF)

Cited by 23 publications

References 12 publications

An IPM-CFAPSO based Hybrid Method for Multiple Objective Minimizations using TCPS

An IPM-CFAPSO based Hybrid Method for Multiple Objective Minimizations using TCPS

Convex relaxation of power dispatch for voltage stability improvement

Utilization of reactive power resources of distributed generation for voltage collapse prevention in optimal power flow

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