Fast approach for voltage stability constrained optimal power flow based on load impedance modulus margin

Luo, Diansheng; Cao, Xiangkui; He, Han; Lu, Tianguang

doi:10.1109/ias.2017.8101702

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…e minimum load increase for system instability was considered in terms of the voltage stability margin (VSM), which was used as the constraint for the OPF problem when rescheduling the generation and adjusting the contact transactions for an independent system operator (ISO) [25]. Load impedance modulus margin (LIMM) was employed for the first time for VSC-OPF as a complementary voltage stability constraint [26]. A minimum singular value (MSV) was developed into VSC-OPF model based on semidefinite programming (SDP) relaxation [27].…”

Section: Introductionmentioning

confidence: 99%

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

Thasnas

Siritaratiwat

2019

Journal of Electrical and Computer Engineering

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Nowadays, the changes of economic, environment, and regulations are forcing the electric utilities to operate systems at maximum capacity. Therefore, the operation and control of power system to improve the system stability has been receiving a great deal of attention. This paper presents an approach for enhancing the static voltage stability margin and reducing the power losses of the system with voltage security-constrained optimal power flow (VSC-OPF) that is based on static line voltage stability indices. The control approaches incorporate the voltage stability criteria into the conventional OPF. The minimization of the summation of fast voltage stability index (FVSI), line stability index (Lmn), and line voltage stability index (LVSI) is used as the objective functions. The performance and effectiveness of the proposed control approaches are evaluated on the standard IEEE 30-bus, 57-bus, and 118-bus test systems under normal and contingency conditions. The comparison analysis is carried out with different cases including minimization of generation cost. The proposed control approaches indicate the promising results and offer efficient countermeasures against the voltage instability of the system.

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Section: Introductionmentioning

confidence: 99%

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

Thasnas

Siritaratiwat

2019

Journal of Electrical and Computer Engineering

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“…These indices have been applied to an objective function of VSCOPF, and the solutions have been compared [11]. The load impedance modulus margin (LIMM) has been applied to a constraint of VSCOPF [12] and is based on the differential of Thevenin equivalent circuit impedance and load equivalent impedance. The LIMM becomes close to zero when the calculated point is near SNB.…”

Section: Introductionmentioning

confidence: 99%

Robust calculation method of voltage stability margin based on voltage‐collapse‐point properties

Omi

Shirai

2021

IEEJ Transactions Elec Engng

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The progress in electricity deregulation has made electricity systems more economical while maintaining stability. Therefore, the stability of an electricity system should be evaluated more strictly than done previously. We propose a robust calculation method of voltage stability margin (VSM). The proposed method is based on the optimal‐power‐flow‐based direct method (OPF‐DM), which can calculate VSM directly when complementarity constraints related to limits for reactive‐power generation are added. However, the additional complementarity constraints may cause a convergence and local solution issues because of the numerical complexity. The proposed method calculates the appropriate VSM on the basis of several voltage‐stability properties. We implemented the proposed method on MATPOWER and evaluated it with IEEE 9‐bus, 30‐bus system, 39‐bus, 300‐bus, PEGASE 1354‐bus, and IEEJ WEST10‐O/V systems. The results indicate that the proposed method can calculate VSM robustly compared with conventional methods. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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Voltage Stability Constrained Optimal Power Flow Study Based on P-Index

Pranami¹,

Pandya²

2019

2019 IEEE International Conference on Intelligent Techniques in Control, Optimization and Signal Processing (INCOS)

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Fast approach for voltage stability constrained optimal power flow based on load impedance modulus margin

Cited by 3 publications

References 18 publications

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

Robust calculation method of voltage stability margin based on voltage‐collapse‐point properties

Voltage Stability Constrained Optimal Power Flow Study Based on P-Index

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