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Energies, 2021 The main emphasis in the operation of an electricity system is placed on its safe and reliable operation. The flow of reactive power in a network can affect voltage conditions in individual nodes of the transmission system.
Matej Tazky +2 more
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Direct calculation of reactive power limit points
International Journal of Electrical Power & Energy Systems, 1996 A knowledge of points where sources of reactive power encounter limits is useful in determining the vulnerability of a power system to voltage collapse. This paper proposes a predictor/corrector technique which quickly and robustly finds such points.
I.A. Hiskens, B.B. Chakrabarti
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IEEE Access, 2019 Wind speed fluctuations are extremely easy to cause the voltage change frequently. The existing voltage control methods are lacking in adjustment range and response speed.
Jinxin Ouyang +3 more
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Optimal Reactive Power Flow for Large-Scale Power Systems Using an Effective Metaheuristic Algorithm
Journal of Electrical and Computer Engineering, 2020 In this paper, stochastic fractal search method (SFS) is employed for solving the optimal reactive power flow (ORPF) problem with a target of optimizing total active power losses (TPL), voltage deviation (VD), and voltage stability index (VSI). SFS is an
Thanh Long Duong +3 more
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Fast Local Voltage Control Under Limited Reactive Power: Optimality and Stability Analysis [PDF]
IEEE Transactions on Power Systems, 2016 High penetration of distributed energy resources presents several challenges and opportunities for voltage regulation in power distribution systems. A local reactive power (VAR) control framework will be developed that can fast respond to voltage mismatch and address the robustness issues of (de-)centralized approaches against communication delays and ...
Zhu, Hao, Liu, Hao Jan
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Impact on Generator Reactive Power Limits on a Static Voltage Stability
Advances in Electrical and Computer Engineering, 2011 Voltage stability margin in a power system is closely related with the availability of reactive power in the system. Therefore, adequate modeling of the reactive power sources becomes an important issue in this type of studies.
TOVAR-GONZALEZ, E. A. +1 more
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Simulation of reactive power regulation of DFIG [PDF]
E3S Web of Conferences, 2021 Doubly fed induction generator (DFIG) wind power generation system is widely used in wind farm all over the world. Reactive power can be generated both in grid-side converter and generator-side converter of DFIG.
Zhu Yingfeng +5 more
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Algorithm of reactive power dispatching "per generator" realization on TPP Nikola Tesla A [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2022 The algorithm of reactive power dispatching "per generator" realization is presented in the paper. Dispatching "per generator" and "per grid" are two modes of reactive power dispatching used by coordinated reactive power and voltage regulator (GRRS ...
Pavlović Jelena +5 more
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Photovoltaic reactive power limits [PDF]
2013 12th International Conference on Environment and Electrical Engineering, 2013 Today, Photovoltaic (PV) inverters are working with very small values of reactive power. Then, the Power Factor (PF) is very close to the unit. So, the PV installations only inject active power into the grid. This paper aims to investigate the limits of reactive power capacity in PV generators.
Albarracín Sánchez, Ricardo +1 more
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EVALUATION OF EFFECT OF REACTIVE POWER CONTROL STRATEGY BASED ON VOLTAGE TERMINAL OF GENERATORS ON LIMIT INDUCED BIFURCATION AND DYNAMIC VOLTAGE STABILITY MARGIN [PDF]
مجله مدل سازی در مهندسی, 2013 Reactive power limit of power system generators has a significant effect on the static voltage stability margin such as maximum load ability point and dynamic voltage stability margin such as HB, LIB and SNB.
M.H. Velayati, N. Amjady, I. Khajevandi
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