Alternating Optimization Approach for Voltage-Secure Multi-Period Optimal Reactive Power Dispatch

Ibrahim, Tamer; Rubira, Tomás Tinoco De; Rosso, Alberto Del; Patel, Mahendra; Guggilam, Swaroop S.; Mohamed, Ahmed

doi:10.1109/tpwrs.2021.3133358

Cited by 14 publications

(3 citation statements)

References 35 publications

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“…Such a decision-making problem can be generally termed as power system dispatch. It is a very traditional problem in power system, which can be traced back to the 1960s for the first proposal of optimal power flow [7] . During the past decades, we have observed a great variety of subproblems originating from the basic dispatch concept, including reactive dispatch problem [8,9] , unit commitment problem [10,11] , economic dispatch problem [12,13] , security-constrained economic dispatch problem [14,15] , market clearing problem [16,17] , storage optimization problem [18,19] , stochastic optimization problem [20][21][22] , etc.…”

Section: Proportion Of Electric Power (%)mentioning

confidence: 99%

Revisit power system dispatch: Concepts, models, and solutions

Yang

Yong

Xiang

2023

iEnergy

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Power system dispatch is a general concept with a wide range of applications. It is a special category of optimization problems that determine the operation pattern of the power system, resulting in a huge influence on the power system security, efficiency, and economics. In this paper, the power system dispatch problem is revisited from the basis. This paper provides a categorization of the dispatch problem, especially with an emphasis on industrial applications. Then, this paper presents a detailed review of the dispatch models. The common formulations of the dispatch problem are provided. Finally, this paper discusses the solutions of the dispatch problem and lists the major challenges.

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Section: Proportion Of Electric Power (%)mentioning

confidence: 99%

Revisit power system dispatch: Concepts, models, and solutions

Yang

Yong

Xiang

2023

iEnergy

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“…The output of reactive power of the DFIG is Q, which is composed of the reactive power Q s on the stator side and the reactive power Q c from the converter on the grid side (Ibrahim et al, 2022). The operating range of the stator side reactive power of a doubly-fed induction generator is mainly limited by the current of the rotor side converter.…”

Section: The Mechanism Of Reactive Power Reserves Of Dfig For Control...mentioning

confidence: 99%

“…In (Mugemanyi et al, 2020), the chaotic bat algorithm is applied to solve the optimal reactive power dispatch problem taking into account small-scale, mediumscale and large-scale power systems. In (Ibrahim et al, 2022), a voltage secure multi-period optimal reactive power dispatch problem has been formulated and OPTALG and GridOpt have been used to solve the optimization problem.…”

Section: Introductionmentioning

confidence: 99%

Coordinated voltage control for improved power system voltage stability by incorporating the reactive power reserve from wind farms

Liu

Song²,

Jiang³

et al. 2023

Front. Energy Res.

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The absorption and output characteristics of reactive power of the doubly-fed induction generator (DFIG) greatly influence the voltage stability of PCC (Point of Common Coupling) where the wind farms are integrated into the bulk power grid. This study proposes a reactive power compensation strategy for coordinated voltage control (CVC) of PCC with large-scale wind farms to achieve the expected voltage quality of the power grid through a minimum amount of control actions in emergencies. To this end, the mechanism of reactive power and voltage control inside DFIG is first analyzed. Then, the concept of reactive power reserve (RPR) sensitivity concerning control actions is introduced and an index of voltage stability margin is proposed to evaluate and analyze the distance between the current operating point and the voltage collapse point by analyzing the relationship between reactive power reserve and voltage stability margin. In the event of an emergency, critical reactive power reserves are obtained to reduce the dimension and complexity of the control problem. The sensitivity of reactive power reserve and the control are formulated into a convex quadratic programming problem to optimize the control strategies for voltage stability. The proposed technology has been validated on the IEEE 39-bus system.

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Energy Efficient Voltage Scheduling Based Algorithm for Power Factor Maximization in Smart Grid Networks

Madhavrao Deshmukh

2024

E3S Web of Conf.

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The problem of voltage scheduling in smart grids has been well studied. There exist number of approaches around the problem which would consider the residual voltage as the major key. The existing approaches suffer to achieve higher performance in voltage scheduling in smart grids. To handle this issue, an Energy Efficient Voltage Scheduling (EEVS) model is presented in this article. The proposed method considers residual energy, average power generation, average voltage supplied as the factors in the selection of grid towards scheduling. The method performs scheduling by computing the voltage scheduling factor (VSF). The method identifies the set of grids available and for any power requirement; the method computes the VSF value for various grids and based on that a suitable grid has been identified to support the power requirement. It has been performed at each time interval and the grids which are supporting in the current and previous cycles are neglected from the selection. The proposed EEVS model introduces higher scheduling performance and power factor maximization performance.

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Alternating Optimization Approach for Voltage-Secure Multi-Period Optimal Reactive Power Dispatch

Cited by 14 publications

References 35 publications

Revisit power system dispatch: Concepts, models, and solutions

Revisit power system dispatch: Concepts, models, and solutions

Coordinated voltage control for improved power system voltage stability by incorporating the reactive power reserve from wind farms

Energy Efficient Voltage Scheduling Based Algorithm for Power Factor Maximization in Smart Grid Networks

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