Recent Philosophies of Automatic Generation Control Strategies in Power Systems

Ibraheem,; Kumar, Prem; Kothari, D.P.

doi:10.1109/tpwrs.2004.840438

Cited by 702 publications

(256 citation statements)

References 157 publications

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“…One important class of largescale systems are electrical power systems, which employ automatic generation control (AGC) [1], [2] and frequency controllers [3], [4]. The frequency controllers are mainly centralized [5], [3], however some efforts towards distributed control of power system frequencies have been made [6].…”

Section: Introductionmentioning

confidence: 99%

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Distributed vs. centralized power systems frequency control

Andreasson

Dimarogonas

Johansson

et al. 2013

2013 European Control Conference (ECC)

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Abstract-This paper considers a distributed control algorithm for frequency control of electrical power systems. We propose a distributed controller which retains the reference frequency of the buses under unknown load changes, while asymptotically minimizing a quadratic cost of power generation. For comparison, we also propose a centralized controller which also retains the reference frequency while minimizing the same cost of power generation. We derive sufficient stability criteria for the parameters of both controllers. The controllers are evaluated by simulation on the IEEE 30 bus test network, where their performance is compared.

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Section: Introductionmentioning

confidence: 99%

“…The 2 nd author is also affiliated with the Centre for Autonomous Systems at KTH and is supported by the VR 2009-3948 grant. 2 Corresponding author. E-mail: mandreas@kth.se…”

Section: Introductionmentioning

confidence: 99%

Distributed vs. centralized power systems frequency control

Andreasson

Dimarogonas

Johansson

et al. 2013

2013 European Control Conference (ECC)

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“…In addition, due to the participation of many units in LFC task, the power system LFC is a multivariable control problem. Furthermore, generation rate constraints (GRC's) have major effects on the dynamic of power system LFC [3]. These features make load frequency control a time delayed, constrained, multivariable and multi-objective control problem.…”

Section: Introductionmentioning

confidence: 99%

Multivariable predictive control considering time delay for load-frequency control in multi-area power systems

Daniar

Shiroei

Aazami

2016

Archives of Control Sciences

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In this paper, a multivariable model based predictive control (MPC) is proposed for the solution of load frequency control (LFC) in a multi-area interconnected power system. The proposed controller is designed to consider time delay, generation rate constraint and multivariable nature of the LFC system, simultaneously. A new formulation of the MPC is presented to compensate time delay. The generation rate constraint is considered by employing a constrained MPC and economic allocation of the generation is further guaranteed by an innovative modification in the predictive control objective function. The effectiveness of proposed scheme is verified through time-based simulations on the standard 39-bus test system and the responses are then compared with the proportional-integral controller. The evaluation of the results reveals that the proposed control scheme offers satisfactory performance with fast responses.

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“…LFC is one of the most important and recent topics of research in interconnected power systems [5]. The generators in a control area always vary their speed together (speed up or slow down) for maintaining the frequency and the relative power angles to the predefined values with tolerance limit in both static and dynamic conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the dynamic nature of the load, continuous load change cannot be avoided but the system frequency can be kept within sufficiently small tolerance levels by adjusting the generation continuously. A good LFC system maintains the control area frequency and tie line power at their nominal and scheduled values [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Load Frequency Control of Two-Area Smart Grid

Saiteja¹,

Krishnarayalu²

2015

IJCA

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Nowadays electrical load demand is increasing day by day. Conventional grids alone cannot meet the increasing load demands as their generation is limited by natural resources like coal, water etc. This results in frequency problems. Even the existing Load Frequency Controllers may not solve this problem. This resulted in Smart Grids with renewable generation like wind, solar etc. and plug-in hybrid electric vehicle (PHEV) which can supply the increased load demand from different energy sources. Smart grids are a reality which require good controllers. Hence different controllers like Ziegler-Nichols tuned PID,PSO tuned PID, MATLAB tuned PID and ADRC controllers are tested for a two-area smart grid with PHEV and wind generation through simulations.

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Recent Philosophies of Automatic Generation Control Strategies in Power Systems

Cited by 702 publications

References 157 publications

Distributed vs. centralized power systems frequency control

Distributed vs. centralized power systems frequency control

Multivariable predictive control considering time delay for load-frequency control in multi-area power systems

Load Frequency Control of Two-Area Smart Grid

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