Robust Power System Frequency Control

Bevrani, Hassan

doi:10.1007/978-0-387-84878-5

Cited by 866 publications

(574 citation statements)

References 91 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]. Due to load and generation changes as well as model imperfections, a proportional frequency controller cannot reach the desired reference frequency in general.…”

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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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%

Distributed vs. centralized power systems frequency control

Andreasson

Dimarogonas

Johansson

et al. 2013

2013 European Control Conference (ECC)

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“…Due to large scale of most power systems, the design and implementation of decentralized controllers are preferable. The state space model of each area is given in (1).…”

Section: Power System Lfc Dynamicmentioning

confidence: 99%

“…Typically, communication time delay in the WAMS data communication is in the order of 100ms which can reach 250ms at the worst case [16]. In traditional communication systems, the time delay can increase to several seconds [1].…”

Section: Power System Lfc Dynamicmentioning

confidence: 99%

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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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“…The reason is that disturbances related to the electrical utility are mostly of a transient nature, caused by power imbalances in the grid which lead to momentary frequency and voltage instabilities [11]. A transient disturbance is defined in this paper as a sudden and short-lived deviation of a measurement from its previous and subsequent trend.…”

Section: Introductionmentioning

confidence: 99%