Decentralized model predictive control of voltage source converters for AC frequency containment

Papangelis, Lampros; Debry, Marie-Sophie; Prevost, Thibault; Panciatici, Patrick; Cutsem, Thierry Van

doi:10.1016/j.ijepes.2017.12.015

Cited by 33 publications

(27 citation statements)

References 27 publications

(39 reference statements)

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“…Reliable operation of a power grid relies heavily on maintenance of a balance between power generation and power consumption in the grid. In a general sense, a power imbalance can disrupt the normal operation of a power grid; e.g., by damaging power generators ( [23], p. 13), triggering reaction of transformer relays [28], triggering curtailment of electric loads [29], or causing blackouts in the power grid [24]. To avert the above harmful consequences of power imbalances, two main mechanisms are incorporated in the operation of the power grid to maintain the required balance between power generation and power consumption: 1-energy trading in wholesale electricity markets [30]; and 2-employing reserve generation [31].…”

Section: Power Balancing In Power Gridsmentioning

confidence: 99%

Transactive Energy to Thwart Load Altering Attacks on Power Distribution Systems

Yankson

Ghamkhari

2019

Future Internet

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The automatic generation control mechanism in power generators comes into operation whenever an over-supply or under-supply of energy occurs in the power grid. It has been shown that the automatic generation control mechanism is highly vulnerable to load altering attacks. In this type of attack, the power consumption of multiple electric loads in power distribution systems is remotely altered by cyber attackers in such a way that the automatic generation control mechanism is disrupted and is hindered from performing its pivotal role. The existing literature on load altering attacks has studied implementation, detection, and location identification of these attacks. However, no prior work has ever studied design of an attack-thwarting system that can counter load altering attacks, once they are detected in the power grid. This paper addresses the above shortcoming by proposing an attack-thwarting system for countering load altering attacks. The proposed system is based on provoking real-time adjustment in power consumption of the flexible loads in response to the frequency disturbances caused by the load altering attacks. To make the adjustments in-proportion to the frequency disturbances, the proposed attack-thwarting system uses a transactive energy framework to establish a coordination between the flexible loads and the power grid operator.

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Section: Power Balancing In Power Gridsmentioning

confidence: 99%

Transactive Energy to Thwart Load Altering Attacks on Power Distribution Systems

Yankson

Ghamkhari

2019

Future Internet

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“…The behavior of these controllers can be optimized by means of Model Predictive Control (MPC), an optimizationbased discrete time control scheme which has the possibility of incorporating operational constraints in the problem formulation while computing optimal control inputs based on state-space predictions [9]. Instead of adaptively adjusting the controller gains, the controller performance can be improved by altering the converter setpoints in response to a disturbance [10]- [12]. The work in [12] and [13] developed MPC-based controllers to improve the post-disturbance system behavior.…”

Section: Introductionmentioning

confidence: 99%

“…Although the designed controllers have proven beneficial, the system representation was oversimplified by capturing only the swing equation dynamics and neglecting the specificity of converter-based generation. The aforementioned problems were partially addressed in [10] with an MPC-based frequency support through HVDC grids, where a decentralized MPC control scheme adapts the VSC output if constraint violations are detected or expected. This approach requires global information of grid topology and HVDC converter locations to calculate sensitivity factors corresponding to the DC-voltage droop and uses a simple frequency prediction model.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced MPC for Fast Frequency Control in Inverter-Dominated Power Systems

Stanojev

Markovic

Vrettos³

et al. 2020

2020 International Conference on Smart Energy Systems and Technologies (SEST)

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Due to the rising shares of renewable energy sources, future power systems are facing significant changes in control complexity and system inertia, thus making frequency regulation in power systems more challenging. This paper proposes a novel control scheme based on model predictive control for gridforming Voltage Source Converters (VSCs), with the goal of exploiting their fast response capabilities and available DC-side energy storage to provide fast frequency control service to the system. An observer based on support vector machine regression detects and estimates system disturbances using only locally available measurements at each VSC. Frequency evolution is then anticipated through state-space predictions and the VSC power output is adjusted to compensate the disturbance and prevent frequency threshold violations. The proposed control scheme is evaluated and its effectiveness demonstrated through detailed time-domain simulations of the IEEE 39-bus test system.

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“…Model predictive controller is used for islanded AC micro grids and in that case it is based on hierarchical control scheme which is applied to address power quality and unequal power sharing problems. Also it can used for AC frequency containment [16][17]. Also it is used for electrical heating systems [18].…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Control for load frequency stabilizer

Ahmed

Rashwan

Abdel-Moamen

2019

ERJ. Engineering Research Journal

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This paper deals with the importance of load frequency control (LFC) for single and interconnected power system. It is important to keep the frequency of the system and the inter area tie power stable. The goal of LFC is to maintain the frequency, the desired power output and to control the change in tie line power between control areas in an interconnected power system. Two different techniques have been implemented in this paper which are model predictive controller MPC and conventional proportional plus integral controller PI for LFC of single area power system as well as two area system. To investigate the powerful and robustness of model predictive control (MPC) technique for LFC problems in electric power system, time simulations is performed. The obtained results indicate that the MPC provide better damping to the single area system as well as two-area system in case of load disturbance compared with conventional PI controller. The studied single-area and two-area systems are modelled and simulated using Simulink/Matlab software.

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Decentralized model predictive control of voltage source converters for AC frequency containment

Cited by 33 publications

References 27 publications

Transactive Energy to Thwart Load Altering Attacks on Power Distribution Systems

Transactive Energy to Thwart Load Altering Attacks on Power Distribution Systems

Enhanced MPC for Fast Frequency Control in Inverter-Dominated Power Systems

Model Predictive Control for load frequency stabilizer

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