A FDI Attack-Resilient Distributed Secondary Control Strategy for Islanded Microgrids

Chen, Yulin; Qi, Donglian; Dong, Hangning; Li, Chaoyong; Li, Zhenming; Zhang, Jianliang

doi:10.1109/tsg.2020.3047949

Cited by 99 publications

(64 citation statements)

References 30 publications

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“…Obviously, the active power also satisfies the physical state constraint P i ∈ [14,27]. At 0-2 s, the droop control is adopted.…”

Section: Optimal Active Power Allocationmentioning

confidence: 99%

“…The earliest method to deal with this problem is droop control, but due to the droop coefficient, there is always a certain deviation in the process of voltage and frequency regulation [10,11]. Therefore, on this basis, centralized [12], decentralized [13] and distributed [14] secondary control ideas are put forward, through the secondary control signal to adjust the voltage and frequency deviation. The idea of distributed secondary control mainly comes from distributed multiagent system [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Self-Triggered Model Predictive Control of AC Microgrids with Physical and Communication State Constraints

Dong

Gan

et al. 2022

Energies

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In this paper, we investigate the secondary control problems of AC microgrids with physical states (i.e., voltage, frequency and power, etc.) constrained in the process of actual control, namely, under the condition of state constraint. On the basis of the primary control (i.e., droop control), the control signals generated by distributed secondary control algorithm are used to solve the problems of voltage and frequency recovery and power allocation for each distributed generators (DGs). Therefore, the model predictive control (MPC) with the mechanism of rolling optimization is adopted in the second control layer to achieve the above control objectives and solve the physical state constraint problem at the same time. Meanwhile, in order to reduce the communication cost, we designed the self-triggered control based on the prediction mechanism of MPC. In addition, the proposed algorithm of self-triggered MPC does not need sampling and detection at any time, thus avoiding the design of observer and reducing the control complexity. In addition, the Zeno behavior is excluded through detailed analysis. Furthermore, the stability of the algorithm is verified by theoretical derivation of Lyapunov. Finally, the effectiveness of the algorithm is proved by simulation.

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“…Obviously, the active power also satisfies the physical state constraint P i ∈ [14,27]. At 0-2 s, the droop control is adopted.…”

Section: Optimal Active Power Allocationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self-Triggered Model Predictive Control of AC Microgrids with Physical and Communication State Constraints

Dong

Gan

et al. 2022

Energies

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“…5 transforms the square wave signal with only (+1) and (-1) amplitudes to a triangular signal. The Fourier series of this triangular signal is given in (11):…”

Section: Conditions For Successful Attacksmentioning

confidence: 99%

“…The maximum peak value of u attack , u pk,max attack = 4k s /πω attack as indicated in (11), is a function of the integrator gain k s and the frequency of the attack signal ω attack . As such, the only parameter that can be controlled by the attacker in ( 9)-( 11) to implement a successful attack is the frequency or time period, i.e., T attack = 2π/ω attack , of the falsified synchronizing signal.…”

Section: Conditions For Successful Attacksmentioning

confidence: 99%

False Data Injection Attacks Against Synchronization Systems in Microgrids

Mohamed

Arani

Jahromi

et al. 2021

IEEE Trans. Smart Grid

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Synchronization systems play a vital role in the day-to-day operation of power systems and their restoration after cascading failures. Hence, their resilience to cyberattacks is imperative. In this paper, we demonstrate that a well-planned false data injection attack against the synchronization system of a generator is capable of causing tripping subsequently leading to instability and blackout. We present an analytical framework behind the design and implementation of the proposed cyberattack. Moreover, we derive and discuss the conditions for which a cyberattack interfering with a synchronizing signal can be successful. Effective physical mitigation strategies are then proposed to improve the cyber-resilience of synchronization systems. The proposed cyberattack model and mitigation strategies are verified for a microgrid test system using an OPAL-RT real-time simulator.

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“…However, the droop control is a differential regulation, which will cause the deviation of system frequency and voltage, resulting in the degradation of power quality. Therefore, secondary control is required to correct the voltage and frequency of the system [6]. Its purpose is to recover the system voltage and frequency to nominal values and to distribute power accuratly.…”

Section: Introductionmentioning

confidence: 99%

A novel distributed secondary voltage control method for AC microgrids based on voltage observer

Liu

Tang

Jing

et al. 2022

J. Phys.: Conf. Ser.

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Since the islanded AC Microgrid is affected by the impedance of line, it is difficult to coordinate the voltage regulation and reactive load distribution. A distributed secondary voltage controller based on observer is proposed for isolated AC Microgrids, and it does not need more voltage communications. This method can guarantee the estimated average voltage equals to average of actual output voltages that can converge to the nominal values, and realize accurate proportional load sharing in a microgrid. Then, the convergence of the voltage observer is proved. Finally, the proposed control method is verified by time-domain simulation.

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A FDI Attack-Resilient Distributed Secondary Control Strategy for Islanded Microgrids

Cited by 99 publications

References 30 publications

Self-Triggered Model Predictive Control of AC Microgrids with Physical and Communication State Constraints

Self-Triggered Model Predictive Control of AC Microgrids with Physical and Communication State Constraints

False Data Injection Attacks Against Synchronization Systems in Microgrids

A novel distributed secondary voltage control method for AC microgrids based on voltage observer

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