Voltage and active power local PI control of distributed energy resources based on the effective transfer function method

Fusco, Giuseppe; Russo, Mario; Casolino, Giovanni Mercurio

doi:10.1016/j.ijepes.2023.109264

Cited by 4 publications

(4 citation statements)

References 33 publications

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“…The design of the DER control in Section 3 assumes the ADN model presented in [31], which is briefly recalled hereafter. The model is composed of the combination of the DER models and of the distribution grid model, which includes the passive distribution network, the supplying MV system, and the substation transformer.…”

Section: Adn Modelmentioning

confidence: 99%

“…where the operator ⊗ denotes element-by-element multiplication or the Schur product and P(0) is the matrix that represents the steady-state (ω = 0) model. From the analysis of the RGA matrix, paper [31] has shown that the external interaction exists only between the voltage control loops. That is, the regulation of v i is affected by the regulation of all other (ℓ − 1) voltages and vice versa.…”

Section: Der Interaction Analysismentioning

confidence: 99%

“…To show the applicability of the proposed control, a larger distribution network (0.4 kV-50 Hz) is considered, see [31]: it has three feeders, thirty-six nodes and nine DERs connected. Each DER presents the same size and characteristics as the ones described in the previous subsection for the first test system.…”

Section: Second Test System: Adn With Three Feeders and Nine Dersmentioning

confidence: 99%

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Local DER Control with Reduced Loop Interactions in Active Distribution Networks

Fusco,

Russo

2024

Energies

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Active Distribution Networks are Multi-Input Multi-Output (MIMO) systems with coupled dynamics, which cause interactions among the control loops of Distributed Energy Resources (DERs). This undesired effect leads to performance degradation of voltage control. To mitigate the effects of this unavoidable coupling, the present paper proposes a systematic design procedure based on the analysis of the interaction’s sources. In detail, each DER is equipped with a double-loop PI to control the active and reactive power output of the voltage source converter, which connects the DER to the network’s node. Furthermore, to guarantee ancillary services, the two loops are coupled by a simple mechanism of cooperation of the active power to voltage regulation realized by a filtered droop law. To achieve voltage regulation with reduced loop interactions, the PI parameters and the filter’s pulse are designed according to a procedure with two sequential steps based on the Internal Model Control (IMC) technique. Simulation studies are finally presented to demonstrate that the proposed design method achieves both reduction of the loop interaction and robust voltage control in the presence of model parameter uncertainty in the MIMO plant, modeling various operating conditions of the ADN, including a step connection of large loads, renewable energy source variations, and changes in the substation transformer ratio.

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Section: Adn Modelmentioning

confidence: 99%

Section: Der Interaction Analysismentioning

confidence: 99%

Section: Second Test System: Adn With Three Feeders and Nine Dersmentioning

confidence: 99%

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Local DER Control with Reduced Loop Interactions in Active Distribution Networks

Fusco,

Russo

2024

Energies

Self Cite

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“…To assess the control performance achieved by the proposed method, the LV ADN depicted in Figure 2 whose parameters are taken from [47] is considered to be a test system. The penetration of the DERs is large: there are 9 nodes out of 34 total nodes equipped with a DER.…”

Section: Simulation Studiesmentioning

confidence: 99%

Applying the Integral Controllability Property in a Multi-Loop Control for Stable Voltage Regulation in an Active Distribution Network

Fusco,

Russo

2024

Energies

Self Cite

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Distributed Energies Resources (DERs) can be controlled for supporting the voltage regulation at nodes of an Active Distribution Network (ADN) where they are connected. However, since the ADN is a Multi-Input Multi-Output (MIMO) system with coupled dynamics, the controller of a DER mutually interacts with all other controllers through the distribution lines. These interactions lead to operating conflicts which may drive the ADN to work close to its voltage stability boundaries. To achieve a stable voltage regulation without new investment in the existing ADNs, the present paper proposes a straightforward decentralized design of the multi-loop controllers based on the property of integral controllability. The main feature of the method is that the design problem can be expressed by a single parameter designed both for reducing the effects of the undesired coupling and for increasing the degree of robust stability in the presence of parameter uncertainty in the matrix plant. Simulation studies are developed to illustrate the design result and the performance achieved under different operating conditions. The performance is also compared with the one obtained by another method in terms of the integral absolute error.

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A Robust V2G Voltage Control Scheme for Distribution Networks Against Cyber Attacks and Customer Interruptions

An,

Yi,

Xing

et al. 2024

IEEE Trans. Smart Grid

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Voltage and active power local PI control of distributed energy resources based on the effective transfer function method

Cited by 4 publications

References 33 publications

Local DER Control with Reduced Loop Interactions in Active Distribution Networks

Local DER Control with Reduced Loop Interactions in Active Distribution Networks

Applying the Integral Controllability Property in a Multi-Loop Control for Stable Voltage Regulation in an Active Distribution Network

A Robust V2G Voltage Control Scheme for Distribution Networks Against Cyber Attacks and Customer Interruptions

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