A Coordinated Droop Control Strategy for Overvoltage Mitigation in Active Distribution Networks

Kryonidis, Georgios C.; Kontis, Eleftherios O.; Chrysochos, Andreas I.; Demoulias, Charis S.; Papagiannis, Grigoris K.

doi:10.1109/tsg.2017.2685686

Cited by 53 publications

(32 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the proposed procedure, in the first step, the overall system model P(s) = Θ G(s) (see (5)) was determined. To this aim, the matrix Θ in (3) was evaluated by using the linear method in [28].…”

Section: Design Of the Voltage Droop Controllersmentioning

confidence: 99%

“…DG reactive power is the first resource to be used for voltage support and overvoltage containment. In fact, as an alternative, active power curtailment [4][5][6] can be used, which has a significant impact on the voltage profile due to the high R/X ratio of distribution lines [7]. However, it has negative impacts on the DG economic revenues and on the environment, reducing the exploitation of renewable energy sources.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Procedure to Determine the Droop Constants of Voltage Controllers Coping with Multiple DG Interactions in Active Distribution Systems

Fusco

Russo

2020

Energies

View full text Add to dashboard Cite

In modern distribution systems, the presence of an increasing amount of Distributed Generation (DG) systems causes over-/under-voltage problems, due to the reverse power flows.To face these problems, the voltage-reactive power droop controllers of DG systems are commonly used for their simplicity and are required by international standards. On the other hand, the interaction among voltage droop controllers of different DG systems may introduce instability. The paper presents an effective procedure to determine the droop constants of voltage-reactive power controllers for multiple DG systems. Firstly, a multi-input multi-output model of the distribution system is introduced. Then, using the concept of the interaction measure under decentralized control, a simple constraint is added to the single-input single-output design of each droop controller. Such a constraint guarantees stability with respect to the interaction among the voltage droop controllers of all the DG systems. Eventually, the proposed procedure is applied to an LV test system with 24 nodes and six photovoltaic systems; the results of numerical simulations are presented, giving evidence of the effectiveness of the proposed procedure in various operating conditions of the distribution system.

show abstract

Section: Design Of the Voltage Droop Controllersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Procedure to Determine the Droop Constants of Voltage Controllers Coping with Multiple DG Interactions in Active Distribution Systems

Fusco

Russo

2020

Energies

View full text Add to dashboard Cite

show abstract

“…As shown in Fig. 4, a 380 V LVDN, which is modified from [45], is used for tests. The network contains a transformer and 21 physical nodes.…”

Section: Case Studymentioning

confidence: 99%

Collaborative configuration for distributed energy storages and cyber systems in low‐voltage distribution networks with high penetration of PV systems

Cai

Tang

Zhang

2018

IET cyber-phys. syst.

View full text Add to dashboard Cite

“…In recent literature, many works (e.g., [2][3][4][5]) have shown the potential of using AC Optimal Power Flow (OPF), a widely-known mathematical optimization problem, to calculate optimal setpoints for controllable devices in constrained distribution networks. There are also efforts in tailoring the OPF for specific scenarios, such as dealing with the uncertainty in renewable resources [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

On the Implementation of OPF-Based Setpoints for Active Distribution Networks

Liu

Ochoa

Low

2021

IEEE Trans. Smart Grid

View full text Add to dashboard Cite

In the context of active distribution networks, AC Optimal Power Flow (OPF) has shown great potential to calculate setpoints for controllable devices. Although considerable literature exists, temporal aspects that may affect the actual execution of these setpoints are rarely investigated. Due to the diverse operating characteristics of controllable devices (i.e., delays, ramp rates and deadbands), when these setpoints are executed by multiple devices without adequate considerations, the resulting outcome can differ drastically from what is expected; leading to violations of network constraints and excessive control actions. Therefore, this work proposes a series of necessary adaptations within the controllers of existing devices as well as in the OPF formulation to cater for the diversity in operating characteristics, ensuring that calculated setpoints are adequately implemented by controllable devices. This involves the direct control of conventional devices and enforcing a new ramping behavior for inverter-interfaced devices. Furthermore, a linear, mixedinteger formulation is proposed to handle discrete devices and improve scalability in large networks. Co-simulation results (using a UK test network with the objective of maximizing renewable energy production and considering 1s time-step) demonstrate that, by catering for the operating characteristics of controllable devices, the expected outcome from OPF-based setpoints can be achieved. Index Terms-Active distribution network, distributed generation, optimal power flow (OPF), implementation NOMENCLATURE Sets DG plants. Buses/nodes. Phases (electrical). ⊂ Sources. Lines. OLTC-fitted transformers. Π Tap positions of OLTCs. Constants/Parameters ̅ Rated capacity of DG plants.

show abstract

A Coordinated Droop Control Strategy for Overvoltage Mitigation in Active Distribution Networks

Cited by 53 publications

References 33 publications

A Procedure to Determine the Droop Constants of Voltage Controllers Coping with Multiple DG Interactions in Active Distribution Systems

A Procedure to Determine the Droop Constants of Voltage Controllers Coping with Multiple DG Interactions in Active Distribution Systems

Collaborative configuration for distributed energy storages and cyber systems in low‐voltage distribution networks with high penetration of PV systems

On the Implementation of OPF-Based Setpoints for Active Distribution Networks

Contact Info

Product

Resources

About