Overvoltage Prevention and Curtailment Reduction Using Adaptive Droop-Based Supplementary Control in Smart Inverters

Maharjan, Manisha; Tamrakar, Ujjwol; Ni, Zhen; Tonkoski, Reinaldo

doi:10.3390/app11177900

Cited by 5 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, V target is V f . Subsequent required PV system injection is determined using ( 6) and (8).…”

Section: %Vuf =mentioning

confidence: 99%

“…With active power curtailment, once the voltage reaches the preliminary limit, the active power generated by the DG system would be curtailed so that the voltage at the point of common coupling (PCC) stays within statutory limits. This is especially true in cases where PV systems are oversized to gain the maximum benefit of installation [8]. This method requires minimal modification of the control logic of PV inverters, hence making it very attractive [4].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Integrated Volt/Var Control Method for Voltage Regulation and Voltage Unbalance Reduction in Active Distribution Networks

2022

View full text Add to dashboard Cite

The emergence of distributed generation such as solar systems has introduced new challenges in distribution networks that are becoming more apparent with increasing penetration levels. The time mismatch between peak load and peak generation can make voltage levels in distribution networks swing towards extreme limits during a day. Distribution network service providers are struggling to cater for new distributed generation installations while ensuring that the quality of steady state supply voltage meets stipulated requirements. The segregation between medium and low voltage networks in control strategies may result in unnecessary or worse, opposing control actions leading to voltage issues and control on one side of the distribution network influencing the other. By developing an efficient volt/var control method, the steady state voltage level and voltage unbalance in a comprehensive distribution network can be controlled simultaneously. This paper analyses voltage issues and volt/var control in medium and low voltage networks as a whole, unabridged problem. This paper proposes a pragmatic and effective volt/var control method that addresses voltage regulation and voltage unbalance simultaneously using existing infrastructure. The proposed control method is implemented on three types of representative Australian distribution networks and results obtained demonstrate that the proposed volt/var control can simultaneously manage voltage level and voltage unbalance whilst reducing the number of tap change operations and maximizing solar penetration.

show abstract

“…In this case, V target is V f . Subsequent required PV system injection is determined using ( 6) and (8).…”

Section: %Vuf =mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integrated Volt/Var Control Method for Voltage Regulation and Voltage Unbalance Reduction in Active Distribution Networks

2022

View full text Add to dashboard Cite

show abstract

“…This involves solving a large-scale optimisation problem that considers multiple nonlinear operational constraints and objectives, making it computationally expensive [2]. In [3], the authors propose an active power curtailment technique with different types of droop-based methods and a dynamic programming method to minimise power curtailment. Authors in [4] discuss the potential of smart inverters (SIs) to mitigate voltage and frequency deviations using active power curtailment, volt-watt control, and frequency-watt control.…”

Section: Introductionmentioning

confidence: 99%

Fair Reinforcement Learning Algorithm for PV Active Control in LV Distribution Networks

Vassallo,

Benzerga,

Bahmanyar

et al. 2023

2023 International Conference on Clean Electrical Power (ICCEP)

View full text Add to dashboard Cite

The increasing adoption of distributed energy resources, particularly photovoltaic (PV) panels, has presented new and complex challenges for power network control. With the significant energy production from PV panels, voltage issues in the network have become a problem. Currently, PV smart inverters (SIs) are used to mitigate the voltage problems by controlling their active power generation and reactive power injection or absorption. However, reducing the active power output of PV panels can be perceived as unfair to some customers, discouraging future installations. To solve this issue, in this paper, a reinforcement learning technique is proposed to address voltage issues in a distribution network, while considering fairness in active power curtailment among customers. The feasibility of the proposed approach is explored through experiments, demonstrating its ability to effectively control voltage in a fair and efficient manner.

show abstract

“…This will affect the economic viability of PV when the system will be generating less than what it was designed for while also results in green energy wastage. Other mitigation techniques for voltage rise problem are constant power factor control, adaptive droop-based supplementary control, DSTATCOM-Fuel Cell System, and emerging inverter control methods [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Voltage Regulation Control Using Battery Energy Storage System in Distribution Network With High Pv Penetration Strength

et al. 2021

View full text Add to dashboard Cite

In recent years, the increasing integration of PV generations into distribution network systems is becoming a huge concern as it introduces various complications such as voltage rise problems, especially during high PV penetration levels. Conventional mitigation methods using voltage regulating devices are not designed to mitigate this particular problem while emerging methods requires sacrifices in term of cost and profit to be made by PV system owners. Thus, mitigation using a battery energy storage system (BESS) is proposed in this paper, where it is specifically designed to solve the voltage rise problem in the distribution system during high PV penetration. This is achieved by controlling the charging and discharging of the BESS accordingly. To validate the effectiveness of the proposed BESS, a simulation using MATLAB/Simulink software of 25 distributed PV generations with respective loads connected to a distribution network power system is done. The penetration level is set from 0% to 100% and the voltage level is measured at the point of common coupling for each increment. The findings show that the BESS can regulate the voltage rise that occurred during high PV penetration of 80% and 100% from 1.11 p.u. and 1.13 p.u. to an acceptable voltage of 1.01 pu.

show abstract

Overvoltage Prevention and Curtailment Reduction Using Adaptive Droop-Based Supplementary Control in Smart Inverters

Cited by 5 publications

References 34 publications

Integrated Volt/Var Control Method for Voltage Regulation and Voltage Unbalance Reduction in Active Distribution Networks

Integrated Volt/Var Control Method for Voltage Regulation and Voltage Unbalance Reduction in Active Distribution Networks

Fair Reinforcement Learning Algorithm for PV Active Control in LV Distribution Networks

Voltage Regulation Control Using Battery Energy Storage System in Distribution Network With High Pv Penetration Strength

Contact Info

Product

Resources

About