Grid code for PV integration in distribution circuits considering overvoltage and voltage variation

Chirapongsananurak, Pisitpol; Hoonchareon, Naebboon

doi:10.1109/tencon.2017.8228175

Cited by 5 publications

(5 citation statements)

References 10 publications

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“…The most crucial challenge that results from the integration of excessive PVGUs with the LVDNs is the voltage variation. 11 Overvoltage (OV) phenomena of voltage fluctuation occurred at PCC due to the integration of PVGUs to the utility grid when the output power from the PVGUs exceeds the system load demand. 51 In the literature, authors in Reference 52 proposed an automated control method to mitigate the overvoltage of integrating the PVGUs in the LVDNs.…”

Section: Voltage Profile and Reactive Powermentioning

confidence: 99%

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Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

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This paper presents an overview of the impact of high penetration of photovoltaic (PV) systems in low-voltage distribution networks (LVDNs). High integration of solar PVs in the LVDNs has severe implications on the system parameters, efficiency, and stability. This paper also introduces the methods that have been driven to overcome these effects to preserve the steady-state conditions in the system during excessive penetration of PV generation units. A comparison between the contributions and shortcomings of the most recent researches for overvoltage mitigation strategies has been driven. Also, it includes comparing different overvoltage mitigation methods to handle the impact of the overvoltage under high penetration of PV units in the LVDNs. Besides, it presents a comparison between overvoltage mitigation methods based on their pros and cons.

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Section: Voltage Profile and Reactive Powermentioning

confidence: 99%

“…10 Overvoltage is related to the performance of the LVDNs. 11 It has different impacts on the overall system aspects such as; stability and efficiency, 12 power quality, 13 frequency oscillation, 3 and accordingly the system inertia. 14 Other researchers present the mitigation strategy for the overvoltage challenge.…”

Section: Introductionmentioning

confidence: 99%

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Hamza

Sedhom

Badran

2021

Int Trans Electr Energ Syst

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“…Electronics 2021, 10, 1569 2 of 16 Nevertheless, the high integration of PV systems and their intermittent nature have posed technical challenges for the distribution network operators (DNOs). Violations of voltage limits, thermal overloads, and voltage unbalances and fluctuations are some of the technical issues associated with increased solar power generation [3].…”

Section: Introductionmentioning

confidence: 99%

“…Contrary to conventional PV inverters, modern PV inverters are recognized to be intelligent, as they could provide more advanced functionalities than merely converting the direct current output of solar panels into an alternating current. Among the different voltage controls provided by solar PV inverters, active power curtailment [6][7][8][9][10] and reactive power management [11][12][13][14][15][16][17][18][19][20] have been established as viable solutions for the overvoltage problems associated with extensive solar PV penetration in LV distribution networks. These techniques could control the active and reactive power output of the PV inverter and maintain the terminal voltage of the PV system within the allowable voltage limits.…”

Section: Introductionmentioning

confidence: 99%

“…In fixed power factor control, the solar PV inverters are always operated at fixed, non-unity power factors, whereas in the PFC as a function of injected active power and Volt-Var controls, the droop settings of PV inverters are adjusted to allow for effective voltage regulation. The authors of [14][15][16] focused on power factor control techniques, while the authors of [17][18][19][20][21] proposed Volt-Var control to regulate the grid voltage. Much research has been conducted to investigate the effectiveness of different control techniques in mitigating the overvoltage issues associated with high PV penetration.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Reactive Power Control Techniques for Solar PV Inverters to Mitigate Voltage Rise in Low-Voltage Grids

2021

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The greater integration of solar photovoltaic (PV) systems into low-voltage (LV) distribution networks has posed new challenges for the operation of power systems. The violation of voltage limits attributed to reverse power flow has been recognized as one of the significant consequences of high PV penetration. Thus, the reactive power control of PV inverters has emerged as a viable solution for localized voltage regulation. This paper presents a detailed study on a typical Malaysian LV distribution network to demonstrate the effectiveness of different reactive power control techniques in mitigating overvoltage issues due to high PV integration. The performance of four reactive power control techniques namely, fixed power factor control, scheduled power factor control, power factor control as a function of injected active power, and voltage-dependent reactive power control were analyzed and compared in terms of the number of customers with voltage violations, reactive power compensation, and network losses. Three-phase, time-series, high-resolution power-flow simulations were performed to investigate the potential overvoltage issues and to assess the performance of the adoption of reactive power controls in the network. The simulation results revealed that the incorporation of reactive power controls of solar PV inverters aids in successfully mitigating the overvoltage issues of typical Malaysian networks. In particular, the Volt-Var control outperformed the other control techniques by providing effective voltage regulation while requiring less reactive power compensation. Furthermore, the comparative analysis highlighted the significance of employing the most appropriate control technique for improved network performance.

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Power Factor Control of Solar Photovoltaic Inverter as a Solution to Overvoltage

Norhasmi

Raveendran

Ramachandaramurthy

2018

2018 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

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Grid code for PV integration in distribution circuits considering overvoltage and voltage variation

Cited by 5 publications

References 10 publications

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Impact and assessment of the overvoltage mitigation methods in low‐voltage distribution networks with excessive penetration of PV systems: A review

Comparison of Reactive Power Control Techniques for Solar PV Inverters to Mitigate Voltage Rise in Low-Voltage Grids

Power Factor Control of Solar Photovoltaic Inverter as a Solution to Overvoltage

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