A new control strategy for low‐voltage ride‐through of three‐phase grid‐connected PV systems

Wen, Hao; Fazeli, Meghdad

doi:10.1049/joe.2018.9254

Cited by 14 publications

(5 citation statements)

References 14 publications

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“…In [149], a multi-objective strategy implemented in the d-q reference frame is formulated. The strategy performs well under symmetrical and asymmetrical grid voltage conditions.…”

Section: A Voltage Compensation Calculation Control Strategy (Vcccs)mentioning

confidence: 99%

A Comprehensive Review of Control Strategies to Overcome Challenges During LVRT in PV Systems

Joshi¹,

Swami

Jately

et al. 2021

IEEE Access

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Due to the high penetration of grid-connected photovoltaic (GCPV) systems, the network operators are regularly updating the grid codes to ensure that the operation of GCPV systems will assist in maintaining grid stability. Among these, low-voltage-ride-through (LVRT) is an important attribute of PV inverters that allows them to remain connected with the grid during short-term disturbances in the grid voltage. Hence, PV inverters are equipped with control strategies that secure their smooth operation through this ride-through period as per the specified grid code. During the injection of reactive power under LVRT condition, various challenges have been observed, such as inverter overcurrent, unbalance phase voltages at the point of common coupling (PCC), overvoltage in healthy phases, oscillations in active, reactive power and dc-link voltage, distortion in injected currents and poor dynamic response of the system. Several strategies are found in the literature to overcome these challenges associated with LVRT. This paper provides a critical review on the recent challenges and the associated strategies under LVRT conditions in GCPV inverters. The drawbacks associated with the conventional current control strategies are investigated in MATLAB/Simulink environment and each category of the advanced LVRT control strategy is analyzed under different types of grid faults. Moreover, this work categorizes different state-of-the-art LVRT techniques on the basis of synchronization methods, current injection techniques and dc-link voltage control strategies. It is found that the state-of-the-art control strategies like OVSS/OCCIDGS provides improved voltage support and current limitation which results in smooth LVRT operation by injecting currents of enhanced power quality.

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“…In [149], a multi-objective strategy implemented in the d-q reference frame is formulated. The strategy performs well under symmetrical and asymmetrical grid voltage conditions.…”

Section: A Voltage Compensation Calculation Control Strategy (Vcccs)mentioning

confidence: 99%

A Comprehensive Review of Control Strategies to Overcome Challenges During LVRT in PV Systems

Joshi¹,

Swami

Jately

et al. 2021

IEEE Access

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“…A similar trend is affecting Electric Vehicles (EVs), with governments encouraging EV use to achieve netzero emission goals [3]. The integration of RESs is creating some challenges for network operators, including overgeneration [4,5]. For example, in 2019, Germany's electricity network could not cope with the excess energy generated from RESs, resulting in paying neighboring countries to consume the excess energy [6], a solution that may not exist in near future as the other countries are also increasingly integrating more renewables.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Electric Vehicles Contributions in an Optimized Peer-to-Peer Energy Trading System

et al. 2023

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The rapid increase in integration of Electric Vehicles (EVs) and Renewable Energy Sources (RESs) at the consumption level poses many challenges for network operators. Recently, Peer-to-Peer (P2P) energy trading has been considered as an effective approach for managing RESs, EVs, and providing market solutions. This paper investigates the effect of EVs and shiftable loads on P2P energy trading with enhanced Vehicle to Home (V2H) mode, and proposes an optimized Energy Management Systems aimed to reduce the net energy exchange with the grid. Mixed-integer linear programming (MILP) is used to find optimal energy scheduling for smart houses in a community. Results show that the V2H mode reduces the overall energy costs of each prosumer by up to 23% compared to operating without V2H mode (i.e., EVs act as a load only). It also reduces the overall energy costs of the community by 15% compared to the houses operating without the V2H mode. Moreover, it reduces the absolute net energy exchanged between the community and the grid by 3%, which enhances the energy independence of the community.

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“…The main concerns with DERs are that they are intermittent and require a robust electrical network system [3]. High penetrations of DERs can cause numerous technical [4,5] and operational challenges for the network operators. For example, it is reported that California over several days had to pay Arizona to take its excess solar power to avoid overloading its own power lines [6].…”

Section: Introductionmentioning

confidence: 99%

Enhancing PV Self-Consumption Within an Energy Community Using MILP-Based P2P Trading

et al. 2022

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The high penetration of Distributed Energy Resources (DERs) into the demand side has led to an increase in the number of consumers becoming prosumers. Recently, Peer-to-Peer (P2P) energy trading has gained increased popularity as it is considered an effective approach for managing DERs and offering local market solutions. This paper presents a P2P Energy Management System (EMS) that aims to reduce the absolute net energy exchange with the utility by exploiting two days-ahead energy forecast and allowing the exchange of the surplus energy among prosumers. Mixed-Integer Linear Programming (MILP) is used to schedule the day-ahead household battery energy exchange with the utility and other prosumers. The proposed system is tested using the measured data for a community of six houses located in London, UK. The proposed P2P EMS

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A new control strategy for low‐voltage ride‐through of three‐phase grid‐connected PV systems

Cited by 14 publications

References 14 publications

A Comprehensive Review of Control Strategies to Overcome Challenges During LVRT in PV Systems

A Comprehensive Review of Control Strategies to Overcome Challenges During LVRT in PV Systems

Investigation of Electric Vehicles Contributions in an Optimized Peer-to-Peer Energy Trading System

Enhancing PV Self-Consumption Within an Energy Community Using MILP-Based P2P Trading

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