Analysis of unbalance Plug-in Electric Vehicle home charging in PEA distribution network by stochastic load model

Klayklueng, Thongchai; Dechanupaprittha, Sanchai; Kongthong, Pichai

doi:10.1109/sedst.2015.7315241

Cited by 14 publications

(6 citation statements)

References 5 publications

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“…In ref. [26], if EVs have been charged nearby the substation, the voltage unbalance may likely be lower than 2%, which is insignificant, in accordance with the IEC standard [9].…”

Section: Introductionmentioning

confidence: 75%

“…This indicates a paradigm shift in changing from the passive distribution grid to the active distribution grid where controlling voltage profiles become increasingly challenging. As described above, the topic of voltage unbalance has recently attracted more attention from many researchers to investigate the DERs integration impacts on the distribution systems [3,[17][18][19][20][21][22][23][24][25][26]. This voltage unbalance issue occurs in many countries such as Oman, Canada, Malaysia, and Belgium [15,[27][28][29].…”

Section: Emerging Causes Of Voltage Unbalancementioning

confidence: 99%

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Comprehensive review and a novel technique on voltage unbalance compensation

2023

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Voltage unbalance has gained more attention due to a rapid increase in single-phase distributed energy resources (DERs) penetration compound with existing unbalance characteristics of low voltage distribution network. The purposes of this article are to summarise various techniques on voltage unbalance compensation from three different strategies: (1) techniques based on passive approach and advanced power electronics; (2) Techniques based on three-phase DERs; (3) techniques based on single-phase DERs. In addition, a novel voltage unbalance compensation technique that applies a voltage sensitivity analysis along with a symmetrical component concept to meet a desired voltage unbalance factor (VUF) is introduced in this article. Coordination among single-phase DERs that contributes in the voltage unbalance compensation is also considered. In order to evaluate the effectiveness of this proposed technique, its results are compared with the results that are obtained using a current unbalance compensation strategy. The results indicate that the novel technique proposed in this study provides more stable voltage unbalance compensation while successfully achieving the specified VUF thresholds. K E Y W O R D Sdistribution networks, electric vehicles, photovoltaic power systems, quality control, reactive power control, renewable energy sources, voltage controlThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…In ref. [26], if EVs have been charged nearby the substation, the voltage unbalance may likely be lower than 2%, which is insignificant, in accordance with the IEC standard [9].…”

Section: Introductionmentioning

confidence: 75%

Section: Emerging Causes Of Voltage Unbalancementioning

confidence: 99%

Comprehensive review and a novel technique on voltage unbalance compensation

2023

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“…Theoretically, the three phases of distribution feeders are equally loaded by residential loads distributed by utilities. Although networks at the supply side are usually balanced, as a result of unequal system impedances and asymmetrical distribution of single-phase loads, practically system voltage may become unbalanced [32], [33]. As a result, the voltage may drop out of acceptable range in consumer side and excessive current can be generated in the neutral [34].…”

Section: Introductionmentioning

confidence: 99%

Online Centralized Charging Coordination of PEVs With Decentralized Var Discharging for Mitigation of Voltage Unbalance

Jabalameli

Ghosh

2019

IEEE Power Energy Technol. Syst. J.

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The worldwide acceptance of plug-in electric vehicles (PEVs) is expected to tremendously grow in the next few years. Uncoordinated PEV charging can cause serious grid issues such as overloading of transformers and unacceptable voltage drops. Single-phase residential charging can also initiate or contribute to voltage unbalance in distribution networks. A potential solution for the PEV integration is shifting the charging activities from peak to valley periods. Therefore, this paper firstly investigates the impacts of uncoordinated single-phase PEV charging at residential houses on three-phase distribution networks. Then, it proposes a novel PEV charging coordination strategy based on heuristic genetic algorithm (GA) to perform online centralized charging considering transformer loading and bus voltage profiles. Based on this, a decentralized PEV reactive power discharging approach is presented where the reactive power is discharged at selected nodes for further reduction of voltage unbalance. The impacts of uncoordinated PEV charging as well as the performance of the proposed centralized PEV charging and decentralized var discharging strategies are tested on a real unbalanced Western Australian distribution network under the Perth Solar City project over 24 hours. INDEX TERMS Centralized PEV charging, decentralized PEV var discharging, voltage unbalance and distribution network.

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“…Ref. [15] analyzed the unbalance of plug-in EVs home charging in distribution network by stochastic load model. In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, on the uncertainties of EVs included in MES, some work used the deterministic modeling to formulate the scheduling of MES, without further discussing the stochastic model of EV availability and driving pattern [7,9,11]; in other work, although the stochastics were considered, the coordination between electricity and thermal multi-energy was involved simply. As for the costs of EVs' batteries degradation, little research included it in the coupled scheduling optimization of multi-energy, which is important for realizing the high efficiency operation control for CHP units with the unmatched heating and electric power demands [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Stochastic Model Predictive Control Based Scheduling Optimization of Multi-Energy System Considering Hybrid CHPs and EVs

2019

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Recently, the increasing integration of electric vehicles (EVs) has drawn great interest due to its flexible utilization; moreover, environmental concerns have caused an increase in the application of combined heat and power (CHP) units in multi-energy systems (MES). This paper develops an approach to coordinated scheduling of MES considering CHPs, uncertain EVs and battery degradation based on model predictive control (MPC), aimed at achieving the most economic energy scheduling. After exploiting the pattern of the drivers’ commuting behavior, the stochastic characteristics of available charging/discharging electric power of aggregated EVs in office or residential buildings are analyzed and represented by the scenarios with the help of scenario generation and reduction techniques. At each step of MPC optimization, the solution of a finite-horizon optimal control is achieved in which a suitable number of available EVs scenarios is considered, while the economic objective and operational constraints are included. The simulation results obtained are encouraging and indicate both the feasibility and the effectiveness of the proposed approach.

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Analysis of unbalance Plug-in Electric Vehicle home charging in PEA distribution network by stochastic load model

Cited by 14 publications

References 5 publications

Comprehensive review and a novel technique on voltage unbalance compensation

Comprehensive review and a novel technique on voltage unbalance compensation

Online Centralized Charging Coordination of PEVs With Decentralized Var Discharging for Mitigation of Voltage Unbalance

Stochastic Model Predictive Control Based Scheduling Optimization of Multi-Energy System Considering Hybrid CHPs and EVs

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