2018 Australasian Universities Power Engineering Conference (AUPEC)最新文献_第10页

Determining the Impact of Line Asymmetries on Network Voltage Unbalance based on Balanced Load Flow Studies 基于均衡潮流研究确定线路不对称对电网电压不平衡的影响

2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757897

T. D. Kahingala, S. Perera, A. Agalgaonkar, U. Jayatunga

{"title":"Determining the Impact of Line Asymmetries on Network Voltage Unbalance based on Balanced Load Flow Studies","authors":"T. D. Kahingala, S. Perera, A. Agalgaonkar, U. Jayatunga","doi":"10.1109/AUPEC.2018.8757897","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757897","url":null,"abstract":"Determining the impact of the individual contributors to network voltage unbalance (VU) is a complex task due to the interaction between the sources of voltage unbalance in power systems. This becomes further complicated as the network itself contributes to network voltage unbalance when it is not symmetrical which is mostly the case in real networks. To account for the network asymmetry, the Technical Report IEC/TR 61000-3-13 which is used for the assessment of voltage unbalance emission limits applies a scaling factor Kue when apportioning the global allowance to end user consumers. Studies on the impact of the untransposed overhead lines on each and every individual busbar and on the overall network voltage unbalance are essential in: emission allocation studies, identification of power flow constraints, and in decision making related to future investments on VU mitigation. This paper proposes an effective methodology to determine the influence of different untransposed lines based on the results of balanced load flow studies. The methodology can be easily extended to obtain the influence of the other contributors as well.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126388319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Towards the Development of High Fidelity Harmonic Models for Solar Farms: Existing Knowledge 面向太阳能农场高保真谐波模型的发展:现有知识

2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8758037

Samadhi Liyanage, S. Perera, D. Robinson, D. Muthumuni, J. Peiris, M. Vilathgamuwa

{"title":"Towards the Development of High Fidelity Harmonic Models for Solar Farms: Existing Knowledge","authors":"Samadhi Liyanage, S. Perera, D. Robinson, D. Muthumuni, J. Peiris, M. Vilathgamuwa","doi":"10.1109/AUPEC.2018.8758037","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8758037","url":null,"abstract":"The unprecedented growth of solar photovoltaic (PV) generation at both small (domestic/commercial) and largescale (farm level) is evident from around the world including Australia. This growth has brought about significant technical challenges that are being addressed progressively by network operators and owners. As an example, the steps being taken to address these issues is evident in Australia with the release of several documents by the Australian Energy Market Operator recently and the Standards Australia. In relation to large solar farms, among the technical issues of concern, power quality is a significant issue of concern. In this regard, the attention paid to harmonics has taken a prominent position in power quality studies associated with the connection of large solar plants. The large inverters in these plants tend to produce both characteristic and uncharacteristic harmonics of low order. These harmonics are seen to arise and/or amplify due to a number of reasons including non-ideal behaviour associated with inverter operation, grid conditions, associated control systems, control interactions and network resonance. The networks to which these plants are connected need to be managed using existing harmonic management techniques and the connection studies require reliable and reasonably robust models of the inverters and the associated networks. It is vital that these models are used with greater understanding so that resulting harmonics can be effectively managed. It is evident that the network connection studies are currently carried out using vendor provided models of inverters. Although these models may be representing worst case behaviours, it is important to develop a deeper understanding of the sensitivity of these models to the various influencing factors. The aim of this paper is to develop this understanding which can be used as a foundation to develop high fidelity solar plant models.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125772080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Blockchain-based microgrid market and trading mechanism 基于区块链的微电网市场与交易机制

2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757870

Huan Li, N. Nair

引用次数: 6

Bidding Strategy of Virtual Power Plant Considering Multi-Energy Storage and CSD 考虑多储能和CSD的虚拟电厂竞价策略

2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8758036

He Shaowen, Wei Xingchen, C. Qiuyue, Yang De-chang

引用次数: 0

A New Technology to Reduce Harmonic Emission in Distribution Networks: Addressing IEC 61000-3-12 一种降低配电网谐波发射的新技术:解决IEC 61000-3-12

2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8758007

Abdulrahman Alduraibi, J. Yaghoobi, Firuz Zare, Rahul Sharma

引用次数: 7