2019 54th International Universities Power Engineering Conference (UPEC)最新文献

Universities as a source of grid flexibility: A case study 大学作为网格灵活性的来源:一个案例研究

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-08 DOI: 10.1109/UPEC.2019.8893557

Motasem Bani Mustafa, P. Keatley, Ye Huang, O. Agbonaye, N. Hewitt, I. Vorushylo

引用次数: 1

Feasibility Study of Small Scale Battery Storage Systems Integrated with Renewable Generation Technologies for Sri Lankan Domestic Applications 小型电池储能系统与可再生能源发电技术在斯里兰卡国内应用的可行性研究

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893549

Wattala Fernando, N. Gupta, G. Kamyab, C Ozveren Suheyl

引用次数: 0

Evaluation of Precipitation Rate Impacts on Overhead Transmission Line Ampacity 降水率对架空输电线路容量影响的评价

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893644

Abdallah Abdaelbaset, M. Farrag, S. Farokhi

引用次数: 0

Promoting The ‘E’ In Stem 推广Stem中的“E”

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893594

Sara Darwish, Mohamed Darwish

引用次数: 0

Tank Circuiting of 3-Pole PV Based DC Microgrid for Pole-to-Pole Voltage Balancing 基于三极光伏的直流微电网的槽路极对极电压平衡

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893547

Babatunde A. Giwa, Habtay Yehdego

{"title":"Tank Circuiting of 3-Pole PV Based DC Microgrid for Pole-to-Pole Voltage Balancing","authors":"Babatunde A. Giwa, Habtay Yehdego","doi":"10.1109/UPEC.2019.8893547","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893547","url":null,"abstract":"This paper focuses on the regulation of pole-to-pole voltage in 3-Pole PV Based DC Microgrid (3-PPDM). This type of microgrid is conceived to mimic in dc microgrid, the operational feature of grid-connected three-phase ac microgrid where no transformer is required at distribution level for the provision of different voltage levels (phase and line) operation within the ac microgrid. 3-PPDM is developed with PV Based DC Microgrid connected to ac grid via single stage dc link and 3-Level Voltage Source Converter (3L-VSC). Operation of distributed flexible dc loads at lower voltage level on the dc link without dc-dc converters cause voltage imbalance among poles. This imbalance violates the technical constraints for desirable operation of both the 3L-VSC and distributed dc loads. Distributional effects of this violation are reduction in dc link voltage and grid parameters (voltage and current) qualities. Consequently, distributed Pulse Width Modulation (d-PWM) based algorithm was developed together with a 2-in-1 Tank Circuit (TC) to regulate this imbalance under slowly/rapidly varying irradiance by bringing the voltage differential among poles nearly to zero. The simulation results obtained under rectification and inversion operational mode of 3L-VSC show marginal improvement in dc link voltage and grid current qualities at reduced operational cost.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80569379","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: 1

Power Hardware In the Loop and Ancillary Service for Voltage Regulation in Low Voltage Grid 低压电网电压调节的电力硬件在环及辅助服务

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893578

S. Oyegoke, Y. Habtay, Marios Maniatopoulos, P. Kotsampopoulos, Simeon Keates

{"title":"Power Hardware In the Loop and Ancillary Service for Voltage Regulation in Low Voltage Grid","authors":"S. Oyegoke, Y. Habtay, Marios Maniatopoulos, P. Kotsampopoulos, Simeon Keates","doi":"10.1109/UPEC.2019.8893578","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893578","url":null,"abstract":"Power production via traditional generators play a major role to meet demand, however, the trend is shifting towards utilization of distributed renewable sources. Distributed Energy Resources (DER) becomes a means to support loads locally. As DERs are typically intermittent sources, there are challenges associated with the high level of penetration of these resources that are of concern to grid operators. There are also opportunities associated with this technology as the inverters connecting the DERs could support voltage regulation by performing reactive power compensation in the grid.The concept of utilizing droop controlled DERs as reactive power resources is explored in this paper. As the active power production fluctuates with solar insolation, the spare capacity of the inverters could be employed to provide effective reactive power compensation to support the grid.In this paper, Power Hardware in the Loop (PHIL) simulation was employed where a single-phase PV inverter hardware is operated in parallel with three other real-time simulated inverters to deliver ancillary services. The results have shown that the switching steps of the On-Load Tap changer transformer (OLTC) were reduced, thus improving overall system performance.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72708292","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: 3

Supporting LV Distribution Network Voltage Using PV Inverters Under High EV Penetration 利用光伏逆变器在高EV渗透下支持低压配电网电压

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893498

E. Akakabota, G. Pillai, M. Allison

{"title":"Supporting LV Distribution Network Voltage Using PV Inverters Under High EV Penetration","authors":"E. Akakabota, G. Pillai, M. Allison","doi":"10.1109/UPEC.2019.8893498","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893498","url":null,"abstract":"The growing popularity of Electric Vehicles (EV) as an alternative to fossil-fuel-driven vehicles has immense environmental appeal. Considering the effects on distribution networks, which were not designed to support such loads, several challenges are bound to be encountered in a future with purely EVs. One of such technical challenges is the effect of charging several EVs at the same time on distribution network voltage. While coordinated charging is one solution, reactive power compensation can be used to support voltage at the point of connection without the need for a centralised control. This paper explores the feasibility of using installed photovoltaic (PV) inverters as voltage compensation devices in Low Voltage (LV) distribution networks. A reactive power controller was developed in Simulink for PV inverters. The case study of a UK LV network for the winter season was used to investigate the feasibility. Results using a cumulative under-voltage index (CUVi) developed to quantify the contributions of the PV inverter reactive power compensation to network voltage support shows that for up to 30% EV penetration, the available PV capacity alone can completely eliminate under-voltage incidents.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86535129","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: 1

Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks 一种低压配电网保护校正固态装置的效率研究

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893523

S. Ioannou, C. Marouchos, M. Darwish, G. Putrus

引用次数: 4

Bidirectional Power and Data Flow via Enhanced Portal Based TSO-DSO Coordination 基于增强门户的TSO-DSO协调的双向功率和数据流

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893602

M. Radi, G. Taylor, M. Uslar, J. Köhlke, N. Suljanovic

引用次数: 9

Quasi Dynamic Simulation for the Voltage Control in the Active Networks, Oman Case Study 主动电网电压控制的准动态仿真，阿曼案例研究

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-11-07 DOI: 10.1109/UPEC.2019.8893529

A. Al-Nadabi, L. Cipcigan

{"title":"Quasi Dynamic Simulation for the Voltage Control in the Active Networks, Oman Case Study","authors":"A. Al-Nadabi, L. Cipcigan","doi":"10.1109/UPEC.2019.8893529","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893529","url":null,"abstract":"the transition of passive distribution network towards being active network results in many operation challenges. Voltage control is one of these challenges. This paper has studied the effectiveness of four voltage controlling techniques in a real 132/33/11kV distribution network from Oman which are on-load tap changer control, energy storages installation, transformer tap staggering and power curtailment control. The network has been stressed by large penetration of solar photovoltaic and wind farm power plants. Each techniques have performed differently in maintaining the voltages profile within the statutory limits ±6%. The lowest effectiveness level is the power curtailment, and that is due to the high X/R ratio, as the studied network constitute of overhead lines more than cable lines. Regarding losses reduction effects, energy storage was the highest efficient method whereas the transformer tap staggering control was the lowest efficient method. Moreover, Quasi Dynamic simulation method was used for variable load modeling which has increased the opportunity of large DGs accommodation compared to the static load simulation.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89324624","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: 0