2020 IEEE International Conference on Power Systems Technology (POWERCON)最新文献_第6页

Distributed Optimal Voltage Regulation for Distribution Networks with DGs at the Energy Delivery Grid Edge with Limited Information Exchange 有限信息交换条件下电网边缘dg配电网的分布式最优电压调节

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230555

Mohammad Razeghi-Jahromi, D. Coats, J. Stoupis

引用次数: 0

In- situ On-line Acoustic Emission Measurement and Off-line Recovery Voltage Measurement for periodic condition monitoring of oil-filled 220kV transformers- comparison of results 220kV充油变压器周期性状态监测现场在线声发射测量与离线恢复电压测量结果比较

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230620

Dr. T.Bhavani Shanker, V. Vaidhyanathan, R. Shyam, A. Mohamed

{"title":"In- situ On-line Acoustic Emission Measurement and Off-line Recovery Voltage Measurement for periodic condition monitoring of oil-filled 220kV transformers- comparison of results","authors":"Dr. T.Bhavani Shanker, V. Vaidhyanathan, R. Shyam, A. Mohamed","doi":"10.1109/POWERCON48463.2020.9230620","DOIUrl":"https://doi.org/10.1109/POWERCON48463.2020.9230620","url":null,"abstract":"Periodic condition monitoring of Transformers -play a key role right from generating station to the distribution of power-ensuring uninterrupted power supply. Transformers have complex insulation system and assessing condition of the insulation system for defects like partial discharges, hot spots, ingress of moisture due to loosening of gaskets etc., is very essential. Condition monitoring techniques such as off-line and/or on-line are adopted to assess the condition of insulation system. This paper presents the in-situ findings of the periodic condition monitoring of 220kV class transformers in a power generation station in India. Acoustic emission technique which is one of the on-line test tools for periodic condition monitoring and also to study the relative performance by carrying out the test over different years, is used in this paper. Recovery voltage measurement is an off-line test being used to assess the moisture content in the paper-oil insulation system of the transformer. The results obtained with on-line acoustic emission measurements using acoustic emission technique were found to be comparative in terms of their respective magnitude with the results obtained with off-line Recovery Voltage Measurement (RVM) test.","PeriodicalId":306418,"journal":{"name":"2020 IEEE International Conference on Power Systems Technology (POWERCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133188830","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

Enhanced Low Voltage Ride- Through Control Capability of a DFIG-Based Wind Power Plant 基于dfig的风力发电厂增强的低压全程控制能力

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230548

K. Thapa, Kishan Jayasawal, P.R. Khatri

{"title":"Enhanced Low Voltage Ride- Through Control Capability of a DFIG-Based Wind Power Plant","authors":"K. Thapa, Kishan Jayasawal, P.R. Khatri","doi":"10.1109/POWERCON48463.2020.9230548","DOIUrl":"https://doi.org/10.1109/POWERCON48463.2020.9230548","url":null,"abstract":"As per the grid code requirements for low voltage ride-through (LVRT), the wind turbine generator (WTG) should survive and produce reactive power to prop up the grid voltage during a disturbance. The manuscript proposes an enhanced LVRT control capability of a doubly fed induction generator (DFIG) based wind power plant (WPP). To accomplish it, the rotor side converter (RSC) controller of the DFIG is provided with adaptive reactive current to voltage (IQ-V) characteristics and the WPP controller provides different reference voltage to each DFIG, relying on their rotor voltage margins (RVM). Thus, the DFIGs in a WPP injects different amount of reactive power into the grid to prop up voltage at point of interconnection (POI). To survive the DFIG during a fault, the reference electromagnetic torque in the RSC of the DFIGs is decreased proportionate to the weighting factor and voltage sags at the terminals of the DFIGs intending to monitor the voltage rise across the capacitor of the DC-link. The proposed method is tested for 120 MVA WPP consisting of twenty 6-MVA DFIGs. The results validate the ability of the proposed method to produce additional reactive power in comparison to the conventional method to contribute to the POI voltage and regulate voltage rise in DC-link of the DFIGs during a grid disturbance.","PeriodicalId":306418,"journal":{"name":"2020 IEEE International Conference on Power Systems Technology (POWERCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132230440","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

Gridcode compliances and Operational Requirements of Grid connected BESS-Reneweable Power Plants 并网bess -可再生能源发电厂的电网规范合规性和运行要求

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230534

K. Shanmugam, Giovanni Pitto, Lucio Barbato

{"title":"Gridcode compliances and Operational Requirements of Grid connected BESS-Reneweable Power Plants","authors":"K. Shanmugam, Giovanni Pitto, Lucio Barbato","doi":"10.1109/POWERCON48463.2020.9230534","DOIUrl":"https://doi.org/10.1109/POWERCON48463.2020.9230534","url":null,"abstract":"Energy is a crucial ingredient for economic development of any country. Renewables provides access to clean energy quickly with lower cost and stable energy prices, with increase in reliability and resiliency. The integration of RES to the utility grid raises more fascinating challenges in integration, operation and control, protection as numerous components (power electronic converters) and constraints are involved. Grid codes are the enablers of the energy transition era, also plays an important role in defining the boundary between the requirements of secure grid operation and receiving highest possible share of RES to achieve the cost efficient energy mix. In this paper we investigated the requirements to connect the Renewable Energy Sources plants to the utility grid considering different grid codes and international standards. A renewable plant controller is proposed at plant level in order to make renewable plants to compliant to the connected grid code standards. The DIGSILENT power factory software is used to model and simulate the operation of renewable power plants, along with Battery Energy Storage System. The simulation model is analyzed with different operating conditions of power grid, to validate the compliance of renewable plant controller. In addition overview of the various international standards are provided, focusing on operational and control requirements demanded to grid connected Renewable Energy Sources plants.","PeriodicalId":306418,"journal":{"name":"2020 IEEE International Conference on Power Systems Technology (POWERCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116465126","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

2020 IEEE International Conference on Power System Technology (POWERCON) Virtual Conference 2020 IEEE电力系统技术国际会议(POWERCON)虚拟会议

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/powercon48463.2020.9230537

Virtual Conference

引用次数: 0

Optimal Generation Scheduling Approach Applied to the Transmission Grid of Uganda for Enhanced Performance and Cost Reduction 优化发电计划方法在乌干达输电网的应用，以提高输电网的性能和降低成本

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230699

David Oweka, M. Edimu, J. Serugunda, R. Okou

{"title":"Optimal Generation Scheduling Approach Applied to the Transmission Grid of Uganda for Enhanced Performance and Cost Reduction","authors":"David Oweka, M. Edimu, J. Serugunda, R. Okou","doi":"10.1109/POWERCON48463.2020.9230699","DOIUrl":"https://doi.org/10.1109/POWERCON48463.2020.9230699","url":null,"abstract":"Generation scheduling involves determination of startup and shutdown times and power outputs of all generating units at each time step, over a specified period. The scheduling of electricity production from power producers in Uganda is carried out by considering only the type of generation plants available to ensure demand-supply balance and that the power system remains stable. There is need to develop a generation scheduling procedure that not only maintains the power system in equilibrium but also maximizes utilization of available plants, minimizes both electricity production and transmission costs while reducing bulk network constraints. This paper presents an alternative generation scheduling protocol, applied to the 132kV bulk network of Uganda. The protocol starts with a short-term load forecast to establish the demand. Optimum hourly power plant outputs were determined by solving a four-plant optimal power flow problem whose objective function is an aggregation of generator cost functions subjected to active grid constraints in MatLab-PSAT. Assessment of scheduling results revealed significant reduction in cost of generating and transmitting bulk power attributed to improved plant utilization. The bulk network performance was enhanced as exhibited by improved node voltage regulation, reduction in bulk network loss and improved transmission capacity usage as per load flow analysis results obtained using DIgSILENT Power Factory software 15.1.","PeriodicalId":306418,"journal":{"name":"2020 IEEE International Conference on Power Systems Technology (POWERCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123061542","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

Model Predictive Control Based PVDG System With Integrated Power Quality Features 基于模型预测控制的综合电能质量特性PVDG系统

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230552

Roshan Pradhan, Arjun Kumar, A. Panda

{"title":"Model Predictive Control Based PVDG System With Integrated Power Quality Features","authors":"Roshan Pradhan, Arjun Kumar, A. Panda","doi":"10.1109/POWERCON48463.2020.9230552","DOIUrl":"https://doi.org/10.1109/POWERCON48463.2020.9230552","url":null,"abstract":"In recent years, with the advancement of technology in the field of power electronics, most of the loads are nonlinear in nature. The current harmonics for such types of loads may not necessarily be below the prescribed value of 5% according to the IEEE-519 grid code. Harmonic compensation required for such types of nonlinear loads may be achieved with the help of compensators such as shunt active power filter (SAPF). Generally SAPF is connected at the point of common coupling (PCC) between the gird and the PVDG system for harmonic compensation. But, such a system leads to an increase in the cost as well as complexity of the overall system. In this paper, the shunt APF has been integrated with the inverter for compensation of current harmonics for the nonlinear load. The inverter is controlled with the help of a reference current that has been generated using the widely acknowledged instantaneous reactive power theory. The switching pulse to the inverter will be given in such a manner that the inverter will generate the current harmonics required by the load. The objective is to integrate power quality enhancement technique in the Photovoltaic inverter so that it does not require an additional active power filter in the point of common coupling for power quality improvement. Also the inverter can be used to supply power to grid.","PeriodicalId":306418,"journal":{"name":"2020 IEEE International Conference on Power Systems Technology (POWERCON)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130105196","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

Evaluating The Ramping Trends And Noisy Fluctuations From Solar Power Imbalances 评估太阳能发电不平衡的倾斜趋势和噪声波动

2020 IEEE International Conference on Power Systems Technology (POWERCON) Pub Date : 2020-09-14 DOI: 10.1109/POWERCON48463.2020.9230567

Ravi Raj, Anupama Kowli, Sai Rupa V

引用次数: 1