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Measurement of Radio Interference Emission Around +/−100 MVAR STATCOM Valve Building Near 400/220 kV Substation 400/220千伏变电站附近+/−100 MVAR STATCOM阀楼无线电干扰发射测量
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771779
P. Rajamani, K. Urukundu, P. Nirgude
{"title":"Measurement of Radio Interference Emission Around +/−100 MVAR STATCOM Valve Building Near 400/220 kV Substation","authors":"P. Rajamani, K. Urukundu, P. Nirgude","doi":"10.1109/NPSC.2018.8771779","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771779","url":null,"abstract":"Flexible AC Transmission System (FACTS) devices are inevitable to improve the performance of power supply system having the interconnection with solar and wind forms. The firing of converter valves of these large power electronics devices emits radio interferences, which may disturb the operation of nearby other delicate electronics devices. CIGRE, CISPR and IEEE had given guidelines for limits, analytical calculation, measurements and attenuation. In the present work the experiences of measuring radio interference around the valve hall is elaborated for three different operating conditions, including while injecting reactive power into the grid from STATCOM unit.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132496946","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
Comparison between position-encoder and position-sensorless vector control of High Speed PMSM with Flux Weakening Operation 磁链弱化的高速永磁同步电机位置编码器与无位置传感器矢量控制的比较
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771831
K. Renu, N. Kumari, D.Ravi Kumar
{"title":"Comparison between position-encoder and position-sensorless vector control of High Speed PMSM with Flux Weakening Operation","authors":"K. Renu, N. Kumari, D.Ravi Kumar","doi":"10.1109/NPSC.2018.8771831","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771831","url":null,"abstract":"Domestic Appliances such as washing machine requires higher speeds during spin dry cycle and is usually 2 to 3 times of rated speeds. Even traction applications require wide range of speed control. To achieve speeds greater than rated speeds, Flux Weakening is employed. Due to load perturbations and due to higher speeds, appliance such as Washing machine is subjected to excessive vibrations and thereby affecting the dynamic performance of system. Effective Control approach such as Field Oriented Control is essential for designing a high performance drive system. Cost and reliability concerns should be taken into consideration while employing such control techniques as it requires sensors for detecting rotor speed and position information for its effective functioning. In this paper, a Sensorless Field Oriented Control of Permanent Magnet Synchronous Motor (PMSM) with Flux Weakening is evaluated. Model Reference Adaptive System (MRAS) based on stator current controller is used as position-sensorless estimation algorithm and a comparison is performed between controller with sensors (position-encoder) and sensorless controller. Results have demonstrated the feasibility and effectiveness of sensorless control compared to controller with sensors.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131854236","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
Introduction of Secondary Frequency Control in Indian Power System 印度电力系统二次频率控制的介绍
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771767
Phanisankar Chilukuri, S. Narasimhan, N. Nallarasan, Kajal Gaur, Anamika Sharma, H. Rathour, S. Soonee, K. Baba
{"title":"Introduction of Secondary Frequency Control in Indian Power System","authors":"Phanisankar Chilukuri, S. Narasimhan, N. Nallarasan, Kajal Gaur, Anamika Sharma, H. Rathour, S. Soonee, K. Baba","doi":"10.1109/NPSC.2018.8771767","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771767","url":null,"abstract":"Secondary frequency control has been introduced through Automatic Generation Control (AGC) in India in 2018 on a pilot basis. This paper elaborates the various steps that were involved in the introduction of secondary frequency control. Details of the important resources identified for the implementation of AGC at load despatch centre and at power plants are elaborated. Regulatory framework evolved around secondary frequency control is discussed. The authors also present the core ideas around secondary frequency control and its future in India.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122229744","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
Large Power System Stability Analysis Using a FOSS-based tool: SciLab/Xcos 基于开源软件的SciLab/Xcos大型电力系统稳定性分析
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771782
V. Singh, H. G. Navada, K. Shubhanga
{"title":"Large Power System Stability Analysis Using a FOSS-based tool: SciLab/Xcos","authors":"V. Singh, H. G. Navada, K. Shubhanga","doi":"10.1109/NPSC.2018.8771782","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771782","url":null,"abstract":"This paper describes the usage of an open-source tool namely Scilab-package for development of a multi-machine small-signal stability programme. It is shown that the package has enough computational capabilities to carry out large power system analysis. Analytical and time-domain simulation results obtained for a well-known 4-machine, 10-bus, 10-machine, 39-bus and 50-machine, l45-bus power systems demonstrate that Scilab/Xcos can be an alternate open-source tool to conventional proprietary software.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124746312","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
A Combined Energy and Transmission Pricing Scheme under ACOPF Framework ACOPF框架下的能源和输电联合定价方案
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771778
Shri Ram Vaishya, V. Sarkar
{"title":"A Combined Energy and Transmission Pricing Scheme under ACOPF Framework","authors":"Shri Ram Vaishya, V. Sarkar","doi":"10.1109/NPSC.2018.8771778","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771778","url":null,"abstract":"The conventional transmission pricing (TP) approaches may create the payment and revenue uncertainties for the nodal entities and transmission line owners, respectively. The issues in the conventional TP approaches are resolved by introducing the market-based TP scheme. In the market-based TP scheme, the transmission line owner offers their capacities in the day-ahead market in the same way the nodal entities (i.e., generators and loads) do. The existing market-based TP approach is established under the DC optimal power flow (DCOPF) framework. However, the DCOPF may not be applicable, in case, the line resistances are not negligible or the linear approximations of the trigonometric terms are not accurate. Therefore, the aim of this work is to explore the suitability of the market-based TP mechanism under the AC optimal power flow framework. The scheduling problem is formulated using AC power flow equations and different marginal prices are calculated for the nodal and transmission entities. The proposed approach is validated through suitable studies.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"53 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130334243","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
Coordinated Charging of Electric Vehicles for Reducing Operation Cost Under TOU Electricity Prices 分时电价下电动汽车协同充电降低运行成本
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771729
Tanuj Rawat, K. R. Niazi
{"title":"Coordinated Charging of Electric Vehicles for Reducing Operation Cost Under TOU Electricity Prices","authors":"Tanuj Rawat, K. R. Niazi","doi":"10.1109/NPSC.2018.8771729","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771729","url":null,"abstract":"In this work, a case study is carried out by considering time-of-use (TOU) price plan set by Ontario Energy Board (OEB), Canada with an objective of minimizing operation cost. The operation cost is compared for uncoordinated (mode 1), charging only (mode 2) and coordinated charging/discharging (mode 3) modes respectively for both winter and summer TOU rates. Impact of battery charging/discharging efficiencies and incentives of V2G energy prices on these results is also discussed. Results show that when vehicle to grid (V2G) prices are made 1.5 times of electricity price for peak hours with battery cost half of current price, reduction in cost for 80 EVs on adopting mode 3 over mode 1 and 2 with 0.95 efficiency is 79.23% and 62.36% with winter TOU rates and 46.73% and 19.57% with summer TOU rates respectively.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"51 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126356049","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: 10
Optimal Strategy for ATC Enhancement and Assessment in presence of FACTS devices and Renewable Generation 在FACTS设备和可再生能源存在下ATC增强和评估的最优策略
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771774
Devesh Shukla, S. Singh, S. Mohanty
{"title":"Optimal Strategy for ATC Enhancement and Assessment in presence of FACTS devices and Renewable Generation","authors":"Devesh Shukla, S. Singh, S. Mohanty","doi":"10.1109/NPSC.2018.8771774","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771774","url":null,"abstract":"Available Transfer Capability is determinental in facilitating operation of power system economically, reliably and securely. Advancements in the power generation techniques and shift in generation methodologies from centralized to disbursed/distributed generation with increased emphasis on renewable sources has complicated the assessment and enhancement of ATC. In this paper a multi-stage operational strategy for enhancement and assessment of ATC in the presence of renewable sources of generation and FACTS devices is presented. The developed method is implemented on Modified IEEE 24 bus test system.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127628043","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
Design, Fabrication and Electrochemical performance of Soluble Lead Redox-Flow Battery for Energy Storage 储能用可溶铅氧化还原液流电池的设计、制造及电化学性能研究
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771752
S. Kosta, R. Sneha, K. Rana
{"title":"Design, Fabrication and Electrochemical performance of Soluble Lead Redox-Flow Battery for Energy Storage","authors":"S. Kosta, R. Sneha, K. Rana","doi":"10.1109/NPSC.2018.8771752","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771752","url":null,"abstract":"Flow batteries are being considered as a potential candidate for large scale energy storage system, however, main issue with them is their higher cost due to the electrode materials and membrane used in them. In this regards, current work is focused on the development of cost effective flow batteries. In order to reduce the cost of flow batteries, low cost graphitic carbon was used for both positive and negative electrodes to fabricate the soluble lead redox flow batteries (100 cm2) without using any separator. Lead methane sulfonate (1M) and methane sulfonic acid (1M) were used as electrolytes, which plays an important role in reduction and oxidation process of redox flow batteries. The charge/discharge behavior has been studied at constant current of 500 mA, which showed an average efficiency of 79% with an initial discharge capacity of 200 mAh. The cell capacity decreases during the 14–15th cycles and becomes 110 mAh, this loss in capacity has been studied after cut down analysis of cell.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121001959","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
Multi-Objective Load Scheduling in a Smart Grid Environment 智能电网环境下的多目标负荷调度
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771842
A. Sadhukhan, S. Sivasubramani
{"title":"Multi-Objective Load Scheduling in a Smart Grid Environment","authors":"A. Sadhukhan, S. Sivasubramani","doi":"10.1109/NPSC.2018.8771842","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771842","url":null,"abstract":"Smart grid is a remarkable development for managing the existing grids more efficiently. This paper deals with an integration of distributed energy resources and plug-in electric vehicles (PEVs) into an existing grid. There are significant impacts due to PEVs in the existing grid. However they also bring negative impacts to the grid if they are not coordinated properly. The continuous varying load and voltage fluctuations caused by their disordered charging behaviour can be detrimental to the grid. In order to overcome them, an intelligent load-scheduling strategy is applied in this paper. A multi-objective optimization strategy based on non-dominated sorting genetic algorithm (NSGA-II) is used in this paper to minimize two contradicting objective functions such as voltage deviation at buses and the total line loss simultaneously. The applied method is tested on IEEE 17-bus test system. Simulation results show the superiority of the applied method.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124517896","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
Electric stress on the surface of conductors in an Extra High Voltage substation 超高压变电站导体表面的电应力
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771766
D. Harimurugan, G. S. Punekar, N. Kishore
{"title":"Electric stress on the surface of conductors in an Extra High Voltage substation","authors":"D. Harimurugan, G. S. Punekar, N. Kishore","doi":"10.1109/NPSC.2018.8771766","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771766","url":null,"abstract":"In high voltage equipment and substations, the electric field distribution on the surface of the conductor is important from the point of designing the insulation systems. In outdoor substation, the atmospheric air acts as an insulation medium and the electric-fields (e-fields) on the surface of the conductors should not exceed the breakdown strength of air (2122 kV/m rms). Based on the analysis of surface e-fields of substation conductors, one can adjudge whether any redesign in terms of conductor effective radius and clearances are required. One such analysis of surface e-fields in a 765 kV substation in central India is carried out. Charge Simulation Method (CSM) is used as a numerical technique. The surface e-field plot on the substation conductors are reported. The highest e-fields are on the surface of transmission line conductors with 1504 kV/m. Thus, the design should work corona free.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121242266","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
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