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Kalman Filter Based Approach for ZIP Load Modeling for Aggregate Loads 基于卡尔曼滤波的压缩负荷建模方法
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/kpec51835.2021.9446202
Yiqi Zhang, Y. Liao, Evan S. Jones, N. Jewell, D. Ionel
{"title":"Kalman Filter Based Approach for ZIP Load Modeling for Aggregate Loads","authors":"Yiqi Zhang, Y. Liao, Evan S. Jones, N. Jewell, D. Ionel","doi":"10.1109/kpec51835.2021.9446202","DOIUrl":"https://doi.org/10.1109/kpec51835.2021.9446202","url":null,"abstract":"Constant impedance, constant current, constant power (ZIP) load modeling has been used in various power system applications. It is of great interest to accurately estimate ZIP parameters. This paper presents the Kalman filtering based technique for estimating load ZIP parameters. In addition, aggregate load modeling is a common practice in utility companies. However, there are certain factors that can affect estimation results. This paper formulates the aggregate ZIP load modeling and provides insights into the effects of load connections and voltage unbalance on ZIP load modeling. The effects of voltage unbalance and load connection type on ZIP load estimation are illustrated through examples. Representative case studies based on the IEEE 34-bus system built in OpenDSS are reported.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126008045","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
Design and Analysis of Zero Current switching Y-Source DC/DC Converter for Renewable Energy Applications 可再生能源零电流开关y源DC/DC变换器的设计与分析
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446246
Harinaik Sugali, Shelas Sathyan
{"title":"Design and Analysis of Zero Current switching Y-Source DC/DC Converter for Renewable Energy Applications","authors":"Harinaik Sugali, Shelas Sathyan","doi":"10.1109/KPEC51835.2021.9446246","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446246","url":null,"abstract":"In this paper, a soft switched Y source dc-dc converter with continuous input current (CIC) is proposed for renewable energy sources such as solar photovoltaic systems (PV) and fuel cells. This isolated Y-source boost converter consists of tightly coupled three winding inductors for high voltage gain. By utilizing the transformer's parasitic capacitance and leakage inductance, the proposed converter achieves zero current switching (ZCS) for all MOSFETs and all diodes in the bridge rectifier. Hence, high frequency operation is feasible with good efficiency. The on-time (${T}_{ST}$) of the Y-source dc-dc converter was kept constant to achieve ZCS under various input voltage. This converter enhances all the features of the conventional impedance source converter. With a limited shoot-through duty ratio $(mathrm{d}_{mathrm{ST}})$, the proposed converter is capable of achieving significant voltage gain.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131655011","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
Nash bargaining based mechanism for allocating cooperative surplus from joint planning between electric vehicle charging stations and the distribution network 基于纳什议价的电动汽车充电站与配电网联合规划合作剩余分配机制
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446253
Qiang Li, Hongtao Ren, F. Wen, Zhan Liu, Chongyu Wang
{"title":"Nash bargaining based mechanism for allocating cooperative surplus from joint planning between electric vehicle charging stations and the distribution network","authors":"Qiang Li, Hongtao Ren, F. Wen, Zhan Liu, Chongyu Wang","doi":"10.1109/KPEC51835.2021.9446253","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446253","url":null,"abstract":"The total profits of electric vehicle charging stations (EVCSs) and the concerned distribution network (DN) can be improved through joint planning. To encourage the cooperation between EVCSs and the DN on joint planning, reasonable allocation of benefits such attained is highly demanded. Given this background, a Nash bargaining based allocation mechanism for cooperative surplus/benefit gained from joint planning between EVCSs and the DN is presented. The allocation of the cooperative surplus to the EVCSs can be achieved by adjusting the price of electricity. The proposed allocation mechanism for cooperative surplus is demonstrated by an actual example in China.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131867199","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
Techno-Economic Assessment of Voltage Stability Improvement Using SSSC and STATCOM in a Wind-Dominated Power System 利用SSSC和STATCOM提高风力发电系统电压稳定性的技术经济评价
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446260
Pierre O. Dorile, Daniel R. Jagessar, R. McCann
{"title":"Techno-Economic Assessment of Voltage Stability Improvement Using SSSC and STATCOM in a Wind-Dominated Power System","authors":"Pierre O. Dorile, Daniel R. Jagessar, R. McCann","doi":"10.1109/KPEC51835.2021.9446260","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446260","url":null,"abstract":"The wind penetration level into the traditional existing transmission grid is posing new voltage stability challenges to Transmission System Operators. Wind power plants are required to meet the reactive power demands and the voltage control strategy. Shunt and Series FACTS devices are being used to increase the maximum transfer capability of a transmission line and the improvement of voltage stability. With the use of the aforementioned, voltage magnitudes, phase angles, and line impedances can be controlled. Worldwide, electric utilities use five popular types of FACTS devices for this purpose: STATCOM, SSSC, TCSC, SVC, and UPFC. For an electric utility, it would be practical if the voltage stability criterion is met using the most beneficial FACTS device. In this paper, the amelioration of the steady-state voltage stability of a wind-dominated power system using STATCOM and SSSC is compared in a modified IEEE-14 bus system. CCT amelioration with the use of SSSC is pointed out. Improvement of the loading margin of the weakest bus of the system is done by using STATCOM. Finally, some conclusions about the use of STATCOM and SSSC for voltage stability and power flow followed by the economic feasibility of the proposed solution are provided.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115063200","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
Ant-Lion Optimizer algorithm based Fractional order Proportional-Integral-Derivative controllers for islanded operation of an inverter based microgrid 基于蚁狮优化算法的逆变微电网孤岛运行分数阶比例-积分-导数控制器
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446266
Srikanth Bondalapati, A. Chandel
{"title":"Ant-Lion Optimizer algorithm based Fractional order Proportional-Integral-Derivative controllers for islanded operation of an inverter based microgrid","authors":"Srikanth Bondalapati, A. Chandel","doi":"10.1109/KPEC51835.2021.9446266","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446266","url":null,"abstract":"In the present work an Ant-Lion Optimizer (ALO) based Fractional Order PID (FOPID) controllers are used in an islanded voltage source inverter (VSI) based microgrid system to maintain the grid node voltages at the set values. To demonstrate the effectiveness of the designed FOPIDs a 3-bus microgrid system has been designed having three Distributed Generators (DGs). ALO technique tunes the FOPID controller's parameters thereby, providing the desired node voltages and the grid frequency even when the system undergoes different operating conditions. The controller's performance is assessed for disturbances like switching of loads. Subsequently, comparison of performance between ALO based FOPID controllers with other types of controllers such as PSO based FOPID controllers have been carried out. The results show that the ALO based FOPID controllers exhibit improved performance of the microgrid.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"46 27","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120836351","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
Selective Harmonic Elimination in a Cascaded H-Bridge Multilevel Inverter fed by High-Frequency Isolated DC-DC Converter 高频隔离DC-DC变换器级联h桥多电平逆变器的选择性谐波消除
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446223
Amirhossein Pourdadashnia, Milad Sadoughi, M. Farhadi‐Kangarlu, B. Tousi
{"title":"Selective Harmonic Elimination in a Cascaded H-Bridge Multilevel Inverter fed by High-Frequency Isolated DC-DC Converter","authors":"Amirhossein Pourdadashnia, Milad Sadoughi, M. Farhadi‐Kangarlu, B. Tousi","doi":"10.1109/KPEC51835.2021.9446223","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446223","url":null,"abstract":"In recent years, the use of multilevel inverter has become popular due to its many advantages. Due to the popularity of multilevel inverters in industries and in applications that require a wide range of voltages, there have been many challenges to achieve high-quality voltage. Many pieces of research have been done to solve the problem of annoying harmonics in multilevel inverters. In this study, pulse width modulation (PWM) has been proposed as a switching method. Using the Selective Harmonic Elimination (SHE) technique, the inverter switching can be carried out in low frequency, and also, this method can reduce the annoying harmonics significantly. However, in the lower modulation index, eliminating such harmonics is challenging, resulting in a considerable increase in output voltage distortion. This study suggests a way to solve the problem. In this research, eliminating selected harmonics in a multilevel inverter with variable DC links is proposed. The DC-link variable method in this study is to use a high-frequency isolated DC-DC converter. The proposed method is verified on a 5-level Cascaded H-Bridge (CHB) inverter using the SHE-PWM method solved by particle swarm optimization (PSO) algorithm.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121334952","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: 4
Wind Power Prediction in Different Months of the Year Using Machine Learning Techniques 利用机器学习技术预测一年中不同月份的风力发电
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446205
Kesh Pun, Saurav M. S. Basnet, W. Jewell
{"title":"Wind Power Prediction in Different Months of the Year Using Machine Learning Techniques","authors":"Kesh Pun, Saurav M. S. Basnet, W. Jewell","doi":"10.1109/KPEC51835.2021.9446205","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446205","url":null,"abstract":"Integration of wind power into the grid has been rapidly increasing at both the transmission as well as distribution levels. Wind power generation is variable, nonlinear, and intermittent in nature. The monthly average and maximum wind power generation vary over the year. To effectively integrate wind power into the grid, it is vital to provide forecasting for different months. Therefore, the machine learning technique has been applied to forecast the wind power generation for each month separately. Its accuracy, root mean square error (RMSE), mean absolute error (MAE), and standard deviation (SD) of forecasting error have been analyzed for every month and the whole year.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"52 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123705513","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
Analysis of a Non-Isolated Interleaved DC-DC Boost Converter with a Voltage Doubler Cell in Discontinuous Conduction Mode 断续导通模式下带倍压单元的非隔离交错DC-DC升压变换器分析
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446261
Mohammad R. Altimania
{"title":"Analysis of a Non-Isolated Interleaved DC-DC Boost Converter with a Voltage Doubler Cell in Discontinuous Conduction Mode","authors":"Mohammad R. Altimania","doi":"10.1109/KPEC51835.2021.9446261","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446261","url":null,"abstract":"This paper presents an investigation of discontinuous conduction mode (DCM) of a two-phase interleaved dc-dc boost converter with a voltage doubler cell. Comparing to the conventional boost converters, the proposed converter in DCM can easily achieve a high voltage gain with continuous input current and with lower voltage stress on components. These features give the proposed converter the advantage to be used in many applications, especially renewable energy applications. The topology is simulated to verify the steady-state analysis. Moreover, experimental validation is presented to verify the mathematical analysis and simulation results. The overall results of the calculations, simulations, and experiments prove the validity of the proposed analysis of the topology in DCM.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129379931","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
Transients based Faulted Feeder Identification for Ungrounded Power Distribution Systems with Distributed Generations 基于暂态的分布式配电系统故障馈线识别
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446244
Y. Liao
{"title":"Transients based Faulted Feeder Identification for Ungrounded Power Distribution Systems with Distributed Generations","authors":"Y. Liao","doi":"10.1109/KPEC51835.2021.9446244","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446244","url":null,"abstract":"Single phase faults in ungrounded power distribution systems cause small fault currents and are thus hard to locate. Besides, more and more distributed generations especially renewable generations are integrated into the power grid. The fundamental frequency short circuit current contributed by distributed generations (DG) could be small, and hence it is challenging to use overcurrent protection to protect distribution systems with DGs. This paper proposes a new travelling wave based protection method for identifying the faulted feeder. Traveling wave is generated by the faults and travels to the feeder head. Recording and analysis of the traveling wave features can help decide the faulted feeder. To increase the robustness and fault tolerance, Bayesian inference method is applied to combine prior information about feeder fault probability and IED recordings to determine the actual faulted section. The method is versatile and is applicable to feeders with or without DGs.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130032911","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
Analysis and stabilization of CCM flyback converters supplying constant power loads 恒功率负载CCM反激变换器的分析与稳定
2021 IEEE Kansas Power and Energy Conference (KPEC) Pub Date : 2021-04-19 DOI: 10.1109/KPEC51835.2021.9446229
M. Srinivasan
{"title":"Analysis and stabilization of CCM flyback converters supplying constant power loads","authors":"M. Srinivasan","doi":"10.1109/KPEC51835.2021.9446229","DOIUrl":"https://doi.org/10.1109/KPEC51835.2021.9446229","url":null,"abstract":"This paper proposes a control scheme for stabilization and voltage regulation of a continuous conduction mode (CCM) flyback converter supplying constant power loads (CPL)s. A two-stage controller is proposed for the non-linear system. The first stage involves inserting a virtual resistor in series with the primary winding of the flyback transformer. The virtual resistance, inserted through control action damps limit cycle oscillations due to CPL. This stage is referred to as active damping stage. The second stage enables voltage restoration and performs voltage regulation in the event of source and load variations. This stage is referred to as voltage compensation stage. Stability conditions are derived for equilibrium points. A method to choose one of the control parameters to minimize the output capacitance of the converter is proposed. Simulation results are presented using both averaged and switched models to verify the proposed control scheme.","PeriodicalId":392538,"journal":{"name":"2021 IEEE Kansas Power and Energy Conference (KPEC)","volume":"57 Suppl 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129897514","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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