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Dead-time Effect on the Leakage Current of Grid Connected Single-Phase Photovoltaic Inverter 死区时间对并网单相光伏逆变器漏电流的影响
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621461
A. Balikci, Eyup Akpinar, Enes Durbaba, Ali Eren Kocamis, Buket Turan Azizoğlu
{"title":"Dead-time Effect on the Leakage Current of Grid Connected Single-Phase Photovoltaic Inverter","authors":"A. Balikci, Eyup Akpinar, Enes Durbaba, Ali Eren Kocamis, Buket Turan Azizoğlu","doi":"10.1109/EPEC52095.2021.9621461","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621461","url":null,"abstract":"The transformerless photovoltaic (PV) inverters are preferred in the PV systems because of its higher efficiency and lower cost. Due to the lack of galvanic isolation between the grid and PV panel, the leakage current flows through the parasitic capacitance of PV panel and the grounded neutral point of the power transformer. Since the high-frequency components on the common-mode (CM) voltage is the main source for this current, the switching logic of devices in the PV inverter is usually arranged to suppress the leakage current circulation below the limit of safety standards. The dead-time is also a parameter of CM voltage waveform. The smaller dead-time of the wide-bandgap device GaN HEMT is considered as the advantage on the leakage current mitigation. It is experimentally investigated on the single-phase active clamped snubber-based inverter (ACSBI) topology here. The results with IGBT and GaN HEMT devices used in the ACSBI are compared in this paper.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132703718","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
A Techno-economic Investigation for the Application of Second-Life Electric Vehicle Batteries for Behind-The-Meter Services 二次寿命电动汽车蓄电池在电表后服务中的应用技术经济研究
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621638
A. Fazeli, Martin Stadie, M. Kerner, K. Poplavskaya, H. Nagaoka, Judith Kapeller, J. Kathan, Andre Burger, Florian Jomrich
{"title":"A Techno-economic Investigation for the Application of Second-Life Electric Vehicle Batteries for Behind-The-Meter Services","authors":"A. Fazeli, Martin Stadie, M. Kerner, K. Poplavskaya, H. Nagaoka, Judith Kapeller, J. Kathan, Andre Burger, Florian Jomrich","doi":"10.1109/EPEC52095.2021.9621638","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621638","url":null,"abstract":"Energy Storage is expected to play a significant role in realization of a Smart Grid paradigm. Energy storage devices can compensate for the variation and shortfall of the output from stochastic renewable generation. They can participate and provide different types of grid services, alleviate peak demand, and maximize self-consumption for the end user. Once Electric Vehicle (EV) batteries reach their end of life for utilization inside a vehicle, they may still have sufficient capacity to be used as a Battery Energy Storage System (BESS) in second life. In this paper we present research outcomes showing the cost benefit analysis for operating EV batteries in second life for Behind the Meter (BTM) services for residential, fleet, and commercial customers. Our investigation has shown that there may be a viable case specially when there is preexisting co-located renewable generation on customer site.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124103700","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
Modeling and Control of Solar PV System Combined with Battery Energy Storage System 太阳能光伏系统与蓄电池储能系统结合的建模与控制
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621564
Mahmoud M. Badreldien, Mohamed Abuagreb, Mohammed F. Allehyani, B. Johnson
{"title":"Modeling and Control of Solar PV System Combined with Battery Energy Storage System","authors":"Mahmoud M. Badreldien, Mohamed Abuagreb, Mohammed F. Allehyani, B. Johnson","doi":"10.1109/EPEC52095.2021.9621564","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621564","url":null,"abstract":"The sun is the main source for much of power in our global system. So, the research activities in solar systems should be endless, especially with the high cost and pollution problems caused by the conventional power sources. This paper presents modeling, control of a solar photovoltaic system using a maximum power point tracking technique. Because of the intermittent nature of the solar irradiation, an energy storage system is connected in parallel with the PV system. The proposed system in this paper includes a battery energy storage system and the required DC-DC and DC-AC controllers. Different scenarios have been studied such as changing irradiation levels at a fixed load and load variation at a certain irradiation value to verify the control response of the proposed system. The control systems modeled in the d-q reference frame for controlling the active and reactive power from the system is been simulated using electromagnetic transient simulation to verify the system operation.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116215332","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
A state-observer based controller for CCM flyback converters with constant power loads 恒功率负载下CCM反激变换器的状态观测器控制
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621682
M. Srinivasan
{"title":"A state-observer based controller for CCM flyback converters with constant power loads","authors":"M. Srinivasan","doi":"10.1109/EPEC52095.2021.9621682","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621682","url":null,"abstract":"This paper proposes a controller for a continuous conduction mode (CCM) flyback converter supplying constant power loads (CPL)s. The controller is implemented in two stages and is based on sensing only the output voltage of the converter. The inner loop implements active damping by performing feedback of core/air-gap flux in order to damp limit cycle oscillations due to CPL. To overcome the challenge of sensing and feedback of a magnetic quantity, a state observer is implemented. To compensate for voltage deviation due to active damping and to perform voltage regulation, an integral controller is added in the outer loop. Reasonable assumptions are made to the system to derive the state observer while also maintaining model accuracy. The controller achieves exponential stability and the stability conditions are derived. Simulation results show that the proposed observer tracks the state variables accurately and also verifies the validity of the control approach.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"199 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114098912","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
Performance Comparison of Fuzzy Logic and Deep Learning algorithms for fault detection in electrical power transmission system 模糊逻辑和深度学习算法在电力传输系统故障检测中的性能比较
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621580
Nouha Bouchiba, A. Kaddouri
{"title":"Performance Comparison of Fuzzy Logic and Deep Learning algorithms for fault detection in electrical power transmission system","authors":"Nouha Bouchiba, A. Kaddouri","doi":"10.1109/EPEC52095.2021.9621580","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621580","url":null,"abstract":"This paper introduces a performance comparison of deep-learning and fuzzy-logic algorithms for power system fault detection. The interconnected IEEE 14-bus transmission power network is considered. Ten faults are integrated and simulated using SimPowerSystems toolbox in Matlab. For each fault condition, each bus voltage and current RMS values were measured in order to test both algorithms. Simulation results show the effectiveness of the deep-learning algorithm with a 100% accuracy in predicting faults compared with fuzzy logic.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125398362","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
Dynamic Performance Improvement of Brushless DC Motors Using a Hybrid MTPV/MTPA Control 利用MTPV/MTPA混合控制改善无刷直流电机动态性能
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621734
J. Zhou, S. Ebrahimi, J. Jatskevich
{"title":"Dynamic Performance Improvement of Brushless DC Motors Using a Hybrid MTPV/MTPA Control","authors":"J. Zhou, S. Ebrahimi, J. Jatskevich","doi":"10.1109/EPEC52095.2021.9621734","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621734","url":null,"abstract":"Brushless dc (BLDC) motors are widely utilized in many applications. The classical maximum torque per ampere (MTPA) and maximum torque per voltage (MTPV) control strategies are commonly used with BLDC motors due to being straightforward and easy to implement. However, these classical control techniques have their own drawbacks. Specifically, the MTPA achieves high efficiency in steady-state but does not fully utilize the torque capability during transients. Meanwhile, the MTPV allows faster dynamic response but degrades the efficiency in steady-state conditions. To fully exploit the advantages of both methods, this paper proposes a new combined control scheme which utilizes MTPA and/or MTPV methods based on the operating conditions. Specifically, during steady-state operation, the MTPA is adopted due to its high efficiency, while the controller smoothly converts to the MTPV in transients to fully exploit the torque capability and achieve faster dynamic response. The proposed hybrid control method is demonstrated on an example industrial BLDC motor and is shown to achieve high efficiency in steady-state (similar to MTPA) and fast dynamic response (similar to MTPV).","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"448 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124288473","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
Interleave-Modes on a DC-DC Converter Using Three-Phase Transformer with Zero-Phase Current 零相电流三相变压器DC-DC变换器的交错模式
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621450
Y. Itogawa, T. Amimoto, Y. Kawai, K. Izumi
{"title":"Interleave-Modes on a DC-DC Converter Using Three-Phase Transformer with Zero-Phase Current","authors":"Y. Itogawa, T. Amimoto, Y. Kawai, K. Izumi","doi":"10.1109/EPEC52095.2021.9621450","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621450","url":null,"abstract":"In this paper, interleave operation modes of a high frequency isolation circuit using zero-phase current of a three-phase transformer is studied. In the proposed circuit scheme, the amount of power transmission between the primary and secondary bus bars is controlled by the phase difference between the voltages output by the primary and secondary circuits. The proposed circuit system also controls the voltage ratio between the primary power supply and the primary bus bar voltage by the duty ratio output by the primary side. By adjusting the primary bus bar voltage, the proposed circuit method can regulate the amount of current flowing through the three-phase transformer, and can both superimpose the current to achieve soft switching and suppress the conduction loss. In this paper, the interleave operation modes of the proposed circuit system is analyzed to clarify the conditions for achieving soft switching. In this paper, the conditions for achieving soft-switching in the interleave operation modes are investigated and the operation is verified by simulation. The proposed circuit has a wide soft-switching area especially in the low power range, and it can be effectively used in the demand and supply adjustment applications where small charge and discharge operations are frequently required.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"322 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325975","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
A Design for an Urban Electricity Market to Reduce the Expansion of the Low Voltage Distribution Grid 减少低压配电网扩建的城市电力市场设计
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621759
Franz Teske, Iris Wittl, Felix Funk, Adrian Fehrle, J. Franke
{"title":"A Design for an Urban Electricity Market to Reduce the Expansion of the Low Voltage Distribution Grid","authors":"Franz Teske, Iris Wittl, Felix Funk, Adrian Fehrle, J. Franke","doi":"10.1109/EPEC52095.2021.9621759","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621759","url":null,"abstract":"The transition from a centralized to a decentralized energy system is driven by prosumers, i.e., private households who operate flexible decentralized energy systems (DES). The demand and supply peaks resulting from their volatile consumption and generation can lead to grid bottlenecks and thus make expensive grid expansion necessary. Therefore, various approaches to use the existing power grid more efficiently by controlling private DES are being researched. In this paper, we propose a smart market platform (SMP) that reduces the need for grid expansion and incentivizes prosumer participation. The SMP also avoids grid congestions in the short term and provides suitable investment incentives in the long term. We conduct a scenario analysis to demonstrate that even using limited grid infrastructure, energy demands can be met in most scenarios. Our results show that market-based and decentralized coordination of control measures to reduce grid expansion can achieve advantages over existing solutions. These include more efficient asset dispatch in the short term, long-term investment incentives and, integration of different DES as well as individual needs of prosumers.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116438849","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: 5
A Study on AC Resistance Calculation of Single Rectangular Conductors 单矩形导体交流电阻计算的研究
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621700
B. Tabei, A. Ametani, A. Gole, B. Kordi
{"title":"A Study on AC Resistance Calculation of Single Rectangular Conductors","authors":"B. Tabei, A. Ametani, A. Gole, B. Kordi","doi":"10.1109/EPEC52095.2021.9621700","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621700","url":null,"abstract":"This paper presents a study on calculating the ac resistance of single rectangular conductors using finite element method (FEM), considering a quasi-static approximation. Different analytical approximations for ac resistance of rectangular conductors are also presented, and their accuracy with different conductor thicknesses are examined by comparison with FEM results. Two examples are considered: a very thin rectangular conductor, and a square conductor. A transient simulation is performed using the square conductor to investigate the effect of different ac resistant calculations on damping in the time domain simulation. This work would help in appropriate selection of analytical approximation of ac resistance of rectangular conductors for engineering applications depending on the thickness of conductors.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132896780","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
Distribution Transformer kVA Load Estimation Using Smart Meter Data 利用智能电表数据估算配电变压器千伏安负荷
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621719
H. M. Usman, R. ElShatshat, A. El-Hag
{"title":"Distribution Transformer kVA Load Estimation Using Smart Meter Data","authors":"H. M. Usman, R. ElShatshat, A. El-Hag","doi":"10.1109/EPEC52095.2021.9621719","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621719","url":null,"abstract":"This paper presents a hardware-free novel strategy for a distribution transformer kVA load estimation, without requiring a fixed power factor assumption or reactive power load information across residential electricity consumers. The proposed strategy provides a simple and effective fixed-point iteration-based formulation for a balanced secondary distribution network. The efficacy and a detailed statistical analysis of the proposed scheme are studied on a balanced secondary distribution system against 1,000 random load profiles through Monte-Carlo simulations which represent uncertainty in smart meter data. The results indicate that the proposed scheme provides better results in comparison to fixed power assumptions for a distribution transformer kVA load estimation, and the results from this work may contribute to further smart-grid applications.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114394398","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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