Javier A. Muñoz, F. Cadena, Patricio Gaisse, J. Guzmán, P. Acuña, P. Melín, J. Rohten
{"title":"A 27-Level asymmetric multilevel converter for harmonic currents compensation","authors":"Javier A. Muñoz, F. Cadena, Patricio Gaisse, J. Guzmán, P. Acuña, P. Melín, J. Rohten","doi":"10.1109/CPE.2017.7915229","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915229","url":null,"abstract":"This paper presents a 27-Level asymmetric multilevel shunt active power filter topology that allows the compensation of a nonlinear load, as well as the DC voltage regulation thanks to a comprehensive control strategy. The topology considers the ratio 9∶3∶1 in order to generate the AC waveform with a simple staircase modulation algorithm. The dynamic model of the proposed topology is obtained and validated with a simple open loop simulation. A suitable linear master-slave control scheme is presented in order to ensure the current tracking and the DC voltage regulation. The properness of the proposal is verified trough dynamic and stationary tests.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125962814","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}
M. Rossi, F. Dezza, M. Mauri, M. Carmeli, F. Braghin
{"title":"Rotor position estimation in a large airgap Active Magnetic Bearing","authors":"M. Rossi, F. Dezza, M. Mauri, M. Carmeli, F. Braghin","doi":"10.1109/CPE.2017.7915179","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915179","url":null,"abstract":"In recent years, Active Magnetic Bears (AMBs) becoming attractive for several reason such as frictionless rotation, high reliability and high speed operation. Moreover, AMBs are today an interesting alternative to standard bearing due to power electronics and control hardware price reduction, but the main disadvantage of AMBs is that they are design to have a small airgap and a high stiffness. This paper presents a new large airgap magnetic bearing that allows to add dumping features thanks to a dedicated control. A simplified analytical model has been introduced, a study of the airgap estimation has been presented and some experimental results are provided to validate the approach.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121719125","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}
{"title":"Analysis of energy management strategy for energy-storage type elevator based on supercapacitor","authors":"Hong-peng Liu, Kuan Liu, Baihong Sun","doi":"10.1109/CPE.2017.7915165","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915165","url":null,"abstract":"In order to save the elevator energy, the most researched method is adopting the energy storage system composed of a bidirectional DC/DC converter along with supercapacitor. The supercapacitor can effectively harness the regenerated electric power in the regenerating mode and discharge it in the motoring mode. By analyzing traffic flow model of elevators, a capacitance design method based on traffic flow difference is proposed in this paper, which can satisfy the elevator operational safety requirements and reduce the system cost. Then, control strategies of motoring mode, regenerating mode and malfunction mode are analyzed respectively by analyzing energy management strategy of DC bus voltage detection. Finally, an experimental platform of supercapacitor energy-storage type elevator was built. Experimental results validate that the system control strategy can effectively harness and allocate the harnessed energy.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129668649","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}
{"title":"Novel, multilevel converter topology for fault-tolerant operation of switched reluctance machines","authors":"J. Borecki, B. Orlik","doi":"10.1109/CPE.2017.7915200","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915200","url":null,"abstract":"This publication describes an novel fault tolerant converter for switch reluctance machines. It is proposed to take the advantages of multilevel output converter in the normal operation mode and exploit the switching states that are destructive for the conventional NPC topology and use them for fault tolerance. Moreover, simple and yet effective modulation technique has been found, modified and improved for the specific needs of the converter including the DC bus voltage balancing. The modulation technique has been tested in simulation and the results are presented.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130360660","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}
J. Rąbkowski, T. Sak, R. Strzelecki, Maciej Grabarek
{"title":"SiC-based T-type modules for multi-pulse inverter with coupled inductors","authors":"J. Rąbkowski, T. Sak, R. Strzelecki, Maciej Grabarek","doi":"10.1109/CPE.2017.7915234","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915234","url":null,"abstract":"The paper presents SiC-based three-level T-type modules designed for a high-performance 30kVA DC/AC inverter operating at high frequency 85 kHz with low THD of the output voltage. This inverter system consists of two integrated parts. The first part is active and contains three parallel-connected three-phase T-type modules built with fast-switching SiC power transistors. The second, passive part of the system is a set of inductors magnetically coupled in the system 18-pulse. Such a system is able to generate near sinusoidal output voltage without PWM operation - transistors operate at switching frequency close to output frequency. The paper discusses design issues of the module with SiC transistors including design of the gate drivers. Moreover, experiments with single phase leg operating at nominal conditions are also presented.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126439660","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}
{"title":"Improving the extent of correlation between interharmonic and voltage fluctuation measurements","authors":"B. Eidson, M. Halpin","doi":"10.1109/CPE.2017.7915144","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915144","url":null,"abstract":"Because the use of 60-W incandescent lamps is declining in parts of the world, voltage fluctuations' effects on other devices may need to be explicitly considered in international standards. The existence of international standards for measuring interharmonics and the mathematical relationship with periodic amplitude modulation has suggested interharmonics as a potential basis for broadly characterizing voltage fluctuations. But any novel approach for measuring voltage fluctuation needs to provide results consistent with present practices in addition to offering additional advantages. Therefore, the first step is demonstrating a general correlation between interharmonic measurements and currently accepted flicker severity measurements. The feasibility of demonstrating the correlation between these measurements has been explored in an earlier work. Using a magnitude-only custom interharmonic group it was concluded that measurements were strongly correlated in most cases. A closer examination of the flickermeter is made in this paper, and an improved custom interharmonic group is developed in view of a flickermeter's response to the combined effect of interharmonic pairs through phasor addition. This approach revealed strong correlation for every dataset examined. It is concluded from these results that interharmonic and lamp flicker measurements are strongly correlated in general.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127459425","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}
{"title":"FCS-MPC with PNSC reference generation method for a 3L-NPC inverter under grid faults","authors":"A. Kanaan, F. Sebaaly, H. Kanaan","doi":"10.1109/CPE.2017.7915173","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915173","url":null,"abstract":"Nowadays, grid faults consist anxious problem for grid inverters controller design. Conventional controllers are based on linear regulators such as PI and PR. This paper proposes a model predictive algorithm based on PNSC reference generation method to control the 3L-NPC inverter under grid voltage sags. The novel algorithm allows the easy inclusion of system nonlinearities, thus no additional fine tuning parameters are required. Moreover, no additional phase-locked loop synchronization technique is needed, reducing system complexity. A SOGI filter is added for voltage sequences extraction. The overall discrete model of the system is developed. Two-step horizon MPC algorithm is introduced for time delay compensation. Simulation results show the advantages of the proposed technique in terms of low harmonic line current content, low switching frequency operation, DC voltages balancing, good dynamic response and robustness to grid sags.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126214072","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}
S. Rahman, M. Meraj, A. Iqbal, L. Ben‐Brahim, R. Alammari, H. Abu-Rub
{"title":"Failure mode analysis for single-phase Multi-level qZSI interfacing PV system to utility grid","authors":"S. Rahman, M. Meraj, A. Iqbal, L. Ben‐Brahim, R. Alammari, H. Abu-Rub","doi":"10.1109/CPE.2017.7915223","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915223","url":null,"abstract":"Cascaded Multi-level inverter for synchronization of power generated from PV system to utility grid is reported in this paper. Inverters are prone to several types of faults e.g. switch failure or dc link capacitor failure. Failure mode analysis of cascaded H-Bridge is widely discussed in the literature. Various methods for post-fault operation with reduced capacity (due to module failure) but with balanced three-phase grid current has been proposed. Quasi Z Source Inverter with its unique capability of boosting the input voltage has become quite popular in solar PV applications. Implementation of Multi-level qZSI for grid synchronization has also been proposed. In this paper, control algorithm for the operation of Multi-level qZSI with module failures (up to three modules out of total 16) is discussed. The power deficit due to a failure of the module is reflected as a decrease in the grid current reference. The grid current injected will meet the THD requirement (< 5% THD) in the post-fault condition. To verify the proposed control algorithm, simulation results are presented and discussed.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128918778","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}
Jaime Prieto Thomas, P. Revuelta, A. P. Vallés, S. P. Litrán
{"title":"Assessment on apparent power indices with hybrid active power filters","authors":"Jaime Prieto Thomas, P. Revuelta, A. P. Vallés, S. P. Litrán","doi":"10.1109/CPE.2017.7915166","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915166","url":null,"abstract":"This paper presents a method for assessing the quality improvement of the electric power, when compensation equipment based on hybrid active power filters is applied. Power quality indicators that allow to separate the contribution to unbalance of each harmonic and interharmonic of voltages and currents are introduced, calculated with an enhanced procedure. To characterize the behavior of these indices, a hybrid series - active parallel - passive filter, SAPPF, is used for the compensation of a load in a system with unbalance and distortion. The results obtained with the practical cases have allowed to verify the validity of the proposed procedure, and to clarify the interpretation of the unbalance and harmonic distortion indices with this kind of compensation.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122457602","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}
{"title":"Hybrid magnetics and power applications","authors":"W. K. Mo, Kasper M. Passch","doi":"10.1109/CPE.2017.7915175","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915175","url":null,"abstract":"A hybrid magnetic approach, merging two different magnetic core properties such as ferrite and iron powder cores, is an effective solution for power converter applications. It can offer similar magnetic properties to that of magnetic powder cores but showing less copper loss than powder cores. In order to prevent ferrite core saturation, placing an effective air gap within the ferrite core is a key method to obtain optimum hybrid magnetic performance. Furthermore, a relatively large inductance at low loading current is an excellent way to minimize power loss in order to achieve high efficiency operation and energy saving.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125801714","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}