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Unbalanced operation of current regulated sine-wave interior permanent magnet machines 电流调节正弦波内装永磁电机的不平衡运行
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617753
I. Brown, D. Ionel, D. Dorrell
{"title":"Unbalanced operation of current regulated sine-wave interior permanent magnet machines","authors":"I. Brown, D. Ionel, D. Dorrell","doi":"10.1109/ECCE.2010.5617753","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617753","url":null,"abstract":"The behavior of rotor eccentricities in current regulated interior permanent magnet (IPM) machines is investigated. The study focuses on two typical topologies of significant industrial relevance, i.e. machines with distributed windings with two slots per pole and phase and motors with concentrated coils and with three slots per pole pair, respectively. The effect of stator winding parallel paths is examined for both cases. Coil and terminal electrical quantities, radial forces, and torque ripple were simulated using FEA. Unbalanced operation, where the currents are not equal in parallel phase connections due to the eccentricity, is also investigated. Experimental measurements of electrical quantities and forces with static eccentricity are carried out with two special test fixtures. The experimental measurements validated the simulation results.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130579726","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
Core loss prediction using magnetic circuit model for fractional-slot concentrated-winding interior permanent magnet machines 用磁路模型预测分数槽集中绕组内部永磁电机铁芯损耗
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617873
J. Tangudu, T. Jahns, A. El-Refaie
{"title":"Core loss prediction using magnetic circuit model for fractional-slot concentrated-winding interior permanent magnet machines","authors":"J. Tangudu, T. Jahns, A. El-Refaie","doi":"10.1109/ECCE.2010.5617873","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617873","url":null,"abstract":"This paper presents a promising technique for estimating the cores losses of a fractional-slot concentrated-winding (FSCW) interior permanent magnet (IPM) machine using a simplified lumped-parameter magnetic circuit model (MCM). This model incorporates several key nonlinear phenomena including (i) magnetic saturation; (ii) cross-saturation effects between the d- and q-axes affecting both flux linkages and inductances; (iii) stator slotting effects; and (iv) localized effects due to rotor bridges. The MCM is configured to predict the flux densities waveforms in the iron as the rotor rotates. Fourier transformation is then applied to extract the frequency components of the flux density in each iron core permeance element, followed by estimation of the losses in each element. These permeance losses can then be combined to provide the estimated iron losses in the total core. Very good agreement is demonstrated between core loss predictions delivered by this model for a target FSCW-IPM machine and those provided by finite element (FE) analysis.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132899993","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: 22
Simulation of auxiliary electrical system working conditions during power plant transition to house load operation 电厂转负荷运行辅助电气系统工况模拟
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618083
J. Buchta, M. Pawlik, R. Szubert
{"title":"Simulation of auxiliary electrical system working conditions during power plant transition to house load operation","authors":"J. Buchta, M. Pawlik, R. Szubert","doi":"10.1109/ECCE.2010.5618083","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618083","url":null,"abstract":"The paper presents analysis of operational conditions of auxiliary electrical system of power plant during load shedding by generation unit. Load shedding of power unit refers to the situation in which generation unit is disconnected from a grid when frequency falls below preset level and power unit safeguards auxiliary service supply in order to be able to restore power system after its blackout. Detailed analysis of auxiliary power system operation is advisable for operational reasons. The paper presents results of simulation performed for 360 MW power unit during load shedding. Matlab-Simulink environment has been applied to prepare simulation.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130261920","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
Low voltage ride-through of wind turbine based on interior Permanent Magnet Synchronous Generators sensorless vector controlled 基于内置永磁同步发电机无传感器矢量控制的风电机组低压穿越
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617956
M. Rizo, Ana Rodríguez, E. Bueno, F. Rodríguez, C. Giron
{"title":"Low voltage ride-through of wind turbine based on interior Permanent Magnet Synchronous Generators sensorless vector controlled","authors":"M. Rizo, Ana Rodríguez, E. Bueno, F. Rodríguez, C. Giron","doi":"10.1109/ECCE.2010.5617956","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617956","url":null,"abstract":"The importance of Wind Turbines based on Permanent Magnet Synchronous Generators (PMSG) has been increasing over the last years due to, fundamentally, its high efficiency. Fulfilling low voltage ride-through (LVRT) requirements is mandatory to guarantee the stability of the power systems under voltage dips, especially, in scenarios with high penetration of wind energy like Spain, Denmark, Germany, etc. This paper is focused on satisfying LVRT restrictions controlling both active and reactive powers delivered to the grid according to the more relevant grid codes. To achieve these requirements, this work proposes a method where kinetic energy storage in the turbine blades is carried out. DC active crowbar (braking chopper) is added in the converter, and, lastly, pitch angle control is used under long voltage dips. A control scheme, which emphasizes the regulation of the DC-link voltage, is designed and simulated in a Wind Turbine (WT) based on PMSG of 1MW with sensorless control.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130429816","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: 23
Compensation of analog rotor position errors due to nonideal sinusoidal encoder output signals 非理想正弦编码器输出信号引起的模拟转子位置误差补偿
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618432
S. H. Hwang, J. H. Lee, J. M. Kim, C. Choi
{"title":"Compensation of analog rotor position errors due to nonideal sinusoidal encoder output signals","authors":"S. H. Hwang, J. H. Lee, J. M. Kim, C. Choi","doi":"10.1109/ECCE.2010.5618432","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618432","url":null,"abstract":"This paper proposes a compensation algorithm of analog rotor position errors due to nonideal sinusoidal encoder signals. The position sensors such as resolvers or incremental encoders are being replaced by sinusoidal encoders that offer much higher resolution. However, the periodic position errors are generated by the gain and offset errors between sine and cosine signals. In this paper, the effects of the gain and offset errors are analyzed by using dq-axis component. The analog position errors can be easily corrected by integral operation of the d-axis component. Therefore, the proposed algorithm does not need additional hardware and much computation time. The validity of the proposed algorithm is verified through experimental results.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130452535","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: 14
High voltage matrix converter topology for multi-system locomotives 多系统机车高压矩阵变换器拓扑结构
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618102
P. Drábek, M. Pittermann, M. Cédl
{"title":"High voltage matrix converter topology for multi-system locomotives","authors":"P. Drábek, M. Pittermann, M. Cédl","doi":"10.1109/ECCE.2010.5618102","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618102","url":null,"abstract":"This paper presents research motivated by industrial demand for special novel high voltage traction drive topology devoted to minimization of traction transformer weight against classical locomotives operates on both trolley voltages of 25kV/50Hz and 15kV/16⅔Hz. The main attention has been given to the special traction drive topology for AC power systems: input high voltage trolley line converter (single phase matrix converter) - middle frequency transformer - middle voltage output traction converter (1f active rectifier+3f VSI) - traction motor. This contribution describes in detail proposed new control strategy of novel high voltage traction drive topology with single-phase matrix converter using controller of the phase shift angle between the trolley wire voltage and current. Input high voltage converter consists of several matrix converters to spread input high trolley voltage to each matrix converter. The theoretical conclusions and simulation results of serial matrix converters connection are compared with extensive series of experimental measurements on laboratory model with rated power of 4kVA.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127908705","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
Three-phase bidirectional DC-DC converter with enhanced current sharing capability 具有增强电流共享能力的三相双向DC-DC变换器
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617850
Zhan Wang, Hui Li
{"title":"Three-phase bidirectional DC-DC converter with enhanced current sharing capability","authors":"Zhan Wang, Hui Li","doi":"10.1109/ECCE.2010.5617850","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617850","url":null,"abstract":"Current unbalance is an important issue in multiphase dc-dc converters. In this paper, three types of three-phase bidirectional dc-dc converters are introduced. Comparing to other two types of converters, the Y-connection type converter reduces the current mismatch significantly due to the inherent current sharing capability. To additionally alleviate current mismatch, a small signal method is applied to derive the relationship between phase shift angle and the transformer current. Based on the analysis, a closed loop control strategy and RPC (Ratio Presetting Controller) method are developed to enhance current sharing capability. Simulation and experimental results on a 6 kW prototype are presented to verify the proposed method.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131242788","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: 21
Improvement of power quality for PMSG wind turbine systems PMSG风力发电系统电能质量的改进
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618073
T. Nguyen, Dong-Choon Lee, Seung-Ho Song, Eel-Hwan Kim
{"title":"Improvement of power quality for PMSG wind turbine systems","authors":"T. Nguyen, Dong-Choon Lee, Seung-Ho Song, Eel-Hwan Kim","doi":"10.1109/ECCE.2010.5618073","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618073","url":null,"abstract":"This paper proposes an LVRT (low-voltage ride-through) of multi-pole permanent-magnet synchronous generator (PMSG) for wind turbine systems under the grid fault condition and varying wind speed using the energy storage system (ESS) and braking chopper (BC). The proposed topology can reduce the ESS power rating and improve the output performance. A detailed design procedure and control strategy for the ESS and BC are presented. The PSIM simulation results prove that the proposed system can give the ride-through capability and power smoothening for the PMSG wind turbine system. The validity of the proposed system is also verified by experiment results.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131356254","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: 33
Output DC voltage and power control of a flux strengthening IPM generator and a quick speed acceleration of a high speed SPM motor 磁通强化IPM发电机输出直流电压和功率控制及高速SPM电机的快速加速
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617984
Yuta Iwai, A. Ogawa, A. Chiba
{"title":"Output DC voltage and power control of a flux strengthening IPM generator and a quick speed acceleration of a high speed SPM motor","authors":"Yuta Iwai, A. Ogawa, A. Chiba","doi":"10.1109/ECCE.2010.5617984","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617984","url":null,"abstract":"Interior Permanent Magnet (IPM) synchronous generators can achieve high-efficiency and wide voltage range with field strengthening and weakening. The purpose of this paper is to drive a high speed Surface Permanent Magnet (SPM) motor powered by the IPM generator with the field strengthening at a low rotational speed. The control systems of both the IPM generator and the high speed motor are proposed. The experimental results demonstrate the effectiveness of the control system.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129192435","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
Self-oscillation flyback converter with lossless snubber for contactless power supply application 带无损缓冲器的自振荡反激变换器，用于非接触电源
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617969
R. Lin, Zhizhen Huang
{"title":"Self-oscillation flyback converter with lossless snubber for contactless power supply application","authors":"R. Lin, Zhizhen Huang","doi":"10.1109/ECCE.2010.5617969","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617969","url":null,"abstract":"This paper presents the self-oscillating flyback converter with an integrated flyback-transformer whose auxiliary winding is utilized as the lossless snubber inductor and output-voltage sensing winding. In the conventional flyback converter, the turn-off switching loss caused by high switching frequency leads to low conversion efficiency. The proposed lossless snubber scheme not only reduces the voltage spikes at turn-off interval, but also recycles the energy stored in the leakage inductor to the input source for improving conversion efficiency. Considering further simplification, the lossless snubber inductor and the output-voltage sensing winding can be combined together as a single winding. A prototype circuit of the 15W self-oscillating flyback converter with lossless snubber circuit and output-voltage sensing circuit is built to verify the performances, such as the voltage stress on the switch, the conversion efficiency, and the load regulation.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125413969","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
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