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2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)最新文献

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Rapid synchronization technique for enhanced low voltage ride-through operation of a distributed energy resource 增强分布式能源低压穿越运行的快速同步技术
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167902
Rohit Parashar, V. Agarwal
{"title":"Rapid synchronization technique for enhanced low voltage ride-through operation of a distributed energy resource","authors":"Rohit Parashar, V. Agarwal","doi":"10.1109/ICPE.2015.7167902","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167902","url":null,"abstract":"A rapid grid synchronization technique is proposed for enhanced low voltage ride-through (LVRT) operation of voltage source inverter based distributed energy resource (DER). The proposed synchronization method aims at enhancing the LVRT capability by providing fast information of the fundamental positive and negative sequence components of the grid voltage vector. This is achieved by a novel pre-filter, based on complex frequency integrators, which is capable of faster fundamental voltage sequence separation. This information is crucial for optimal and accurate current reference generation during LVRT. Improved dynamics of the prefilter also allow higher phase lock loop (PLL) bandwidth compared to existing pre-filter based synchronization techniques. The higher bandwidth of the PLL based on proposed pre-filter allows for fast fundamental positive sequence grid voltage vector angle tracking which is crucial for a current controller in the synchronous reference frame. The method is implemented on TMS320F28335 controller, and key results are presented.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128664859","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
Modified SVM to meet CMV and DC current ripple reduction 改进支持向量机以满足CMV和直流电流纹波抑制
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167856
Abbas Dehghani, K. El Khamlichi Drissi, C. Pasquier
{"title":"Modified SVM to meet CMV and DC current ripple reduction","authors":"Abbas Dehghani, K. El Khamlichi Drissi, C. Pasquier","doi":"10.1109/ICPE.2015.7167856","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167856","url":null,"abstract":"This paper introduces the Modified conventional SVM (MSVM) in order to improve CMV, switching losses, and THD feature of two-level Voltage Source Inverter (VSI). The proposed method divides nulltime, resulted from SVM, to these of two nearby active vectors, forming sector, to calculate new duty cycles. This modification also can be envisaged as transferring matrix, in which its elements are function of percentage of allocating null-time to active ones. Avoiding null-vectors not only result in reduction of CMV peak value but also lead to mitigating THD. Moreover, MSVM mitigates the number of commutations which are proportional to switching losses. In this work, theoretical approach to calculate switching losses, respecting load power factor is formulized. Mathematical approaches, simulation results, carried out through MATLAB/Simulink environment, and finally experimental results verify its validity in above-mentioned achievement. Proposed strategy is simply applied without adding any extra hardware and complex calculations.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129334066","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
Carrier based PWM for three-phase three-switch buck-type rectifier in EV rapid charging system 电动汽车快速充电系统中基于载波的三相三开关buck型整流器PWM
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167886
Beomseok Chae, Taewon Kang, Tahyun Kang, Y. Suh
{"title":"Carrier based PWM for three-phase three-switch buck-type rectifier in EV rapid charging system","authors":"Beomseok Chae, Taewon Kang, Tahyun Kang, Y. Suh","doi":"10.1109/ICPE.2015.7167886","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167886","url":null,"abstract":"This paper investigates an economic and highly efficient power converter topology and its modulation scheme for 60kW rapid EV charger system. The target system consists of three-phase three-switch buck-type rectifier topology. A new Carrier Based PWM scheme along with its simple implementation using logic gates is introduced in this paper. This PWM scheme replaces the diode rectifier equivalent switching state with an active switching state producing the effectively same current flowing path. As a result, the distortion of input current during the polarity reversal of capacitor line voltage can be mitigated. The proposed modulation technique is confirmed through simulation verification. The proposed modulation technique and its implementation scheme can expand the operation range of the three-phase three-switch buck-type rectifier having ac input and capacitor ripple current of high quality.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127304110","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
Semi-full-bridge submodule for modular multilevel converters 用于模块化多电平转换器的半全桥子模块
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167913
K. Ilves, L. Bessegato, L. Harnefors, S. Norrga, H. Nee
{"title":"Semi-full-bridge submodule for modular multilevel converters","authors":"K. Ilves, L. Bessegato, L. Harnefors, S. Norrga, H. Nee","doi":"10.1109/ICPE.2015.7167913","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167913","url":null,"abstract":"The energy variations in each arm of the modular multilevel converter comprises two components. The first component relates to the difference between the instantaneous input and output power of each phase-leg, and the second component relates to the energy which is moved back and forth between the two arms of the phase-leg. The latter component can be reduced or even eliminated if the peak-to-peak amplitude of the alternating voltage is greater than the pole-to-pole voltage of the dc link. This will, however, require submodules which can insert negative voltages. Therefore, a semi-full-bridge submodule which uses less semiconductors than the conventional full-bridge is proposed. Simulation results shows that by using the negative voltage-levels the capacitor voltage ripple can be reduced by up to 59%. Experimental results also shows that a 7-level voltage waveform can be generated using only one semi-full-bridge submodule with two capacitors per arm.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127192806","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: 38
Optimal utilization of low voltage GaN HEMT in high frequency boost converter 低压GaN HEMT在高频升压变换器中的最佳利用
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168030
Wenbo Wang, F. Pansier, J. Popovic, J. Ferreira
{"title":"Optimal utilization of low voltage GaN HEMT in high frequency boost converter","authors":"Wenbo Wang, F. Pansier, J. Popovic, J. Ferreira","doi":"10.1109/ICPE.2015.7168030","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7168030","url":null,"abstract":"In this paper, investigations on optimal topology and operation mode for low voltage GaN HEMT are performed. Analytical loss model of GaN HEMT, in which influences of circuit and package parasitics are accounted for, is developed as a tool to analyze losses in GaN HEMT in different switching conditions. Analysis results shows that when applied in both Vout <; 2Vin and Vout > 2Vin situations in Boundary Conduction Mode with Valley Switching(BCM-VS) in a boost converter, where GaN HEMT is switched on when voltage across it is lowered, switching loss can be greatly reduced. Switching loss reduction results not only from the exemption of discharging the large output capacitance of GaN HEMT at high voltage, but also from the fact that parasitic inductance has much less effects on switching loss in GaN HEMT in BCM-VS than in Continuous Conduction Mode (CCM). Limitations and design tradeoffs when GaN HEMT is applied in BCM-VS are also revealed. Forward voltage of GaN HEMT in reverse conduction is high and its conduction should be prevented when Vout > 2Vin to achieve conduction loss reduction. This further loss reduction can be realized by switching on transistor before valley point. Besides, in BCM-VS, overvoltage on GaN HEMT is larger and oscillatory energy dissipation in circuit is higher than in CCM due to higher turn off current. Paralleling external capacitor to the transistor helps to ease voltage stress; however turn on loss will be increased. This loss increase is more severe in the case of Vout <; 2Vin than Vout > 2Vin. Trade-offs on the selection of proper external capacitor value exists between increased switching loss and reduced voltage stress. Experimental setup is built to verify and demonstrate the analysis.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129075111","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
Two-phase interleaved bidirectional converter input-parallel output-series connection 两相交错双向变换器输入-并联-输出-串联连接
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167801
Yuji Yamamoto, Taro Takiguchi, Takaharu Sato, H. Koizumi
{"title":"Two-phase interleaved bidirectional converter input-parallel output-series connection","authors":"Yuji Yamamoto, Taro Takiguchi, Takaharu Sato, H. Koizumi","doi":"10.1109/ICPE.2015.7167801","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167801","url":null,"abstract":"The interleaved bidirectional converter (IBC) has lower input current ripple and higher power conversion efficiency than the bidirectional chopper because of the current sharing operation. However, the step up/down ratio of the IBC is the same as that of the bidirectional chopper. As a converter with high step up ratio, the two-phase interleaved DC-DC converter with parallel-input series-output connection (ICPS) is proposed. The ICPS realizes twice the step up ratio of the interleaved boost converter. Also, the ICPS has lower input ripple than the interleaved boost converter at the same step up ratio. This paper proposes bidirectional operation of the ICPS, which realizes the high step up/down ratio and the reduction of current ripple on the low voltage side. The proposed bidirectional operational principles and the steady-state analysis have been verified by simulation and circuit experiment.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129087402","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
Suppression of mechanical resonance using torque disturbance observer for two-inertia system with backlash 利用转矩扰动观测器抑制带间隙双惯量系统的机械共振
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168032
Ming Yang, Weilong Zheng, Kaixuan Yang, Dianguo Xu
{"title":"Suppression of mechanical resonance using torque disturbance observer for two-inertia system with backlash","authors":"Ming Yang, Weilong Zheng, Kaixuan Yang, Dianguo Xu","doi":"10.1109/ICPE.2015.7168032","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7168032","url":null,"abstract":"In servo system, elastic component in transmission can produce mechanical resonance. The existence of backlash will aggravate the damage of resonance. According to dead-zone model, two-mass elastic system with backlash is established. The conclusion that the existence of backlash decreases the elastic coefficient of shaft equivalently and its quantitative relation are researched. This paper proposes a torque disturbance observer to realize the suppression of mechanical resonance with limiting control for shaft torque amplitude. The observer can decrease ratio of inertia equivalently in the case of no identification of backlash value. It has a compensation result that system is changed to a rigid system with single moment of inertia. In addition, this compensation algorithm is independent with parameters and configuration of speed controller. Simulations and experiments demonstrate the effectiveness of this torque disturbance observer.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132965578","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: 13
Probabilistic calculation of total transfer capability (TTC) for power systems with wind farms using evolutionary algorithms 基于进化算法的风电场电力系统总传输能力(TTC)概率计算
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168073
M. R. Aghaebrahimi, R. K. Golkhandan, S. Ahmadnia
{"title":"Probabilistic calculation of total transfer capability (TTC) for power systems with wind farms using evolutionary algorithms","authors":"M. R. Aghaebrahimi, R. K. Golkhandan, S. Ahmadnia","doi":"10.1109/ICPE.2015.7168073","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7168073","url":null,"abstract":"Total transfer capability (TTC) represents the maximum power transfer between areas of a power system, while considering its constraints. In modern power systems, it is important to determine the TTC between different areas as it has become a very serious concern for grid designers. This index is used in the operation, design and electricity marketing stages of power systems. In recent years, there is much attention towards the use of renewable energy units in power systems, which increases the necessity of applying probabilistic methods. In this paper, the probabilistic calculations of power transfer capability in the presence of wind farms are performed, applying evolutionary algorithms. In addition, K-means clustering algorithm is applied in clustering the data related to the wind farms' output power. Then, the simulation results obtained from applying evolutionary algorithms are compared with each other. IEEE 30-bus system is used as the test network.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130913409","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
Q-learning algorithm based multi-agent coordinated control method for microgrids 基于q学习算法的微电网多智能体协调控制方法
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167977
Yuanyuan Xi, Liuchen Chang, M. Mao, Peng Jin, N. Hatziargyriou, Haibo Xu
{"title":"Q-learning algorithm based multi-agent coordinated control method for microgrids","authors":"Yuanyuan Xi, Liuchen Chang, M. Mao, Peng Jin, N. Hatziargyriou, Haibo Xu","doi":"10.1109/ICPE.2015.7167977","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167977","url":null,"abstract":"This paper proposes a Q-learning algorithm (Q-LA) based multi-agent coordinated control method for microgrids. By the method, Q-LA is adopted to calculate the power to be regulated, which is called the microgrid regulation error (MRE), in secondary control for real-time operation. And the generation schedule of distributed generators (DGs) as well as batteries is modified in real time with the MRE by the fuzzy theory and particle swarm optimization method, taking the economy and environmental benefits into consideration together. The simulation platform of Q-LA based multi-agent hybrid energy management system for microgrid (HEMS-MG) is established in C++ Builder. The simulation results verify the effectiveness and feasibility of the proposed method.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126816241","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: 8
Neutral point voltage-balanced control method based on discontinuous pulse width modulation for a NPC 3-level inverter 基于间断脉宽调制的NPC三电平逆变器中性点电压平衡控制方法
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168171
Shao-Liang An, Lu Lai, Xiangdong Sun, Y. Zhong, Biying Ren, Qi Zhang
{"title":"Neutral point voltage-balanced control method based on discontinuous pulse width modulation for a NPC 3-level inverter","authors":"Shao-Liang An, Lu Lai, Xiangdong Sun, Y. Zhong, Biying Ren, Qi Zhang","doi":"10.1109/ICPE.2015.7168171","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7168171","url":null,"abstract":"A neutral point voltage-balancing control algorithm is proposed for a neutral-point-clamped (NPC) three-level photovoltaic (PV) grid-connected inverter. The mathematical model of the neutral point current was deduced. The influence on the neutral point voltage for discontinuous pulse width modulation(DPWM) methods was analyzed. Comparison of the error between feedback neutral point voltages and the hysteresis width was used to choose a DPWM method to control the neutral point voltage. Simulation and experimental results verify the correctness and validity of the proposed neutral point voltage-balancing control algorithm.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121433870","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
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