2018 IEEE 4th Southern Power Electronics Conference (SPEC)最新文献_第7页

An Optimized Power-Split Method Based on Fuzzy Logic Control for Fuel Cell-Battery FCHEV Powertrain 基于模糊逻辑控制的燃料电池-电池混合动力汽车动力系统优化功率分配方法

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635961

Yao Zhang, Xin Zhang

引用次数: 2

An Isolated Bidirectional Forward Converter with Integrated Output Inductor-Transformer Structure 具有集成输出电感-变压器结构的隔离型双向正激变换器

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635880

N. M. Mukhtar, D. Lu

引用次数: 1

Inertia Emulation by Flywheel Energy Storage System for Improved Frequency Regulation 改进频率调节的飞轮储能系统惯性仿真

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635947

Jiale Yu, Jingyang Fang, Yi Tang

{"title":"Inertia Emulation by Flywheel Energy Storage System for Improved Frequency Regulation","authors":"Jiale Yu, Jingyang Fang, Yi Tang","doi":"10.1109/SPEC.2018.8635947","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635947","url":null,"abstract":"To alleviate air pollution and energy shortage issues, an increasing amount of renewable energy sources (RESs), such as wind power and solar photovoltaics (PVs), has been integrated into modern power systems. However, the large penetration level of renewable energies leads to the reduction of inertia as RESs are normally connected to the power grid through power electronics converters, which do not inherently provide the inertia as synchronous generators do. To solve the lack of inertia issue, this paper proposes the method of using flywheel energy storage systems (FESSs) to provide the virtual inertia and frequency support. As compared with batteries, flywheels have a much longer lifetime and higher power density. By regulating the speed of the flywheel in proportion to the grid frequency, the flywheel serves as an energy buffer that absorbs and releases its kinetic energy to provide inertia support. Furthermore, the design methods of the virtual inertia emulated by FESSs are described in detail. Finally, the feasibility of the proposed method is verified by simulations, and the simulation results validate the improvement of frequency regulation in terms of frequency nadir and rate of change of frequency (RoCoF).","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128329227","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: 17

Hybrid MPPT Algorithms for Photovoltaic Systems 光伏系统的混合MPPT算法

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636054

Leandro T. Omine, M. D. de Brito, J. Pinto, R. García

引用次数: 2

Ground Fault Analysis and Grounding Design Considerations in DC Microgrids 直流微电网接地故障分析及接地设计考虑

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636090

D. Jayamaha, N. Lidula, A. Rajapakse

引用次数: 7

A Min-communication Control for Grid-connected Cascaded PV Inverters 并网级联光伏逆变器的最小通信控制

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635926

Hongyi Liu, Hua Han, Yao Liu, M. Su, Xiaochao Hou, Xin Zhang

{"title":"A Min-communication Control for Grid-connected Cascaded PV Inverters","authors":"Hongyi Liu, Hua Han, Yao Liu, M. Su, Xiaochao Hou, Xin Zhang","doi":"10.1109/SPEC.2018.8635926","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635926","url":null,"abstract":"A minimize communication control method is proposed for photovoltaic (PV) grid-connected systems with cascaded H-bridge inverters. In the system used in this paper, PV panel in each unit is directly connected to the input port of the local H-bridge, then the output ports of these H-bridge inverters are cascaded with each other, each PV unit works at its maximum power point (MPP) to guarantee system’s maximum power generation efficiency. With communication, the inverter that connect to the point of common coupling (PCC) is controlled as a current source to keep synchronous operation with the utility grid by regulating its output current in phase with the grid voltage. The other cascaded inverters are controlled as voltage resources and keeping self-synchronization with unity power factor (PF) by the proposed control method without any communication. Finally, the common link current drives all cascaded inverters keep self-synchronization with the grid and provide maximum power with high quality to the grid. Compare with other control methods, the proposed control method only requires one communication link, the communication cost is effectively reduced, the reliability and power quality of the system are greatly improved. Simulation test verifies the correctness and validity of the proposed control strategy.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121650783","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 Novel Modified Digital PWM Control Technique to Reduce Speed Ripples in BLDC Motors 一种新型的改进数字PWM控制技术以减小无刷直流电机的速度波动

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635993

Pratikanta Mishra, A. Banerjee, H. Nannam, Mousam Ghosh

{"title":"A Novel Modified Digital PWM Control Technique to Reduce Speed Ripples in BLDC Motors","authors":"Pratikanta Mishra, A. Banerjee, H. Nannam, Mousam Ghosh","doi":"10.1109/SPEC.2018.8635993","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635993","url":null,"abstract":"With all the recent advancement in the domain of permanent magnet brushless dc (BLDC) motor control, many of the advanced and low cost control schemes are proposed. Despite of having multiple constructions based inherent advantages like reduced maintenance cost, high torque to weight ratio and others, BLDC motors still find sparse commercial applications. Conventionally used induction and dc machines have low initial cost and also are rugged. If maintenance cost, efficiency and volume are solely considered BLDC motors is undoubtedly the most preferable option. However, the extra cost involved with the compulsory power electronic converter to drive the motor makes the industries reluctant towards BLDC motor applications. Digital pulse width modulation (DPWM) technique was introduced to eliminate the usage of costly processors involved for the switching control of the converter. Digital PWM control is a simple approach and also can be implemented in reduced cost application specific integrated circuits (ASIC). The main disadvantage of digital PWM is the speed and torque ripples generated due to fixed duty cycles of the converter. This paper introduces a new modified digital PWM technique to eliminate the speed ripples in BLDC motor. The controller is designed in simulation environment and the same is also validated.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121769183","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

Improved quadratic boost converter using cross coupled-inductor 采用交叉耦合电感的改进型二次升压变换器

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635857

Yiyang Li, John Long Soon, S. Sathiakumar

引用次数: 4

Research on Influence of Time Delay on Critical Modes for Interconnected Grid 时滞对互联电网临界模式影响的研究

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635900

Y. Nie, Chiyao Feng, Chunlei Zhang, Qingfeng Zhang

引用次数: 0

Power Flow Control of Capacitive Power Transfer by Soft Switching of Extra Capacitors in Class E Converter E类变换器附加电容软开关容性功率传输的潮流控制

2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635634

Liang Huang, A. Hu

引用次数: 3