2018 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献_第2页

An enhanced PWM method for loss balancing of five level T-type inverter in PV systems 光伏系统中五电平t型逆变器损耗平衡的增强型PWM方法

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341373

M. Aly, E. Ahmed, M. Orabi, M. Shoyama

引用次数: 5

Common-ground transformerless inverter for solar photovoltaic module 太阳能光伏组件用共地无变压器逆变器

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341004

S. Hasan, Benjamin Shaffer, Hassan A. Hassan, M. Scott, Y. Siwakoti, G. Town

引用次数: 11

GaN based transformer-less microinverter with coupled inductor interleaved boost and half bridge voltage swing inverter 基于GaN的电感耦合交错升压和半桥式摆压无变压器微型逆变器

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341039

Jinia Roy, R. Ayyanar

引用次数: 5

A new six-switch five-level boost-active neutral point clamped (5L-Boost-ANPC) inverter 一种新的六开关五电平升压-有源中性点箝位(5l -升压- anpc)逆变器

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341356

Y. Siwakoti

{"title":"A new six-switch five-level boost-active neutral point clamped (5L-Boost-ANPC) inverter","authors":"Y. Siwakoti","doi":"10.1109/APEC.2018.8341356","DOIUrl":"https://doi.org/10.1109/APEC.2018.8341356","url":null,"abstract":"Multilevel converters have seen an increasing popularity in the last decades, due to the increased power ratings, improved power quality, low switching losses, and reduced Electromagnetic Interference (EMI). Among them, the most popular ones are the Neutral Point Clamped (NPC) and the Flying Capacitor (FC) inverter topologies. Different derivatives of the NPC and FC are prevalent in the literature for various applications. However, the main drawback of the NPC and FC topologies is the high dc-link voltage, which has to be more than twice of the grid peak voltage for grid integration. Therefore, a front-end boost dc-dc converter is normally required before the inverter, which decreases the overall efficiency of the system. Single-stage dc-ac power converters with boost capabilities offer an interesting alternative compared to the two-stage approach. Considering this aspect, a novel 5-Level three-phase boost type inverter is introduced in this paper for general-purpose applications (e.g. rolling mills, fans, pumps, marine appliances, mining, tractions, and most prominently grid-connected renewable energy, etc.) which reduces the dc-link voltage requirement to half of the conventional 5-Level NPC, ANPC and 5-Level FC family. Whilst reducing the dc-link voltage requirement, the number of active and passive components are also reduced. The principle of operation and theoretical analysis supported by key simulation and experimental waveforms of a 1.5 kW prototype are presented to prove the concept of the proposed 5L-Boost-ANPC inverter.","PeriodicalId":113756,"journal":{"name":"2018 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122770054","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

Duty compensated reduced harmonic control for a single-phase H-bridge PFC converter 单相h桥PFC变换器的占空补偿降谐波控制

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341291

U. Sankar, Ayan Mallik, A. Khaligh

引用次数: 6

Primary-side feedback control IC design for flyback converter with energy saving burst mode 节能型突发反激变换器的一次侧反馈控制集成电路设计

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341300

C. Huang, T. Liang, Kai-Hui Chen, Cheng-Yuan Li

{"title":"Primary-side feedback control IC design for flyback converter with energy saving burst mode","authors":"C. Huang, T. Liang, Kai-Hui Chen, Cheng-Yuan Li","doi":"10.1109/APEC.2018.8341300","DOIUrl":"https://doi.org/10.1109/APEC.2018.8341300","url":null,"abstract":"The advantages of the flyback converter with the primary-side regulation (PSR) are small size and high efficiency at light load. However, when the PSR flyback converter operates in burst mode, the controller is not able to sense the output information. Therefore, it is not easy to control the output voltage precisely. An integrated circuit design for AC-DC flyback converter using primary-side controller with burst mode energy saving is proposed in this paper. As the load decreases, the flyback converter operates from discontinuous conduction mode to frequency reduction mode. At extremely light load, the flyback converter operates in burst mode. With the proposed control, the burst-on time is detected by the voltage across the auxiliary winding, and the burst-off time can be estimated to control the output voltage ripple. In the proposed control circuit, a capacitor is charged by a constant current source during the burst-on time, and the capacitor voltage is transferred to a controlled current. Therefore, the required burst-off time can be obtained by using the controlled current to charge another capacitor until it reaches the reference voltage. Finally, this controller is fabricated with TSMC 0.25 μm CMOS high voltage mixed signal general purpose process. The flyback converter with the input voltage range of 90–130 Vrms, the output voltage of 15 V, and the output power of 30 W is implemented to verify the feasibility of the proposed controller.","PeriodicalId":113756,"journal":{"name":"2018 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"39 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132027152","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

A complete small signal modelling and adaptive stability analysis of nonlinear droop-controlled microgrids 非线性下垂控制微电网小信号建模及自适应稳定性分析

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341581

Hassan Abdelgabir, M. N. Shaheed, A. Elrayyah, Y. Sozer

引用次数: 4

A transformerless single-phase symmetrical Z-source HERIC inverter with reduced leakage currents for PV systems 一种用于光伏系统的无变压器单相对称z源HERIC逆变器

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341035

Kerui Li, Yanfeng Shen, Yongheng Yang, Zian Qin, F. Blaabjerg

引用次数: 13

A simple ZVT auxiliary circuit for full-bridge based bridgeless single-phase PFC with hybrid PWM modulation scheme 基于混合PWM调制方案的全桥无桥单相PFC的简单ZVT辅助电路

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341298

Ziwei Yu, Yinglai Xia, R. Ayyanar

引用次数: 2

Non-linear capacitor based variable capacitor for self-tuning resonant converter in wireless power transfer 基于非线性电容的无线电力传输自调谐谐振变换器可变电容

2018 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2018-04-18 DOI: 10.1109/APEC.2018.8341196

Hulong Zeng, F. Peng

{"title":"Non-linear capacitor based variable capacitor for self-tuning resonant converter in wireless power transfer","authors":"Hulong Zeng, F. Peng","doi":"10.1109/APEC.2018.8341196","DOIUrl":"https://doi.org/10.1109/APEC.2018.8341196","url":null,"abstract":"In wireless power transfer (WPT) system, the resonant frequency of primary side and secondary side should be matched to maximize the power transferred and efficiency. However, in mass production, the variation of each component in the resonant circuit results in poor matching. One solution is to utilize a variable capacitor for self-tuning to compensate the variation. To implement a variable capacitor on a linear capacitor in power converters, most of the solutions chop part of the rated current by an auxiliary circuit. Therefore, the power rating of the auxiliary circuit is proportional to the percentage of capacitance variation, which generates considerable loss. On the other hand, non-linear capacitor, ceramic capacitor as an example, can change capacitance by varying DC bias. The auxiliary circuit to hold the DC bias only needs to supply the leakage current of the nonlinear capacitor, which is negligible. In this paper, an almost lossless auxiliary circuit for continuously varying DC bias is proposed. It is suitable for high power applications such as electric vehicles wireless charger. Experimental results based on a 100-W scale-down series resonant converter (SRC) with 20-cm air gap between the primary and secondary side are presented to illustrate the mechanism of this method.","PeriodicalId":113756,"journal":{"name":"2018 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131579831","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: 11