Cost-Effective Hundred-Year Life for Single-Phase Inverters and Rectifiers in Solar and LED Lighting Applications Based on Minimum Capacitance Requirements and a Ripple Power Port

被引:148
作者
Krein, Philip T. [1 ]
Balog, Robert S. [2 ]
机构
[1] Univ Illinois, Dept Elect & Comp Engn, Grainger Ctr Elect Machinery & Electromech, 1406 W Green St, Urbana, IL 61801 USA
[2] SmartSpark Energy Syst Inc, Champaign, IL 61820 USA
来源
APEC: 2009 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1- 4 | 2009年
关键词
D O I
10.1109/APEC.2009.4802723
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Energy storage requirements for converters with a dc port and a single-phase grid-connected port are evaluated, based on the unavoidable double-frequency power requirement. The minimum energy storage requirement is linked to a minimum capacitance requirement for converters that use capacitance energy storage. It is shown how to employ a ripple power port to manage energy storage and decouple capacitor ripple from power ripple. A ripple power port allows a designer to make a choice of capacitor voltage independent of system voltages. This in turn allows film capacitors of modest size to be used for energy storage in these applications. A combination of ac link converter and ripple power port leads to a dramatic increase in reliability: it is shown that converters with nominal ratings up to 200 W can be designed with expected mean-time-between-failure ratings on the order of 1.4 million hours - sufficient for hundred-year operation in long-life applications such as photovoltaic converters and LED lamps. This large increase in life is achieved with minimal extra cost.
引用
收藏
页码:620 / +
页数:2
相关论文
共 15 条
[11]   Enhanced Current Pulsation Smoothing Parallel Active Filter for Single Stage Grid-connected AC-PV Modules [J].
Kyritsis, A. C. ;
Papanikolaou, N. P. ;
Tatakis, E. C. .
2008 13TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-5, 2008, :1287-+
[12]  
KYRITSIS AC, 2007, P EUR C POW EL APPL
[13]   Long-lifetime power inverter for photovoltaic AC modules [J].
Rodriguez, Cuauhtemoc ;
Amaratunga, Gehan A. J. .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2008, 55 (07) :2593-2601
[14]  
Veitch J. A., 1995, Lighting Research and Technology, V27, P243
[15]  
COLOR KINETICS LED L