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Analysis and Design of Single-Phase Current-source Grid-Connected PV Inverter
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| Author(s) |
Gurhan ERTASGIN, Wen SOONG, Nesimi ERTUGRUL |
| Abstract |
This paper investigates the performance of a 150 W single-phase current-source grid-connected inverter for photovoltaic (PV) applications. The constant-current source is realized using a large DC link inductor and the inverter is implemented using a single boost switch, a H-bridge inverter and a CL output filter. Although the DC link inductor causes the inverter to be less efficient than an equivalent voltage-source inverter, it offers lower cost due to the zero-current switching and lower number of components. In addition, the output current is easily controlled using the boost switch and offers simple open-loop and feed-forward control. The paper compares the simulated and measured inverter performance with regards to output power, total harmonic distortion and power factor. Additionally the scaling of the concept to a higher power (1.2 kW) inverter was also investigated using simulations. |
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| Filename: | 0924-epe2013-full-15194889.pdf |
| Filesize: | 450.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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