Isolation transformers for utility-interactive photovoltaic systems
Abstract
Isolation transformers are used in some photovoltaic systems to isolate the photovoltaic system common mode voltage from the utility distribution system. In early system experiments with grid connected photovoltaics, such transformers were the source of significant power losses. A project at the Lincoln Laboratory and at Allied Chemical Corporation developed an improved isolation transformer to minimize such power losses. Experimental results and an analytical model of conventional and improved transformers are presented, showing considerable reductions of losses associated with the improved transformer.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1982
- Bibcode:
- 1982STIN...8327140K
- Keywords:
-
- Impedance;
- Instrument Transformers;
- Inverted Converters (Dc To Ac);
- Photovoltaic Cells;
- Solar Arrays;
- Solar Energy Conversion;
- Electrical Resistivity;
- Energy Conversion Efficiency;
- Low Cost;
- Power Conditioning;
- Power Factor Controllers;
- Tables (Data);
- Electronics and Electrical Engineering