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Dynamic Performance of Current Controllers for Grid-connected Voltage Source Converters under Unbalanced Voltage Conditions
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| Author(s) |
M. Bongiorno; J. Svensson; A. Sannino |
| Abstract |
The increasing use of Voltage Source Converters (VSCs) in grid-connected applications at distribution levels requires control methods that achieve high performance not only during normal operating conditions of the grid, but also under unbalance conditions. These can occur temporarily, due to faults, or permanently, due to uneven distribution of single-phase loads on the three phases of the distribution system. In this paper, three different current controllers for shunt-connected VSC are investigated and compared under unbalanced conditions. The dc-link voltage is constant and steps in the reference currents are applied in order to test the dynamic performance of the system. Simulation and experimental results are shown for all three controllers. |
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| Filename: | Unnamed file |
| Filesize: | 284.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-01-24 by System |
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