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Supply voltage sensorless reactive power control of DTC modulation based line converter with L- and LCL-filters
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| Author(s) |
R. Pöllänen; A. Tarkiainen; M. Niemelä; J. Pyrhönen |
| Abstract |
The reactive power control of a modern current controlled line converter without source voltage
sensors is described. Current vector control is implemented using synchronous coordinates PI
controllers and a high performance direct torque control (DTC) based modulation technique. Both Land
LCL-type line filters are considered. With L-filter two strategies for reactive power control are
proposed: firstly, an open loop control and, secondly, a feedback control based on estimated reactive
power. In the case of an LCL-filter, a combined open loop and feedback control is introduced. The
influence of the line filter parameter mismatch on the performance of the estimation based control
schemes is investigated. Experimental results are presented to proof the competent performance of the
proposed reactive power control methods. |
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| Filename: | EPE2003-PP0857 - Pollanen |
| Filesize: | 547.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-24 by Unknown |
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