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Voltage control for VSI using load current observer
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| Author(s) |
Henrique MAGNAGO |
| Abstract |
This paper proposes a voltage controller with disturbance observer for VSI. A discrete time dead-beatinner current loop is used to regulate and limit the inverter current. The outer voltage control loopincludes the closed loop dynamic of the current controller and, in order to reduce the THD of the outputvoltage under non-linear loads, a load current observer is included. The controller and observers havetheir dynamic behavior set through the DLQR. An interactive scan of the DLQR's Q and R matricesvalues is implemented to optimize the obtained gains. HIL results are given to support the theoreticalanalysis and to demonstrate the performance of the system. |
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| Filename: | 0437-epe2019-full-23234985.pdf |
| Filesize: | 2.794 MB |
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| Type |
Members Only |
| Date |
Last modified 2020-08-14 by System |
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