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Characterization of proportional-integral-resonant compensator for DC link voltage control
Zarei, S. F ; Sharif University of Technology
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- Type of Document: Article
- DOI: 10.1109/COMPEL.2018.8460151
- Abstract:
- Voltage unbalance and short circuits in distribution networks adversely affect the performance of grid-tied voltage source inverters (VSIs). Consequently, the dc-link voltage ripple may significantly increase leading to operation of VSI in an unsatisfactory manner. Conventionally in order to maintain the negative sequence current under unbalanced conditions, low-pass/trap filter in the current control loop are required which significantly reduce the controller bandwidth. In order to minimize the dc-link voltage ripple without impairing the controller bandwidth, this paper investigates the design and performance of Proportional-Integral-Resonant (PIR) controller in improving the performance of the VSI under unbalanced condition. The proposed design methodology is validated through simulations and experimental results. © 2018 IEEE
- Keywords:
- Grid-tied VSI ; Unbalanced voltage sag ; Bandwidth ; Electric inverters ; Power control ; Power electronics ; Two term control systems ; Voltage control ; DC link voltage control ; Dc link voltage ripple ; Grid-tied ; Grid-tied voltage-source inverters ; Negative-sequence currents ; Proportional integral ; Unbalanced AC grid ; Unbalanced voltage sags ; Controllers
- Source: 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018, 25 June 2018 through 28 June 2018 ; 2018 ; 9781538655412 (ISBN)
- URL: https://ieeexplore.ieee.org/document/8460151