Abstract
This paper investigates the unbalanced voltage compensation strategy of the point of common coupling (PCC) for doubly fed induction generator (DFIG) based on self-synchronization control without phase-locked-loop (PLL). The direct power control (DPC) scheme is implemented in a synchronous reference frame with the fixed angular frequency to avoid potential instability issues caused by PLL under nonideal grid voltage. The unbalanced voltage compensation strategy is proposed based on resonant compensator of PCC voltage. In order to balance the operation performance of DFIG and the power quality of PCC voltage, this paper uses a hybrid virtual impedance (HVI) method to achieve flexible compensation and avoid overmodulation, which needs both the feedforward of the PCC voltage and the feedback of the output current to develop the voltage references. Finally, the results of simulation validate the availability of the proposed compensation strategy.
| Original language | English |
|---|---|
| Title of host publication | 2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 502-507 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781728143033 |
| DOIs | |
| State | Published - Jul 2020 |
| Externally published | Yes |
| Event | 2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020 - Weihai, China Duration: 13 Jul 2020 → 16 Jul 2020 |
Publication series
| Name | 2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020 |
|---|
Conference
| Conference | 2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020 |
|---|---|
| Country/Territory | China |
| City | Weihai |
| Period | 13/07/20 → 16/07/20 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- doubly fed induction generator (DFIG)
- resonant compensator
- self-synchronization
- unbalanced voltage compensation
- virtual impedance
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