Abstract
This paper proposes a direct power control (DPC) strategy for cascaded brushless doubly fed induction generator (CBDFIG), which eliminates the slip rings and brushes in conventional DFIG wind turbine systems and features quick dynamic response and excellent steady state performance. Prior methods for controlling CBDFIG are based on vector control (VC), which is complicated and requires much tuning work and machine parameters. Appropriate decoupling and fine PI tuning are mandatory to obtain good performance over the entire operating range. Furthermore, there are few papers regarding the grid synchronization issue of CBDFIG. This paper firstly analyzes the influence of each voltage vector on active/reactive powers and then proposes a unified switching table for both grid-connected operation and grid synchronization process. The effectiveness of the developed DPC method for CBDFIG is confirmed by the presented simulation results.
Original language | English |
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Title of host publication | 2011 International Conference on Electrical Machines and Systems, ICEMS 2011 |
DOIs | |
Publication status | Published - 16 Dec 2011 |
Externally published | Yes |
Event | 2011 International Conference on Electrical Machines and Systems, ICEMS 2011 - Beijing, China Duration: 20 Aug 2011 → 23 Aug 2011 |
Conference
Conference | 2011 International Conference on Electrical Machines and Systems, ICEMS 2011 |
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Country/Territory | China |
City | Beijing |
Period | 20/08/11 → 23/08/11 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering