Abstract
Two basic control goals for wind energy conversion system (WECS) can be summarized as increasing its annual energy yield and extending its service life. The former can be achieved by using an optimum power control strategy, which is quite a mutual technology right now. Meanwhile, the way to achieve the latter cannot be evidenced so far. It has been found out that the service life of WECS is closely related to the amount of dynamic loads it bears. In the research of this paper, three major dynamic loads, namely, aerodynamic load, transient load, and transit load, are studied. First, definitions and the generating mechanisms of different dynamic loads are given. Then, corresponding attenuating strategies are proposed, and their operational principles are elaborated. Finally, the proposed control strategies are combined into one lowdynamic load power control strategy, which is an improved version of the commonly used power control strategy for WECS in the industry. The load-attenuating effects are validated by applying comparative experimental tests performed by a 10-kW variable-speed fixed-pitch WECS test rig setup in the laboratory.
| Original language | English |
|---|---|
| Pages (from-to) | 178-188 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 63 |
| Issue number | 1 |
| Early online date | 3 Aug 2015 |
| DOIs | |
| Publication status | Published - Jan 2016 |
| Externally published | Yes |
Funding
This work was supported in part by Scientific Research Funding for One-Hundred Talent Program of Chongqing University under Grant 0215001104444, in part by the Major State Basic Research Development Program 973 under Grant 2012CB215202 and Grant 2014CB249200, in part by the National Natural Science Foundation of China under Grant 61134001.
Keywords
- Drivetrain
- Dynamic loads
- Power controller
- Wind energy conversion system (WECS)