Abstract
This chapter introduces modal analysis of small-signal angular stability of a power system affected by a grid-connected DFIG. First, a method of decomposed modal analysis is proposed. The method can separately examine the impact of load flow change and dynamic interactions brought about by the grid-connected DFIG. Second, the impact of dynamic interactions introduced by the grid-connected DFIG on power system small-signal angular stability is examined comprehensively. Two indices to estimate the impact are introduced.
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Appendices
Appendix 4.1: Data of Example 4.1
4.1.1 Example 16-Machine 68-Bus New York and New England Power System [3] (Tables 4.10, 4.11, 4.12)
4.1.2 Data of DFIG [4] (Tables 4.13, 4.14, 4.15)
Appendix 4.2: Data of Example 4.2
4.1.1 Data of New England Power System [13] (Tables 4.16, 4.17 and 4.18)
4.1.2 Data of DFIG [16] (Tables 4.19, 4.20 and 4.21)
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Du, W., Wang, H., Bu, S. (2018). Modal Analysis of Small-Signal Angular Stability of a Power System Affected by Grid-Connected DFIG. In: Small-Signal Stability Analysis of Power Systems Integrated with Variable Speed Wind Generators. Springer, Cham. https://doi.org/10.1007/978-3-319-94168-4_4
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DOI: https://doi.org/10.1007/978-3-319-94168-4_4
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