Active Support Control Strategy of BDFM Based on Adaptive Virtual Synchronous Control
ID：121
Submission ID：126 View Protection：ATTENDEE
Updated Time：2025-11-03 11:46:49
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Oral Presentation
Start Time：2025-11-09 11:50 （Asia/Shanghai）
Duration：15min
Session：[S6] 6.Electric Machine Design and Control » [S6] 6.Electric Machine Design and Control
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Abstract
Based on the traditional synchronous condenser, the brushless doubly-fed machine (BDFM) can support the active power of the power grid, solve the problem of low inertia and weak voltage support faced by the new electricity system, which has attracted wide attention. With the emergence of virtual synchronous control (VSC), BDFM can provide reactive power support similar to synchronous condenser, and can release rotor kinetic energy in a wide slip range to provide active support. However, the inertia coefficient and damping coefficient of VSC are set according to experience and cannot be changed in time to cope with different operating conditions of the system. This paper analyzes the influence of inertia and damping coefficient on the dynamic response of the system by constructing the small signal model, and propose adaptive VSC. The control strategy reduces the overshoot and oscillation of the system and improves the robustness. Simulations verify the strategy's effectiveness.
Keywords
adaptive control,brushless doubly-fed machine,virtual synchronous control,small signal model
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