Xie Xiaorong

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In this paper, a new nonlinear multimass model has been developed for SSR (Subsynchronous Resonance) evaluation. This paper first gives a brief derivation of the shaft model, which is without damping, and then provides the new nonlinear modal damping model, which is the primary contribution of this paper. Following that, the integrated modal multimass model(More)
The authors introduced a novel method to identify the model parameters in the range of whole power system. The method records voltages and angles of main buses while the disturbance occurs. Then, the comparison will be made between simulations and recorded dynamics. The model parameters will be gained iteratively by using genetic algorithm. The method has(More)
In this paper, a near-optimal and robust SEDC (supplemental excitation damping control) has been developed for damping SSR (subsynchronous resonance) in Shangdu power plant in China . This paper first gives a brief analysis of the multi-mode SSR in Shangdu system, and then provides the configuration of SEDC to provide damping for all SSR modes. The primary(More)
On the subsynchronous resonance (SSR) problem in doubly fed induction generator (DFIG) based wind farm transmission system, it is unilateral to research under the condition that DFIG runs in maximum power point tracking (MPPT) mode. This paper studies SSR characteristics under whole operation area, including MPPT. SSR stable area is proposed by scanning(More)
Large-scale Doubly-fed induction generator-based wind power plants connected to series-compensated transmission system are facing the risk of sub-synchronous oscillations (SSOs). A regional grid recently suffered from a spate of SSO failures. This event seriously affected the safe and stable operation of the power grid. This particular case was analyzed in(More)
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