A unified definition for damping torque coefficient of synchronous machines is proposed in this paper according to the principle of syntheticdamping coefficients deduced from the Lyapunov Theorem.
In the present paper, the damped system which takes into account both viscous damping and structural damping is defined as the synthetic damped system.
本文定义同时计及粘性阻尼和结构阻尼的系统为综合阻尼系统。
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The DSP circuit of synthetic impedance is adopted instead of piezoelectric shunting damping circuit.