The power and energy for ASDEX Upgrade, Germany’s largest experiment for nuclear fusion research, is provided by three separate networks based on flywheel generators. Damage at couplings of the shafts of the flywheel generators EZ3 (144 MVA / 500 MWs) and EZ4 (220 MVA / 600 MWs) were discovered during a routine check. They can only be explained by subsynchronous resonances (SSR) which are excit...

W DU and H F WANG Southeast University, Nanjing, China Abstract – Damping torque analysis is a technique developed based on classical control theory for the excitation implemented damping control in power generation, which has been widely used in engineering practice since it was proposed. This paper proposes the damping torque analysis for DC bus implemented damping control in power transmissi...

This paper studies the effect of stator winding configuration on the performance of five-phase induction machines under healthy as well as faulty conditions. The study compares two connections, namely, star and pentagon connections. The comparison is conducted using both simulation and experimental results. The steady state model based on symmetrical components theory is introduced for both con...

In this paper, investigation of subsynchronous resonance (SSR) characteristics of a hybrid series compensated system and the design of voltage controller for three level 24-pulse Voltage Source Converter based Static Synchronous Series Compensator (SSSC) is presented. Hybrid compensation consists of series fixed capacitor and SSSC which is a active series FACTS controller. The design of voltage...

This paper presents the comparisons between two types of switched reluctance machines (SRMs) and SRM converters. An with a segmental rotor is compared conventional (CSRM), an converter containing passive boost circuit asymmetric half-bridge (AHB) converter. The has segmented structure. four segments are made steel laminations. Two misaligned other by 15 degrees. torque ripple this structure dec...