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- W4386474967 abstract "Salient-pole synchronous hydro generators are usually equipped with a damper winding for compensating torque pulsation and unbalanced load. This consists of multiple short-circuited copper bars located in the pole shoe. For hydro generators, the damper winding connection from pole to pole can be realized in different ways, which are a) a conventional copper ring or b) an indirect connection where the path of the current goes through the pole end plate and rotor rim. The influence of the pole-to-pole connection type on the subtransient reactances and damper currents is investigated in this paper, since there is little information on this subject in the literature. A numerical simulation model is proposed and the calculated subtransient reactances are compared to measurements performed on a 366 kVA prototype hydro generator, in which the pole-to-pole connection type can be changed. Additionally, the steady-state damper current from pole to pole at no-load condition is also calculated and compared to measurements obtained using a telemetry system on the same machine. The innovative contribution of this paper, which explains how to account for the effect of the damper winding pole-to-pole connection type, is especially relevant for simulations performed during the design phase of hydro generators." @default.
- W4386474967 created "2023-09-07" @default.
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- W4386474967 date "2023-05-15" @default.
- W4386474967 modified "2023-09-27" @default.
- W4386474967 title "Effect of the damper winding pole-to-pole connection on the subtransient reactance and steady-state damper current in hydro generators" @default.
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- W4386474967 doi "https://doi.org/10.1109/iemdc55163.2023.10239013" @default.
- W4386474967 hasPublicationYear "2023" @default.
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