Operational experience with reactive power control methods optimized for 
tokamak power supplies

Sihler, C.; Huart, M.; Käsemann, C.-P.; Streibl, B.; ASDEX Upgrade Team

doi:10.1016/S0920-3796(03)00287-4

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Operational experience with reactive power control methods optimized for tokamak power supplies

Sihler, C., Huart, M., Käsemann, C.-P., Streibl, B., & ASDEX Upgrade Team (2003). Operational experience with reactive power control methods optimized for tokamak power supplies. Fusion Engineering and Design, 66-68, 1139-1142. doi:10.1016/S0920-3796(03)00287-4.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-23BA-A Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-23C0-9

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Urheber:
Sihler, C.¹, Autor
Huart, M.¹, Autor
Käsemann, C.-P.², Autor
Streibl, B.¹, Autor
ASDEX Upgrade Team, Autor

Affiliations:
1Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295
2Central Technical Service (ZTE), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856299

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Schlagwörter: 22nd Symposium on Fusion Technology (SOFT 2002), Helsinki, 2002-09-09 to 2002-09-13

Zusammenfassung: The power and energy of the ASDEX Upgrade (AUG) tokamak are provided by two separate 10.5 kV, 110–85 Hz networks based on the flywheel generators EZ3–EZ4 in addition to the generator EZ2 dedicated to the toroidal field coil. The 10.5 kV networks supply the thyristor converters allowing fast control of the DC currents in the AUG poloidal field coils. Two methods for improving the load power factor in the present experimental campaign of AUG have been investigated, namely the control of the phase-to-neutral voltage in thyristor converters fitted with neutral thyristors, such as the new 145 MVA modular thyristor converter system (Group 6), and reactive power control achieved by means of static VAr compensators (SVC). The paper shows that reliable ompensation up to 90 MVAr was regularly achieved and that electrical transients in SVC modules can be kept at an acceptable level. The paper will discuss the results from the reactive power reduction by SVC and neutral thyristor control and draw a comparative conclusion.