Speaker
Jianfei Peng
(Tokamak Power Supply Division)
Description
A new motor generator (MG) system is building mainly for the poloidal field power supply system of the HL-2M Tokamak. This MG system will be capable of providing a peak capacity of 300 MVA and delivering up to 1350 MJ per pulse at 15 min intervals. The system consists of a 300 MVA MG and its auxiliary systems. The MG adopts the semi umbrella vertical shaft type and consists of an 8500kW induction motor and a 6-phase synchronous generator. The basic specifications for the generator are peak output of 300 MVA at 0.65 power factor, rated current of 28,868 A, rated frequency of 99.6 ~ 67 Hz, and rated work speed of 498 ~ 335 rpm. The optimized electromagnetic parameters of the MG is given out by studying the MG and the desired requirements of its load. The performance analysis of the MG by FEA shows that the fatigue life, the stress and the temperature rise can meet the special requirements of the MG operation. All of the MG components had been machined and the installation was started in the second half of 2014. The rated speed of the MG is high, the speed decreases rapidly per pulse and the rated current of the generator with double Y stator windings is very large, so high quality control is necessary, including the rotor eccentricity of ≤0.15mm and the whole shaft verticality less than 0.01mm/m are strictly kept. Many checking tests were carried out during the installation. At present, the static debugging of the installed MG is performing for its first start-up test.
Co-authors
Baogang Jiang
(Harbin Electric Machinery Company Limited, Harbin, Heilongjiang, China)
Haibing Wang
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Huajun Li
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Jianfei Peng
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Weicheng Mao
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Weimin Xuan
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Xuru Duan
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Yingqiao Wang
(Tokamak Power Supply Division, Center for Fusion Science, Southwestern Institute of Physics, Chengdu, Sichuan, China)
Yuguo Wei
(Harbin Electric Machinery Company Limited, Harbin, Heilongjiang, China)
