| Title |
Development of a 100 hp HTS Synchronous Motor |
| Authors |
손명환(Sohn Myung-Hwan) ; 백승규(Baik Seung-Kyu) ; 이언용(Lee Eon-Young) ; 권영길(Kwon Young-Kil) ; 조영식(Jo Young-Sik) ; 김종무(Kim Jong-Moo) ; 문태선(Moon Tae-Sun) ; 김영춘(Kim Yeong-Chun) ; 권운식(Kwon Woon-Sik) ; 박희주(Park Heui-Joo) |
| Keywords |
High Temperature Superconducting(HTS) Motor ; Cooling System ; Open-Circuit Characteristics ; hort-Circuit Characteristics |
| Abstract |
Korea Electrotechnology Research Institute(KERI) has successfully developed a 100hp-1800rpm-class high temperature superconducting(HTS) motor with high efficiency under partnership with Doosan Heavy Industries & Construction Co. Ltd. This motor has a HTS field winding and an air-cooled stator. The advantages of HTS motor can be represented by a reduction of 50% in both losses and size compared to conventional motors of the same rating. The cooling system is based on the heat transfer mechanism of the thermosyphon by using GM cryocooler as cooling source. The cold head is in contact with the condenser of a Ne-filled thermosyphon. Independently, the rotor assembly was tested at the stationary state and combined with stator. The HTS field winding could be cooled into below 30K. Test of open-circuit characteristics(OCC) and short-circuit characteristics(SCC) and load test with resistive load bank were conducted in generator mode. Also, load tests in motor mode driven by inverter were finished at KERI. Maximum operating current of field winding at 30K was 120A. From OCC and SCC test results synchronous inductance and synchronous reactance were 2.4mH, 0.49pu, respectively. Efficiency of this HTS machine was 93.3% in full load(100hp) test. This paper will present design, construction. and experimental test results of the 100hp HTS machine. |