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핫이슈 - 레시피는 오감 예술, 나만의 아이디어로 특허권에 도전하자
박상호,Park, Sang-Ho 한국식품산업협회 2015 좋은식품 Vol.247 No.-
특허권을 지적재산권이라고 한다. 부동산처럼 타인에게 양도할 수 있으며, 두 사람 이상이 공유할 수도 있고, 빌려줄 수도 있다. 쉽게 말해서 특허권을 가지고 있으면 돈이 되는 것이다. 그렇기 때문에 특허권에 대한 관심이 증폭되고 있다.
이중계자를 갖는 10 MW급 전초전도 동기 발전기의 교류손실 해석
박상호,이명희,이세연,양형석,김우석,이지광,최경달,Park, Sang Ho,Lee, Myeonghee,Lee, Seyeon,Yang, Hyung Suk,Kim, Woo-Seok,Lee, Ji-Kwang,Choi, Kyeongdal 한국전력공사 2020 KEPCO Journal on electric power and energy Vol.6 No.4
The superconducting synchronous generator is one of the breakthrough elements for direct-drive wind turbines because it is light and small. Normally the superconducting one has copper armature windings in the stator and superconducting field windings on the rotor. The high resistance of the armature can make large copper losses, comparing with the conventional generators with a gear box. One of the solutions for the large copper losses could be a fully superconducting generator. But the high magnetic fields from the superconducting field windings on the rotor also make high perpendicular magnetic fields on the superconducting tapes in the armature windings. We have proposed a fully superconducting synchronous generator with dual field windings. It could immensely decrease the circumferential component of the magnetic field from the field windings at the armature windings. In this paper, we conceptually designed 3 types of superconducting synchronous generators. The first one is the fully superconducting one with conventional structure, which has superconducting armature windings in the stator and superconducting field windings on the rotor. The second one is the one with dual superconducting field windings and superconducting armature windings between them. The last one is the same as the third one except the structure of the armature. If the concentrated armature windings are superconducting ones with cryostats, then they cannot be installed within the span of 2 poles. So, we adopted 3 phases windings within 4 poles system. It makes more AC losses but can be manufactured really.