1996 Fiscal Year Final Research Report Summary
Application of Superconducting Magnet to Electric Power Systems
| Project/Area Number |
06452199
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
電力工学・電気機器工学
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| Research Institution | The University of Tokyo (1996)
Kyoto University (1994-1995) |
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Principal Investigator |
NITTA Tanzo The Univ. of Tokyo Dept. of Electrical Eng., Professor, 大学院・工学系研究科, 教授 (40026266)
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| Co-Investigator(Kenkyū-buntansha) |
SHIRAI Yasuyuki Kyoto Univ. Dept of Energy Science and Technology, Associate Prof., 大学院・エネルギー科学研究科, 助教授 (60179033)
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| Project Period (FY) |
1994 – 1996
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| Keywords | Superconducting Magnet / Superconducting Energy Storage / Superconducting Fault Current Limiter / Electric Power System / Synchronizing Power / Damping Forcce |
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| Research Abstract |
Two items, that is, Superconducting Magnetic Energy Storage (SMES) and Superconducting Fault Current Limiter, were studied.
1) New application of SMES
A news application of SMES for on-line diagnosis of a power system was proposed and studied. A SMES can give continuous power disturbances to power system without changing the operating conditions of the system. By analyzing responses of the system, synchronizing power and damping force can be obtained. To confirm the above ides, we carried out two kinds of experiments by use of 1) a SMES of a small superconducting magnet and micro power system and 2) a model of SMES and an advanced power system analizer. The experimental results show that 1) synchronizing force can be obtained, 2) damping force can be obtained for simple power systems, and how to get damping force for more complicate systems is a open problem.
2) Studies on SCFCL The calculation of all fault condition shows that the difference between operating current and non-operating current is very samll. Therefore the operating current of SCFCL must be set with small error. However, it is very difficult to get such SCFCL.Then operating current-adjustable SCFCL is requested. Such an SCFCL was designed, manufactured and tested. The SCFCL is composed of double solenoids, one of which is connected to transmission line and the other of wichi is short-circuited. The operating current is adjustable by changing the magnetic couple of double solenoid. The experimental results show that the SCFCL has a good property.
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