A generator that uses a superconducting magnet for the rotor electromagnet. Development of superconducting magnets is being carried out for large-capacity steam-driven turbine generators. Superconductivity makes generators significantly smaller and lighter, and also improves characteristics such as voltage regulation. This is because the output P of a generator is expressed as P = KD 2 L ( K = k * Bg * AC ). In the above equation, D 2 L is the dimension that represents volume, so K is called the output coefficient. The content of K is expressed as AC (ampere-conductor) , which is the product of the magnetic flux density Bg in the air gap between the stator and rotor and the generating capacity of the armature coil, or the current that can be passed, A , and the number of turns C of the conductor. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
回転子電磁石に超電導マグネットを用いた発電機。大容量の蒸気駆動のタービン発電機に対して,この超電導化の開発が行われている。発電機は超電導化により著しく小型,軽量になり,また電圧変動率などの特性も改善される。なぜならば,発電機の出力PはP=KD2L(K=k・Bg・AC)のように表される。 上式で,D2Lは体積を表す次元なのでKは出力係数といわれている。このKの中身は上式のように固定子と回転子の間の空隙(くうげき)の磁束密度Bgと電機子コイルの発電能力ともいうべき,流し得る電流Aと導体の巻数Cの積AC(アンペア・コンダクター)で表される。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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