ãããŸãã20幎ã»ã©åã2000幎代ã«å ¥ã£ãã°ããã®ãããŸã§ãçè ïŒæ¢ åæ·³ïŒã¯çè·åž«åãã®æåèªã®ç·šéè ãåããŠããããšãããããããšãã京æµæ¥è¡é»éïŒäº¬æ¥ïŒæ²¿ç·ã®ç é¢ã®çè·åž«é·ãšè©±ããããšãã京æ¥ã®é»è»ã®è©±é¡ãšãªã£ããå°æ¹ã®çè·åŠçãå°±è·æŽ»åã§ãã®ç é¢ã«åããéã決ãŸã£ãŠé ããŠæ¥ããšããã®ã ãçè·åŠçã¯é»è©±ã§é å»ã®é£çµ¡ãããéã«æ±ºãŸã£ãŠããèšããšããã
ãåå·é§ ãã京æ¥ã®å¿«ç¹ã«ä¹ã£ãŠââé§ ã§äžè»ãšã®ããšã§ãããç¹æ¥æéãæããªããšä¹ããªãé»è»ã°ããæ¥ãŠãéã«åããªããªããŸããã
ã京æ¥ã®å¿«ç¹ããšã¯äº¬æµæ¥è¡é»éæ¬ç·ã®æ³å²³å¯ºé§ ãšåä¹ éæµç·äžåŽå£é§ ãšã®éãçµã¶å瀟ã®çæ¿åè»ã§ããã2000幎ããã®å¿«ç¹ã«ã¯1998幎ã«ç»å Žããã°ããã®2100圢ãäž»ã«çšããããŠããããã®é»è»ã¯ãªãã»ã©JRãä»ã®å€§æç§éã§ã¯ç¹æ¥åžãæºããŠããªããã°ä¹è»ã§ãããããªããããªå€èŠ³ãšè»å ã®èšåãšããã€ã
ããããã京æµæ¥è¡é»éã¯å¹³è¡ããJRç·ãšã®ç«¶äºäžã2100圢ã«éè³ã ãã§ä¹è»ã§ããããã«èšå®ããŠããŠãããŸã§ã座åžæå®ã®ãŠã£ã³ã°ãµãŒãã¹ã®åè»ã«äœ¿çšããããšã以å€ã¯æéã¯å¿ èŠãªããå°æ¹ããäžäº¬ããã°ããã®çè·åŠçã«ã¯å瀟ã®ãµãŒãã¹ãè£ç®ã«åºãŠãé§ ã§è¿·ã£ãŠããŸã£ãã®ã§ããã
ãç®ãçã£èµ€ã«ããªããç é¢ã«å°çããçè·åŠçã«å¯Ÿããçè·åž«é·ã¯ããèšã£ãŠæ°ãèœã¡çããããšããã
ãå¿«ç¹ã®é»è»ã¯æã£ãŠããã¿ããã ã£ãã§ãããã
ãããèšããšçè·åŠçã¯ç¬é¡ã«ãªã£ãŠããã¯ããé§ ãçºè»ãããã³ã«ããã¬ããã¡ãœã©ã·ãããšæã£ãŠããŸããããšçãããšããââã
ãã¬ããã¡ã€ã³ããŒã¿ã®èªç
ããã¬ããã¡ãœã©ã·ããšæãé»è»ãã®æãšã¯äœã ã£ãã®ã ããããè»å æŸéã§æµãããŠããé³æ¥œã§ã¯ãªããé»è»ã®åºäžããã£ãšæ£ç¢ºã«èšããšãèµ°è¡è£ 眮ã§ããå°è»ã«è£ çãããã¢ãŒã¿ãŒã®ã³ã€ã«ãäž»ã«çºããŠããé³ãªã®ã§ããã
ã京æµæ¥è¡é»éã«ãããšããã¬ããã¡ãœã©ã·ããšæãé»è»ãã¯é称ããã¬ããã¡ã€ã³ããŒã¿ããšåŒã¶ã®ã ãšããããããŠãé»è»ããªãé³éãå¥ã§ãã®ãããã€ã³ããŒã¿ãéµãæ¡ã£ãŠããã
ãã€ã³ããŒã¿ãšã¯çŽæµã亀æµã«å€ããè£ çœ®ãæãã京æµæ¥è¡é»éã®ç·è·¯ã®äžç©ºã«åŒµãããããããæ¶ç·ã«ã¯çŽæµ1500VãæµããŠãããå±æ ¹äžã®ãã³ã¿ã°ã©ããéããŠé»è»ã®åºäžãžãšåã蟌ãŸãããäžæ¹ã§2100圢ã®ã¢ãŒã¿ãŒã¯äº€æµã§åãã®ã§ãçŽæµãã亀æµãžãšå€ããªããã°ãªããªããããã§ã€ã³ããŒã¿ã®åºçªãšãªããçŽæµã®é»æ°ã¯ã€ã³ããŒã¿å ã®åå°äœã®åãã«ãããããããåãå»ãŸããããã«ããŠäº€æµãžãšå§¿ãå€ããŠããã
ã亀æµã¯é»æµã®åŒ·ããšæµããåããšãåšæçã«å€ããããã®æ§åã瀺ãããã®ããµã€ã³ã«ãŒããšãåŒã°ããæ£åŒŠæ³¢ã ãæ¬æ¥ã§ããã°æ£åŒŠæ³¢ã¯æ»ãããªæ²ç·ãæããŠããªããã°ãªããªãããã€ã³ããŒã¿ããåºåããã亀æµã¯ã©ãããŠãã®ã¶ã®ã¶ãçããæ³¢ãšãªã£ãŠããŸãããã®ã®ã¶ã®ã¶éšåãã¢ãŒã¿ãŒã®ã³ã€ã«ã鳎ãããããã¬ããã¡ã€ã³ããŒã¿ãç»å ŽããåãŸã§ãã€ã³ããŒã¿ã®é»è»ã¯ããŠã€ãŒã³ããšããããŒããªã©ãšç²é«ãé³ã鳎ãã®ãæ©ã¿ã®çš®ã§ãã£ãã
ãã®ã¶ã®ã¶éšåã®æ³¢ã«å¯ŸããŠã¯ã€ã³ããŒã¿ã«ã€ã³ãã¯ã¿ã³ã¹ããã£ãã·ã¿ã³ã¹ãšåŒã°ãããã£ã«ã¿ãŒãä»ããã°åãé€ãããããšãããã¢ãŒã¿ãŒãå¿ èŠãšãã亀æµã®åšæ³¢æ°ã¯åãåºããšãã«ã¯äœããã¹ããŒããäžããã«ã¯é«ãããªããã€ã¹ã ãŒãºã«å éããããã«åšæ³¢æ°ãé£ç¶ããŠäžããå¿ èŠããããæ®å¿µãªããã決ãŸã£ãåšæ³¢æ°ã®ãã€ãºã§ããã°åãé€ãããã£ã«ã¿ãŒã§ã¯å¹æãçºæ®ããªãã
ã2100圢ã®ã€ã³ããŒã¿ã補é ãããã€ãã®ã·ãŒã¡ã³ã¹ç€Ÿã¯èãããã®ã¶ã®ã¶éšåã«ãã£ãŠçºãããããã€ãºããªãããªãã®ã§ããã°ããããŠè³éãã®ããé³ã«ããããšãç¹ã«ãã€ãºã倧ããã®ã¯çºé²æããæé30kmçšåºŠãŸã§ã ããã®é åã§èãããã®ã¶ã®ã¶éšåã®åšæ³¢æ°ã¯ãã€ã³ããŒã¿å ã®åå°äœãåºåå¯èœãªåšæ³¢æ°ã®ç¯å²ã§ããã°èªç±ã«èšå®ã§ããã2100圢ã®å Žåã400Hz以å ã§ããã°ãããã·ãŒã¡ã³ã¹ã¯175Hzãã400HzãŸã§ã®éã«9ã€ã®é³éãèšå®ãããã¬ããã¡ãœã©ã·ãã¬ãæ£ç¢ºã«ã¯ãé·èª¿ã®ãã¡ãœã©ã·ãã¬ããã¡ãœã«çžåœããé³éãçºçãããããšãšãããããããŠãã¬ããã¡ã€ã³ããŒã¿ãèªçããã®ã§ããã
ããã¬ããã¡ã€ã³ããŒã¿ã¯2100圢ã ãã§ãªããåã京æµæ¥è¡é»éã2002幎ããå°å ¥ããæ°1000圢ãšããéå€é»è»ã®åæ補é åã«ãæ¡çšãããããŸããJRæ±æ¥æ¬ãåžžç£ç·ãæ°Žæžç·çšã«ãš1995幎ãã1997幎ã«ãããŠå°å ¥ããE501ç³»ãšããéå€é»è»ãåãããã«é³éãå¥ã§ãŠããããããã®é»è»ã®ã€ã³ããŒã¿ã¯çã·ãŒã¡ã³ã¹ç€Ÿè£œã§ãã£ãã
IGBTã®æ®å
ãæã¯æµãããã¬ããã¡ã€ã³ããŒã¿ã®æŽæ°ææã蚪ãããæ¬æ¥ãªãã°é·ã䜿ããããšããã ãããã®æã®é»å補åã¯æ éãäºæ³ãã¥ãããã²ãšãã³èª¿åãæªããªããšè£ 眮ããšåãæ¿ããªããšçŽããªãã䜿çšéå§ããåæ°å¹Žãšããå ·åã«æéã決ããŠæŽæ°ããããšãšãªãã2100圢ãE501圢ã®ãã¬ããã¡ã€ã³ããŒã¿ã¯ãã§ã«éå»ã®ãã®ãšãªã£ãããããŠãæ°1000圢ã®ãã¡æåŸãŸã§æ®ã£ã8äž¡ç·šæ1æ¬ã®ãã¬ããã¡ã€ã³ããŒã¿ã2021幎7æ20æ¥éãã§å§¿ãæ¶ããŠããã
ããã¬ããã¡ã€ã³ããŒã¿ã«ä»£ããã€ã³ããŒã¿ã¯ããããã¢ãŒã¿ãŒã®ã³ã€ã«ã鳎ãé³ãè³éãã ãšæããããªããããã§ããªããä»æ¥ã§ã¯åå°äœã«æ¹è¯ãå ãããããã¬ããã¡ã€ã³ããŒã¿ãå«ããŠäžè¬çã§ãã£ãã²ãŒãã»ã¿ãŒã³ã»ãªãã»ãµã€ãªã¹ã¿ïŒGTOãµã€ãªã¹ã¿ïŒãã絶çžã²ãŒããã€ããŒã©ãã©ã³ãžã¹ã¿ïŒIGBTïŒãäž»æµãšãªããã®ã¶ã®ã¶éšåã®åšæ³¢æ°ã¯æ°kHzãã20kHzãŸã§ãšæ Œæ®µã«é«ããªã£ããããã ãã®åšæ³¢æ°ã§ããã°äººéã®è³ã«ã¯èããã¥ããããã¡ããã2100圢ãæ°1000圢ãE501ç³»ã«æ°ãã«æèŒãããããã«ãªã£ãã€ã³ããŒã¿ã®åå°äœãIGBTã§ããã
ãäžè¬ã«èŠªããŸããŠããééã®é³ãšãããšããŸãã¯ã¬ã¿ã³ãŽãã³ãšè»èŒªãã¬ãŒã«ã®ç¶ç®ãéãé³ãããããã·ã¥ãã·ã¥ãããããšããèžæ°æ©é¢è»ãè¿å¹Žã§ã¯ãã¬ããã¡ã€ã³ããŒã¿ã ããã®å ãæè¡ã®é²å±ã§ééããŸãæ°ããªé³ãçºããããã«ãªããããããªãããã®ãšãã¯äœãšåŒã°ããã®ã§ããããã
ïŒæïŒæ¢ åæ·³ïŒééãžã£ãŒããªã¹ãïŒ
âæ¢ åæ·³ïŒééãžã£ãŒããªã¹ã
1965(æå40)幎çãŸãã倧åŠåæ¥åŸãäžäºéè¡(çŸåšã®äžäºäœåéè¡)ã«å ¥è¡ãã亀å瀟æåãééãã¡ã³ãç·šééšãªã©ãçµãŠ2000幎ã«ééãžã£ãŒããªã¹ããšããŠæŽ»åãéå§ããããæ°å¹¹ç·ãéè¡ããæè¡ã(SBã¯ãªãšã€ãã£ã)ããJRã¯çãæ®ããã®ãã(æŽæ³ç€Ÿ)ããé»è»ãã¡ã®ã第äºã®äººçãã(亀éæ°è瀟)ãã¯ããèæžå€æ°ããŸããéèªãWEBåªäœãžã®å¯çš¿ã®ã»ããè¬çŸ©ã»è¬æŒããã¬ãã»ã©ãžãªã»æ°èçã§ã®è§£èª¬ãã³ã¡ã³ããè¡ã£ãŠãããNHKã©ãžãªç¬¬1ã®ãåã©ãç§åŠé»è©±çžè«ãã§ã¯éééšéã®åçè ãåããã