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¹Ì±¹ µ¿ºÎÁö¿ª Àü·Â¸ÁÀÇ »óÈ£¿¬°á(Interconnections) Áö¿ª Àü·Âȸ»ç(utilities)¿Í ½Ã½ºÅÛ ¿î¿µÀÚ(system operators)µéÀº Àü·Â¸Á »óȲÀ» º¸´Ù ºü¸£°í ±¤¹üÀ§ÇÏ°Ô º¼ ¼ö ÀÖµµ·Ï ¼³°èµÈ Àåºñ¸¦ ±×µéÀÇ ¼ÛÀü¸Á ½Ã¼³¿¡ ¼³Ä¡Çϰí ÀÖ´Ù°í 11ÀÏ ¿ö½ÌÅÏ¿¡¼­ ¿­¸° ÄÁÆÛ·±½ºÀÇ ¹ßÇ¥ÀÚµéÀÌ ¹àÇû´Ù.

Àü·Â À¯Æ¿¸®Æ¼µé°ú Àåºñ Á¦ÀÛȸ»ç, ¹Ì±¹ ¿¡³ÊÁöºÎ(DOE) ¹× »êÇÏ ¿¬±¸¼ÒµéÀÌ °³¹ßÇÑ PEIP(Portions of the Eastern Interconnection Phasor) ÇÁ·ÎÁ§Æ®´Â ¼ÛÀü ½Ã½ºÅÛ ¿î¿µÀÚ°¡ º¸´Ù ªÀº ½Ã°£ Áֱ⿡ °ÉÃÄ Àü·Â¸Á Á¶°ÇÀ» º¸´Ù Àß ÆÄ¾ÇÇÒ ¼ö ÀÖµµ·Ï ½Ç½ÃµÇ¸ç, ½Ç½Ã°£ µ¥ÀÌÅ͸¦ Á¦°øÇϱâ À§ÇØ »ç¿ëµÈ´Ù.

ÀÌ ½Ã½ºÅÛÀº »ó(phasor) ÃøÁ¤ ÀåÄ¡¿¡ ÀÇÁ¸ÇÏ´Â °ÍÀ̸ç, ÀÌ ÀåÄ¡´Â Àü¾Ð¼öÁذú ´Ù¸¥ µ¥ÀÌÅÍÀÇ ÃøÁ¤ ¹× Á߰踦 À§ÇØ ±¤¼¶À¯ ³×Æ®¿öÅ©¸¦ »ç¿ëÇÑ´Ù.

DOE »êÇÏÀÇ ±¹¸³¿¬±¸¼ÒÀÎ PNNL(Pacific Northwest National Laboratory)ÀÇ ¸ÅÆ® µµ³Ú¸®´Â Àü·Â À¯Æ¿¸®Æ¼ÀÎ Ameren, Entergy, TVA(Tennessee Valley Authority) ¹× ´º¿å ISO(New York Independent System Operator) µîÀº 35°³ ÀÌ»óÀÇ ÃøÁ¤ÀåÄ¡¸¦ »óÈ£¿¬°á Áö¿ª¿¡ ¼³Ä¡Çß´Ù°í ¸»Çß´Ù.

Entergy, TVA ¹× NYISO µîÀÇ Àü·Â À¯Æ¿¸®Æ¼µé°ú ISOµéÀº Àü·Â¸Á »óȲÀ» °¨½ÃÇÏ´Â ÄÄÇ»ÅÍ ÀÀ¿ë ÇÁ·Î±×·¥ÀÎ »óȲ °¨Áö±â(State estimators)°¡ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇϱ⠽ÃÀÛÇß´Ù°í PNNLÀÇ Ä® ÀÓÈ£ÇÁ´Â ¸»Çß´Ù.

ÀÌ ÇÁ·ÎÁ§Æ®´Â Áö³­ 2003³â 8¿ù 14ÀÏÀÇ ºÏ¹Ì ´ëÁ¤Àü »ç°í¸¦ Ã˹ßÇß´ø Àü·Â¸Á ¿î¿µÀÚµé °£ÀÇ Àü·Â¸Á ½Ã°è(visibility) ¹× ¡°»óȲ °¨Áö(situational awareness)¡± ¹®Á¦¸¦ °³¼±Çϵµ·Ï ¸¸µé¾îÁø °ÍÀÌ´Ù.

Àüü »óÈ£¿¬°á Áö¿ª¿¡ °ÉÃÄ Àåºñ¼³Ä¡°¡ Áõ°¡ÇÏ°Ô µÇ¸é ÇÑ Áö¿ªÀÇ ¿î¿µÀÚµéÀº ±×µé ¿µ¿ªÀÇ ¿îÀü¿¡ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Â ´Ù¸¥ Áö¿ªÀÇ Àü·Â¸Á »óȲÀ» ÇÑ ´«¿¡ º¼ ¼ö ÀÖ°Ô µÈ´Ù°í µµ³Ú¸®´Â ¸»Çß´Ù.

ÄÁ¼³ÆÃ ȸ»çÀÎ KEMA´Â ÀÌ ÇÁ·ÎÁ§Æ®¸¦ ÃßÁøÇÏ·Á´Â À¯Æ¿¸®Æ¼µé¿¡°Ô ÀÌÀÇ °¡Ä¡¸¦ È®½Å½ÃÄÑ ÁÖ´Â µ¥ »ç¿ëµÉ º¸°í¼­¸¦ ÀÛ¼ºÇϰí ÀÖ´Ù. ÀÌ º¸°í¼­´Â ´ÙÀ½ ´Þ ´Ê°Ô ¹ß°£µÉ ¿¹Á¤À̶ó°í ÀÓÈ£ÇÁ´Â ¸»Çß´Ù. ¶ÇÇÑ ÇâÈÄ ÀÀ¿ëÀ» ÇÏ°Ô µÇ¸é Àü·Â¸Á ¿îÀüÀ» ÀÚµ¿À¸·Î Á¦¾îÇÒ ¼ö ÀÖ°Ô µÇ°í, ÀÌ¿¡ µû¶ó Àü·Â»ê¾÷°èÀÇ ¸¹Àº ȸ»çµéÀÌ ¿À·§µ¿¾È Ãß±¸ÇؿԴø ¡°½º¸¶Æ® Àü·Â¸Á(smart grid)\"ÀÌ ½ÇÇöµÇ´Â ³¯ÀÌ ¿Ã °ÍÀ̶ó°í µµ³Ú¸®´Â ¸»Çß´Ù.

US utilities installing enhanced grid monitoring equipment

Washington (Platts)--11Oct2005

Utilities and system operators in the Eastern Interconnection are
installing equipment on their transmission facilities designed to give them a quicker and broader picture of grid operating conditions, speakers said Tuesday at a Washington conference.

Portions of the Eastern Interconnection Phasor project, developed by
utilities, equipment manufacturers, the US Dept of Energy and its
laboratorties, are installed and being used to provide real-time data so
transmission system operators can have a better picture of grid conditions in a shorter period of time.

The system relies on phasor measuring units, which use a fiber-optic network to measure and relay voltage levels and other data.

More than 35 instruments have been installed in the interconnection by
utilities Ameren, Entergy, the Tennessee Valley Authority and the New York Independent System Operator, said Matt Donnelly of DOE\'s Pacific Northwest National Laboratory. State estimators, which are computer applications that monitor grid conditions for utilities and ISOs, at Entergy, TVA and NYISO are starting to use the data, said Carl Imhoff of PNNL.
The project is designed to improve visibility of grid conditions among
operators and \"situational awareness,\" which was a factor that led to the Aug 14, 2003 blackout. With more equipment installed across the entire
interconnection, operators in one region will be able to see grid conditions in other regions that could affect operations in their territory, said Donnelly.

Consulting firm KEMA is working on a report that will be used to convince utilities of the value of pursuing the project, and the report should be available late next month, Imhoff said. Future applications could allow for automated control of grid operations, leading to a \"smart grid\" that many in the electric industry have been pursuing for years, Donnelly said.
---Tom Tiernan, tom_tiernan@platts.com

http://www.platts.com/Electric%20Power/headlines.jsp
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