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[ICROS 2019] ÀÌ¾È ÇÇÅͽ¼ ±³¼ö ÃÊû °­¿¬¡®ºÒÈ®½Ç¼ºÀ» °®´Â ½Ã½ºÅÛÀÇ °­ÀÎ Á¦¾î¡¯¸¦ ÁÖÁ¦·Î ÁøÇà
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Æ®À§ÅÍ Ä«Ä«¿ÀÅå ÆäÀ̽ººÏ
¡ã È£ÁÖ±¹¸³´ë ÀÌ¾È ÇÇÅͽ¼(Ian Petersen) ±³¼ö

ICROS 2019¿¡¼­ È£ÁÖ±¹¸³´ë ÀÌ¾È ÇÇÅͽ¼(Ian Petersen) ±³¼ö´Â ‘ºÒÈ®½Ç¼ºÀ» °®´Â ½Ã½ºÅÛÀÇ °­ÀÎ Á¦¾î(Robust Control of Uncertain Systems)’¸¦ ÁÖÁ¦·Î ÃÊû °­¿¬À» ÁøÇàÇß´Ù.

À̹ø ¹ßÇ¥´Â “I. R. Petersen and R. Tempo. Robust control of uncertain systems: Classical results and recent developments. Automatica, 50:1315-1335, 2014” ³í¹®À» ±â¹ÝÀ¸·Î Çϸç, ºÒÈ®½Ç¼ºÀ» °®´Â½Ã½ºÅÛ¿¡¼­ °­ÀÎ Á¦¾î ¿¬±¸ °á°úµéÀ» Àü¹ÝÀûÀ¸·Î ´Ù·ç°í ÀÖ´Ù.

°­ÀÎ Á¦¾î°¡ º»°ÝÀûÀ¸·Î ¿¬±¸ µÇ¾ú´ø °è±â´Â ±âÁ¸ ÃÖÀû Á¦¾î ¹æ¹ý Áß ÇϳªÀÎ linear quadratic Gaussian optimal control ¹æ¹ýÀÌ ½ÇÁ¦ ½Ã½ºÅÛ¿¡¼­ Á¸ÀçÇÏ´Â ºÒÈ®½Ç¼ºÀ» °í·ÁÇÏÁö ¾Ê¾Æ¼­ ¼º´ÉÀÌ ¿¹»ó´ë·Î Àß ¸ÂÁö ¾Ê¾Ò°í, ¾ÈÁ¤¼ºÀÌ ºÎÁ·ÇÏ¿´´Ù´Â Á¡ÀÌ´Ù.

ÀÌ¿¡ 1981³â Zames´Â H-infinity control ¹æ¹ýÀ» Á¤¸³ÇÏ¿´°í, ÀÌ ¹æ¹ýÀº °­ÀÎ Á¦¾î À̷п¡ ´ëÇÑ ±â¹ÝÀÌ µÈ´Ù. ºÒÈ®½Ç¼ºÀ» Æ÷ÇÔÇÑ ½Ã½ºÅÛÀ» ¼öÇÐÀûÀ¸·Î Ç¥ÇöÇÏ´Â ´ëÇ¥ÀûÀÎ ¸ðµ¨Àº linear fractional transformation modelÀÌ ÀÖ´Ù.

ÀÌ´Â ¿ì¸®°¡ ¾Ë°í ÀÖ´Â °øĪ ¸ðµ¨ÀÇ ÀÔ·Â, ½Ã½ºÅÛ, Ãâ·Â ¸ðµ¨¿¡ ´ëÇÑ °ü°è¿¡¼­ ½Ã½ºÅÛ ºÒÈ®½Ç¼º¿¡ ÀÇÇÑ ¿µÇâ±îÁö °°ÀÌ °í·ÁÇÏ¿© Çà·Ä·Î Ç¥ÇöÇÏ´Â ¹æ¹ýÀ¸·Î, ½Ã½ºÅÛÀÇ °­Àμº ¹× H-infinity control ¼³°è¿¡ ±â¹ÝÀÌ µÈ´Ù.

ºñ±¸Á¶È­µÈ ºÒÈ®½Ç¼ºÀº Positive real uncertainty ¹× Negative imaginary uncertainty·Î ³ª´­ ¼ö Àִµ¥, ÀüÀÚ´Â ÁÖ·Î ±â°è ½Ã½ºÅÛ¿¡¼­ Èû ÀԷ°ú ¼Óµµ Ãâ·ÂÀÇ °ü°è¿¡¼­ ÀÚÁÖ ³ªÅ¸³ª°í, ÈÄÀÚ´Â ÁÖ·Î ±â°è ½Ã½ºÅÛ¿¡¼­ Èû ÀԷ°úÀ§Ä¡ Ãâ·Â °ü°è¿¡¼­ ³ªÅ¸³­´Ù.

À§ Á¤Àǵé°ú ºÐ¼® ¹æ¹ýÀ» ±âÃÊ·Î ºÒÈ®½ÇÇÑ ½Ã½ºÅÛÀÇ °­ÀμºÀ» ºÐ¼®ÇÑ´Ù. Small Gain Theorem, Quadratic stability, Positive real function, passivity µî °íÀü À̷еéÀ» ¼Ò°³ÇÏ¿´°í, Negative imaginary stability °³³äÀ» ÀÌ¿ëÇÑ °­ÀÎ ¾ÈÁ¤¼ºÀ» º¸¿´´Ù. ¸¶Áö¸·À¸·Î H-infinity control ¹®Á¦¸¦ °ø½ÄÈ­ÇÏ°í °­ÀμºÀ» °®´Â Á¶°ÇÀ» Á¦½ÃÇÏ¿´´Ù.


ÀÌ¾È ÇÇÅͽ¼ ±³¼ö´Â È£ÁÖ ºòÅ丮¾Æ(Victoria) Ãâ½ÅÀ¸·Î, 1984³â ·Îü½ºÅÍ(Rochester)´ëÇп¡¼­ ÀüÀÚ°øÇÐÀ¸·Î ¹Ú»çÇÐÀ§¸¦ ¼ö¿©¹Þ¾Ò´Ù. 1983³âºÎÅÍ 1985³â±îÁö È£ÁÖ±¹¸³´ëÇп¡¼­ ¹Ú»çÈÄ°úÁ¤À» ¸¶Ä¡°í, ±× ÈÄ 2016³â±îÁöUNSW ĵ¹ö¶óÀÇ Á¤º¸±â¼ú °øÇÐÀü¹®´ëÇÐÀÇ ±³¼ö·Î ±Ù¹«ÇßÀ¸¸ç 2017³âºÎÅÍ È£ÁÖ±¹¸³´ëÇÐÀÇ ±³¼ö·Î ÀçÁ÷ÇÏ°í ÀÖ´Ù.

±×´Â ARC Executive Director for Mathematics Information and Communication, Deputy Vice-Chancellor Research for UNSW ¹×Australian Federation Fellow·Î È°µ¿ÇÏ°í ÀÖ´Ù. ¶Ç IEEE Transactions on Automatic Control, Systems and Control letters,
Automatica, IEEE Transactions on Control System Technology, SIAM Journal on Control and OptimizationÀÇ Associate editor·Î È°µ¿Çß´Ù. ±×¸®°íIFAC ¹× IEEE and the Australian Academy of ScienceÀÇ fellowÀÌ´Ù. ÁÖ ¿¬±¸ ºÐ¾ß´Â °­ÀÎ Á¦¾î, ¾çÀÚ Á¦¾î ¹× È®·ü Á¦¾îÀÌ´Ù.

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