TY - JOUR AU - Hasegawa, Kiyoshi AB - HIROFUMI AKAGI, SATOSHI ATOH, AKIRA NABAE Technological University of Nagaoka YOICHIRO ABE, YUTAKA KURODA and KIYOSHI HASEGAWA Kansai Electric Power Company Introduction With the development of large-capacity industrial power apparatus, suppression of their harmonics is becoming increasingly important. Harmonic suppression of thyristorcontrolled equipment is particularly important. The problem has been studed widely [ l - 61 and active filters which use selfextinction type semiconducting elements such as GTO and SI thyristors are drawing special attention [ 7 - 91. Their performances are greatly dependent on Generally speaking, three-phase instantaneous power p is given by p=e.i.+ eDi.+cmim (3) (1) the compensation algorithm of harmonic current; (2) construction of high-efficiency large-capacity converters; and which is rewritten on the a Fig. 1 as follows: 8 plane in (3) a current control algorithm. Here we introduce a new concept of instantaneous imaginary power vector q, which is defined by [ 101 Nakamura et al. developed multiplecurrent source type active filters (800 kVA) and confirmed their effectiveness by field tests [7]. However, current-source type filters cause difficulties associated with energy stored in the power source PWM converter with average switching frequency of 1.5 to 2 kHZ. It compensates the 5th and 7th harmonic TI - Active filters for suppressing harmonics using multiple voltage source type PWM converters JO - Electrical Engineering in Japan DO - 10.1002/eej.4391050506 DA - 1985-01-01 UR - https://www.deepdyve.com/lp/wiley/active-filters-for-suppressing-harmonics-using-multiple-voltage-source-imsJXNJDVQ SP - 42 EP - 50 VL - 105 IS - 5 DP - DeepDyve ER -