A New Efficient Mppt Control Algorithm for Low Insolation Intensity

  • 발행 : 2002.04.01

초록

In this paper, the effectiveness of three different control algorithms are thoroughly investigated via simulation and a proposed efficiency evaluation method of experimentation. Both the steady state and transient characteristics of each control algorithm along with its measured efficiency are analyzed. Finally, a novel two-mode maximum power point tracking (MPPT) control algorithm combining the constant voltage control and the incremental conduction (IncCond) methods is proposed to improve the efficiency of the 3KW PV power generation system at different insolation conditions. Experimental results show that the proposed two-mode MPPT control provides excellent performance at less than 30% insolation intensity, covering the whole insolation area without additional hardware circuitry.

키워드

참고문헌

  1. S.W. Angrist, Direct energy conversion 2nd ed., Al-lyn and Bacon 1971, pp. 190- 200
  2. K.H. Hussein and I. Mutta, 'Modified algorithms for photovoltaic maximum power tracking,' Record of 1992 Joint Conference of Electrical and Electronics Engineers in Kyushu, Japan, pp. 301 - 307, Oct. 1991
  3. K.H. Hussein et al., 'Maximum photovoltaic power tracking: An algorithm for rapidly changing atmos-pheric conditions,' Proc. Inst. Elect. Eng. vol. 142, pt. G, no. 1, pp. 59-64, Jan. 1995