An Intelligent Maximum Power Point Using a Fuzzy Log Controller under Severe Weather Conditions

Table 4

Values of model outputs.

Case no.	Condition	Ir1 (W/m^2)	Ir2 (W/m^2)	Nominal power (W)	Power after fuzzy (W)	Efficiency
1	Uniform irradiation	1000	1000	149	149	100%
2	Uniform irradiation	900	900	133	133	100%
3	Uniform irradiation	800	800	118	117.5	99.6%
4	Uniform irradiation	700	700	102.5	101.5	99%
5	Uniform irradiation	600	600	87.2	87	99.8%
6	Uniform irradiation	500	500	71.3	70.8	99.3%
7	Uniform irradiation	400	400	56.5	56	99%
8	Uniform irradiation	300	300	41.5	41	99%
9	Uniform irradiation	200	200	26.6	24.5	92%
10	Partial shading	1000	800	126.3	126	99.8%
11	Partial shading	900	600	95.7	94	98%
12	Partial shading	800	500	79.5	79	99.4%
13	Partial shading	700	500	78.2	78	99.7%
14	Partial shading	600	400	62.3	62	99.5%
15	Partial shading	900	300	61.4	60	97.7%
16	Partial shading	700	300	48	47.5	99%
17	Partial shading	500	300	46.3	46	99.4%