A Simple and Efficient MPPT Method for Low-Power PV Cells

Table 1

Computed V _OC, V _MPP; and P _MPP data at fourteen points of irradiance, logarithmically equally spaced, and for different values of the parameters of the PV cell model.

G  (W/m^2)	𝑛d=1.5 (Figure 1)			𝑛d=1			𝑛d=2			𝑟s=0.1 (Figure 6)			𝑟p=10 (Figure 8)
	V OC  (V)	V MPP  (V)	P MPP  (mW)	V OC  (V)	V MPP  (V)	P MPP  (mW)	V OC  (V)	V MPP  (V)	P MPP  (mW)	V OC  (V)	V MPP  (V)	P MPP  (mW)	V OC  (V)	V MPP  (V)	P MPP  (mW)
23.7	0.262	0.194	0.135	0.262	0.207	0.153	0.262	0.185	0.121	0.262	0.193	0.134
31.6	0.311	0.237	0.227	0.311	0.251	0.254	0.311	0.226	0.205	0.311	0.235	0.225
42.2	0.357	0.277	0.362	0.357	0.293	0.401	0.357	0.264	0.330	0.357	0.275	0.359	0.241	0.126	0.095
56.2	0.398	0.313	0.553	0.398	0.331	0.609	0.398	0.300	0.507	0.398	0.311	0.548	0.306	0.168	0.168
75	0.434	0.347	0.826	0.434	0.365	0.904	0.434	0.332	0.761	0.434	0.343	0.816	0.369	0.221	0.299
100	0.467	0.376	1.2	0.467	0.396	1.312	0.467	0.361	1.113	0.467	0.372	1.186	0.42	0.282	0.524
133.4	0.495	0.402	1.725	0.495	0.422	1.874	0.495	0.385	1.600	0.495	0.395	1.693	0.462	0.337	0.899
177.8	0.518	0.423	2.431	0.518	0.444	2.635	0.518	0.406	2.259	0.518	0.415	2.374	0.494	0.379	1.477
237.1	0.537	0.440	3.38	0.537	0.461	3.657	0.537	0.422	3.146	0.537	0.429	3.279	0.519	0.409	2.321
316.2	0.55	0.452	4.64	0.55	0.474	5.013	0.55	0.434	4.321	0.55	0.437	4.458	0.537	0.43	3.500
421.7	0.558	0.458	6.28	0.558	0.481	6.786	0.558	0.441	5.853	0.558	0.439	5.961	0.548	0.443	5.094
562.3	0.56	0.459	8.386	0.56	0.482	9.067	0.56	0.441	7.812	0.56	0.433	7.821	0.553	0.448	7.185
749.9	0.555	0.454	11.031	0.555	0.477	11.943	0.555	0.436	10.264	0.555	0.42	10.035	0.55	0.446	9.850
1000	0.543	0.442	14.254	0.543	0.464	15.472	0.543	0.424	13.234	0.543	0.398	12.511	0.54	0.436	13.13