Power quality analysis of hybrid renewable energy system

Figures & data

Figure 1. Equivalent circuit diagram of a PV cell.

Figure 2. I–V characteristics of the PV cell.

Figure 3. I–V characteristics of the PV array.

Figure 4. (a) I–V and (b) P–V curve of a PV array with variable irradiance.

Figure 5. (a) P–V and (b) I–V curve of a PV array with variable temperature.

Table

PV arrayTemperature (K)Solar irradiance (W/m^2)	25 + 273.15, 30 + 273.15, 35 + 273.15, 40 + 273.15200, 400, 600, 800
Boost converter	L = 1 mH, C = 50 μF
LC filter	L = 10 μH, C = 350 μF
Wind speed (m/s^2)Wind turbine	11, 10, 12, 13, 9, 11, 14Pn = 1.5e 6, β = 0°, λ = 8.1, Cp = 0.48, base power = 1.67e 6 VA, base wind speed = 12 m/s
SEIG	Pn = 7.5 VA, V(L-L) = 415 V, Rs = 0.9 Ω, Rr^′ = 0.66 Ω, Lls = 0.00457 H, Llr^′ = 0.00457 H, J = 0.1384 kgm^2, F = 0 Nm, p = 2

Table 1. Parameters of KC200GT array at 25°C, 1000 W/m² (Kyocera KC200GT, xxxx)

Parameters	KC200GT
Voc	32.9 V
Isc	8.21 A
KV	−0.1230 V/K
KI	0.0032 A/K
Pmax	200.143 W
Rp	415.405 Ω
Rs	0.221 Ω
a	1.3
Ns	54

Figure 6. Flowchart of P & O method.

Figure 7. Circuit diagram of step-up DC-DC converter.

Figure 8. Configuration of three-phase VSI with LC filter.

Figure 9. Equivalent circuit of CAG.

Figure 10. Schematic diagram of current-controlled voltage source inverter (CC-VSI).

Figure 11. Model of the proposed standalone hybrid solar, wind, and microhydro system feeding three-phase loads.

Figure 12. Simulink model of hybrid PV, wind, and microhydro system.

Figure 13. Voltage and current waveforms of PV array (a) before DC-AC converter and (b) after DC-AC converter under no load conditions.

Figure 14. Voltage and current waveforms of (a) WES and (b) MHS under no load conditions.

Figure 15. Voltage and current waveforms of hybrid system under no-load condition.

Figure 16. Voltage and current waveforms of hybrid system under IM, R, and RL loads.

Figure 17. Voltage and current waveforms of hybrid system with STATCOM under IM, R, and RL loads.

Figure 18. THD of system voltages under IM, R, and RL loads.

Figure 19. THD of system currents under IM, R, and RL loads.

Kyocera KC200GT. (xxxx). Solar photovoltaic power modules datasheet. High efficiency multi crystal photo voltaic module.

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