Analysis of fault detection and defect categorization in photovoltaic inverters for enhanced reliability and efficiency in large-scale solar energy systems

Special Issue on ‘EU PVSEC 2024: State of the Art and Developments in Photovoltaics’, edited by Robert Kenny and Gabriele Eder

Open Access

Table 1

Overview of the available parameters per inverter (area: inverter) and per system (system status and environment). The values are available at a 1-minute time resolution.

Area	Parameter	Abbreviation	Unit
Inverter	AC reactive power	Q_AC	kvar
	AC active power	P_AC	kW
	AC current L1	I_AC L1	A
	AC current L2	I_AC L2	A
	AC current L3	I_AC L3	A
	DC voltage	V_DC	V
	DC power	P_DC	kW
	DC current	I_DC	A
	Temperature of heatsink of inverter	T_Matrix	°C
System status	Inverter state	n/a	n/a
	PV state
	System state
	Inverter error curtailment
Environment	Irradiance in plane of array	G_POA	W/m²
	Sun position	Azimuth, elevation	°
	Ambient temperature	T_amb	°C

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