Photovoltaic power stations, also known as solar photovoltaic power stations, refer to photovoltaic power generation systems that are connected to the grid and transmit electricity to the grid. Photovoltaic power plants have become an important source of electricity supply worldwide, and regular testing cannot be ignored to ensure their efficient and safe operation.
Photovoltaic power station testing project content
The testing content of photovoltaic power plants involves multiple aspects, which need to be evaluated and tested through professional testing equipment and testing technology to ensure the normal operation and safety of the power station. The main items of photovoltaic power station testing and acceptance are as follows: 1. Document verification: basic information of the project; basic documents; contract compliance of power station equipment; 2. Construction quality verification: verification of actual installed capacity; photovoltaic module inspection; Combiner box inspection; AC and DC distribution cabinets, box transformer inspection; photovoltaic bracket/photovoltaic array field/inverter room inspection; Connecting cable inspection; grounding flat steel welding and anti-corrosion paint; Electric shock protection and ground protection inspection; monitoring system inspection; 3. Power station performance test: electrical performance test of photovoltaic modules; infrared detection; (IR test), (IV test); Electroluminescence Characteristic Test (EL); photovoltaic array insulation resistance; grounding resistance and grounding continuity test of photovoltaic power stations; polarity test; string working current test, string power test; Inverter efficiency, inverter power quality test; thermal imaging test of electrical connections in the station; bracket galvanizing test; Dust power loss; Power station system energy efficiency ratio (PR) test;
Acceptance standards for photovoltaic power stations
GB/T 50796-2012 Acceptance specification for photovoltaic power generation projects GB 50797-2012 Design specification for photovoltaic power station GB 50794-2012 Construction specification for photovoltaic power station GB/T 20513-2006 Guidelines for measurement, data exchange and analysis of photovoltaic system performance CNCA/CTS 0004-2010 Basic requirements for acceptance of grid-connected photovoltaic power generation system engineering CNCA/CTS 0016-2015 Technical specification for performance testing and quality evaluation of grid-connected photovoltaic power stations CQC 9102-2012 Technical requirements for evaluation of photovoltaic power generation systems CGC/GF 003.1:2009 Basic requirements for engineering acceptance of grid-connected photovoltaic power generation systems IEC 62446:2009 Basic requirements for documentation, commissioning testing and inspection of grid-connected photovoltaic power generation systems IEC 62446-1-2016 Requirements for testing, documentation and maintenance of photovoltaic (PV) systems Section: Grid-connected systems Documentation, commissioning and inspection