This standard specifies the technical requirements for connecting photovoltaic power stations to the power system. This standard applies to new, renovated, and expanded photovoltaic power stations connected to the public grid through voltage levels of 35kV and above, as well as through voltage levels of 10kV and above. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 12325 Power Quality Voltage Deviation GB/T 12326 Power Quality Voltage Fluctuation and Flicker GB/T14549 Power Quality Public Grid Harmonics GB/T15543 Power Quality Three Phase Voltage Unbalance GB/T19862 General Requirements for Power Quality Monitoring Equipment GB/T 24337 Power Quality Public Grid Interharmonics DL/T448 Technical Management Regulations for Power Measurement Devices DL/T 1040 Power Grid Operation Guidelines 3 Terms and Definitions The following terms and definitions apply to this document 3.1 Photovoltaic (PV) power station is a power generation system that utilizes the photovoltaic effect of photovoltaic cells to directly convert solar radiation into electrical energy. It generally includes transformers, inverters, photovoltaic arrays, and related auxiliary facilities. 3.2 Inverter is a device that converts direct current into alternating current 3.3 Point of connection for photovoltaic power stations with booster stations refers to the high-voltage side bus or node of the booster station; For photovoltaic power stations without booster stations, it refers to the output summary point of the photovoltaic power station
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