Inverter efficiency test method

• Main Authors: GAO DELAN, CAO SHANQIAO, LI ZHIYAO, LI SEN, WANG JUAN, GUO PENG, WANG LIJIE, ZHANG JIANXIN
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

The invention relates to an inverter efficiency testing method. The method comprises: shutting down and powering off an inverter; wiring a power tester; the inverter supplying power for operation; starting up the tester and setting; testing and recording; shutting down the inverter again to be powered off; the tester being disconnected, and restoring the inverter; exporting test data; analyzing and calculating test data. According to the invention, the total efficiency of the inverter in actual operation of the photovoltaic power station can be tested. The inverter efficiency is calculated according to an efficiency weighting formula and an inverter test data interval selection mode, and the efficiency value is accurate and reliable. The method can effectively evaluate the performance of the inverter in actual operation, and has great application value for the design and model selection of the inverter of the photovoltaic power station. 本发明涉及一种逆变器效率测试方法，包括：逆变器停机断电；功率测试仪接线；逆变器送电运行；测试仪开机设置；测试记录；逆变器再次停机断电；测试仪拆线、