CAJ | 학술논문

针对监测光伏逆变器实际运行性能的需求，以多功能高速采集卡和工控机为硬件环境，以LabVIEW为上位机软件建立了基于虚拟仪器技术的逆变器运行状态监测系统，实现了对光伏逆变器的输入DC电量以及输出AC电量的实时可视化监测和分析。详细介绍了软件并行结构设计、逆变器电能质量分析、各环节效率检测的算法和实现方式。测试结果和实用效果表明整个系统在数据采集、分析、显示和存储等方面都具有优良的性能，体现了虚拟仪器在此检测系统中的优越性。
침대감측광복역변기실제운행성능적수구，이다공능고속채집잡화공공궤위경건배경，이LabVIEW위상위궤연건건립료기우허의의기기술적역변기운행상태감측계통，실현료대광복역변기적수입DC전량이급수출AC전량적실시가시화감측화분석。상세개소료연건병행결구설계、역변기전능질량분석、각배절효솔검측적산법화실현방식。측시결과화실용효과표명정개계통재수거채집、분석、현시화존저등방면도구유우량적성능，체현료허의의기재차검측계통중적우월성。
To meet the need for evaluating the performance of grid-tied PV inverters, this paper builds a virtual instru-ment-based PV inverter monitoring system, whose hardware is based on high speed data acquisition card and industrial personal computer, and software is developed using LabVIEW. The system can measure and analyze the input DC pa-rameters and the output AC parameters of a PV inverter in real time and visually. The software designing method, power quality analysis algorithm and power conversion efficiency calculation method are described in detail. Experi-mental and operational results prove the system’ s superiority in terms of data acquisition, analysis, visualization and storage.