Method and system for performance test of acquisition execution unit

• Main Authors: DONG XUECHENG, ZHANG LINPENG, TANG YI, WANG HUIPING, LI XIAOZONG, ZHANG JIASHU, ZHANG XIN, MENG JIANGWEN, WU JIANCHAO, ZHANG YIFAN, ZHANG XIAOLI, XU KAI, SONG LIANGLIANG, CUI SHUANG, SHI WEN, XIA YE, HANG TIANQI, PANG FUBIN, LI WEI, LI ZHONGQING, LIU HUIHAI, MA WEI, QI SUJUAN, HAN QIANG
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a method and system for testing the performance of an acquisition execution unit, and belongs to the technical field of power system relay protection. The method comprises the following steps: controlling a test device to output a voltage and current analog quantity 0 value to a to-be-tested acquisition execution unit; outputting the digital quantity; the method comprises the following steps of: obtaining an analog quantity sampling value and a digital quantity sampling value, performing interpolation processing on the digital quantity sampling value according to the analog quantity sampling value, and performing fast Fourier transform (FFT) operation on the digital quantity sampling value and the analog quantity sampling value after the interpolation processing so as to obtain amplitudes and phases of the analog quantity sampling value and the digital quantity sampling value; and obtaining a ratio difference value and a phase difference value of the analog quantity sampling value and