Direct-current dynamic electric energy measuring system and method

• Main Authors: SONG XIAOHUI, LI ZONGRONG, BAI JINGFEN, JU HANJI, GE YANAN, CEN WEI, LI HUA, ZHAO SIXIANG, YANG YUBO, XU XITONG, GENG AILING, WANG MENG, CHEN HAO, JIAO DONGXIANG, JIA FUQUAN, YUAN RUIMING, DUAN XIAOMENG, JIANG YIQIN, MENG JING, DUAN YONGXIAN, ZHENG ANGANG, ZHANG LI
• Format: Patent
• Language: Chinese; English
• Published: 20.08.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a direct-current dynamic electric energy measurement system and method, and belongs to the technical field of electric energy measurement. The system comprises an ADC sampling unit which is used for collecting voltage and current analog signals of a DC power distribution network and converting the current and voltage analog signals into digital signals; the low-pass filtering unit is used for performing low-pass filtering on the digital signal; the low-frequency signal frequency measurement unit is used for acquiring a first measurement result; the high-pass filtering unit is used for performing high-pass filtering on the digital signal; the high-frequency signal frequency measuring unit is used for acquiring a second measuring result; the calculation unit based on the frequency adaptive multi-order quasi-synchronization algorithm is used for calculating to obtain voltage and current signals; and the direct-current dynamic electric energy metering unit is used for determining direct-cu