04-07-2023 дата публикации
Номер: CN116381331A
Автор:
ZHOU FENG,
ZHAO BING,
HUANG JUNCHANG,
BAI JINGFEN,
HU HAOLIANG,
DU XINGANG,
MENG JING,
GE DEHUI,
LI ZHONGQING,
XIONG QIANZHU,
ZENG FEITONG,
NIE QI,
LI XIAOFEI,
CHEN YUZHUO,
PAN RUI,
LIU JING,
YANG CHUNYAN,
YANG YUBO,
JIANG YIQIN,
XU XITONG
Принадлежит:
The invention discloses a multipath digital electric energy metering board card, which comprises a multipath message access unit, an APSoC unit and an auxiliary unit, the message access unit comprises five 100M SFP interfaces and is used for realizing IEC61850-9-2 protocol sampling value message access and forwarding to the APSoC unit, the APSoC unit is composed of an FPGA core and an ARM core, the FPGA core is connected with the auxiliary unit, and the auxiliary unit is connected with the APSoC unit. The FPGA core analyzes an IEC61850-9-2 protocol message and obtains sampling data, further, intermediate dot product metering and electrical parameter measurement are achieved, a calculation result is sent to the ARM core through an internal AXI bus, overall accumulation calculation, storage management and communication of multi-path electric energy are achieved through the ARM core, and finally synchronous electric energy metering of the maximum five metering points is achieved. The auxiliary ...
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