The invention discloses a comprehensive collection method and a device with three-state data of electrical parameters:
steady state, fault recorder data and
dynamic data, and the device is characterized in that the device consists of a high-precision
time synchronization module, a synchronous sampling pulse module, an
alternating current signal conditioning module, an A / D sampling module, a
direct current signal conditioning module, a
voltage frequency conversion module, a switch quantity
signal conditioning module, a
signal processing module, a recording module and a high-speed
network communication module, etc. The method and the device have the advantages that: the use of the high-precision
time synchronization module and the high-performance
signal processing and the communication technologies can realize the synchronous collection of the three-state data of the electrical parameters, complete the functions of monitoring, fault recording,
phase angle measurement and
power quality analysis, etc., improve the
data processing capability and the sampling precision, improve the real-time property of an automatic
system of a substation, simplify the design, the manufacture and the operation of secondary equipment of the automatic
system of the substation and greatly reduce the construction cost and the maintenance cost of the substation.