Ship power grid parameter real-time monitoring system and method
A real-time monitoring system and power grid parameter technology, applied in the power grid field, can solve the problems of inaccurate monitoring of ship power grid parameters, power quality pollution of power supply system, harmonic pollution of power quality of ship power grid, etc., to avoid sampling influence and reduce spectrum aliasing , The effect of filtering out high-frequency interference
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0024] The present invention provides a real-time monitoring system for ship power grid parameters, such as figure 1 As shown, it includes a signal conditioning unit, a data acquisition unit, a data processing unit, a communication interface circuit, an external extended memory, and a frequency detection module. The signal conditioning unit includes a resistor divider network, a current transformer, and a low-pass filter. The outputs of the resistor divider network and the current transformer are connected to the input of the data acquisition unit, and the low-pass filter is set between the resistor divider network and the data acquisition unit. Between the acquisition units or between the current transformer and the data acquisition unit, the outp...
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