Design of Signal Detection Circuit of Dual Power Switch

doi:10.16628/j.cnki.2095-8188.2020.03.007

Abstract

Abstract: The operation characteristics and power quality of the grid are affected by the properties of wind power generation such as fluctuation,intermittence,randomicity,and so on.As a guarantee of continuous power supply in power grid,dual power switch is widely used in various important load occasions.It is one of the primary tasks to complete the field parameters of power network signal and its detection.In view of the problem of power quality in the grid during the grid-connected operation of wind turbines,this paper designed the hardware and software respectively for the signal detection circuit of the double-power switch grid.The hardware design takes TMS320F28335 DSP as the core control module,and uses its internal analog/digital converter (ADC) and capture module (eCAP) to detect the voltage and frequency in the power grid.The network signal detection circuit has the advantages of high sampling accuracy,low hardware cost,simple detection algorithm and so on.

Key words: grid, power quality, dual power switch, power grid signal detection, digital signal processor (DSP)

CLC Number:

TM564

HUANG Yulong, LI Jing, TIAN Xinjiang. Design of Signal Detection Circuit of Dual Power Switch[J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 588(3): 43-49.

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