Title :
A multi-channel telemetry unit for monitoring distribution switching station
Author :
Tao, Weiqing ; Zhang, Qiaoyun ; Jin, Yefu ; Li, Lin
Author_Institution :
Sch. of Electr. Eng. & Autom., Hefei Univ. of Technol., Hefei, China
Abstract :
This paper describes a design of a multi-channel telemetry unit for monitoring distribution switching station based on TMS320F28016 DSP. It details the composition of the hardware block diagram and the design of software. It is capable of measuring multi-channel three-phase voltage and current. In the software, it adopts Fast Fourier Transform to compute multi-channel three-phase voltage, current, reactive and active power. It adopts analog mixed with digital methods to get an accurate zero-sequence current and improves the recognition accuracy of the single-phase grounding fault. At the same time, the system reliability is also improved. Besides, the communication approaches such as serial communication interface and eCAN bus between the telemetry unit and external terminal are also introduced.
Keywords :
computerised monitoring; controller area networks; earthing; fast Fourier transforms; power distribution reliability; power engineering computing; reactive power; switching substations; system buses; telemetry; TMS320F28016 DSP; accurate zero-sequence current; analog mixed digital methods; distribution switching station; eCAN bus; fast Fourier transform; hardware block diagram; monitoring; multichannel telemetry unit; multichannel three-phase current; multichannel three-phase voltage; reactive power; recognition accuracy; serial communication interface; single-phase grounding fault; software design; system reliability; Automation; Current measurement; Digital signal processing; Real time systems; Switches; Telemetry; Voltage measurement; TMS320F28016 DSP; distribution switching station; single-phase grounding fault; telemetry; three-phase current;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5553949
