Pingan Wu

TL;DR: In this paper, a system for measuring the voltage ratio of a transformer on the basis of a virtual instrument is described. But the instrument is provided inside with a polarity protection function to guarantee the safety of devices and people.

TL;DR: In this article, the authors proposed a utility model for a testing device of generator excited system based on virtual instrument technology, solving that problems that all the functions of prior measuring device are implemented with hardware or built-in software form, the data processing function is insufficient, the running speed and reliability are poor; moreover, the manufacturing technology of these instruments is complicated and the manufacturing cost is high and these instruments are imported mostly.

TL;DR: In this article, a system for testing automatically electric machine performances and a method for working, which are based on virtual instruments and characterized in that the invention is composed of a parameter presetting portion, data collecting portion, a data displaying portion of a microcomputer data managing module which contains testing software.

TL;DR: In this article, a communication system and a work method of an excitation controller of a generator on the basis of DSP is described, which is characterized in that the system is constituted by a signal pickup circuit, a PC workbench which is used for an upper computer, a generator excitation controllers which are used for a lower computer, an ethernet control chip, a level shift and logic circuit, and a spacing chip.