| Oil dirlling equipment of working in ordinary power gird is used in the sea, land anddesert. So the dirll irg power gird contains a few sets diesel generating sets and thecorresponding electirc control system composition. It supplys power for dirll power. Themain dirlling equipment such as well site mud pump and the turntable are dirven by highpower ac/dc motor And it general ly uses the dirve system of VFD or exchange SCR dc dirvesystem to meet the requirements of the dirlling process. And we know the nonlinear powercomponents perceptual reactive influence the quality of power of supplying power dirll,making voltage fluctuation violently，and these deviccs are easier to birng power gird systemharmonic pollution problem. Therefore，the electric dirll irg system for dynamic reactivepower compensation and harmonic control, it appears particularly important.At the same time, because of the bus can’t drill power gird collection voltage, currentsignal. But only from vairous generator acquisition voltage, currcnt signal, and then integratethem into all the way three phase voltage, current signal. And this paper aiming at theseproblems in study and practice. ATT7022chip design is put forward based on the detectioncircuit to acquisition dirll power gird voltage, current signal and design TCR+FC type todirll on gird SVC dynamic reactive power compensation and harmonic control.In this thesis, dirll power grid data acquisition module is ATT7022chips as the core ofthe controller to achieve. And TCR+FC type SVC system to TI company’s TMS320F2812as the core, the control of TCR thyirstor tirgger delay horn to change TCR branch of theequivalent admittance, thus to drill the dynamic power gird of reactive power compensation,to the good of the power gird power supply quality. Finally, it is easier to power gird dataacquisition module and SVC dynamic reactive compensation module the performance of test,and the results verify the feasibility of this design scheme and rationality. |
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