| Nowadays world, economizing on energy the environmental protection has already become two greatest topics.Car's spreading most in the world is also the biggest pileup in dosage, but the car annoys to also more and more cause the value of people the tail of a great deal of crude oil of depletion and the emissions, energy crisis and air pollution have already become the two greatest problems that the Ji needs solution, inside the short period didn't°yet which pileup can replace the car current position, so how make the car as far as possible lowered oil to consume to annoy a processing technique to become a people urgent expectation with tail, mix a motive car to emerge with the tide of the times at this time.The expert estimates, the usage hybrid motive car, compared with the common car, at least can stanza oil 10% arrive 30%, it is thus clear that, usage and expansion mix a motive car technique to contain considerable very realistic meaning and relate to national policy people's livelihood.The hybrid motive car technique research of the our country starts a little bit late, but has already obtained much achievement, a lot of local colleges and research hospital all have certain development ability, our country of hybrid the motive car technique is flying soon development, the development of the vehicle-use motive electrical engineering system is hybrid the motive car motive system, power supply system and solution fuel pollution the technical key of problem etc..Usage Howl elaborated by this text spreads a feeling machine of vehicle-use always Ci synchronous electrical engineering control technique be aim at a hybrid motive car in the middle of the technique core of the Ci synchronous electric motor control always puts forward of a kind of new control method, the purpose raises always while lowering system cost the control accuracy of the Ci synchronous electrical engineering.This text elaborated always first the development condition of the Ci synchronous electrical engineering, always the mathematics model of the Ci synchronous electrical engineering and aim at always the Ci synchronous electrical engineering adopt of the vector control principle.Aim at an usage, Howl spreads a feeling machine of vehicle-use the Ci synchronous electrical engineering control always puts forward two kinds of new methods, the purpose raises always while lowering system cost the control accuracy of the Ci synchronous electrical engineering.Howl spread a feeling machine when magnetoelectricity luck always went, the electricity angle that can get 60 degrees resolution, but the accurate control of the Ci synchronous electrical engineering always needs to get continuous angle signal, therefore, directly using Howl to spread feeling machine as angle signal can satisfy always Ci to have no the control request of brushing the electrical engineering, satisfy not always the control of the Ci synchronous electrical engineering request. In order to carry out always the accurate control of the Ci synchronous electrical engineering, will raise system to electricity angle of resolution, now more universal method is to pass to revolve coder or revolve transformer to get electrical engineering of actual movement electricity the angle revolve by passing coder to get electrical engineering of actual movement electricity angle, the electrical engineering controller calculation physically gives or gets an electric shock angle the most convenient, and the adoption revolves transformer to also get and revolve the signal of coder homology through a hardware electric circuit.But revolve coder to adopt the spreading of optoelectronics form feeling machine, worse work environment of not that suitable car, and revolve the price of transformer and its hardware electric circuit also higher.The in short adoption revolves transformer to mix the motive car motive electrical engineering iner common use project now, the whole cost is about 3000 dollars renminbi.Howl spreads a feeling machine to install in the electrical engineering inner part, is influenced by the external world small, and more enduring, if make use of the software technique makes the thin request of synchronous electrical engineering for turn, attaining always Ci been very ideal.This text uses two kinds of methods:On being an usage to have no position to spread the anti- dynamoelectric type method of feeling machine, calculate at 60 electricity inside the angle of always turn sub- angle, at Howl signal arrival again take into to correct;Two is adopt a software lock mutually wreath of method, use Howl to spread a feeling machine of three believe number, with three believe the ascension of number's following and descending to follow is mutually a number lock wreath of the frequency signal of importation, the signal importation number lock mutually wreath, lock mutually the wreath adopts 6000% repeatedly can get one degree resolution, if adopt 12000% repeatedly, can get 0.5 degrees resolution.Make use of Howl to spread a feeling machine respectively again of three believe that the ascension of number follows signal opposite angles a degree exportation the signal carry on a school quasi-, is also say at interval of 60 degreeses carry on a school to the output's angle quasi-.We make use of the high speed operation of controller(DSP) ability and use Ci direct current always have never brushed Howl who use usually in the electrical engineering to spread a feeling machine, the adoption number method estimates the actual movement of an electrical engineering electricity angle.The contrast that passes to two results, the first method adoption of time is longer, but become more accurate to the control of electrical engineering, but software lock mutually wreath technique the amount of code is small, the meaning is clearer and if take into to go deep into to study, have much of development foreground.Aim at electrical engineering system, the function needs the demand that prognosticates for a long time and designed to take SD card as saving lie the signal of quality to save electric circuit.This text made detailed introduction to the SD card, and as to it's the hardware connected a people's electric circuit and document system to carry on detailed treatise and created a condition for the electrical engineering follow-up worked. |
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