晶闸管构成的直流斩波调速系统 英文文献

The brilliant floodgate managing cuts the wave adjust soonsystem of applied principleThe brilliant floodgate managing cut the wave to adjust from the direct current that the constitute soon the system main back track adoption cathode pulse back track, two sets of three control the bridge type to commutate to equip mutually and all anti- merge to link to the electric motor power supply, the electric motor cans be quickly positive and turns over in circulate process.Two sets of works adoption logics that commutate the device have no circulation control.Control the system adoption turns to shut the wreath to adjust with the electric current double soon soon system, turn soon the modulator and the electric current modulators all adopt the comparison integral calculus control.Passed the design to is constitute by the tube of The brilliant floodgate managing of the direct current cut first the wave adjust soon the system to analyze how from produce the parameter calculation and choices that the machine craft requests the certain electric power to drag along to move to automate the project, main back track component, control the design of the unit parts of the system and adjust to try and work the parameter measurement of the principle, system and the analysis of the quiet dynamic state characteristics and adjust, and drag along to move to the electric power the interference in the automation made some analysis to put forward at the same time some always interference of measure.The The brilliant floodgate managing tube direct current spreads to move the 70's in front and back in the our country expansion get strongly and applications, through the development history of more than 30 years, still stay around separately foundation of sign the machine piece up, the physical volume is big, connecting the line complications, use very inconvenient and the price is expensive.The double of my company development shuts the wreath direct current to adjust soon the mold piece, be in the light of to gather and use the convenient principle to adjustdirect current soon the system mold piece turn.The craft process of the forerunner and the electric circuit design of the high performances raised the service life and credibilities of the mold piece consumedly, and sex price compare very high, adjust for the direct current soon the realm increased the new vitality.Two, the electric circuit of an inner part constitutes this mold piece to contain the power The brilliant floodgate managing tube and move to control the electric circuit and turn mutually soon the electric current double shuts the wreath to adjust soon electric circuit, integral calculus electric circuit, electric current feedback electric circuit, and lack mutually and lead to flow to protect the electric circuit.The power The brilliant floodgate managing tube completes to change to flow and the power adjust, adopting to import the square chip, deluxe chip to prop up the plank, through special burn to knot the craft, assurance welding the layer have no empty, use DCB plank and other high classeses to transmit heat to insulate the material, transmit heat the function good, the plank of does not take the electricity, using the safe credibility.The hot circulation number of times exceeds the nation the standard is near 100 times, the service life that have to long very much.The integral calculus link can carry out the direct current electrical engineering soft start, and start time adjustable, reserve two ports for customer while design, regulate two electric potential machines, the convertibility integral calculus time length, thus attain to change the purpose that the electrical engineering starts time.The integral calculus link is applicable to start to transfer the steady situation of process, promoting the machine such as a machine of blast furnace, the mineral well, cold hot connect machine etc.When the importation jumps the signal for the rank, the line that passes to become to have the certain inclined rate to the definite integral machine transformation changes the exportation signal gradually, being the speed modulator of to settle the importation, for the speed of the electrical engineering for the stable exportation of the definite integral machine to give settle, give thedefinite integral machine output's variety the inclined rate is the acceleration of the electrical engineering.If the customer request to be under the condition of load certainly, the electrical engineering starts with biggest etc. acceleration, can throw away the integral calculus link, a the exportation limit that stays two ports of to be the electric current wreath and the speed wreath, regulate the exportation limit of the electric current wreath, change the electrical engineering biggest to start the electric current, acquire the ideal transition process.Turn soon the electric current double shuts the wreath electric circuit speed to regulate and the anti- load and the charged barbed wire net move, adopting a pair of PI modulator, can acquire to move the static state result goodly.Design the process adoption" two ranks are the best" parameter design method design, combine the system to move the static state result to choose the best parameter.From repress super the standpoint that adjust set out, the electric current wreath correct a system of typical model.System for make at the rank jumps the to move have no steady error margin of , and have to compare good of the anti-function, the speed wreath design becomes a system of typical model.Inside the comparison of the logarithms a of outside wreath characteristic, draw the electric current wreath and turn soon the wreath opens a characteristic of the wreath logarithms:Can see, the turn frequency and close the frequency to order 1 to compare a small, this is an inevitable regulation.A wreath system that design thus, the total wreath inside the ratio of outside wreath is slow.Generally speaking, adjust the process is a first outside wreath generally behind inside wreath, the electric current wreath wants to want to raise the dynamic state result of the system, the electric resistance that can enlarge the electric current wreath to permit to carry, but to let up the electric capacity, its relation is a C1*0.03/ R1.The speed wreath wants to want to raise the dynamic state result, getting from various index signs of a system of typical model, its dynamic state result is a parameter of middle, needing to adjust to tryagain and again, enlarge the electric resistance R2 and can raise the steady accuracy of the system, correspond of let up the electric resistance and can acquire the good dynamic state result, the concrete circumstance can request to regulate according to the system parameter of the customer, its relation is a C20..87/ R2( the electric current is super to adjust the quantity<=5), a design of mold process stays four ports of, the that is the speed wreath and the electric current wreaths permits to carry, the customer can regulate according to the actual circumstance.The electric current feedback adoption abroad imports the huoer to spread the feeling machine, apposition in an inner part of mold.Mainly complete the sampling of the electric current signal, have the very high line degree, simplify the outer circle machine piece of the system.Protect an internal constitution of the electric circuit mold leads to flow and lack to protect the electric circuit mutually, guarantee the safe movement of the electrical engineering, and stayed a port of to be to flow to protect to settle the signal importation, customer can according to oneself's equipments of over carry the ability to regulate, more outstanding this mold piece uses the vivid.The applied electric current of the mold piece turn soon the double shuts the wreath to adjust soon electric circuit, have because of it to adjust very and highly soon scope, good move the static state function and the anti- functions, at adjust soon the realm gets the extensive application.This mold piece dyes by applying to the deckle, pushing the and printing and other direct currents adjust soon realm, effective.Experiment the condition:The mold piece is a MSZ- ZLTS-400, direct current motive:Ued=220 Vs, Ied=41 As, Ned=1500 rs/ min, allowed to carry multiple is 1.5.Experiment result:The speed is super to adjust to measure the Vp<5%, the electric current is super to adjust to measure the Ip<0.5%, adjust time Ts<0.5 Ss, flap the number of times H<=2, turn soon the stability Vb<=0.02, turn soon the stability Vs<0.5%The direct current motive have good since, make to move the function, proper in smooth adjust within the scope of big soon, got the extensive application in many demands adjust soon and fastly positive and negatively to of electric power drag along move realm.Because openning the wreath system to adjust soon scope, quiet bad the rate can't satisfy to produce the actual demand, so we usher in to shut the wreath to adjust soon system.The feedback control regulation:1.Was adjust the quantity is quiet bad from quiet the characteristic analysis in can see, because of adopting the comparison enlarger, shutting the wreath system to open the wreath to enlarge the coefficient K value more big, the steady function of of the system is more good.However, Kp= constant, the steady is bad soon can let up only, but impossible cancellation. 2.Resist the move, obey to settle; the feedback control system has the good anti- function, it can repress availably the whole drive the front that negative feedback wreath surround to the of the passage the action use, but to to settle the variety of the function then blindlies follow.The move- in addition to give settle the signal, function in controling each link of system of the whole will cause to output the factor of measure the varieties to all be called" action use" feedback control system to move to all repress the function toward the 扰of the passage to the front surround by the feedback wreath.But, if measure on the feedback passage soon the feedback coefficient under the influence of a certainly but the occurrence variety, it can't get the feedback control system to repress not only, on the contrary will enlarge to be adjust the error margin of the quantity.Therefore, what the feedback control system can repress is just a front surround by the feedback wreath to move toward the of the passage.3. The accuracy of the system depend on in give and settle accuracy- because of give settle decide system exportation, output the accuracy nature to be decided by to settle accuracy.If produce to settle the power supply occurrence motion of the electric voltage, feedback control the system can't discriminate is to giveand settle the electric voltage motion that electric voltage regulate normally and still shouldn't have.Therefore, high accuracy soon the system must have the higher accuracy of to settle steady press the power supply.The ex- section discussed the feedback the control shuts the steady function of of the wreath system and it analytical with design method, lead go into turn soon negative feedback, and enlarge the coefficient enough big, can satisfy the steady function request of the system.However, enlarge the coefficient too greatly again possible;Cause to shut the wreath system unsteady, should increase again the dynamic state to correct the measure at this time, then can guarantee normal work of the system.In addition, return the request of various dynamic state index signs that the beard satisfies the system.For this, must further analyze the dynamic state function of the system.The dynamic state correct- the design of the modulator of PI at design to shut the wreath to adjust soon system, usually will meet the circumstance of the dynamic state stability and the steady function index sign occurrence antinomy at this time, must design the fit dynamic state to correct the device, use to reform the system, make it satisfy the request of the dynamic state stability and the steady index sign both side at the same time.Correct after constitute of the from the PI modulator, can guarantee the steady accuracy of , but with exchange the system stability to the restrict of fast of;Adjust generally soon the system request to regard stable and steady accuracy of of dynamic state as principle, can differ to the request of fast some, so the main adoption PI modulatorTo the steady accuracy request very high, often need to enlarge the coefficient big, but may make system unsteady;After plusing to correct to equip, the system stabilized, may sacrifice the fast again;The exaltation close the frequency and can speed the system to respond to, leading into the high interference of 频easily again;Such etc..Design usually beardat steady, precise, quick and these four antinomies of the anti- interference of of the aspect obtain to compromise, then can acquire the more satisfied result.In actual system, the dynamic state stability not only must guarantee, and but also need to have the certain degree, in order to prevent the parameter variety and some influence that don't account into the factor.The system sets up the mold- should carry on the total design first, choose the basic parts, press the steady function index sign calculation parameter, become to shut the wreath control system basically, or call the original system.The system analysis- build up the dynamic state mathematics model of the original system, draw the virtuous diagram, stability and other dynamic state functionses that check it up.The system design- if the original system is unsteady, or the dynamic state function is not good, must install the fit dynamic state to correct the device, make system after correct overall to satisfy the function request.The comparison integral calculus control regulation and did not calm down to differ to adjust soon system originally the stanza will discuss, the adoption integral calculus( I) modulator or comparison integral calculus( PI) modulators replace the comparison enlarger, constitute to did not calm down to differ to adjust soon system.Such as front, adopt the P enlarger to control of is quiet adjust badly soon system, the Kp is more big, the system accuracy is more high;But the Kp lead greatly, will lower the system stability, make the system dynamic state unsteady.Have no quiet bad the direct current adjust soon system adoption the comparison integral calculus modulator has no with the realization quiet bad, adopt the electric current close negative feedback to limit the impact electric current of the dynamic state process.TA for exchanges that examines the electric current with each other the feeling machine, get the electric current feedback signal after commutate.When the electric current exceeds to close the electric current, high in steady press to takecare of the VST to broke through the electric voltage, make the crystal triode transistor VBT lead, then the exportation electric voltage of the modulator of PI near to in zero, the exportation electric voltage nasty play of the electric power electronics transformation machine UPE descend, attaining the purpose of limit the electric current.Have no quiet bad system of ideal quiet the characteristic is whole quiet the characteristic looks like to present the rectangle.Say strictly," have no quiet bad" is just theoretically of, actual system at steady , the PI modulator integral calculus electric capacity both ends electric voltage is constant, the feedback back track of the equal to operation enlarger open a new road, it enlarges the coefficient to be equal to the operation enlarger to open the wreath to enlarge the coefficient, the number is biggest, but is not infinity.So its importation carries to still exist pimping, not zero.This is to say, still ising actually pimping quiet bad, just at general the accuracy request under can neglect not to account just.The direct current cut a machine spreads the tiny machine control of move the system for reduce the electrical engineering transmission of pulsation, at lead to compare the a ≤ to adopt to settle 0.4:00 the adjusts the breadth control method( f=250 HZs) big in the an in 0.4:00 adopt to settle the breadth frequency modulation control method( the vein breadth Ton=1.6 mses) control electric circuit to request in the adequacy of time give main T1 and assist a pole of the T2 to trigger the pulse first, the creation of that pulse contain control of CTC, calculator according to give settle, the feedback signal and appointed index sign, continuous adjustment CTC certainly time constant, whenever the CTC delivers to break off the claim after timing is up certainly, triggering again the T1 and T2s after pulse power enlarge the electric circuit.The PIO B is placed in to control the work method, PB0- deliver pulse for T1.The PB1 opens for T2 hair pulse, the PB2 importation system/ shut the wreath order("1" is open the wreath,"0"are to shut the wreath) PB3importation start/ only usage passage of stop order("1" start,"0" stop) CTC"0" and"1" all for settle work way, allow the interruption, passage of CTC"0" of often count certainly to break time for the pass that cuts a machine, passage of CTC"1" of time constant for cut a machine to lead a time.The beginning of the procedure starts to turn to mainly include:The PIO B oscular beginning starts to turn, the constitution CTC of"0" break off the entrance address of the service procedure with"1" passages, settle a start signal that the adjusts the breadth control method, for guarantee the tube of The brilliant floodgate managing does not lose control, weave the distance wants to let CTC of passage"0" begin to work, be the passage"0" send out the interruption claim to start again the CTC passage behind"1" works, can guarantee to assist the T2 to lead first thus, the main T1 leads the procedure of behind, for make operate the speed quickly, regulated the calculate way to adopt" approach the method gradually", because this kind of calculate way operation speed is quick, can carry on the another work while wait for the CTC hair interruption signal, if show to the examination that system is a little bit some and datas.Break off will the service procedure start the PIO of B output the door of the 40 ses to control the signal, to insure the credibility of to trigger, want while weaving the distance at cut a machine to lead whether a stage search electric current feedback signal exceeded the limitative value of the electricity electric current or not, if the super limit of electric current then turns to go in to flow to protect the procedure( namely not trigger the main T1 is to cut a machine pass to break) to carry on again the main electric current that search wait for low in limit the value, the system just re- throws in the normal movement.Drive the electric circuit is the GTR key of the safe work, descending the diagram as saturated of anti- to drive the electric circuit that electric circuit adoption EXB357 to drive the slice very much, its basic function is:The importation can receive the TTL electricity even, inkeeping with calculator control, after the light electricity insulate enlarge the exportation through a triode transistor, because light electricity the matches the machine importation electric current as 2.6-9 MAs.Just is a 150 MAs toward the importation electric current, anti- to output the electric current as 600 Mas, so can't drive the big power transistor to design for this with it the as follows actual applied electric circuit, the experiment prove that that electric circuit can complete to drive the mission completely.End the language originally the system design become the form of the mold piece:Gather the degree is high, the physical volume is small, connecting the line convenience, regulate in brief, circulate the safety credibility, and have the in general use, namely a parameter of the same kind of mold homology, use very convenient.。