CN201018450Y - Variable frequency energy-saving controller for oil pump - Google Patents
Variable frequency energy-saving controller for oil pump Download PDFInfo
- Publication number
- CN201018450Y CN201018450Y CNU2007200491422U CN200720049142U CN201018450Y CN 201018450 Y CN201018450 Y CN 201018450Y CN U2007200491422 U CNU2007200491422 U CN U2007200491422U CN 200720049142 U CN200720049142 U CN 200720049142U CN 201018450 Y CN201018450 Y CN 201018450Y
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- output
- inductance
- input
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model relates to a variable frequency energy-saving control device for an oil pumping machine, which comprises an inverter, a motor, an input reactor, an input filter, a rectification circuit, an energy feedback device, a smoothing reactor, an output reactor and an output filter; wherein the input reactor, the input filter, the rectification circuit and the energy feedback device are orderly electrically connected with the input end of the inverter, the energy feedback device is electrically connected with the smoothing reactor, and the output reactor and the output filter are orderly electrically connected between the output end of the inverter and the motor; the energy feedback device is electrically connected with an AC electric network in order to feed the electric energy produced by the electricity generating state of the motor back to the AC electric network. The utility model provides an electric energy which is produced by the electricity generating state of the motor when effectively processing the down stroke of the oil pumping machine, and the electric energy is fed back to the AC electric network; the harmonic pollution problems of power electronic devices and other harmonic source are effectively restrained through the high and low pass filter, which improves the quality of the AC electric network and the system efficiency and increases the oil output in order to reach the purpose of that the variable frequency energy-saving control device for an oil pumping machine saves the energy and improves the power factor of the AC electric network.
Description
[technical field]
The utility model relates to the special-purpose energy-saving and frequency-variable technology in a kind of oil field, particularly relates to a kind of the energy-saving and frequency-variable control technology being used in energy-saving and frequency-variable control device in the oil-field oil pumper.
[background technology]
Frequency converter from the eighties in 20th century since China releases, in national economy and daily life, bringing into play the effect that becomes more and more important, be widely used in the industrial production and daily life of enterprise.The extensive utilization of frequency converter mainly has benefited from its good energy conservation characteristic and governor control characteristics.China's output value energy consumption is one of the highest in the world country.Solve the product energy consumption problem, except that other relevant technical problem need be improved, frequency control had become effective measures energy-conservation and that improve the quality of products.There is its unique background in the oil field as a special industry, based on blower fan, load of the pumps.And the oil field of China overwhelming majority is low energy, stripper field, unlike external oil field very strong blowing ability is arranged, most of oil will press oil to go into well by water filling, by oil pumper (machine of kowtowing) oil is elevated from the stratum, changing oil, change oil with electricity with water is the reality in present oil field, and the power consumption expense has accounted for sizable ratio in the cost of oil production of China.Saving power consumption is exactly the cost of winning that directly reduces oil.
At present, oil pumper is used the most general in oil production equipment, its operation principle is lifter motion up and down repeatedly, and upstroke is an oil pumping process, and decline stroke load alleviates, motor is because potential energy or inertia, its rotating speed can surpass synchronizing speed, and motor is in generating state, and the energy that motor drags generation can't be absorbed by load, the input of common frequency converter is a diode rectification, energy can not flow in the other direction, does not flow back to the passage of electrical network, must consume on the spot with resistance, and potential energy will impact electrical network with the form of regeneration back-emf in the reciprocal process, constitute in-fighting, pollute electrical network, be unfavorable for the use of electrical network, also waste in vain is a cost with many consuming electric powers.Not only power saving rate is low for this common frequency converter, may not offset the electric energy that the frequency converter brake unit consumes by the electric energy that the stroke of regulating oil pumper is saved, run in the opposite direction with energy-conservation target, and harmonic content height, pollute power grid quality, reduce the power factor of electric power system, do not reach effective power savings.
[utility model content]
The utility model is at the above-mentioned defective of prior art, the electric energy that the electric power generation state produced when a kind of effective processing oil pumper down stroke was provided, it is fed back in the AC network, and utilize high and low pass filter effectively to suppress the harmonic pollution problem of power electronic equipment and other harmonic source, improve AC network quality and system effectiveness, increase oil yield, reach oil pumper energy-saving and frequency-variable control device energy-conservation and raising AC network power factor.
In order to solve the problems of the technologies described above, the utility model comprises inverter, motor, input reactance device and filter, rectification circuit, energy back feed device and smoothing reactor and out put reactor and filter; Input reactance device and filter comprise input reactance device and input filter, and energy back feed device and smoothing reactor comprise energy back feed device and smoothing reactor, and out put reactor and filter comprise out put reactor and output filter; Input reactance device, input filter, rectification circuit, energy back feed device are connected electrically in the input of inverter successively, energy back feed device is electrically connected with smoothing reactor, is electrically connected with out put reactor and output filter successively between the output of inverter and motor; Energy back feed device is electrically connected with AC network, and the electric energy that the electric power generation state is produced feeds back in the AC network.
Also be provided with thunderbolt and earth leakage protective device before the above-mentioned input reactance device.
The output of above-mentioned inverter also is connected to line filter.
As a kind of preferred embodiment of the present utility model, also be connected to noise filter between output filter and motor.
The utility model is with respect to the beneficial effect of prior art: the electric energy that the electric power generation state produced when a kind of effective processing oil pumper down stroke was provided, it is fed back in the AC network, and utilize high and low pass filter effectively to suppress the harmonic pollution problem of power electronic equipment and other harmonic source, improve AC network quality and system effectiveness, increase oil yield, reach oil pumper energy-saving and frequency-variable control device energy-conservation and raising AC network power factor.
[description of drawings]
Fig. 1 is a square frame principle schematic diagram of the present utility model;
Fig. 2 is the circuit theory schematic diagram of a kind of preferred embodiment of the utility model;
Fig. 3 is the circuit theory schematic diagram of the another kind of preferred embodiment of the utility model;
Fig. 4 is the AC wave shape figure that does not use the utility model preceding;
Fig. 5 is the AC wave shape figure of the utility model output.
[embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the utility model comprises inverter 5, motor 8, input reactance device and filter 1, rectification circuit 2, energy back feed device and smoothing reactor 3 and out put reactor and filter 6; Input reactance device and filter 1 comprise input reactance device 11 and input filter 12, and energy back feed device and smoothing reactor 3 comprise energy back feed device 31 and smoothing reactor 32, and out put reactor and filter 6 comprise out put reactor 61 and output filter 62; Input reactance device 11, input filter 12, rectification circuit 2, energy back feed device 31 are connected electrically in the input of inverter 5 successively, energy back feed device 31 is electrically connected with smoothing reactor 32, is electrically connected with out put reactor 61 and output filter 62 successively at the output and 8 in the motor of inverter 5; Energy back feed device is electrically connected with AC network, and the electric energy that motor 8 generating states are produced feeds back in the AC network.Inverter 5 is exactly a frequency converter, input reactance device 2 be input as AC network.
As shown in Figure 1, also be provided with thunderbolt and earth leakage protective device 9 before the above-mentioned input reactance device 11.Thunderbolt and earth leakage protective device 9 be input as AC network.Earth leakage protective device in thunderbolt and the earth leakage protective device 9 plays earth leakage protective effect, reduces the misoperation of system; Lightning guard in thunderbolt and the earth leakage protective device 9 is used to reduce the lightning impulse protection system and normally moves.
As shown in Figure 1, the output of above-mentioned inverter 5 also is connected to line filter 10.
As a kind of preferred embodiment of the present utility model, as shown in Figure 2, input reactance device and filter 1 comprise 12 capacitor C 1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, three resistance R 1, R2, R3, three not inductance L 1, L2, L3 and three inductance L A, LB, LC that have iron core of ribbon core; The input of three inductance L A, LB, LC is respectively the three-phase output of AC network, and it is output as rectification circuit 2 inputs; Inductance L 1 with after capacitor C 2 is connected again with capacitor C 1 parallel connection, one terminates at one of AC network and exports mutually, inductance L 2 with after capacitor C 4 is connected again with capacitor C 3 parallel connections, one terminate at AC network another export mutually, inductance L 3 with after capacitor C 6 is connected again with capacitor C 5 parallel connections, one terminates in the third phase output of AC network, and their other end is connected together; Resistance R 1 with after capacitor C 8 is connected again with capacitor C 7 parallel connections, one terminates in the output of inductance L A, resistance R 2 with after capacitor C 10 is connected again with capacitor C 9 parallel connections, one terminates in the output of inductance L B, resistance R 3 with after capacitor C 12 is connected again with capacitor C 11 parallel connections, one terminates in the output of inductance L C, and their other end and six capacitor C 1, C2, C3, C4, C5, C6 are connected together;
As shown in Figure 2, rectification circuit 2 adopts six diode D1, D2, D3, D4, D5, D6 to constitute rectification circuit; Its input is respectively the output of three inductance L A, LB, LC, and it is output as the input of smoothing reactor 32;
As shown in Figure 2, smoothing reactor 32 comprises that two have inductance L p1, the Lp2 of iron core, two capacitor C 13, C14 and storage capacitor Cp, capacitor C 13 is connected in parallel on the input of two inductance L p1, Lp2, capacitor C 14 is connected in parallel on the output of two inductance L p1, Lp2, storage capacitor Cp is connected on the tap terminals of two inductance L p1, Lp2, the output that is input as rectification circuit 2 of two inductance L p1, Lp2, it is output as the input of energy back feed device 31; Energy back feed device 31 comprises six thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6 and transformer T, six described thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6 constitute the source inventer circuit, transformer T is the booster voltage device, the output that is input as two inductance L p1, Lp2 of six thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6, it is exported to transformer T input is provided, and the output of transformer T is electrically connected with AC network;
As shown in Figure 2, inverter 5 comprises six pair transistor Q7, Q8, Q9, Q10, Q11, Q12, and the input of six pair transistor Q7, Q8, Q9, Q10, Q11, Q12 connects the two ends of storage capacitor Cp, and it is output as the input of out put reactor and filter 6;
As shown in Figure 2, out put reactor and filter 6 comprise three not inductance L 4, L5, L6, six capacitor C 18, C19, C20, C21, C22, the C23 of ribbon core and three resistance R 7, R8, R9; The output that is input as inverter 5 of three inductance L 4, L5, L6, it is exported to motor 8 input is provided; Three capacitor C 19, C21, C23 one terminate at together, and its other end is connected on the output of three inductance L 4, L5, L6 respectively; Another pin of resistance R 7 is connected with capacitor C 18, resistance R 8 is connected with capacitor C 20, resistance R 9 is connected with capacitor C 22 back capacitor C 18, C20, C22 is connected on the output of three inductance L 4, L5, L6 respectively, and another pin of three resistance R 7, R8, R9 is connected together.
As shown in Figure 2, six thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6 constitute the source inventer circuit, because two have the inductance L p1 of iron core, the effect of Lp2 afterflow, regenerated energy just flow back into AC network by six thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6 behind booster voltage device T; Transformer T is the booster voltage device, and waveform and power factor all can be improved, and can also cut off the dc loop-current that upper and lower bridge arm produces.
As a kind of preferred embodiment of the present utility model, as shown in Figure 3, input reactance device and filter 1 comprise 12 capacitor C 1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, three resistance R 1, R2, R3, three not inductance L 1, L2, L3 and three inductance L A, LB, LC that have iron core of ribbon core; The input of three inductance L A, LB, LC is respectively the three-phase output of AC network, and it is output as rectification circuit 2 inputs; Inductance L 1 with after capacitor C 2 is connected again with capacitor C 1 parallel connection, one terminates at one of AC network and exports mutually, inductance L 2 with after capacitor C 4 is connected again with capacitor C 3 parallel connections, one terminate at AC network another export mutually, inductance L 3 with after capacitor C 6 is connected again with capacitor C 5 parallel connections, one terminates in the third phase output of AC network, and their other end is connected together; Resistance R 1 with after capacitor C 8 is connected again with capacitor C 7 parallel connections, one terminates in the output of inductance L A, resistance R 2 with after capacitor C 10 is connected again with capacitor C 9 parallel connections, one terminates in the output of inductance L B, resistance R 3 with after capacitor C 12 is connected again with capacitor C 11 parallel connections, one terminates in the output of inductance L C, and their other end and six capacitor C 1, C2, C3, C4, C5, C6 are connected together;
As shown in Figure 3, rectification circuit 2 adopts six pair transistor Q1, Q2, Q3, Q4, Q5, Q6 to constitute rectification circuit; Its input is respectively the output of three inductance L A, LB, LC, and it is output as the input of energy back feed device and smoothing reactor 3;
As shown in Figure 3, energy back feed device and smoothing reactor 3 comprise two the inductance L p1, the Lp2 that have an iron core, five capacitor C 13, C14, C15, C16, C17 and three resistance R 4, R5, R6, and three capacitor C 14, C15, C16 are storage capacitor; Capacitor C 13 is connected in parallel on the input of two inductance L p1, Lp2, and capacitor C 17 is connected in parallel on the output of two inductance L p1, Lp2; Be connected on the tap terminals of two inductance L p1, Lp2 after connecting again after capacitor C 14 and resistance R 4 parallel connections, capacitor C 15 and resistance R 5 parallel connections, capacitor C 16 and resistance R 6 parallel connections, the output that is input as rectification circuit 2 of two inductance L p1, Lp2, it is output as the input of inverter 5;
As shown in Figure 3, inverter 5 comprises six pair transistor Q7, Q8, Q9, Q10, Q11, Q12, the input of six pair transistor Q7, Q8, Q9, Q10, Q11, Q12 connects the output of two inductance L p1, Lp2, and it is output as the input of out put reactor and filter 6;
As shown in Figure 3, out put reactor and filter 6 comprise three not inductance L 4, L5, L6, six capacitor C 18, C19, C20, C21, C22, the C23 of ribbon core and three resistance R 7, R8, R9; The output that is input as inverter 5 of three inductance L 4, L5, L6, it is exported to motor 8 input is provided; Three capacitor C 19, C21, C23 one terminate at together, and its other end is connected on the output of three inductance L 4, L5, L6 respectively; Another pin of resistance R 7 is connected with capacitor C 18, resistance R 8 is connected with capacitor C 20, resistance R 9 is connected with capacitor C 22 back capacitor C 18, C20, C22 is connected on the output of three inductance L 4, L5, L6 respectively, and another pin of three resistance R 7, R8, R9 is connected together.
As shown in Figure 3, diode among six pair transistor Q7, the Q8 of the regenerated energy that motor 8 produces by inverter 5, Q9, Q10, Q11, the Q12 feeds back to dc bus, the voltage of storage capacitor C14, C15, C16 surpasses certain value on dc bus, the control section of six pair transistor Q1, Q2, Q3, Q4, Q5, Q6 starts in the rectification circuit 2, dc inversion is become to exchange, by control inverter voltage phase place and amplitude energy is fed back to AC network, reach energy-conservation effect.
As a kind of preferred embodiment of the present utility model, as shown in Figure 1,8 in output filter 62 and motor also are connected to noise filter 7, can reduce the interference that harmonic pollution causes.
Below operation principle of the present utility model is done simple description:
As shown in Figure 1 and Figure 2: oil pumper (not marking) is when being operated in upstroke, machine operation is at motoring condition, AC power enters rectification circuit 2 input R, S, T through input reactance device and filter 1, rectification is output as and is direct current, flow into inverter 5 by smoothing reactor 32 then, by out put reactor and filter 6, drive motors 8 operations are done work once more.Earth leakage protective device in thunderbolt and the earth leakage protective device 9 plays earth leakage protective effect, reduces the misoperation of system; Lightning guard in thunderbolt and the earth leakage protective device 9 is used to reduce the lightning impulse protection system and normally moves.Input reactance device and filter 1 comprise input reactance device, input filter, radiation filter, be used to suppress the high order harmonic component of input current, suppress extraneous radio interference, absorb higher harmonic components with emittance, reduce the impact of power surge to inverter 5, improve the disequilibrium of three phase mains, improve the power factor of input power supply.Rectification circuit 2 is a direct voltage with the AC rectification of cleaning.Smoothing reactor 32 also is direct current reactor, is used to reduce the high order harmonic component composition of direct current, improves the power factor of input power supply.Inverter 5 is used for direct voltage is reverse into motor 8 needed alternating voltages.Out put reactor and filter 6 comprise out put reactor, output filter, be used to suppress the high order harmonic component of output current, suppress extraneous radio interference, absorb higher harmonic components with emittance, reduce the surge voltage of inverter 5 outputs, improve the power factor of out-put supply, reduce the additional torque that motor 8 is caused by the high-frequency harmonic electric current; Because line filter 10 is connected on inverter 5 control loop sides, form simultaneously, have good common mode and differential mode interference and suppress ability, reduce the higher harmonic current of frequency by the impedance that increases circuit by inductance coil; When needs use external control terminal control inverter 5, if the control loop cable is longer, the interference of external environment condition might be invaded from the control loop cable, causes inverter 5 misoperations, be connected on line filter 10 on the control loop cable this moment, can eliminate interference.When oil pumper is operated in down stroke, motor 8 is because potential energy or inertia, the regenerative braking operating state can appear being in motor 8, it is generating state, regenerated energy by with six pair transistor Q7 of inverter 5, Q8, Q9, Q10, Q11, the rectified action of fly-wheel diode in parallel among the Q12, feed back on the dc bus, the regenerated energy that feeds back to dc bus charges to the storage capacitor Cp of electricity-saving control device, by on dc bus, increasing the storage capacitor Cp of particular design, regenerated energy is stored, energy stored is become and the AC network same frequency by energy back feed device 31 and transformer T, voltage, the alternating current of phase place feeds back in the AC network.Energy back feed device 31 adopts six thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6 to constitute the source inventer circuit, because two have the inductance L p1 of iron core, the effect of Lp2 afterflow, regenerated energy just flow back into AC network by six thyristor SCR1, SCR2, SCR3, SCR4, SCR5, SCR6 behind booster voltage device T.Transformer T is the booster voltage device, and waveform and power factor all can be improved, and can also cut off the dc loop-current that upper and lower bridge arm produces.
As Fig. 1, shown in Figure 3: oil pumper (not marking) is when being operated in upstroke, motor 8 is operated in motoring condition, and six pair transistor Q1, Q2, Q3, Q4, Q5, Q6 of rectification circuit 2 produce the turning on and off of six pair transistor Q1, Q2, Q3, Q4, Q5, Q6 of the pwm pulse control rectification side of six road high frequencies.Six pair transistor Q1, Q2, Q3, Q4, turning on and off with input reactance device and filter 1 acting in conjunction of Q5, Q6 have produced the sinusoidal current waveform consistent with input voltage phase, this moment energy from electrical network via rectification circuit 2 and inverter 5 through out put reactor and filter 6 flow direction motors 8, inverter 5 is operated in first, third quadrant.Oil pumper (not marking) is when being operated in down stroke, motor 8 is because potential energy or inertia, the regenerative braking operating state can appear being in motor 8, it is generating state, the regenerated energy that motor 8 produces is by six pair transistor Q7 of inverter 5, Q8, Q9, Q10, Q11, diode among the Q12 feeds back to dc bus, storage capacitor C14 on dc bus, C15, the voltage of C16 surpasses certain value, six pair transistor Q1 in the rectification circuit 2, Q2, Q3, Q4, Q5, the control section of Q6 starts, dc inversion is become to exchange, by control inverter voltage phase place and amplitude energy is fed back to AC network, reach energy-conservation effect.This moment energy by motor 8 by inversion side, rectification effluent to AC network.Inverter 5 is operated in two, four-quadrant, and the major function of input reactance device and filter 1 is a current filtering.
As Fig. 4, shown in Figure 5: Fig. 4 is the AC wave shape figure that does not use the utility model preceding, harmonic components is very big, the harmonic current that the harmonic current of not tape input reactor and filter, out put reactor and filter, smoothing reactor etc. produces apparently higher than tape input reactor and filter 1, out put reactor and filter 6, smoothing reactor 32 etc.Fig. 5 is the AC wave shape figure of the utility model output, has reduced harmonic components, and the input and output electric current all is sinusoidal wave, and input power factor is controlled, and can both make power factor during the band any load is 1, can obtain any up and down controlled output frequency of power frequency.The input reactance device that inverter 5 is built-in and filter 1, out put reactor and filter 6, smoothing reactor 32 etc. have the effect of good restraining harmonic wave, can protect rectifier bridge not to be subjected to the influence of supply voltage moment sharp wave simultaneously; In order to reduce the interference that harmonic pollution causes, noise filter 7 has been installed at the output loop of inverter 5.
In a word, adopt the application of the utility model in oil-field oil pumper, the power output and the workload demand that guarantee motor 8 accurately mate, can satisfy the speed governing requirement of various potential loads, can reduce the leakage factor of oil in lifting, improve the crude output in the unit interval effectively, the consumption that also can save electric energy simultaneously by dynamic speed adjustment greatly.Improve the power factor of operational outfit, reduce the starting current of motor 8, reduce impulse current to the destruction of motor 8 insulation, reduce motor 8 operating temperatures, reduce motor 8 maintenance, increase the service life, safely and effectively the regenerated energy of motor 8 is converted into electric energy and sends AC network back to, reach purpose of energy saving to greatest extent, moreover, it also can reduce the harmonic pollution of power supply, lift from crude output and efficiency of motor in the unit interval effectively, economize on electricity, energy-conservation makes frequency control become a kind of real " green " frequency converter (inverter).
The above only is preferred embodiment of the present utility model, and all equalizations of being done with the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (6)
1. oil pumper energy-saving and frequency-variable control device, comprise inverter (5) and motor (8), it is characterized in that: also comprise input reactance device and filter (1), rectification circuit (2), energy back feed device and smoothing reactor (3) and out put reactor and filter (6); Described input reactance device and filter (1) comprise input reactance device (11) and input filter (12), described energy back feed device and smoothing reactor (3) comprise energy back feed device (31) and smoothing reactor (32), and described out put reactor and filter (6) comprise out put reactor (61) and output filter (62); Described input reactance device (11), described input filter (12), described rectification circuit (2), described energy back feed device (31) are connected electrically in the input of described inverter (5) successively, described energy back feed device (31) is electrically connected with described smoothing reactor (32), is electrically connected with described out put reactor (61) and described output filter (62) successively between the output of described inverter (5) and described motor (8); Described energy back feed device is electrically connected with AC network, and the electric energy that described motor (8) generating state is produced feeds back in the described AC network.
2. oil pumper energy-saving and frequency-variable control device according to claim 1 is characterized in that: preceding thunderbolt and the earth leakage protective device (9) of also being provided with of described input reactance device (11).
3. oil pumper energy-saving and frequency-variable control device according to claim 1 is characterized in that: the output of described inverter (5) also is connected to line filter (10).
4. oil pumper energy-saving and frequency-variable control device according to claim 1 is characterized in that: described input reactance device and filter (1) comprise 12 electric capacity (C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12), three resistance (R1, R2, R3), three the not inductance of ribbon core (L1, L2, L3) and three inductance (LA, LB, LC) that have iron core; The input of three described inductance (LA, LB, LC) is respectively the three-phase output of described AC network, and it is output as described rectification circuit (2) input; Described inductance (L1) with after described electric capacity (C2) is connected again with described electric capacity (C1) parallel connection, one terminates at one of described AC network and exports mutually, described inductance (L2) with after described electric capacity (C4) is connected again with described electric capacity (C3) parallel connection, one terminate at described AC network another export mutually, described inductance (L3) with after described electric capacity (C6) is connected again with described electric capacity (C5) parallel connection, one terminates in the third phase output of described AC network, and their other end is connected together; Described resistance (R1) with after described electric capacity (C8) is connected again with described electric capacity (C7) parallel connection, one terminates in the output of described inductance (LA), described resistance (R2) with after described electric capacity (C10) is connected again with described electric capacity (C9) parallel connection, one terminates in the output of described inductance (LB), described resistance (R3) with after described electric capacity (C12) is connected again with described electric capacity (C11) parallel connection, one terminates in the output of described inductance (LC), and their other end and six described electric capacity (C1, C2, C 3, C4, C5, C6) are connected together;
Described rectification circuit (2) adopts six diodes (D1, D2, D3, D4, D5, D6) to constitute rectification circuit; Its input is respectively the output of three described inductance (LA, LB, LC), and it is output as the input of described smoothing reactor (32);
Described smoothing reactor (32) comprises two inductance (Lp1, Lp2), two electric capacity (C13, C14) and the storage capacitors (Cp) that have iron core, described electric capacity (C13) is connected in parallel on the input of two described inductance (Lp1, Lp2), described electric capacity (C14) is connected in parallel on the output of two described inductance (Lp1, Lp2), described storage capacitor (Cp) is connected on the tap terminals of two described inductance (Lp1, Lp2), the output that is input as described rectification circuit (2) of two described inductance (Lp1, Lp2), it is output as the input of described energy back feed device (31); Described energy back feed device (31) comprises six thyristors (SCR1, SCR2, SCR3, SCR4, SCR5, SCR6) and transformer (T), six described thyristors (SCR1, SCR2, SCR3, SCR4, SCR5, SCR6) constitute the source inventer circuit, described transformer (T) is the booster voltage device, the output that is input as two inductance (Lp1, Lp2) of six described thyristors (SCR1, SCR2, SCR3, SCR4, SCR5, SCR6), it is exported to described transformer (T) input is provided, and the output of described transformer (T) is electrically connected with described AC network;
Described inverter (5) comprises six pair transistors (Q7, Q8, Q9, Q10, Q11, Q12), the input of six described pair transistors (Q7, Q8, Q9, Q10, Q11, Q12) connects the two ends of described storage capacitor (Cp), and it is output as the input of described out put reactor and filter (6);
Described out put reactor and filter (6) comprise three the not inductance of ribbon core (L4, L5, L6), six electric capacity (C18, C19, C20, C21, C22, C23) and three resistance (R7, R8, R9); The output that is input as described inverter (5) of three described inductance (L4, L5, L6), it is exported to described motor (8) input is provided; Three described electric capacity (C19, C21, C23) one terminate at together, and its other end is connected on the output of three described inductance (L4, L5, L6) respectively; Another pin of described electric capacity (C18, C20, C22) was connected on the output of three described inductance (L4, L5, L6) respectively after described resistance (R7) was connected with described electric capacity (C18), described resistance (R8) is connected with described electric capacity (C20), described resistance (R9) is connected with described electric capacity (C22), and another pin of three described resistance (R7, R8, R9) is connected together.
5. oil pumper energy-saving and frequency-variable control device according to claim 1 is characterized in that: described input reactance device and filter (1) comprise 12 electric capacity (C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12), three resistance (R1, R2, R3), three the not inductance of ribbon core (L1, L2, L3) and three inductance (LA, LB, LC) that have iron core; The input of three described inductance (LA, LB, LC) is respectively the three-phase output of described AC network, and it is output as described rectification circuit (2) input; Described inductance (L1) with after described electric capacity (C2) is connected again with described electric capacity (C1) parallel connection, one terminates at one of described AC network and exports mutually, described inductance (L2) with after described electric capacity (C4) is connected again with described electric capacity (C3) parallel connection, one terminate at described AC network another export mutually, described inductance (L3) with after described electric capacity (C6) is connected again with described electric capacity (C5) parallel connection, one terminates in the third phase output of described AC network, and their other end is connected together; Described resistance (R1) with after described electric capacity (C8) is connected again with described electric capacity (C7) parallel connection, one terminates in the output of described inductance (LA), described resistance (R2) with after described electric capacity (C10) is connected again with described electric capacity (C9) parallel connection, one terminates in the output of described inductance (LB), described resistance (R3) with after described electric capacity (C12) is connected again with described electric capacity (C11) parallel connection, one terminates in the output of described inductance (LC), and their other end and six described electric capacity (C1, C2, C 3, C4, C5, C6) are connected together;
Described rectification circuit (2) adopts six pair transistors (Q1, Q2, Q3, Q4, Q5, Q6) to constitute rectification circuit; Its input is respectively the output of three described inductance (LA, LB, LC), and it is output as the input of described energy back feed device and smoothing reactor (3);
Described energy back feed device and smoothing reactor (3) comprise two inductance (Lp1, Lp2), five electric capacity (C13, C14, C15, C16, C17) and three resistance (R4, R5, R6) that have iron core, and described electric capacity (C14, C15, C16) is storage capacitor; Described electric capacity (C13) is connected in parallel on the input of two inductance (Lp1, Lp2), and described electric capacity (C17) is connected in parallel on the output of two described inductance (Lp1, Lp2); Described electric capacity (C14) and described resistance (R4) are in parallel, be connected on the tap terminals of two described inductance (Lp1, Lp2) after connecting after described electric capacity (C15) and described resistance (R5) parallel connection, described electric capacity (C16) and described resistance (R6) parallel connection again, the output that is input as described rectification circuit (2) of two described inductance (Lp1, Lp2), it is output as the input of described inverter (5);
Described inverter (5) comprises six pair transistors (Q7, Q8, Q9, Q10, Q11, Q12), the input of six described pair transistors (Q7, Q8, Q9, Q1 0, Q11, Q12) connects the output of two described inductance (Lp1, Lp2), and it is output as the input of described out put reactor and filter (6);
Described out put reactor and filter (6) comprise three the not inductance of ribbon core (L4, L5, L6), six electric capacity (C18, C19, C20, C21, C22, C23) and three resistance (R7, R8, R9); The output that is input as described inverter (5) of three described inductance (L4, L5, L6), it is exported to described motor (8) input is provided; Three described electric capacity (C19, C21, C23) one terminate at together, and its other end is connected on the output of three described inductance (L4, L5, L6) respectively; Another pin of described electric capacity (C18, C20, C22) was connected on the output of three described inductance (L4, L5, L6) respectively after described resistance (R7) was connected with described electric capacity (C18), described resistance (R8) is connected with described electric capacity (C20), described resistance (R9) is connected with described electric capacity (C22), and another pin of three described resistance (R7, R8, R9) is connected together.
6. according to each described energy-saving and frequency-variable controller harmonic suppression apparatus of claim 1 to 5, it is characterized in that: also be connected to noise filter (7) between described output filter (62) and described motor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200491422U CN201018450Y (en) | 2007-03-09 | 2007-03-09 | Variable frequency energy-saving controller for oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200491422U CN201018450Y (en) | 2007-03-09 | 2007-03-09 | Variable frequency energy-saving controller for oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018450Y true CN201018450Y (en) | 2008-02-06 |
Family
ID=39058949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200491422U Expired - Fee Related CN201018450Y (en) | 2007-03-09 | 2007-03-09 | Variable frequency energy-saving controller for oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018450Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860316A (en) * | 2010-05-26 | 2010-10-13 | 天津市华萌科技有限公司 | Self-adaptive load following control technical system |
| CN102278094A (en) * | 2011-07-02 | 2011-12-14 | 常州联科电气成套设备有限公司 | Energy-saving device for beam-pumping unit |
| CN102832879A (en) * | 2012-09-04 | 2012-12-19 | 大庆汇佳顺诚电子科技有限公司 | Anti-pilfering electricity parameter-adjusting energy-saving device special for oil pumping unit |
| CN103155402A (en) * | 2010-05-03 | 2013-06-12 | 德尔塔T公司 | A ceiling fan |
| CN103840721A (en) * | 2014-03-25 | 2014-06-04 | 哈尔滨中科盛普科技有限公司 | Oil-immersed screw pump servo driving system and driving method thereof |
| CN103997276A (en) * | 2009-12-18 | 2014-08-20 | 株式会社电装 | Drive device for electric power conversion circuit |
| CN104836510A (en) * | 2014-08-28 | 2015-08-12 | 珠海格林赛威科技有限公司 | Motor electricity-saving intelligent management control system |
| CN105356803A (en) * | 2015-10-27 | 2016-02-24 | 贵州大学 | Zero torque vector control method for motor of beam-pumping unit |
| CN105429179A (en) * | 2015-12-22 | 2016-03-23 | 山东华天电气有限公司 | Special filtering energy feedback apparatus and control method for pumping unit |
| CN110223978A (en) * | 2019-05-31 | 2019-09-10 | 四川大学 | A kind of microwave rectification chip based on GaAs |
| CN110474346A (en) * | 2019-06-24 | 2019-11-19 | 无锡旭菱电子科技有限公司 | A kind of pumping unit electric energy compensation device and method |
| CN110855217A (en) * | 2018-08-01 | 2020-02-28 | 联合汽车电子有限公司 | Motor control circuit of gearbox controller and optimization method thereof |
| CN112468023A (en) * | 2020-12-09 | 2021-03-09 | 华中科技大学 | Leakage current suppression method for multi-motor driving system |
-
2007
- 2007-03-09 CN CNU2007200491422U patent/CN201018450Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997276B (en) * | 2009-12-18 | 2018-03-27 | 株式会社电装 | Driving element for electric power converting circuit |
| CN103997276A (en) * | 2009-12-18 | 2014-08-20 | 株式会社电装 | Drive device for electric power conversion circuit |
| CN103155402A (en) * | 2010-05-03 | 2013-06-12 | 德尔塔T公司 | A ceiling fan |
| CN101860316A (en) * | 2010-05-26 | 2010-10-13 | 天津市华萌科技有限公司 | Self-adaptive load following control technical system |
| CN102278094A (en) * | 2011-07-02 | 2011-12-14 | 常州联科电气成套设备有限公司 | Energy-saving device for beam-pumping unit |
| CN102832879A (en) * | 2012-09-04 | 2012-12-19 | 大庆汇佳顺诚电子科技有限公司 | Anti-pilfering electricity parameter-adjusting energy-saving device special for oil pumping unit |
| CN103840721A (en) * | 2014-03-25 | 2014-06-04 | 哈尔滨中科盛普科技有限公司 | Oil-immersed screw pump servo driving system and driving method thereof |
| CN104836510A (en) * | 2014-08-28 | 2015-08-12 | 珠海格林赛威科技有限公司 | Motor electricity-saving intelligent management control system |
| CN105356803A (en) * | 2015-10-27 | 2016-02-24 | 贵州大学 | Zero torque vector control method for motor of beam-pumping unit |
| CN105429179A (en) * | 2015-12-22 | 2016-03-23 | 山东华天电气有限公司 | Special filtering energy feedback apparatus and control method for pumping unit |
| CN105429179B (en) * | 2015-12-22 | 2018-07-20 | 山东华天电气有限公司 | The special filtering of pumping unit can present device and control method |
| CN110855217A (en) * | 2018-08-01 | 2020-02-28 | 联合汽车电子有限公司 | Motor control circuit of gearbox controller and optimization method thereof |
| CN110223978A (en) * | 2019-05-31 | 2019-09-10 | 四川大学 | A kind of microwave rectification chip based on GaAs |
| CN110223978B (en) * | 2019-05-31 | 2021-04-20 | 四川大学 | Microwave rectification chip based on gallium arsenide |
| CN110474346A (en) * | 2019-06-24 | 2019-11-19 | 无锡旭菱电子科技有限公司 | A kind of pumping unit electric energy compensation device and method |
| CN110474346B (en) * | 2019-06-24 | 2021-11-23 | 无锡旭菱电子科技有限公司 | Electric energy compensation device and method for oil pumping unit |
| CN112468023A (en) * | 2020-12-09 | 2021-03-09 | 华中科技大学 | Leakage current suppression method for multi-motor driving system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201018450Y (en) | Variable frequency energy-saving controller for oil pump | |
| CN101615884A (en) | The cascade speed regulator with high power factor of phase-shifting chopped waves | |
| CN210745048U (en) | 3300V oil gas field fracturing frequency conversion speed control system | |
| CN104242738B (en) | Frequency conversion and energy saving control device and method for cluster well pumping units | |
| CN105186961A (en) | Motor driving system used for workover treatment | |
| CN204216804U (en) | The distributed collecting and distributing frequency conversion control energy saving apparatus of cluster well oil extractor | |
| CN201130923Y (en) | Frequency speed control system | |
| CN203119770U (en) | Multi-motor-driving frequency-converting and energy-saving device based on common DC bus and pumping unit | |
| CN201113907Y (en) | Hoisting machine variable-frequency speed-regulating device | |
| CN203826986U (en) | LC filtering elevator energy feedback circuit | |
| CN205039734U (en) | A electromotor drive system for workover | |
| CN1508962A (en) | Power control device for lifting equipment | |
| CN201041997Y (en) | Middle voltage frequency conversion speed-adjustable device for wind blower and water pump | |
| CN202888863U (en) | Grid electricity petroleum drilling machine based on active front-end rectified feedback | |
| CN203119838U (en) | High-performance four-quadrant frequency converter | |
| CN203237963U (en) | Electric hoist adopting frequency conversion technology and capable of being used in single-phase power source | |
| CN202059184U (en) | Elevator electric energy feedback device | |
| CN203883683U (en) | Frequency conversion device provided with PLC controller | |
| CN2701167Y (en) | A middle-voltage variable-frequency control arrangement for implementing four-quadrant running | |
| CN210807129U (en) | Rectifier and low-voltage inverter array power supply system | |
| CN109842286A (en) | A kind of pfc circuit | |
| CN204720986U (en) | The compound circuit of a kind of integrated rectification, active power filtering and energy back braking function | |
| CN2567865Y (en) | DC bus structure type high-tension high-low-high high-tension frequency control of motor speed device | |
| CN209184236U (en) | A kind of middle voltage electromotor end voltage peak absorbing device | |
| CN206705540U (en) | A kind of crane control system and crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20130309 |