CN114977199B - Distribution and transformation voltage quality control device suitable for photovoltaic access - Google Patents
Distribution and transformation voltage quality control device suitable for photovoltaic access Download PDFInfo
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- CN114977199B CN114977199B CN202210894339.5A CN202210894339A CN114977199B CN 114977199 B CN114977199 B CN 114977199B CN 202210894339 A CN202210894339 A CN 202210894339A CN 114977199 B CN114977199 B CN 114977199B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention relates to the technical field of voltage quality control, in particular to a distribution and transformation voltage quality control device suitable for photovoltaic access, which comprises a shell, wherein the distribution and transformation voltage quality control device comprises a voltage meter, a voltage meter and a control circuit, wherein the voltage meter is used for detecting the voltage fluctuation of the distribution and transformation voltage quality control device; the sliding resistor is arranged inside the shell; the output end of the pressure value control mechanism is connected with the sliding sheet of the sliding resistor; the movable pressure measuring mechanism is connected with the output end of the pressure value control mechanism; the input end of the movable pressure measuring mechanism faces the conducting strip; and a voltmeter; and boost control mechanism, boost control mechanism and wire connection have realized adjusting in real time and carrying out the purpose that steps up and voltage pertinence detected to voltage through this application to and accomplish the voltmeter and to break off after the instantaneous detection of voltage and be connected with the conducting strip.
Description
Technical Field
The invention relates to the technical field of voltage quality control, in particular to a distribution and transformation voltage quality control device suitable for photovoltaic access.
Background
The voltage quality refers to the deviation of the actual voltage from the rational voltage, so as to reflect whether the power distributed to the user by the power supply department is qualified. The method has the advantages of improving the voltage quality and the power supply reliability, starting from the aspects of balancing load, improving the power of power consumers, adjusting a tap switch of a transformer, performing reactive power optimization, adopting a voltage and reactive power automatic control system of a power distribution network and the like, promoting the technical upgrading, perfecting equipment and promoting human-oriented scientific management, which is the necessary way for the development of the power grid.
Chinese patent: CN202210239457.2 discloses can discontinuity access circuit measurement voltage's electric energy quality control ware, including main part subassembly and installation component, the left end of main part subassembly is connected with adjusting part, the installation component is located the top of main part subassembly, and the internally mounted of main part subassembly has a survey voltage subassembly, it includes battery, third wire, second heating resistor, overcoat, lift electrode, voltmeter and first terminal post to survey the voltage subassembly. The invention has the beneficial effects that: this can discontinuity insert electric energy quality control ware of circuit measurement voltage, can collide buffering and automatic re-setting, this equipment is convenient for install and fix additional equipment, this equipment can be when the voltage reinforcing automatically regulated share the resistance of resistance, thereby reduce electric energy quality control ware's voltage increase, reduce the damage of equipment, this equipment can discontinuity measurement voltage, increase the life of voltmeter, this equipment can reduce buckling of wire, protect the wire.
Due to the fact that voltage shifting cannot be predicted, intervention time for voltmeter detection in the patent is too regular, timely detection cannot be conducted when voltage fluctuates, detection of voltage of a voltmeter is completed instantly, the service time of the voltmeter can be prolonged through a battery power exhaustion mode, service life of the voltmeter cannot be guaranteed, and targeted operation cannot be conducted when input voltage is too low;
the distribution voltage quality control device suitable for photovoltaic access needs to be provided for solving the problems.
Disclosure of Invention
The technical problems that the voltage cannot be timely detected when the voltage changes and cannot be rapidly increased when the voltage is too low are solved.
The application provides a distribution and transformation voltage quality control device suitable for photovoltaic access, which comprises a shell; the sliding resistor is arranged inside the shell, and the wires are respectively connected with the input end and the output end of the sliding resistor; the pressure value control mechanism is arranged in the shell and is connected with the lead, and the output end of the pressure value control mechanism is connected with the sliding sheet of the sliding resistor; the movable pressure measuring mechanism is arranged in the shell and is connected with the output end of the pressure value control mechanism; the conducting strip is arranged in the shell and connected with the conducting wire, and the input end of the movable pressure measuring mechanism faces the conducting strip; the voltmeter is arranged at the non-working part of the movable pressure measuring mechanism, and the input end of the voltmeter faces the conducting strip; and the boosting control mechanism is arranged in the shell and is connected with the lead.
Preferably, the pressure value control mechanism comprises an electromagnet, the electromagnet is arranged in the shell and fixedly connected with the shell, and the electromagnet is connected with a lead; the guide post is arranged in the shell and fixedly connected with the shell; the poking sheet is sleeved on the guide post and is in sliding connection with the guide post, the output end of the electromagnet faces the poking sheet, the guide post is provided with a first limiting sheet and a second limiting sheet, the poking sheet is located between the first limiting sheet and the second limiting sheet, and the poking sheet is respectively connected with a sliding sheet of the sliding resistor and the movable pressure measuring mechanism.
Preferably, the movable pressure measuring mechanism comprises a connecting column, and the bottom end of the connecting column is connected with the shifting sheet; the cylinder body is sleeved on the connecting column, the top end of the cylinder body is rotatably connected with the connecting column, a nut is arranged inside the cylinder body, the nut is in sliding connection with the connecting column and in threaded connection with the cylinder body, and the voltmeter is in transmission connection with the nut; and the air bag is positioned in the barrel, the bottom of the air bag is fixedly connected with the barrel, the nut is rotatably connected with the top of the air bag, and the top of the inner wall of the air bag is provided with a heating resistance wire which penetrates through the bottom of the air bag and faces the conducting strip.
Preferably, the bottom cover of barrel is equipped with the ring gear, and the ring gear passes through one-way bearing and is connected with the barrel, and movable pressure measurement mechanism is still including the guide frame, and the guide frame is arranged in the inside of casing and rather than fixed connection, and the conducting strip is installed on the guide frame, and the symmetry is equipped with the rack on the guide frame, rack and ring gear meshing.
Preferably, the movable pressure measuring mechanism further comprises a support, the support is arranged on the guide frame and is in sliding connection with the guide frame, the bottom of the support is fixedly connected with the poking piece, the top of the support is fixedly connected with the connecting column, arc-shaped poking pieces are symmetrically arranged on the support and meshed with the rack, a spring is arranged on the rack, and the rack is elastically connected with the guide frame through the spring.
Preferably, the top of the barrel is provided with a top frame, the top frame is rotatably connected with the barrel, and the top frame is in sliding connection with the guide frame; the movable pressure measuring mechanism also comprises a coil spring which is arranged at the bottom of the top frame and is fixedly connected with the top frame, and the output end of the bracket is connected with the inner wall of the cylinder body.
Preferably, the inner edge of the nut is provided with a movable ring, the nut is rotatably connected with the movable ring, the connecting column is provided with a channel, the nut is slidably connected with the channel, the movable ring is provided with a mandril and fixedly connected with the mandril, the outside of the voltmeter is provided with a connecting frame, the top end of the mandril is fixedly connected with the connecting frame, the connecting frame is provided with a limiting rod, the limiting rod penetrates through the connecting frame and is slidably connected with the connecting frame, and the limiting rod is installed outside the barrel.
Preferably, the boost control mechanism comprises a conductive piece, the conductive piece is arranged in the shell, and the conductive piece is connected with the input end of the lead; the pressure value transmitting piece is arranged in the shell and is connected with the output end of the lead, and the pressure value transmitting piece is movably connected with the conductive piece; and the servo motor is arranged outside the shell, and the output end of the servo motor is in transmission connection with the pressure value transmitting piece.
Preferably, the conductive piece comprises a fixed seat, and the fixed seat is arranged in the shell and fixedly connected with the shell; the fixing column is arranged on the fixing seat and is fixedly connected with the fixing seat; and the conducting rings are arranged on the fixed columns, movably connected with the output ends of the pressure transmitting pieces and connected with the input ends of the wires.
Preferably, the pressure value transmitting piece comprises a bearing seat, and the bearing seat is arranged in the shell and fixedly connected with the shell; the rotating rod is arranged on the bearing seat and is rotatably connected with the bearing seat, and the rotating rod is connected with the output end of the servo motor; the low-pressure groove ring group is formed by arranging a plurality of groove rings on the rotating rod, the groove rings are communicated with one another, and the width of each groove ring is consistent with the thickness of the low-pressure groove ring group; and the high-pressure groove ring group and the low-pressure groove ring group are consistent in structure, the low-pressure groove ring group and the high-pressure groove ring group are symmetrically arranged on the rotating rod, the rotating rod is provided with a separation strip, the separation strip is arranged between the low-pressure groove ring group and the high-pressure groove ring group, and the input end of the lead is positioned on the same plane on one side of the low-pressure groove ring group and the high-pressure groove ring group.
Compared with the prior art, the invention has the beneficial effects that:
the purposes of real-time adjustment of voltage, voltage boosting and voltage pertinence detection are achieved through the arrangement of the shell, the sliding resistor, the voltage value control mechanism, the movable pressure measuring mechanism, the conducting strip, the voltmeter and the voltage boosting control mechanism, and the problems that when the current and the voltage are unstable, damage to an electric appliance caused by overlarge and overlook voltage is avoided, and the service life of the voltmeter is shortened due to continuous work or interval work of the voltmeter are solved;
according to the voltage meter, the connection with the conducting strip is disconnected after the instantaneous detection of the voltage meter on the voltage is finished through the arrangement of the connecting column, the cylinder, the nut, the air bag, the heating resistance wire, the guide frame, the rack, the spring, the arc-shaped shifting piece and the coil spring, the voltage meter is timely driven to intervene to detect the voltage again when the voltage is unstable, and the problems that the whole condition of voltage change cannot be timely detected and corresponding operation cannot be performed due to the fact that intermittent voltage detection is regular but cannot be timely intervened when the voltage fluctuates are solved;
this application has realized carrying out the purpose that promotes fast to voltage through electrically conductive piece, pressure value transmitter and servo motor's setting, has solved how to prolong sliding resistance's life and has enlarged the technical problem of voltage control range.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic perspective view of the sliding resistor and the voltage control mechanism according to the present invention;
FIG. 5 is a schematic perspective view of the sliding resistor, the pressure control mechanism and the movable pressure measuring mechanism according to the present invention;
FIG. 6 is a schematic perspective view of the connecting post, barrel, bladder and voltmeter of the present invention;
FIG. 7 is a front view of the connecting post, barrel, bladder and voltmeter of the present invention;
FIG. 8 is a sectional view taken along line B-B of FIG. 7;
FIG. 9 is a top view of the movable pressure measuring mechanism, the conducting strip and the voltmeter of the present invention;
FIG. 10 is a schematic perspective view of the movable pressure measuring mechanism, the conducting strip and the voltmeter of the present invention;
FIG. 11 is a front view of the conductive member and the pressure value transmitting member of the present invention;
FIG. 12 is a flow chart of the present invention in an initial operating state;
fig. 13 is a flow chart in an operating state of the present invention.
The reference numbers in the figures are:
1-a shell;
2-sliding resistance;
3-a pressure value control mechanism; 3 a-an electromagnet; 3 b-a guide post; 3b 1-a first stopper; 3b 2-a second stopper; 3 c-a toggle sheet; 3 d-tension spring;
4-a movable pressure measuring mechanism; 4 a-connecting column; 4a 1-channel; 4 b-a cylinder; 4b 1-nut; 4b 2-ring gear; 4b 3-top frame; 4b 4-Movable Ring; 4b 5-Top bar; 4 c-air bag; 4c 1-heating resistance wire; 4 d-a guide frame; 4d 1-rack; 4d 2-spring; 4 e-a scaffold; 4e 1-arc paddle; 4 f-coil spring;
5, conducting strips;
6-a voltmeter; 6 a-a link; 6 b-a limiting rod;
7-a boost control mechanism; 7 a-a conductive member; 7a 1-fixed seat; 7a 2-fixed columns; 7a3 — conductive ring; 7 b-a pressure transmitter; 7b 1-bearing seat; 7b 2-rotating levers; 7b 3-low pressure groove ring set; 7b 4-high pressure groove ring set; 7b 5-separator bar; 7 c-a servo motor;
8-conductive wire.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1, fig. 2, fig. 12 and fig. 13, the following preferred technical solutions are provided:
a distribution and transformation voltage quality control device suitable for photovoltaic access comprises a shell 1; the sliding resistor 2 is arranged in the shell 1, and the lead 8 is respectively connected with the input end and the output end of the sliding resistor 2; the pressure value control mechanism 3 is arranged in the shell 1, the pressure value control mechanism 3 is connected with the lead 8, and the output end of the pressure value control mechanism 3 is connected with the sliding sheet of the sliding resistor 2; the movable pressure measuring mechanism 4 is arranged in the shell 1, and the movable pressure measuring mechanism 4 is connected with the output end of the pressure value control mechanism 3; the conducting strip 5 is arranged inside the shell 1, the conducting strip 5 is connected with the lead 8, and the input end of the movable pressure measuring mechanism 4 faces the conducting strip 5; the voltmeter 6 is arranged at the non-working part of the movable pressure measuring mechanism 4, and the input end of the voltmeter 6 faces the conducting strip 5; and a boost control mechanism 7, wherein the boost control mechanism 7 is arranged inside the shell 1, and the boost control mechanism 7 is connected with the lead 8;
specifically, in order to solve the technical problems that the voltage cannot be detected in time when the voltage changes and cannot be raised quickly when the voltage is too low, the current generated by the photovoltaic module needs to pass through a booster circuit, a distribution and transformation voltage quality control device and an intelligent controller in sequence, direct current is transmitted to a battery through the intelligent controller to be charged or power is supplied to an electric appliance needing the direct current, or the direct current is transmitted to an inverter through the intelligent controller, alternating current is transmitted to a power grid or the electric appliance through the inverter, wherein the direct current passing through the booster circuit possibly has unstable voltage, the current entering the distribution and transformation voltage quality control device needs to pass through a booster control mechanism 7, a voltage value control mechanism 3, a sliding resistor 2 and a conducting strip 5 in sequence, firstly, the voltage value control mechanism 3 and a voltmeter 6 react firstly, the input end of the voltmeter 6 contacts with the conducting strip 5 to detect the voltage in the initial state and upload the detected voltage to the corresponding controller, meanwhile, when the current branch of the lead 8 passes through the voltage value control mechanism 3, if the voltage is in a stable state, the voltage value control mechanism 3 keeps the original state, if the voltage is in an unstable state, for example, if the voltage is too high, the voltage value control mechanism 3 drives the slide sheet of the slide resistor 2 to regulate the voltage, for example, when the voltage is too low, the controller adjusts the boosting control mechanism 7 according to the data uploaded to the controller by the voltmeter 6 so as to increase the voltage of the input current, then the movable load measuring mechanism 4 controls the voltmeter 6 to be disconnected from the conducting strip 5, when the voltage is unstable and the voltage value control mechanism 3 moves again, the voltage value control mechanism 3 can drive the voltmeter 6 through the movable pressure measuring mechanism 4 to timely intervene to detect the voltage, and correspondingly control the sliding resistor 2 or the boosting control mechanism 7 according to the voltage condition.
As shown in fig. 4, the following preferred technical solutions are provided:
the pressure value control mechanism 3 comprises an electromagnet 3a, the electromagnet 3a is arranged in the shell 1 and fixedly connected with the shell, and the electromagnet 3a is connected with a lead 8; the guide post 3b is arranged in the shell 1 and is fixedly connected with the shell; the poking sheet 3c is sleeved on the guide post 3b and is in sliding connection with the guide post 3b, the output end of the electromagnet 3a faces the poking sheet 3c, the guide post 3b is provided with a first limiting sheet 3b1 and a second limiting sheet 3b2, the poking sheet 3c is positioned between the first limiting sheet 3b1 and the second limiting sheet 3b2, and the poking sheet 3c is respectively connected with the sliding sheet of the sliding resistor 2 and the movable pressure measuring mechanism 4;
specifically, in order to solve the technical problem of unstable voltage, when the lead 8 is electrified, the electromagnet 3a receives current and attracts the toggle piece 3c to approach, the distance between the toggle piece 3c and the electromagnet 3a is controlled by the magnetic force of the electromagnet 3a due to the pulling of the tension spring 3d, when the current and voltage of the lead 8 are increased, the magnetic force of the electromagnet 3a is increased and attracts the toggle piece 3c to shorten the distance, the toggle piece 3c drives the sliding piece of the sliding resistor 2 to move along with the sliding piece to adjust the resistance in the moving process, and meanwhile, the toggle piece 3c re-drives the input end of the voltmeter 6 to contact with the conducting piece 5 through the movable pressure measuring mechanism 4, because the distance between the first limiting piece 3b1 and the second limiting piece 3b2 is consistent with the moving distance of the sliding piece of the sliding resistor 2, in order to find the situation that the voltage is reduced in time in the using process, it is necessary to control the sliding resistor 2 not to be in the minimum resistance state when the guiding voltage is in the normal state, so that the moving plate 3c can continue to drive the movable pressure measuring mechanism 4 to make the voltmeter 6 perform detection when the voltage is reduced.
As shown in fig. 5 to 8, the following preferred technical solutions are provided:
the movable pressure measuring mechanism 4 comprises a connecting column 4a, and the bottom end of the connecting column 4a is connected with the stirring sheet 3 c; the cylinder body 4b is sleeved on the connecting column 4a, the top end of the cylinder body 4b is rotatably connected with the connecting column 4a, a nut 4b1 is arranged inside the cylinder body 4b, a nut 4b1 is in sliding connection with the connecting column 4a, a nut 4b1 is in threaded connection with the cylinder body 4b, and a voltmeter 6 is in transmission connection with the nut 4b 1; the air bag 4c is positioned inside the barrel body 4b, the bottom of the air bag 4c is fixedly connected with the barrel body 4b, the nut 4b1 is rotatably connected with the top of the air bag 4c, the top of the inner wall of the air bag 4c is provided with a heating resistance wire 4c1, and the heating resistance wire 4c1 penetrates through the bottom of the air bag 4c and faces the conducting strip 5;
specifically, in order to solve the technical problem that the service life of the voltmeter 6 is shortened and the voltmeter 6 is easily damaged when being always in a working state, when the lead 8 is in a power-on state, the voltmeter 6 detects the voltage instantly, the heating resistance wire 4c1 heats the gas inside the airbag 4c after contacting the conducting strip 5 to expand the gas, the expanded airbag 4c jacks up the nut 4b1, the barrel 4b is driven to rotate by the upward movement process of the nut 4b1, the nut 4b1 drives the voltmeter 6 to move along with the nut 4b in the upward movement process of the connecting column 4a, so that the voltmeter 6 is separated from the contact with the conducting strip 5, and the heating resistance wire 4c1 is also separated from the contact with the conducting strip 5 due to the expansion of the airbag 4 c.
As shown in fig. 6 to 10, the following preferred technical solutions are provided:
the bottom end of the cylinder 4b is sleeved with a gear ring 4b2, the gear ring 4b2 is connected with the cylinder 4b through a one-way bearing, the movable pressure measuring mechanism 4 further comprises a guide frame 4d, the guide frame 4d is arranged in the shell 1 and fixedly connected with the shell, the conducting strip 5 is arranged on the guide frame 4d, racks 4d1 are symmetrically arranged on the guide frame 4d, and the racks 4d1 are meshed with the gear ring 4b 2;
specifically, in order to solve the problem that the pulling nut 4b1 descends after the gas in the airbag 4c is cooled, the nut 4b1 is pushed upwards by the inflated air bag 4c, and the barrel 4b is rotated by the upward movement of the nut 4b1, because the cylinder 4b is in threaded connection with the nut 4b1, when the air in the air bag 4c is cooled and drives the nut 4b1 to descend, the rack 4d1 is meshed with the gear ring 4b2 to avoid the rotation of the cylinder 4b, when the cylinder 4b cannot rotate, the nut 4b1 cannot descend at the same time, the guide frame 4d is used for fixing and supporting, the gear ring 4b2 is connected with the cylinder 4b through the one-way bearing so that the gear ring 4b2 is meshed, the barrel 4b may still be engaged for one-way rotation whilst the nut 4b1 is still raised, but is limited by the ring gear 4b2 being engaged when the nut 4b1 needs to be lowered.
As shown in fig. 9 and 10, the following preferred technical solutions are provided:
the movable pressure measuring mechanism 4 further comprises a support 4e, the support 4e is arranged on the guide frame 4d and is in sliding connection with the guide frame 4d, the bottom of the support 4e is fixedly connected with a poking sheet 3c, the top of the support 4e is fixedly connected with a connecting column 4a, arc-shaped poking sheets 4e1 are symmetrically arranged on the support 4e, the arc-shaped poking sheets 4e1 are meshed with a rack 4d1, a spring 4d2 is arranged on the rack 4d1, and the rack 4d1 is elastically connected with the guide frame 4d through a spring 4d 2;
specifically, in order to solve the technical problem that the voltmeter 6 cannot detect in time when the voltage is unstable, the toggle piece 3c moves along the electromagnet 3a under the influence of the magnetic force of the electromagnet 3a, and the toggle piece 3c drives the arc-shaped toggle piece 4e1 to move along with the electromagnet through the bracket 4e, the arc-shaped toggle piece 4e1 jacks the racks 4d1 on two sides of the moving direction in the moving process, the gear ring 4b2 loses the limiting cylinder 4b of the rack 4d1 and can rotate again, so that the airbag 4c contracts and can drive the nut 4b1 to descend, the nut 4b1 drives the voltmeter 6 to descend and detect the voltage, and the spring 4d2 is used for pushing the rack 4d1 to be meshed with the gear ring 4b2 and enabling the spring 4d2 to retract in time when the arc-shaped toggle piece 4e1 jacks.
As shown in fig. 6 to 8, the following preferred technical solutions are provided:
the top of the cylinder 4b is provided with a top frame 4b3, the top frame 4b3 is rotatably connected with the cylinder 4b, and the top frame 4b3 is slidably connected with the guide frame 4 d; the movable pressure measuring mechanism 4 further comprises a coil spring 4f, the coil spring 4f is arranged at the bottom of the top frame 4b3 and is fixedly connected with the bottom of the top frame 4b3, and the output end of the bracket 4e is connected with the inner wall of the cylinder 4 b;
specifically, in order to solve the technical problem that in the instantaneous state of the rack 4d1 being pushed open, the nut 4b1 cannot drive the voltmeter 6 to descend until the output end of the voltmeter contacts the conducting strip 5, the nut 4b1 drives the cylinder 4b to rotate when rising so as to continuously unreel the coil spring 4f, after the racks 4d1 on the two sides of the guide frame 4d are pushed open, because the top frame 4b3 supports and cannot rotate and the cylinder 4b recovers the rotatable state, the output end of the coil spring 4f rapidly drives the cylinder 4b to rotate so as to rapidly descend the nut 4b1, and the nut 4b1 descends and simultaneously drives the output end of the voltmeter 6 and the heating resistance wire 4c1 to contact the conducting strip 5 again.
As shown in fig. 8 to 10, the following preferred technical solutions are provided:
the inner edge of the nut 4b1 is provided with a movable ring 4b4, the nut 4b1 is rotatably connected with the movable ring 4b4, a connecting column 4a is provided with a channel 4a1, the nut 4b1 is slidably connected with a channel 4a1, the movable ring 4b4 is provided with a mandril 4b5 and fixedly connected with the mandril 4b, the outer part of the voltmeter 6 is provided with a connecting frame 6a, the top end of the mandril 4b5 is fixedly connected with the connecting frame 6a, the connecting frame 6a is provided with a limiting rod 6b, the limiting rod 6b penetrates through the connecting frame 6a and is slidably connected with the connecting frame 6a, and the limiting rod 6b is installed on the outer part of the barrel 4 b;
specifically, in order to solve the technical problem that nut 4b1 drives voltmeter 6 to detect voltage, in the process that nut 4b1 rises or descends, nut 4b1 drives ejector pin 4b5 through activity ring 4b4 and moves along channel 4a1, ejector pin 4b5 drives voltmeter 6 through link 6a and rises or descends, and gag lever post 6b is used for carrying out structural support to link 6 a.
As shown in fig. 3, the following preferred technical solutions are provided:
the boost control mechanism 7 comprises a conductive piece 7a, the conductive piece 7a is arranged in the shell 1, and the conductive piece 7a is connected with the input end of the lead 8; the pressure value transmitting piece 7b is arranged in the shell 1, the pressure value transmitting piece 7b is connected with the output end of the lead 8, and the pressure value transmitting piece 7b is movably connected with the conductive piece 7 a; the servo motor 7c is arranged outside the shell 1, and the output end of the servo motor 7c is in transmission connection with the pressure value transmitting piece 7 b;
specifically, in order to solve the technical problem of how to prolong the service life of the sliding resistor 2 and expand the voltage regulation range, the current of the wire 8 sequentially passes through the voltage value transmitting member 7b, the conductive member 7a, the voltage value control mechanism 3, the sliding resistor 2 and the conductive sheet 5, the phenomenon of too low voltage may occur due to the instability of the transmission voltage of the boost circuit, when the voltmeter 6 detects that the voltage is too low, the boost control mechanism 7 is opened through the corresponding controller, the output end of the servo motor 7c drives the voltage value transmitting member 7b to switch stations, the contact point of the voltage value transmitting member 7b and the conductive member 7a is a circuit transmission line, and when the station of the voltage value transmitting member 7b is switched, the mode is switched to the ultra-low resistance mode, so that the voltage input by the wire 8 is improved.
As shown in fig. 11, the following preferred technical solutions are provided:
the conductive piece 7a comprises a fixed seat 7a1, and the fixed seat 7a1 is arranged inside the shell 1 and fixedly connected with the shell; the fixing column 7a2 is arranged on the fixing seat 7a1 and is fixedly connected with the fixing seat 7a 2; the conducting ring 7a3, the conducting ring 7a3 is arranged on the fixed column 7a2, the conducting ring 7a3 is movably connected with the output end of the voltage value transmission piece 7b, and the conducting ring 7a3 is connected with the input end of the lead 8;
specifically, in order to solve the technical problem of current transmission during circuit switching, the voltage transformer 7b is electrically connected to the plurality of conductive rings 7a3 during station switching, current is transmitted to the lead 8 through the plurality of conductive rings 7a3, and the fixing posts 7a2 are made of insulating materials such as ceramics.
As shown in fig. 11, the following preferred technical solutions are provided:
the pressure value transmitting piece 7b comprises a bearing seat 7b1, and the bearing seat 7b1 is arranged inside the shell 1 and is fixedly connected with the shell; the rotating rod 7b2 is arranged on the bearing seat 7b1 and is rotatably connected with the bearing seat 7b2, and the rotating rod 7b2 is connected with the output end of the servo motor 7 c; and a low pressure groove ring group 7b3, the low pressure groove ring group 7b3 is arranged on the rotating rod 7b2 by a plurality of groove rings, and the plurality of groove rings are communicated with each other, and the width of the groove ring is consistent with the thickness of the low pressure groove ring group 7b 3; the high-voltage slotted ring group 7b4 is characterized in that the high-voltage slotted ring group 7b4 and the low-voltage slotted ring group 7b3 are consistent in structure, the low-voltage slotted ring group 7b3 and the high-voltage slotted ring group 7b4 are symmetrically arranged on the rotating rod 7b2, a separating strip 7b5 is arranged on the rotating rod 7b2, the separating strip 7b5 is arranged between the low-voltage slotted ring group 7b3 and the high-voltage slotted ring group 7b4, and the input end of the lead 8 is positioned on the same plane on one side of the low-voltage slotted ring group 7b3 and one side of the high-voltage slotted ring group 7b 4;
specifically, in order to solve the technical problem of too small current and voltage input, the low voltage notch ring group 7b3 and the high voltage notch ring group 7b4 have high resistance and low resistance, respectively, since the current passing through the boost circuit under normal conditions will not be too low and the cost of the material used by the low voltage notch ring group 7b3 is high, the high voltage notch ring group 7b4 is generally used, the current is transmitted to the conductive ring 7a3 through the high voltage notch ring group 7b4 and then transmitted to the input end of the wire 8 through the conductive ring 7a3, when the current and voltage are too low, the servo motor 7c drives the rotating rod 7b2 to rotate, the rotating rod 7b2 drives the low voltage notch ring group 7b3 and the high voltage notch ring group 7b4 to switch positions, so that the low voltage notch ring group 7b3 contacts with the input end of the wire 8, the voltage is increased by reducing the resistance, the bearing seat 7b1 is used for fixed support, the rotating rod 7b2 is made of insulating material such as ceramic, the dividing bar 7b5 is used to avoid galvanic communication between the low pressure slot ring set 7b3 and the high pressure slot ring set 7b 4.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Distribution and transformation voltage quality control device suitable for photovoltaic access, its characterized in that is including casing (1): the sliding resistor (2) is arranged in the shell (1), and the conducting wires (8) are respectively connected with the input end and the output end of the sliding resistor (2); the pressure value control mechanism (3) is arranged in the shell (1), the pressure value control mechanism (3) is connected with the lead (8), and the output end of the pressure value control mechanism (3) is connected with the sliding sheet of the sliding resistor (2); the movable pressure measuring mechanism (4) is arranged in the shell (1), and the movable pressure measuring mechanism (4) is connected with the output end of the pressure value control mechanism (3); the conducting strip (5) is arranged inside the shell (1), the conducting strip (5) is connected with the lead (8), and the input end of the movable pressure measuring mechanism (4) faces the conducting strip (5); the voltmeter (6) is arranged at the non-working part of the movable pressure measuring mechanism (4), and the input end of the voltmeter (6) faces the conducting strip (5); the boost control mechanism (7) is arranged in the shell (1), and the boost control mechanism (7) is connected with the lead (8); the movable pressure measuring mechanism (4) comprises a connecting column (4 a), and the bottom end of the connecting column (4 a) is connected with the stirring sheet (3 c); the barrel (4 b) is sleeved on the connecting column (4 a), the top end of the barrel (4 b) is rotatably connected with the connecting column (4 a), a nut (4 b 1) is arranged inside the barrel (4 b), the nut (4 b 1) is in sliding connection with the connecting column (4 a), the nut (4 b 1) is in threaded connection with the barrel (4 b), and the voltmeter (6) is in transmission connection with the nut (4 b 1); the air bag (4 c) is positioned inside the barrel body (4 b), the bottom of the air bag (4 c) is fixedly connected with the barrel body (4 b), the nut (4 b 1) is rotatably connected with the top of the air bag (4 c), the top of the inner wall of the air bag (4 c) is provided with a heating resistance wire (4 c 1), and the heating resistance wire (4 c 1) penetrates through the bottom of the air bag (4 c) and faces the conducting strip (5); the bottom cover of barrel (4 b) is equipped with ring gear (4 b 2), ring gear (4 b 2) are connected with barrel (4 b) through one-way bearing, movable pressure measurement mechanism (4) are still including guide frame (4 d), guide frame (4 d) set up in the inside of casing (1) and rather than fixed connection, conducting strip (5) are installed on guide frame (4 d), the symmetry is equipped with rack (4 d 1) on guide frame (4 d), rack (4 d 1) and ring gear (4 b 2) meshing.
2. The distribution and transformation voltage quality control device suitable for photovoltaic access according to claim 1, characterized in that the voltage value control mechanism (3) comprises an electromagnet (3 a), the electromagnet (3 a) is arranged inside the shell (1) and is fixedly connected with the shell, and the electromagnet (3 a) is connected with the lead (8); the guide post (3 b) is arranged in the shell (1) and is fixedly connected with the shell; and the poking sheet (3 c) is sleeved on the guide column (3 b) and is in sliding connection with the guide column (3 b), the output end of the electromagnet (3 a) faces the poking sheet (3 c), a first limiting sheet (3 b 1) and a second limiting sheet (3 b 2) are arranged on the guide column (3 b), the poking sheet (3 c) is positioned between the first limiting sheet (3 b 1) and the second limiting sheet (3 b 2), and the poking sheet (3 c) is respectively connected with a sliding sheet of the sliding resistor (2) and the movable pressure measuring mechanism (4).
3. The distribution and transformation voltage quality control device suitable for photovoltaic access according to claim 1, wherein the movable pressure measurement mechanism (4) further comprises a support (4 e), the support (4 e) is arranged on the guide frame (4 d) and is in sliding connection with the guide frame, the bottom of the support (4 e) is fixedly connected with the poking piece (3 c), the top of the support (4 e) is fixedly connected with the connecting column (4 a), the support (4 e) is symmetrically provided with arc-shaped poking pieces (4 e 1), the arc-shaped poking pieces (4 e 1) are meshed with the rack (4 d 1), the rack (4 d 1) is provided with a spring (4 d 2), and the rack (4 d 1) is elastically connected with the guide frame (4 d) through the spring (4 d 2).
4. The distribution and transformation voltage quality control device suitable for photovoltaic access according to claim 3, characterized in that the top of the barrel (4 b) is provided with a top frame (4 b 3), the top frame (4 b 3) is rotatably connected with the barrel (4 b), and the top frame (4 b 3) is slidably connected with the guide frame (4 d); the movable pressure measuring mechanism (4) further comprises a coil spring (4 f), the coil spring (4 f) is arranged at the bottom of the top frame (4 b 3) and fixedly connected with the bottom, and the output end of the support (4 e) is connected with the inner wall of the cylinder body (4 b).
5. The distribution and transformation voltage quality control device suitable for photovoltaic access according to claim 1, wherein a movable ring (4 b 4) is arranged at the inner edge of a nut (4 b 1), the nut (4 b 1) is rotatably connected with the movable ring (4 b 4), a channel (4 a 1) is arranged on the connecting column (4 a), a nut (4 b 1) is slidably connected with a channel (4 a 1), a top rod (4 b 5) is arranged on the movable ring (4 b 4) and fixedly connected with the top rod, a connecting frame (6 a) is arranged outside the voltmeter (6), the top end of the top rod (4 b 5) is fixedly connected with the connecting frame (6 a), a limiting rod (6 b) is arranged on the connecting frame (6 a), the limiting rod (6 b) penetrates through the connecting frame (6 a) and is slidably connected with the connecting frame, and the limiting rod (6 b) is arranged outside the barrel (4 b).
6. The distribution and transformation voltage quality control device suitable for photovoltaic access according to claim 1, characterized in that the boost control mechanism (7) comprises a conductive member (7 a), the conductive member (7 a) is arranged inside the shell (1), and the conductive member (7 a) is connected with the input end of the lead (8); the pressure value transmitting piece (7 b), the pressure value transmitting piece (7 b) is arranged in the shell (1), the pressure value transmitting piece (7 b) is connected with the output end of the lead (8), and the pressure value transmitting piece (7 b) is movably connected with the conductive piece (7 a); and the servo motor (7 c), the servo motor (7 c) is arranged outside the shell (1), and the output end of the servo motor (7 c) is in transmission connection with the pressure value transmission piece (7 b).
7. The distribution transformer voltage quality control device suitable for photovoltaic access according to claim 6, characterized in that the conductive member (7 a) comprises a fixed seat (7 a 1), the fixed seat (7 a 1) is arranged inside the casing (1) and fixedly connected with the casing; the fixing column (7 a 2) is arranged on the fixing seat (7 a 1) and is fixedly connected with the fixing seat (7 a 2); and the conducting ring (7 a 3), the conducting ring (7 a 3) is arranged on the fixed column (7 a 2), the conducting ring (7 a 3) is movably connected with the output end of the pressure value transmitting piece (7 b), and the conducting ring (7 a 3) is connected with the input end of the lead (8).
8. The distribution and transformation voltage quality control device suitable for photovoltaic access according to claim 7, characterized in that the voltage value transmitter (7 b) comprises a bearing seat (7 b 1), the bearing seat (7 b 1) is arranged inside the casing (1) and is fixedly connected with the casing; the rotating rod (7 b 2), the rotating rod (7 b 2) is arranged on the bearing seat (7 b 1) and is rotatably connected with the bearing seat, and the rotating rod (7 b 2) is connected with the output end of the servo motor (7 c); and a low-pressure grooved ring group (7 b 3), wherein the low-pressure grooved ring group (7 b 3) is formed by arranging a plurality of grooved rings on the rotating rod (7 b 2), the plurality of grooved rings are communicated with each other, and the width of each grooved ring is consistent with the thickness of the low-pressure grooved ring group (7 b 3); and the high-pressure slotted ring group (7 b 4), the high-pressure slotted ring group (7 b 4) and the low-pressure slotted ring group (7 b 3) are consistent in structure, the low-pressure slotted ring group (7 b 3) and the high-pressure slotted ring group (7 b 4) are symmetrically arranged on the rotating rod (7 b 2), a separating strip (7 b 5) is arranged on the rotating rod (7 b 2), the separating strip (7 b 5) is arranged between the low-pressure slotted ring group (7 b 3) and the high-pressure slotted ring group (7 b 4), and the input end of the lead (8) is positioned on the same plane on one side of the low-pressure slotted ring group (7 b 3) and the high-pressure slotted ring group (7 b 4).
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| CN202210894339.5A CN114977199B (en) | 2022-07-28 | 2022-07-28 | Distribution and transformation voltage quality control device suitable for photovoltaic access |
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| CN202210894339.5A CN114977199B (en) | 2022-07-28 | 2022-07-28 | Distribution and transformation voltage quality control device suitable for photovoltaic access |
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| CN114977199B true CN114977199B (en) | 2022-09-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514547Y (en) * | 2001-09-27 | 2002-10-02 | 阮作伟 | Series voltage regulator for power supply line |
| WO2016201968A1 (en) * | 2015-06-16 | 2016-12-22 | 江苏现代电力科技股份有限公司 | Low-voltage power distribution voltage-regulating device |
| CN205911749U (en) * | 2016-06-13 | 2017-01-25 | 广西云涌科技有限公司 | Control of power quality device and have control of power quality's comprehensive block terminal |
| KR102281878B1 (en) * | 2021-04-13 | 2021-07-26 | 주식회사 케이디티 | System for generating solar power including voltage boosting device for each string |
| CN114552438A (en) * | 2022-03-11 | 2022-05-27 | 中国测试技术研究院电子研究所 | Electric energy quality controller capable of being discontinuously connected into circuit to measure voltage |
-
2022
- 2022-07-28 CN CN202210894339.5A patent/CN114977199B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514547Y (en) * | 2001-09-27 | 2002-10-02 | 阮作伟 | Series voltage regulator for power supply line |
| WO2016201968A1 (en) * | 2015-06-16 | 2016-12-22 | 江苏现代电力科技股份有限公司 | Low-voltage power distribution voltage-regulating device |
| CN205911749U (en) * | 2016-06-13 | 2017-01-25 | 广西云涌科技有限公司 | Control of power quality device and have control of power quality's comprehensive block terminal |
| KR102281878B1 (en) * | 2021-04-13 | 2021-07-26 | 주식회사 케이디티 | System for generating solar power including voltage boosting device for each string |
| CN114552438A (en) * | 2022-03-11 | 2022-05-27 | 中国测试技术研究院电子研究所 | Electric energy quality controller capable of being discontinuously connected into circuit to measure voltage |
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