CN105811788A - High potential energy supply system used for high voltage power electronic device - Google Patents
High potential energy supply system used for high voltage power electronic device Download PDFInfo
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- CN105811788A CN105811788A CN201410849143.XA CN201410849143A CN105811788A CN 105811788 A CN105811788 A CN 105811788A CN 201410849143 A CN201410849143 A CN 201410849143A CN 105811788 A CN105811788 A CN 105811788A
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Abstract
The invention provides a high potential energy supply system used for a high voltage power electronic device. The high potential energy supply system comprises a frequency converter, a high frequency isolation transformer, a distributed magnet ring, and a rectification voltage stabilization module. The input end of the frequency converter is connected with a power frequency alternating current power supply, and the output end thereof is connected with the input end of the high frequency isolation transformer. The output end of the high frequency isolation transformer is connected with the input end of the distributed magnet ring fixedly disposed on the high potential by a high voltage cable, and the output end of the distributed magnet ring is connected with the input end of the rectification voltage stabilization module. The frequency converter is used to convert the power frequency alternating current power supply into the high frequency alternating current power supply, and the high frequency isolation transformer is used to convey the alternating current to the high potential, and then two or more than two channels of alternating current are output in a distributed manner, and the rectification voltage stabilization module is used to convert the alternating current into the direct voltage for the power supply of the driving circuit of the high voltage power electronic device. By adopting the technical scheme provided by the invention, the high potential energy supply system is advantageous in that the structure is simple and compact, the function is complete, the size of the device is small, the kw-scale large power electric energy can be provided, and the high voltage electric isolation of different potentials on the high potential can be realized.
Description
Technical field
The present invention relates to a kind of energy supplying system, in particular to a kind of high voltage electric and electronic device high potential energy supplying system.
Background technology
High voltage electric and electronic device be composition HVDC Equipments core component, its in actual applications, power electronic devices is in a high-voltage by series connection, and drive circuit is directly electrically connected, and is in same current potential, as shown in Figure 1.Drive circuit obtain energy when, reliably working can be ensured, it is in high potential, causes it not directly to be connected with ground power supply system, can only high potential energy collecting or pass through electrical isolation from earth potential to its energy supply.In DC line, without alternating electromagnetic field, directly taking can be difficult, is therefore selected in by earth potential to its energy supply, and power electronic devices is in again different current potentials, becomes distributed arrangement, then be called high-order distribution energy supply.
The energy supplying system of the high voltage electric and electronic device of current straight-flow system mainly includes laser energy supplying system, solar energy energy supplying system and power frequency isolation transformer energy supplying system.
The finite energy that laser energy supplying system can be provided by, for milliwatt level, far from disclosure satisfy that electric energy needed for multikilowatt load；Solar electric power supply system is affected greatly by extraneous natural cause, it is impossible to electric energy needed for the output successive load of enough continuous-stables；Industrial Frequency Transformer volume and magnet ring volume and weight in power frequency isolation transformer energy supplying system are all relatively big, are unfavorable for transport, install and integrated；
Accordingly, it is desirable to provide a kind of new technical scheme, namely this technical scheme is provided that stable high-power power, can reduce again the volume of energy supplying system, it is simple to transport is installed.
Summary of the invention
In order to solve above-mentioned deficiency existing in prior art, the present invention provides a kind of new high voltage electric and electronic device high potential energy supplying system.
Present invention provide the technical scheme that a kind of high voltage electric and electronic device high potential energy supplying system, including converter, high-frequency isolation transformer, distributed magnet ring and rectifying and voltage-stabilizing module；It thes improvement is that: the input termination power frequency AC of described converter, its output terminates the input of described high-frequency isolation transformer, the outfan of described high-frequency isolation transformer is connected with the input being fixed on high potential described distributed magnet ring by high tension cable, and the outfan of described distributed magnet ring is connected with the input of described rectifying and voltage-stabilizing module；Power frequency AC is converted to high-frequency ac power by described converter, alternating current is delivered to high potential by described high-frequency isolation transformer, described distributed magnet ring output two-way or the above alternating current of two-way, AC conversion is the drive circuitry that DC voltage gives described high voltage electric and electronic device by described rectifying and voltage-stabilizing module.
Preferably, the outfan of described rectifying and voltage-stabilizing module is connected with described converter by voltage feedback loop, described voltage feedback loop detects the output voltage of described power module, and send control signal to described converter, described converter regulates amplitude and the pulsewidth of self output voltage according to described control signal, thus controlling described rectifying and voltage-stabilizing module to export the running voltage needed for described drive circuit.
Preferably, described rectifying and voltage-stabilizing module includes semiconductor rectifier and voltage-stabilizing device；Alternating voltage is converted into direct voltage output to described voltage-stabilizing device by described semiconductor rectifier, gives described drive circuitry after described voltage-stabilizing device voltage stabilizing.
Preferably, described high-frequency isolation transformer includes cylindrical insulation crust, is separately mounted to metab and the grading ring at described cylindrical insulation crust two ends, and is arranged on the transformer body in described cylindrical insulation crust；Described insulation crust top is provided with two insulators along the direction that its axis is parallel；High-frequency ac power inputs from the metab bottom described insulation crust, after described transformer body transformation, exports at described insulator top.
Further, described transformer body includes the two-stage or the above transformator of two-stage that are sequentially connected with；Winding two ends of the first order transformator of the two-stage being sequentially connected with or the above transformator of two-stage are input, and the Secondary Winding two ends of afterbody transformator are outfan；
Every grade of transformator of described transformer body is provided with equalizer circuit, and described equalizer circuit includes resistance and the electric capacity of parallel connection；One end of described resistance is connected with the Same Name of Ends of transformator winding, and its other end is connected with the Same Name of Ends of Secondary Winding.
Preferably, described distributed magnet ring includes two or more magnet rings；
Described magnet ring includes leaving the insulation crust of high tension cable threading center hole and the concentricity magnet ring body being arranged in described insulation crust in the middle part of vertical gripper shoe fixing its vertical with described vertical gripper shoe.
Further, the bottom of described insulation crust is downwardly convex circular arc camber, described vertical gripper shoe is rectangular slab, and the both sides of described vertical gripper shoe are respectively arranged with the hollow cylindrical keeper that axis is vertical with described center hole axis, for described magnet ring is fixed on high potential.
Further, the top of described insulation crust, in the horizontal plane slightly above described vertical gripper shoe, is used for fixing rectifying and voltage-stabilizing module；Described vertical gripper shoe top is provided with two vertical outlet terminals, for connecting the input of rectifying and voltage-stabilizing module.
Preferably, the outfan of described voltage stabilizing rectification module is also associated with inverter, and the DC voltage that described voltage stabilizing rectification module exports is converted to alternating voltage by described inverter, for powering to AC load.
Preferably, the outfan of described voltage stabilizing rectification module is also associated with DC/DC changer, and the DC voltage that described voltage stabilizing rectification module exports is converted to the DC voltage of other grades by described DC/DC changer, for powering to other DC loads.
Compared with immediate technical scheme, the present invention has following marked improvement:
1, adopting stable power frequency AC as the power supply of energy supplying system, power supply is not by extraneous natural cause and component influences, it is ensured that energy supplying system self input is stable, improves power supply reliability；
2, the outfan of rectifying and voltage-stabilizing module is connected with transformator by voltage feedback loop, adopts closed loop feedback to regulate the output voltage of rectifying and voltage-stabilizing module, it is ensured that the output voltage stabilization of energy supplying system, it is provided that power supply reliability；
3, earth potential is delivered to high potential by high-frequency isolation transformer, send compared with energy mode with traditional power frequency isolation transformer, when isolating ad eundem voltage, volume is substantially reduced, and reduces transport difficulty and the installation difficulty of energy supplying system, has saved power supply cost；
4, high-frequency isolation transformer effectively achieves high-voltage electrical apparatus isolation, it is possible to provide multikilowatt high-power power, meets high power load demand, improves the energy supply performance of energy supplying system；
5, magnet ring structure is compact and successive load wiring is convenient, easy for installation, reduces volume and weight, provides cost savings；
6, at the output side joint DC/DC changer of rectifying and voltage-stabilizing module, the unidirectional current that rectifying and voltage-stabilizing module exports can be used for other DC load needing high-order energy supply, increase the scope of application of high-order energy supplying system, reduce cost and take up room；
7, at the output side joint inverter of rectifying and voltage-stabilizing module, can be that alternating current is used for other AC load needing high-order energy supply by the DC conversion that rectifying and voltage-stabilizing module exports, increase the scope of application of high-order energy supplying system, reduce cost and take up room.
Accompanying drawing explanation
Fig. 1 is high voltage electric and electronic device system construction drawing in actual applications；
Fig. 2 is the structure principle chart of high voltage electric and electronic device high potential energy supplying system provided by the invention；
Fig. 3 is the shape assumption diagram of Fig. 2 medium-high frequency isolating transformer；
Fig. 4 is the circuit theory diagrams of Fig. 2 medium-high frequency isolating transformer；
Fig. 5 is the structure principle chart of magnet ring.
Wherein 1-insulator, 2-grading ring, 3-cylinder insulation crust, 4-metab, 5-outlet terminal, 6-center hole, 7-keeper, 8-insulation crust, the vertical gripper shoe of 9-.
Detailed description of the invention
In order to be more fully understood that the present invention, below in conjunction with Figure of description and example, present disclosure is described further.
The present invention provides a kind of high voltage electric and electronic device high potential energy supplying system, the structure of this system as shown in Figure 2: mainly include converter, high-frequency isolation transformer, high tension cable, distributed magnet ring T1～Tn (n is magnet ring number), rectifying and voltage-stabilizing module；DC voltage-stabilizing module mainly includes semiconductor rectifier and voltage-stabilizing device.
This structure use converter power frequency AC is converted to the high-frequency ac power of tens kHz, rear class uses classification high-frequency isolation transformer, energy is delivered to high potential, transformator is used for isolated high voltage, transmit energy, by high tension cable and distribution magnet ring, realize multiple way electric output, n the rectifying and voltage-stabilizing module by connection corresponding to distributed magnet ring T1～Tn, the galvanic current pressure required for the drive circuit of different potentials place high voltage electric and electronic device can be obtained, directly to its power supply.
The structure of high-frequency isolation transformer is as shown in Figure 3: transformer body is arranged in cylinder blanket, and enclosure material adopts insulant, is used for isolating high pressure, increases creep age distance；Civil power is inputted by the bottom of insulation crust, exports from the two of its top insulator ends, and bottom metal base plays fixed installation effect, and top metal ring plays all pressure effects；Insulator primarily serves two effects: provides structure to connect, increases insulation distance.
The circuit theory diagrams of transformer body are as shown in Figure 4: transformer body is sequentially connected with by stagewise transformator and forms, and uses equalizer circuit simultaneously, it is ensured that every grade of transformator withstanding voltage value is impartial, effectively reduces volume of transformer.
In order to ensure the voltage needed for rectifying and voltage-stabilizing module output driving circuit normal operation；Between the outfan and converter of rectifying and voltage-stabilizing module, voltage feedback circuit is set；The output voltage of rectifying and voltage-stabilizing module is detected by voltage feedback circuit, when detecting output voltage higher or lower than required voltage, by amount of correlated information transmission to prime converter, the output virtual value of self is regulated, thus regulating the output voltage of rectifying and voltage-stabilizing module to normal working voltage scope by converter.
Magnet ring is fixed on high potential, adopts multiple magnet ring to realize multiple way electric output.The structural design of magnet ring is as it is shown in figure 5, mainly include vertical gripper shoe and insulation crust, and the center hole of high tension cable threading is left at the middle part of insulation crust, and in insulation crust, concentricity installation magnet ring body, magnet ring body is wound with secondary coil；The side of vertical gripper shoe uses hole, four location, it is possible to achieve oneself's fixed installation of distributed magnet ring；Vertical gripper shoe top is provided with the outlet terminal of two secondary coils, is used for realizing convenient connection electric outlet；The top of insulation crust is plane, in order to place fixing rear class power module, is effectively saved space.
The present invention is except can giving the drive circuit high position energy supply of high voltage electric and electronic device, can also at the output side joint inverter of rectifying and voltage-stabilizing module, by the alternating current that the DC conversion that rectifying and voltage-stabilizing module exports is different electric pressure, power to other AC loads；Or DC/DC changer is set at the outlet side of rectifying and voltage-stabilizing module, the unidirectional current that DC conversion is other electric pressures rectifying and voltage-stabilizing module exported, for powering to other DC loads；The applied widely of energy supplying system can be increased in this way, save cost, improve power supply reliability.
These are only embodiments of the invention, be not limited to the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacements, improvement etc., all applying within the scope of the presently claimed invention awaited the reply.
Claims (10)
1. a high voltage electric and electronic device high potential energy supplying system, including converter, high-frequency isolation transformer, distributed magnet ring and rectifying and voltage-stabilizing module；It is characterized in that: the input termination power frequency AC of described converter, its output terminates the input of described high-frequency isolation transformer, the outfan of described high-frequency isolation transformer is connected with the input being fixed on high potential described distributed magnet ring by high tension cable, and the outfan of described distributed magnet ring is connected with the input of described rectifying and voltage-stabilizing module；Power frequency AC is converted to high-frequency ac power by described converter, alternating current is delivered to high potential by described high-frequency isolation transformer, described distributed magnet ring output two-way or the above alternating current of two-way, AC conversion is the drive circuitry that DC voltage gives described high voltage electric and electronic device by described rectifying and voltage-stabilizing module.
2. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 1, it is characterized in that: the outfan of described rectifying and voltage-stabilizing module is connected with described converter by voltage feedback loop, described voltage feedback loop detects the output voltage of described power module, and send control signal to described converter, described converter regulates amplitude and the pulsewidth of self output voltage according to described control signal, thus controlling described rectifying and voltage-stabilizing module to export the running voltage needed for described drive circuit.
3. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 2, it is characterised in that:
Described rectifying and voltage-stabilizing module includes semiconductor rectifier and voltage-stabilizing device；Alternating voltage is converted into direct voltage output to described voltage-stabilizing device by described semiconductor rectifier, gives described drive circuitry after described voltage-stabilizing device voltage stabilizing.
4. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 1, it is characterised in that:
Described high-frequency isolation transformer includes cylindrical insulation crust, is separately mounted to metab and the grading ring at described cylindrical insulation crust two ends, and is arranged on the transformer body in described cylindrical insulation crust；Described insulation crust top is provided with two insulators along the direction that its axis is parallel；High-frequency ac power inputs from the metab bottom described insulation crust, after described transformer body transformation, exports at described insulator top.
5. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 4, it is characterised in that:
Described transformer body includes the two-stage or the above transformator of two-stage that are sequentially connected with；Winding two ends of the first order transformator of the two-stage being sequentially connected with or the above transformator of two-stage are input, and the Secondary Winding two ends of afterbody transformator are outfan；
Every grade of transformator of described transformer body is provided with equalizer circuit, and described equalizer circuit includes resistance and the electric capacity of parallel connection；One end of described resistance is connected with the Same Name of Ends of transformator winding, and its other end is connected with the Same Name of Ends of Secondary Winding.
6. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 1, it is characterised in that:
Described distributed magnet ring includes two or more magnet rings；
Described magnet ring includes leaving the insulation crust of high tension cable threading center hole and the concentricity magnet ring body being arranged in described insulation crust in the middle part of vertical gripper shoe fixing its vertical with described vertical gripper shoe.
7. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 6, it is characterised in that:
The bottom of described insulation crust is downwardly convex circular arc camber, described vertical gripper shoe is rectangular slab, the both sides of described vertical gripper shoe are respectively arranged with the hollow cylindrical keeper that axis is vertical with described center hole axis, for described magnet ring is fixed on high potential.
8. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 7, it is characterised in that:
The top of described insulation crust, in the horizontal plane slightly above described vertical gripper shoe, is used for fixing rectifying and voltage-stabilizing module；Described vertical gripper shoe top is provided with two vertical outlet terminals, for connecting the input of rectifying and voltage-stabilizing module.
9. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 3, it is characterised in that:
The outfan of described voltage stabilizing rectification module is also associated with inverter, and the DC voltage that described voltage stabilizing rectification module exports is converted to alternating voltage by described inverter, for powering to AC load.
10. a kind of high voltage electric and electronic device high potential energy supplying system as claimed in claim 3, it is characterised in that:
The outfan of described voltage stabilizing rectification module is also associated with DC/DC changer, and the DC voltage that described voltage stabilizing rectification module exports is converted to the DC voltage of other grades by described DC/DC changer, for powering to other DC loads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410849143.XA CN105811788A (en) | 2014-12-29 | 2014-12-29 | High potential energy supply system used for high voltage power electronic device |
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| CN201410849143.XA CN105811788A (en) | 2014-12-29 | 2014-12-29 | High potential energy supply system used for high voltage power electronic device |
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| CN105811788A true CN105811788A (en) | 2016-07-27 |
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| CN201410849143.XA Pending CN105811788A (en) | 2014-12-29 | 2014-12-29 | High potential energy supply system used for high voltage power electronic device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107070246A (en) * | 2017-04-19 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of energy supplying system and method |
| CN107086648A (en) * | 2017-05-16 | 2017-08-22 | 西安交通大学 | A kind of distributing-supplying-energy system for the different high pressure suspending current potentials of multiple spot |
| CN111509757A (en) * | 2020-04-03 | 2020-08-07 | 清华大学 | Isolated energy supply device and method for fully-controlled switch device |
| CN113595413A (en) * | 2021-08-24 | 2021-11-02 | 华北电力大学 | Voltage and current stabilization control device and method for high-potential energy supply of direct-current circuit breaker |
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| CN111509757A (en) * | 2020-04-03 | 2020-08-07 | 清华大学 | Isolated energy supply device and method for fully-controlled switch device |
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| CN113595413A (en) * | 2021-08-24 | 2021-11-02 | 华北电力大学 | Voltage and current stabilization control device and method for high-potential energy supply of direct-current circuit breaker |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: GLOBAL ENERGY INTERCONNECTION Research Institute Applicant after: CHINA-EPRI ELECTRIC POWER ENGINEERING Co.,Ltd. Applicant after: NORTH CHINA GRID Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: STATE GRID SMART GRID Research Institute Applicant before: CHINA-EPRI ELECTRIC POWER ENGINEERING Co.,Ltd. Applicant before: NORTH CHINA GRID Co.,Ltd. |
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Application publication date: 20160727 |