CN202663128U - Pulse power transmission system - Google Patents
Pulse power transmission system Download PDFInfo
- Publication number
- CN202663128U CN202663128U CN 201220308018 CN201220308018U CN202663128U CN 202663128 U CN202663128 U CN 202663128U CN 201220308018 CN201220308018 CN 201220308018 CN 201220308018 U CN201220308018 U CN 201220308018U CN 202663128 U CN202663128 U CN 202663128U
- Authority
- CN
- China
- Prior art keywords
- pulse
- frequency
- voltage
- direct current
- receiving end
- 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 - Lifetime
Links
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The utility model discloses a pulse power transmission system, which comprises a three-phase full-wave rectification module, a sending end DC-pulse conversion module, a sending end pulse transformer, a sending end high-voltage pulse conversion module, a power transmission line, a receiving end high-voltage pulse conversion module, a receiving end pulse transformer and a receiving end low-voltage pulse conversion module. DC with ripples at the sending end is converted into pulses which are adjustable in frequency and duty ratio, the converted pulses are input into the pulse transformer and subjected to voltage-level conversion, and the pulses output by the pulse transformer are converted into DC or pulses which are adjustable in frequency and duty ratio; and the DC or pulses transmitted by the power transmission line is/are converted into pulses which are adjustable in frequency and duty ratio at the receiving end and subjected to voltage-level conversion through the pulse transformer, and the converted pulses are converted into power frequency pulses or pulses equivalent to power frequency to be used by users. The pulse power transmission system can be compatible with an AC/DC power grid and electric equipment.
Description
Technical field
The utility model relates to power transmission system, more specifically relates to a kind of pulse transmission system.
Background technology
Direct current transportation has that transmission capacity is large, the plurality of advantages such as restriction of the system stability limit can be controlled and regulate, are not subjected to the size and Orientation of distance, transmission power fast, only has the loss of conductor resistance, be mainly used in the aspects such as long-distance and large-capacity power transmission, power system interconnection, but its technical difficulty is large, cost is high, powerful direct current exchange conversion device fabrication difficulty, and current power consumption equipment is most for exchanging.Ac transmission can be boosted and step-down by transformer easily, but exchanges in addition the loss of induction reactance in the conventional simple alternating current transmission line except the resistance loss that wire is arranged, and can not do too long distance power transmission, and be incorporated into the power networks and also will consider phase equalization.
The utility model content
In view of the present situation of above-mentioned prior art and the problem of existence, the purpose of this utility model is to provide a kind of pulse transmission system, compatible direct current transportation and simple alternating current transmission of electricity, for direct current transportation from high pressure to low pressure and power consumption equipment extend level and smooth transition be provided, the advantage that is easy to transmit of its existing direct current transportation, the advantage that has again ac transmission to be easy to change.The purpose of this utility model is achieved through the following technical solutions.
The utility model also provides a kind of pulse transmission system, and it comprises:
The three phase full wave rectification module, being used for the three phase sine AC rectification is direct current, wherein contains ripple;
Other various dc energy source conversion equipments are in DC generator, solar DC energy conversion apparatus or the chemical energy dc energy source conversion equipment more than one;
Sending end direct current-pulses switch module, the direct current, the direct current with ripple after the rectification of three phase full wave rectification module that are used for various dc energy source conversion equipments are exported convert frequency to and are higher than the adjustable pulse of power frequency and frequency and duty ratio;
The sending end pulse transformer is used for the voltage level conversion is carried out in the pulse that is higher than work frequency of direct current-pulses switch module output, improves the lower voltage electric current;
Sending end high-voltage pulse modular converter is used for the pulse that is higher than work frequency of sending end pulse transformer output is changed, and makes it become frequency and is lower than the adjustable pulse of power frequency and frequency and duty ratio or direct current with reduction line loss, is beneficial to Energy Transfer;
Transmission line is used for pulse or direct current that transmission sending end high-voltage pulse modular converter is exported;
Receiving end high-voltage pulse modular converter, the direct current or the pulses switch that are used for Transmission Lines are that frequency is higher than the adjustable pulse of power frequency and frequency and duty ratio;
The receiving end pulse transformer is used for the voltage level conversion is carried out in the pulse of receiving end high-voltage pulse modular converter output, reduces voltage, satisfies the voltage request of power consumption equipment or low voltage electric network;
Receiving end action of low-voltage pulse modular converter, the pulses switch that is used for the output of receiving end pulse transformer is power frequency pulse or the pulse equivalent with the power frequency sine.
Further optimize, frequency and the duty specific energy of the pulse of sending end direct current-pulses switch module and the output of receiving end action of low-voltage pulse modular converter are adjusted according to electricity consumption situation, transmission line, converting equipment and power consumption equipment parameter.
Further optimization, also comprise low-voltage electricity transmission line, be used for being transported to power consumption equipment with the power frequency pulse of receiving end action of low-voltage pulse modular converter output or with the sinusoidal equivalent pulse of power frequency.
Further optimize, described other various dc energy source conversion equipments are more than one in DC generator, solar DC energy conversion apparatus or the chemical energy dc energy source conversion equipment.
The electric power distribution of above-mentioned transmission system: at sending end, the three phase sine AC rectification of electrical network or generator output is become to contain the direct current of ripple, and the direct current of direct current network and other various dc energy source conversion equipments outputs is converted into frequency with the described direct current that contains ripple and is higher than the adjustable pulse of power frequency and frequency and duty ratio; The conversion of voltage level is carried out in pulse after utilizing pulse transformer to conversion, improves the lower voltage electric current; After the pulse after the voltage level conversion is through conversion, become direct current or be lower than power frequency and pulse that frequency is adjustable with duty ratio, be transported to by transmission line again and be subjected to electricity regional; At receiving end, the pulses switch that the direct current that transmission line is transported or frequency and duty ratio are adjustable becomes frequency to be higher than the pulse of power frequency, the conversion of voltage level is carried out in pulse after utilizing pulse transformer to conversion, reduce voltage to satisfy the requirement of power consumption equipment, pulse after voltage level conversion is changed, become the power frequency pulse or with the pulse of the sinusoidal equivalence of power frequency for the user.
Further, described pulse frequency and the duty specific energy that is higher than work frequency that converts at sending end or receiving end adjusted according to electricity consumption situation, transmission line, converting equipment and power consumption equipment parameter.
The pulse that the frequency of further, carrying by transmission line at sending end and duty ratio are adjustable is positive pulse, negative pulse or positive negative pulse stuffing.
Further, at sending end, the conversion of described voltage level is realized by the sending end pulse transformer.
Further, at receiving end, the conversion of described voltage level is realized by the receiving end pulse transformer.
Further, described other various dc energy source conversion equipments are more than one in DC generator, solar DC energy conversion apparatus or the chemical energy dc energy source conversion equipment.
Compared with prior art, the utlity model has following advantage and technique effect:
Mutual conversion between direct current and the pulse is easier to realize that direct current is converted to the adjustment that pulse only need be controlled the conducting of the complete controlled power electronic device such as GTO, IGBT, IGCT and can realize easily frequency and the duty ratio of pulse deadline; Positive negative pulse stuffing is converted to direct current and can realizes by one way conducting device and filter capacitor; Conversion between high-frequency impulse and the low-frequency pulse by complete controlled power electronic device such as control GTO, IGBT, IGCT conducting and cut-off and switch positive and negative path and can realize;
The advantage that the existing direct current transportation of the utility model is easy to transmit, loss is low has again the advantage that the simple alternating current transmission of electricity is easy to carry out voltage transitions and control;
The utility model is for providing a kind of intermediate state between direct current transportation and the ac transmission, can compatible alternating current-direct current electrical network, simple alternating current electrical network and most power consumption equipments, for direct current transportation from high pressure to low pressure and power consumption equipment extend level and smooth transition be provided.
Description of drawings
Fig. 1 is the structural representation of pulse transmission system.
Fig. 2 is the main circuit structural representation of each module in the pulse transmission system.
Embodiment
Below in conjunction with accompanying drawing and example implementation of the present utility model is described further.
Be pulse transmission system structural representation such as Fig. 1, comprise the three phase full wave rectification module, sending end direct current-pulses switch module, sending end pulse transformer, sending end high-voltage pulse modular converter, transmission line, receiving end high-voltage pulse modular converter, receiving end pulse transformer and the receiving end action of low-voltage pulse modular converter that connect in turn.1 is the three phase sine AC network among Fig. 1; 2 is generating set, the three phase sine alternating current of output; The main circuit structure of three phase full wave rectification module 3 as shown in Figure 2, comprise full-control type semiconductor device, converter valve (V1, V2, V3, V4, V5, V6) and filtering, control and the protective circuit parts such as GTO, IGBT, IGCT, being used for the three phase sine AC rectification is direct current with ripple; 4 is the direct current of the various energy conversion apparatus outputs such as direct current network or solar energy; The main circuit structure of sending end direct current-pulses switch module 5 as shown in Figure 2, comprise full-control type semiconductor (V7, V8) and control and the protective circuit parts such as GTO, IGBT, IGCT, conducting and order deadline easily polarity, frequency and the duty ratio of control impuls by control (V7, V8), be used for converting the direct current with ripple after direct current network or the rectification to pulse that frequency is higher than power frequency, its frequency and duty ratio can be according to parameter adjustments such as electricity consumption situation, transmission line, converting equipment and power consumption equipments; Sending end pulse transformer 6 is used for the voltage level conversion is carried out in the pulse of sending end direct current-pulses switch module 5 outputs, improves the lower voltage electric current; The main circuit structure of sending end high-voltage pulse modular converter 7 as shown in Figure 2, comprise GTO, IGBT, the full-control type semiconductor device such as IGCT (V9, V10, V11, V12, V13, V14, V15, V16), one way conducting device and filtering thereof, control and protection part, V9 wherein, V10, V11, V12 consists of one group of full-bridge rectification, V13, V14, V15, V16 consists of one group of full-bridge rectification, by two groups of guiding paths of putting the job order control impuls of bridges in order high-frequency impulse is converted to low-frequency pulse, the pulse of pulse transformer 6 outputs is changed, make it become the pulse or the direct current that are lower than work frequency and be beneficial to Energy Transfer, reduce line loss; 8 is transmission line, is used for pulse or the direct current of sending end high-voltage pulse modular converter 7 outputs; The main circuit structure of receiving end high-voltage pulse modular converter 9 as shown in Figure 2, partly formed by the full-control type semiconductor device (V25, V26, V27, V28, V29, V30) such as GTO, IGBT, IGCT and filtering, control and protection, wherein V27, V28, V29, V30 are full-bridge rectification, the pulses switch that is used for transmission line is carried is direct current, conducting by control V25, V26 with deadline order direct current or low-frequency pulse are converted to high-frequency impulse, the direct current or the pulses switch that are used for transmission line 8 is transmitted are the pulse that frequency is higher than power frequency; Receiving end pulse transformer 10 is used for the voltage level conversion is carried out in the pulse of receiving end high-voltage pulse modular converter 9 outputs, reduces voltage, satisfies the voltage levvl of power consumption equipment or low voltage electric network; Receiving end action of low-voltage pulse modular converter 11 main circuit structures are shown in the module 11 of Fig. 2, by GTO, IGBT, the full-control type semiconductor device such as IGCT (V17, V18, V19, V20, V21, V22, V23, V24), one way conducting device and filtering thereof, control forms with the protection part, V17 wherein, V18, V19, V20 consists of one group of full-bridge rectification, V21, V22, V23, V24 consists of one group of full-bridge rectification, by two groups of guiding paths of putting the job order control impuls of bridges in order high-frequency impulse is converted to power frequency pulse or the pulse equivalent with the power frequency sine, the pulses switch that is used for pulse transformer 10 outputs is power frequency pulse or the pulse equivalent with the power frequency sine; 12 is low-voltage electricity transmission line, is used for being transported to power consumption equipment with the power frequency pulse of receiving end action of low-voltage pulse modular converter 11 outputs or with the sinusoidal equivalent pulse of power frequency, for the user.
A reasonable execution mode of the present invention is: with the alternating current of the three phase sine alternating current of generating set 2 output or three phase sine AC network through 3 rectifications of three phase full wave rectification module after input direct-current-pulses switch module 5, also direct current can be input to sending end direct current-pulses switch module 5, sending end direct current-pulses switch module 5 converts direct current to pulse that frequency is higher than power frequency, be beneficial to filtering, reduce the volume of transformer, and formation generating positive and negative voltage, by sending end high-voltage pulse modular converter 7 high-frequency impulse is converted to the low-frequency pulse that frequency is lower than power frequency again, to reduce the circuit loss, convert low-frequency pulse to high-frequency impulse by receiving end high-voltage pulse modular converter 9, reduce voltage by pulse transformer 10, again receiving end action of low-voltage pulse modular converter 11 is converted to power frequency pulse or the pulse equivalent with the power frequency sine with high-frequency impulse, electricity supply and use equipment uses.
The invention provides the intermediateness of a kind of direct current transportation and ac transmission, compatible alternating current-direct current electrical network and power consumption equipment are for direct current transportation provides transition to low-pressure end and power consumption equipment extension.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (4)
1. pulse transmission system is characterized in that comprising:
The three phase full wave rectification module, being used for the three phase sine AC rectification is direct current, wherein contains ripple;
Other dc energy source conversion equipments;
Sending end direct current-pulses switch module, the direct current, the direct current with ripple after the rectification of three phase full wave rectification module that are used for various dc energy source conversion equipments are exported convert frequency to and are higher than the adjustable pulse of power frequency and frequency and duty ratio;
The sending end pulse transformer is used for the voltage level conversion is carried out in the pulse that is higher than work frequency of direct current-pulses switch module output, improves the lower voltage electric current;
Sending end high-voltage pulse modular converter is used for the pulse that is higher than work frequency of sending end pulse transformer output is changed, and makes it become frequency and is lower than the adjustable pulse of power frequency and frequency and duty ratio or direct current;
Transmission line is used for pulse or direct current that transmission sending end high-voltage pulse modular converter is exported;
Receiving end high-voltage pulse modular converter, the direct current or the pulses switch that are used for Transmission Lines are that frequency is higher than the adjustable pulse of power frequency and frequency and duty ratio;
The receiving end pulse transformer is used for the voltage level conversion is carried out in the pulse of receiving end high-voltage pulse modular converter output, reduces voltage, satisfies the voltage request of power consumption equipment or low voltage electric network;
Receiving end action of low-voltage pulse modular converter, the pulses switch that is used for the output of receiving end pulse transformer is power frequency pulse or the pulse equivalent with the power frequency sine.
2. pulse transmission system according to claim 1 is characterized in that frequency and the duty ratio of the pulse of sending end direct current-pulses switch module and receiving end action of low-voltage pulse modular converter output adjusted according to electricity consumption situation, transmission line, converting equipment and power consumption equipment parameter.
3. pulse transmission system according to claim 1 characterized by further comprising low-voltage electricity transmission line, is used for being transported to power consumption equipment with the power frequency pulse of receiving end action of low-voltage pulse modular converter output or with the sinusoidal equivalent pulse of power frequency.
4. pulse transmission system according to claim 1 is characterized in that described other dc energy source conversion equipments are more than one in DC generator, solar DC energy conversion apparatus or the chemical energy dc energy source conversion equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308018 CN202663128U (en) | 2012-06-28 | 2012-06-28 | Pulse power transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308018 CN202663128U (en) | 2012-06-28 | 2012-06-28 | Pulse power transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663128U true CN202663128U (en) | 2013-01-09 |
Family
ID=47458007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308018 Expired - Lifetime CN202663128U (en) | 2012-06-28 | 2012-06-28 | Pulse power transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202663128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709932A (en) * | 2012-06-28 | 2012-10-03 | 谢宝忠 | Pulse transmission method and pulse transmission system |
-
2012
- 2012-06-28 CN CN 201220308018 patent/CN202663128U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709932A (en) * | 2012-06-28 | 2012-10-03 | 谢宝忠 | Pulse transmission method and pulse transmission system |
| CN102709932B (en) * | 2012-06-28 | 2014-10-29 | 谢宝忠 | Pulse transmission method and pulse transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201590771U (en) | Multipurpose large-power controllable power source | |
| CN102780416B (en) | Modularization-based multi-level converter flexible direct current transmission device and system thereof | |
| CN103269083B (en) | Multi-terminal high-voltage direct-current power transmission system | |
| CN102130611A (en) | Power electronic rectification transformer | |
| CN105978370B (en) | A kind of sinusoidal power transmission method improving electric power electric transformer power density | |
| CN103427657A (en) | High-voltage DC-DC conversion device | |
| CN103715930A (en) | Method for increasing capacity of flexible direct-current power transmission system and apparatus thereof | |
| CN104377720A (en) | Direct-current transmission current control method based on MMC converter station | |
| CN104993713A (en) | Control method for double PWM solid-state transformer | |
| CN104601003A (en) | Power electronic transformer based on modular multilevel converter | |
| CN103051219A (en) | Cascaded converter based on single-level power converting module | |
| CN103427658A (en) | High-voltage DC-DC conversion device based on multi-winding transformer | |
| CN102664546A (en) | Five-level current transformation topological structure with bi-directional power switch and applications thereof | |
| CN101574935A (en) | Module combined power quality conditioning system for tractive power supply network | |
| CN102904271B (en) | A kind of traction contact line | |
| CN204145305U (en) | A kind of novel DC-AC-DC converter being applied to high voltage direct current transmission | |
| WO2012126306A1 (en) | Topology for lightweight dc electrical transmission system | |
| CN202586797U (en) | Five-level variable-current topological structure with bidirectional power switches and application thereof | |
| CN102738820B (en) | Power transmission system for improving transmission capability of alternating-current circuit through using voltage source current converting technology | |
| CN203896199U (en) | Large-power high-efficiency energy-saving soft-melting power supply based on series-parallel type high-voltage frequency conversion technology | |
| CN103441676A (en) | Modularized device for conversion between high-voltage direct current and direct current | |
| CN203722484U (en) | 1750-V/3300-V dual-voltage three-level mining explosion-proof frequency conversion device | |
| CN202663128U (en) | Pulse power transmission system | |
| CN204131408U (en) | A kind of MMC type commutator transformer based on multi winding transformer coupling | |
| CN217545902U (en) | High-power phase-shifting chopper power supply for hydrogen production by water electrolysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130109 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |