CN205105113U - PWM rectifier modularization inductance board PCB subassembly - Google Patents
PWM rectifier modularization inductance board PCB subassembly Download PDFInfo
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- CN205105113U CN205105113U CN201520805469.2U CN201520805469U CN205105113U CN 205105113 U CN205105113 U CN 205105113U CN 201520805469 U CN201520805469 U CN 201520805469U CN 205105113 U CN205105113 U CN 205105113U
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- inductance
- power
- pwm rectifier
- circuit
- board pcb
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Abstract
The utility model discloses a PWM rectifier modularization inductance board PCB subassembly, this subassembly circuit structure is the LCL type, is the core simulation subassembly of PWM rectifier. PWM rectifier modularization inductance board PCB subassembly is including big inductance, little inductance, middle electric capacity, big power relay, starting resistance, control relay, control circuit and terminal, heavy current input/output terminal etc.. This inductance board PCB subassembly LCL power circuit that has integrateed to and the control circuit of relay, voltage sampling circuit, the circuit is got to the power. This inductance board PCB subassembly can make the simplification that becomes of the power structure of original complicacy, makes the structure of assembling of single original components of a whole that can function independently become integrated modularization, has saved wiring in the middle of a large amount of, compact structure, and the installation fastening is reliable, convenient to use. Adopt novel PWM rectifier modularization inductance board PCB subassembly, provide LCL main circuit and control circuit's general solution, can reduce the cost and the volume of converter, improved the maintainability of product, be favorable to large -scale production.
Description
Technical field
The utility model relates to a kind of modularized inductance plate PCB assembly for being applied in the power electronics such as photovoltaic, wind-powered electricity generation industry in PWM rectifying device.
Background technology
In recent years, under the vigorously advocating of new forms of energy theory, the novel electric power electric device such as photovoltaic generation, wind power generation, reactive power compensation is used widely gradually in worldwide.PWM rectifier is then the core circuit of these power electronic equipments.
Conventional connection methods between PWM rectifier and electrical network is by L filter.And the high order harmonic component composition adopting LCL filtering can effectively reduce in electric current, when lower than resonance frequency, LCL filter can regard the L filter that inductance value is 2 inductance sums as, and it is less than the inductance value of L filtering, therefore LCL filtering can adopt relatively little filter element, reduces filter element volume.Therefore LCL filter adopts less inductance can obtain higher high-frequency harmonic attenuation characteristic, makes PWM rectifier input current be high quality sine wave, is considered to optimal filter topologies in Large Copacity application.
For a long time, whole LCL power circuit is installed according to split-type design, and wiring is complicated, serious to other circuit electromagnetic interference, maintainable poor.The technique of whole LCL power circuit restricts PWM rectification circuit for a long time to high-power, small size, and high power density develops.
The utility model, for this problem, proposes a kind of PWM rectifier modularized inductance plate PCB modular construction technique.This (PCC) power clear in structure, all circuit adopt PCB principle design, without any wiring, install reliably compact, do not have maintenance.Electric property is superior simultaneously, and electromagnetic interference is very little.Also be integrated with PWM rectifier soft starting circuit, major loop Control, the functions such as voltage source sampling, enormously simplify power circuit design simultaneously.
Utility model content
The utility model relates to provides a kind of PWM rectifier modularized inductance plate PCB modular construction technique.Object is to provide a kind of universal solution of inductance plate PCB assembly.The electric superior performance of this inductance plate PCB assembly simultaneously, electromagnetic interference is very little, is also integrated with PWM rectifier soft starting circuit, major loop Control, and the functions such as voltage source sampling, enormously simplify PWM rectifier power circuit design.
A kind of PWM rectifier modularized inductance plate PCB assembly comprises High-current output interface (1), big current input interface (2), Control interface (3), power supply power taking interface (4), LCL power circuit (A), major loop relay (8), control relay (9) and soft start resistance (10), all devices are all welded on PCB, and input/output port can conveniently directly be connected with copper bar.
LCL power circuit (A), it is characterized in that, comprise large inductance value power inductance (5), filter capacitor (7), little inductance value power inductance (6), three components and parts all design according to modular thinking, and different capacity grade can be upgraded by connection in series-parallel the power electrical parameter of components and parts.
Power supply power taking interface (4), is characterized in that, can sample single-phase voltage to controlling Power supply, also can as control signal voltage sample.
Control interface (3), is characterized in that, soft start loop control signal, ensures whole power apparatus clean boot.
Advantageous Effects of the present utility model is: this (PCC) power clear in structure, and all circuit adopt PCB principle design, install reliably compact.Electric property is superior simultaneously, and electromagnetic interference is very little.Also be integrated with PWM rectifier soft starting circuit, major loop Control, the functions such as voltage source sampling simultaneously.This (PCC) power is easy to use, improves the overall performance of PWM rectifier, reduces production cost, be convenient to large-scale production.
Accompanying drawing explanation
Fig. 1 is the utility model PWM rectifier modularized inductance plate PCB assembly electrical schematic diagram;
Fig. 2 is a kind of PWM rectifier modularized inductance of the utility model plate PCB modular construction schematic diagram;
In figure: High-current output interface (1), big current input interface (2), Control interface (3), power supply power taking interface (4), large inductance value power inductance (5), little inductance value power inductance (6), filter capacitor (7), major loop relay (8), control relay (9), soft start resistance (10), LCL power circuit (A).
Embodiment
Below in conjunction with Figure of description and embodiment, progressive explanation is done to the present invention.
A kind of new PWM rectifier module inductance plate PCB components, this (PCC) power comprises and being made up of High-current output interface (1), big current input interface (2), Control interface (3), power supply power taking interface (4), large inductance value power inductance (5), little inductance value power inductance (6), filter capacitor (7), major loop relay (8), control relay (9) and soft start resistance (10) etc.Three-phase PWM rectification circuit needs 3 modularized inductance plate PCB assemblies, accesses ABC phase respectively.
A, big current input interface (2) access corresponding live wire and zero line in the input of PWM rectifier three-phase respectively, fix with M8 bolt;
B, buffering soft start loop: control relay (9) and soft start resistance (10) with after the series connection of PCB cabling again with major loop relay (8), Control interface (3) control major loop relay (8) and control relay (9);
C, little inductance value power inductance (6) and large inductance value power inductance (5), mid point parallel connection access filter capacitor (7).According to the needs of power, can to inductance, electric capacity carries out power expansion, inductance capacitance parallel running.
D, High-current output interface (1) access large inductance value power inductance (5) and zero line respectively, be connected, fix with M8 bolt with inverter;
E, temperature sensor (6) comprise and being made up of 3 thermistors, and it is by directly in heat sink assembly (8) position that temperature is the highest, and the interface of reserved access intelligent controller;
F, cooling fan assembly (9) are fixed on the side of heat sink assembly (8), are close to the sidewall of radiator, without additional air resistance.2 liang of power lines drawn by blower fan, control by fan power.
Claims (4)
1. a PWM rectifier modularized inductance plate PCB assembly, it is characterized in that, this assembly comprises High-current output interface (1), big current input interface (2), Control interface (3), power supply power taking interface (4), LCL power circuit (A), major loop relay (8), control relay (9) and soft start resistance (10), all devices are all welded on PCB, and input/output port can conveniently directly be connected with copper bar.
2. a kind of PWM rectifier modularized inductance plate PCB assembly according to claim 1, it is characterized in that, described LCL power circuit (A) comprises large inductance value power inductance (5), filter capacitor (7), little inductance value power inductance (6), three components and parts all design according to modular thinking, and different capacity grade can be upgraded by connection in series-parallel the power electrical parameter of components and parts.
3. a kind of PWM rectifier modularized inductance plate PCB assembly according to claim 1, is characterized in that, described power supply power taking interface (4) can sample single-phase voltage to controlling Power supply, also can as control signal voltage sample.
4. a kind of PWM rectifier modularized inductance plate PCB assembly according to claim 1, it is characterized in that, described Control interface (3) soft start loop control signal, ensures whole power apparatus clean boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805469.2U CN205105113U (en) | 2015-10-15 | 2015-10-15 | PWM rectifier modularization inductance board PCB subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520805469.2U CN205105113U (en) | 2015-10-15 | 2015-10-15 | PWM rectifier modularization inductance board PCB subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205105113U true CN205105113U (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520805469.2U Expired - Fee Related CN205105113U (en) | 2015-10-15 | 2015-10-15 | PWM rectifier modularization inductance board PCB subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205105113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512410A (en) * | 2018-06-01 | 2018-09-07 | 上海寰晟电力能源科技有限公司 | A kind of AC power soft starting device |
-
2015
- 2015-10-15 CN CN201520805469.2U patent/CN205105113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512410A (en) * | 2018-06-01 | 2018-09-07 | 上海寰晟电力能源科技有限公司 | A kind of AC power soft starting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20171015 |