CN105743117A - DC electronic load based on a DSP framework - Google Patents
DC electronic load based on a DSP framework Download PDFInfo
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- CN105743117A CN105743117A CN201410743608.3A CN201410743608A CN105743117A CN 105743117 A CN105743117 A CN 105743117A CN 201410743608 A CN201410743608 A CN 201410743608A CN 105743117 A CN105743117 A CN 105743117A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model relates to a DC electronic load based on a DSP framework. Two ends of the DC electronic load are respectively connected with a DC power supply and a power grid; the DC electronic load comprises a DC/DC conversion circuit, a three-phase inverter circuit, a DSP master control assembly and a display control assembly; the DC/DC conversion circuit is connected with the power grid via the three-phase inverter circuit; and the display control assembly is connected with the DC/DC conversion circuit and the three-phase inverter circuit via the DSP master control assembly; the DSP master control assembly controls the input voltage and current of the input terminal of the DC/DC conversion circuit in real time according to a preset control process or a control instruction of the display control assembly, and controls the three-phase inverter circuit to invert DC current into an AC feedback power grid. Compared with the prior art, the electronic load is controlled by using the display control assembly, and control instantaneity can be improved.
Description
Technical field
The present invention relates to a kind of DC Electronic Loads, especially relate to a kind of DC Electronic Loads based on DSP architecture.
Background technology
At present, 30KW DC Electronic Loads display control section implementation on the market has three kinds: liquid crystal press key combination control mode, PC control mode, touch screen control mode.Compared with touch screen control mode combines control mode with liquid crystal press key, there is good human-computer interaction interface, touch-control efficiency height, additionally provide higher security performance, anti-harsh weather performance and wearability.If only with PC control mode, and electronic load has a segment distance from PC, then for operator, be highly inconvenient.
Such as Chinese patent CN102832639B has disclosed a kind of based on type of the presenting electronic load grid-connected inverting system of DSP and control method, including: main circuit and control circuit.Described main circuit includes the Inverter Unit, the output filtration module that are sequentially connected with；Described Inverter Unit is connected with booster system 400VDC outfan, and described output filtration module is connected with utility network；Described control circuit includes fault secure circuit module, current-voltage sampling and signal processing module, human-computer interaction module, DSP embedded system module and high-frequency drive module.But its Inverter Unit is single-phase inversion system, power system capacity is low, is not suitable for that more than 10KW high-power DC power supply is aging, performance test, and its display control section adopts liquid crystal press key combination control mode, and Man machine interaction is poor, control complex operation.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of and control the remarkably productive DC Electronic Loads based on DSP architecture.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of DC Electronic Loads based on DSP architecture, the two ends of described DC Electronic Loads are connected with DC source and electrical network respectively, described DC Electronic Loads includes DC/DC translation circuit, three-phase inverting circuit, DSP master component and display and controls assembly, described DC/DC translation circuit is connected with electrical network by three-phase inverting circuit, and described display is controlled assembly and is connected with DC/DC translation circuit and three-phase inverting circuit respectively by DSP master component；
Described display controls assembly and controls DC/DC translation circuit and three-phase inverting circuit in real time by unidirectional current feedback grid after DC converting and inversion by DSP master component.
Described DC Electronic Loads also includes the A/D data acquisition module for gathering current and voltage data, the outfan of described A/D data acquisition module is connected with DSP master component, and input is connected with the input of DC/DC translation circuit and the outfan of three-phase inverting circuit respectively.
Described DSP master component includes controller and the DC-DC conversion control driving module, inversion control driving module and the communication module that are all connected with controller, described DC-DC conversion controls to drive module to be connected with DC/DC translation circuit, described inversion control drives module to be connected with three-phase inverting circuit, and described communication module controls assembly with display and is connected.
Described controller is the digital signal processor TMS320F2808A of 32.
Described display controls assembly and includes resistive touch screen, and described display is controlled assembly and is connected with DSP master component by RS485 communication cable.
Described DC Electronic Loads also includes remote control terminal, and this remote control terminal is connected with DSP master component by RS485 communication cable.
Described display controls assembly and includes following interface module:
Passage controls interface module, for each passage is controlled, and checks that DSP master component controls the operation information of assembly and remote control terminal communication with display；
Running status display interface module, for showing the running status of DC Electronic Loads in real time；
Historical data display module, for showing the history run status data of DC Electronic Loads；
Local/remote interface module, for switching by remote control terminal or by showing that controlling assembly enters the operating instructions.
Parameter arranges interface module, is used for arranging DC Electronic Loads operational factor, and described operational factor includes the maximum input voltage of communication baud rate and DC Electronic Loads and maximum input current.
Described running status display interface module includes running state data display unit and the failure condition display unit of DC Electronic Loads.
Described DC/DC translation circuit includes the direct current input filter circuit, BOOST booster circuit and the output filter circuit that are sequentially connected with, and described direct current input filter circuit is connected with DC source, and described output filter circuit is connected with three-phase inverting circuit.
Described three-phase inverting circuit includes the three phase full bridge circuit, ac filter circuit, output isolation transformer and the output control switch that are sequentially connected with, and described three phase full bridge circuit is connected with DC/DC translation circuit, and described output control switch is connected with electrical network.
Compared with prior art, the invention have the advantages that
1) due to have employed display control assembly electronic load is controlled, it is possible to increase the real-time of control, and improve operation control suggestiveness.
2) display control assembly have employed touch screens, and working environment completely isolated to external world is not afraid of dust and steam, therefore has higher security performance, anti-harsh weather performance and good wearability.
3) line traffic control Quality Control assembly includes passage and controls interface mould, running status display interface module, historical data display module, local/remote interface module and parameter and arrange interface module, substantially increases the convenience of operation.
4) owing to controller have employed the digital signal processor TMS320F2808A of 32, this model processor processing speed block, simultaneously peripheral hardware aboundresources have high-precision adc measurement module, therefore can improve the control efficiency of DSP master component.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of DC/DC translation circuit；
Fig. 3 is the structural representation of three-phase inverting circuit；
Wherein: 1, DC source, 2, electrical network, 3, DC/DC translation circuit, 4, three-phase inverting circuit, 5, DSP master component, 6, display controls assembly, 7, A/D data acquisition module, 8, remote control terminal, 31, filter circuit, 32, BOOST booster circuit, 33, output filter circuit, 41, three phase full bridge circuit, 42, ac filter circuit, 43, output isolation transformer, 44, output control switch, 51, controller, 52, DC-DC conversion controls to drive module, 53, inversion control drives module, and 54, communication module.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is carried out premised on technical solution of the present invention, gives detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
A kind of DC Electronic Loads based on DSP architecture, as shown in Figure 1, the two ends of DC Electronic Loads are connected with DC source 1 and electrical network 2 respectively, DC Electronic Loads includes DC/DC translation circuit 3, three-phase inverting circuit 4, DSP master component 5 and display and controls assembly 6, DC/DC translation circuit 3 is connected with electrical network 2 by three-phase inverting circuit 4, and display is controlled assembly 6 and is connected with DC/DC translation circuit 3 and three-phase inverting circuit 4 respectively by DSP master component 5；
Display controls assembly 6 and controls DC/DC translation circuit 3 and three-phase inverting circuit 4 in real time by unidirectional current feedback grid 2 after DC converting and inversion by DSP master component 5.
DC Electronic Loads also includes the A/D data acquisition module 7 for gathering current and voltage data, the outfan of A/D data acquisition module 7 is connected with DSP master component 5, and input is connected with the outfan of the input of DC/DC translation circuit 3 and three-phase inverting circuit 4 respectively.
DSP master component 5 includes controller 51 and the DC-DC conversion control driving module 52, inversion control driving module 53 and the communication module 54 that are all connected with controller 51, DC-DC conversion controls to drive module 52 to be connected with DC/DC translation circuit 3, inversion control drives module 53 to be connected with three-phase inverting circuit 4, and communication module 54 controls assembly 6 with display and is connected.
Controller 51 is the digital signal processor TMS320F2808A of 32.
Display controls assembly 6 and includes resistive touch screen, and display is controlled assembly 6 and is connected with DSP master component 5 by RS485 communication cable.
DC Electronic Loads also includes remote control terminal 8, and this remote control terminal 8 is connected with DSP master component 5 by RS485 communication cable.
Display controls assembly 6 and includes following interface module:
Passage controls interface module, for each passage is controlled, and checks that DSP master component 5 controls the operation information of assembly 6 and remote control terminal 8 communication with display；
Running status display interface module, for showing the running status of DC Electronic Loads in real time；
Historical data display module, for showing the history run status data of DC Electronic Loads；
Local/remote interface module, for switching by remote control terminal 8 or by showing that controlling assembly 6 enters the operating instructions.
Parameter arranges interface module, is used for arranging DC Electronic Loads operational factor, and operational factor includes the maximum input voltage of communication baud rate and DC Electronic Loads and maximum input current.
Running status display interface module includes running state data display unit and the failure condition display unit of DC Electronic Loads.
As in figure 2 it is shown, DC/DC translation circuit 3 includes the direct current input filter circuit 31, BOOST booster circuit 32 and the output filter circuit 33 that are sequentially connected with, direct current input filter circuit 301 is connected with DC source 1, and output filter circuit 33 is connected with three-phase inverting circuit 4.
As shown in Figure 3, three-phase inverting circuit 4 includes the three phase full bridge circuit 41, ac filter circuit 42, output isolation transformer 43 and the output control switch 44 that are sequentially connected with, three phase full bridge circuit 401 is connected with DC/DC translation circuit 3, and output control switch 44 is connected with electrical network 2.
In running, A/D data acquisition module 7 detects that DC/DC translation circuit 2 input current exceedes setting value, DSP master component 5 controls input/output switching, disconnect the connection with DC source 1 and electrical network 2, and control assembly 6 by communication module 54 transmission fault information to display, display controls assembly 6 and shows generation input current over current fault in real time, and points out user to check failure cause.
Claims (10)
1. the DC Electronic Loads based on DSP architecture, the two ends of described DC Electronic Loads are connected with DC source and electrical network respectively, it is characterized in that, described DC Electronic Loads includes DC/DC translation circuit, three-phase inverting circuit, DSP master component and display and controls assembly, described DC/DC translation circuit is connected with electrical network by three-phase inverting circuit, and described display is controlled assembly and is connected with DC/DC translation circuit and three-phase inverting circuit respectively by DSP master component；
Described display controls assembly and controls DC/DC translation circuit and three-phase inverting circuit in real time by unidirectional current feedback grid after DC converting and inversion by DSP master component.
2. a kind of DC Electronic Loads based on DSP architecture according to claim 1, it is characterized in that, described DC Electronic Loads also includes the A/D data acquisition module for gathering current and voltage data, the outfan of described A/D data acquisition module is connected with DSP master component, and input is connected with the input of DC/DC translation circuit and the outfan of three-phase inverting circuit respectively.
3. a kind of DC Electronic Loads based on DSP architecture according to claim 1, it is characterized in that, described DSP master component includes controller and the DC-DC conversion control driving module, inversion control driving module and the communication module that are all connected with controller, described DC-DC conversion controls to drive module to be connected with DC/DC translation circuit, described inversion control drives module to be connected with three-phase inverting circuit, and described communication module controls assembly with display and is connected.
4. a kind of DC Electronic Loads based on DSP architecture according to claim 3, it is characterised in that described controller is the digital signal processor TMS320F2808A of 32.
5. a kind of DC Electronic Loads based on DSP architecture according to claim 1, it is characterised in that described display controls assembly and includes resistive touch screen, described display is controlled assembly and is connected with DSP master component by RS485 communication cable.
6. a kind of DC Electronic Loads based on DSP architecture according to claim 1, it is characterised in that described DC Electronic Loads also includes remote control terminal, this remote control terminal is connected with DSP master component by RS485 communication cable.
7. a kind of DC Electronic Loads based on DSP architecture according to claim 6, it is characterised in that described display controls assembly and includes following interface module:
Passage controls interface module, for each passage is controlled, and checks that DSP master component controls the operation information of assembly and remote control terminal communication with display；
Running status display interface module, for showing the running status of DC Electronic Loads in real time；
Historical data display module, for showing the history run status data of DC Electronic Loads；
Local/remote interface module, for switching by remote control terminal or by showing that controlling assembly enters the operating instructions；
Parameter arranges interface module, is used for arranging DC Electronic Loads operational factor, and described operational factor includes the maximum input voltage of communication baud rate and DC Electronic Loads and maximum input current.
8. a kind of DC Electronic Loads based on DSP architecture according to claim 7, it is characterised in that described running status display interface module includes running state data display unit and the failure condition display unit of DC Electronic Loads.
9. a kind of DC Electronic Loads based on DSP architecture according to claim 1, it is characterized in that, described DC/DC translation circuit includes the direct current input filter circuit, BOOST booster circuit and the output filter circuit that are sequentially connected with, described direct current input filter circuit is connected with DC source, and described output filter circuit is connected with three-phase inverting circuit.
10. a kind of DC Electronic Loads based on DSP architecture according to claim 1, it is characterized in that, described three-phase inverting circuit includes the three phase full bridge circuit, ac filter circuit, output isolation transformer and the output control switch that are sequentially connected with, described three phase full bridge circuit is connected with DC/DC translation circuit, and described output control switch is connected with electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743608.3A CN105743117A (en) | 2014-12-08 | 2014-12-08 | DC electronic load based on a DSP framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743608.3A CN105743117A (en) | 2014-12-08 | 2014-12-08 | DC electronic load based on a DSP framework |
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| CN105743117A true CN105743117A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410743608.3A Pending CN105743117A (en) | 2014-12-08 | 2014-12-08 | DC electronic load based on a DSP framework |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155669A (en) * | 2018-02-11 | 2018-06-12 | 常州博能新能源有限公司 | Energy electronic load device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010154642A (en) * | 2008-12-25 | 2010-07-08 | Hitachi Ltd | Device for protecting power supply circuit of three-phase inverter |
| CN202333835U (en) * | 2011-11-18 | 2012-07-11 | 湖南大学 | High-frequency photovoltaic grid-connected power generation system |
| CN203722251U (en) * | 2013-11-27 | 2014-07-16 | 上海航天有线电厂 | 500KW photovoltaic grid-connected inverter based on touch screen |
-
2014
- 2014-12-08 CN CN201410743608.3A patent/CN105743117A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010154642A (en) * | 2008-12-25 | 2010-07-08 | Hitachi Ltd | Device for protecting power supply circuit of three-phase inverter |
| CN202333835U (en) * | 2011-11-18 | 2012-07-11 | 湖南大学 | High-frequency photovoltaic grid-connected power generation system |
| CN203722251U (en) * | 2013-11-27 | 2014-07-16 | 上海航天有线电厂 | 500KW photovoltaic grid-connected inverter based on touch screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155669A (en) * | 2018-02-11 | 2018-06-12 | 常州博能新能源有限公司 | Energy electronic load device |
| CN108155669B (en) * | 2018-02-11 | 2024-05-28 | 常州博能新能源有限公司 | Energy feedback type electronic load device |
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Application publication date: 20160706 |