CN203193342U - DSP-based solar charge comprehensive protection controller - Google Patents
DSP-based solar charge comprehensive protection controller Download PDFInfo
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- CN203193342U CN203193342U CN2013202057522U CN201320205752U CN203193342U CN 203193342 U CN203193342 U CN 203193342U CN 2013202057522 U CN2013202057522 U CN 2013202057522U CN 201320205752 U CN201320205752 U CN 201320205752U CN 203193342 U CN203193342 U CN 203193342U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The utility model relates to a DSP-based solar charge comprehensive protection controller. The controller comprises a power supply module, a DSP module, a storage battery voltage detection circuit module, a temperature detection module, a solar cell panel charge control module, a load current detection and output control module, a keyboard input and display module, a serial port communication module and a GPRS module, wherein the storage battery voltage detection circuit module, the temperature detection module, the solar cell panel charge control module, the load current detection and output control module, the keyboard input and display module, the serial port communication module and the GPRS module are connected with the DSP module in a communication manner respectively. The controller has the advantages that: multiple functions are integrated into the controller; requirements of different users may be met through the arrangement of varying button functions; and the controller has powerful functions and is free from maintenance, low in cost and easy to install.
Description
Technical field
The utility model relates to the control device of electric power system applied technical field, relates in particular to a kind of based on DSP solar recharging integrated protection controller.
Background technology
Solar energy is as a kind of environmental protection, green new forms of energy, and the whole world is all actively being studied the development and utilization of solar energy widely at present.In China, become the important content of national sustainable development strategy based on the development and use of the new forms of energy of solar energy.In effective utilization of solar energy, solar recharging is research field with fastest developing speed in recent years, most active, is one of project that wherein attracts most attention, and promoting and utilizing solar energy is the first-selection of walking the sustainable development path novel energy.Utilize the device of solar recharging also just to become more and more important, but there is function singleness in present most of solar charging controller for electric consumption, and the problem that can't use during insufficient light.Charge mode commonly used has constant voltage charge, modified constant-voltage charge, constant current charge isotype, but do not consider that variation of ambient temperature is to the influence of battery charging process, influenced giving full play to and useful life of accumulator property, shorten the useful life of battery greatly, a large amount of maintenance-free batteries was namely scrapped after several years, caused enormous economic loss.
Find through the retrieval to prior art; China's utility model patent number is 200420028253.1 utility model patent; patent name is " intelligent solar charge controller "; this utility model patent has been announced a kind of solar charging controller, and it comprises: charging control, dsp system, storage battery and detection control, load control and several protection constitute.It is according to the charge-discharge characteristic of lead acid accumulator; Utilize the big characteristics of solar cell internal resistance, the method that adopts unique solar cell output and storage battery directly to link to each other, by DSP according to the actual voltage value of the storage battery of detection and preset value relatively after; The duty ratio of change pwm pulse controls the conducting of the high-power MOS tube that is attempted by the solar cell output and the time scale of ending is controlled charging current, has taken full advantage of electric energy, has improved charge efficiency to greatest extent.The weak point of this patent is: can not realize that data remote communicates by letter with host computer.
Summary of the invention
The utility model purpose is to overcome the deficiency of above prior art, provides a kind of based on DSP solar recharging integrated protection controller, specifically has following technical scheme to realize:
Described based on DSP solar recharging integrated protection controller; comprise power module; the DSP module; the accumulator voltage detecting circuit module; temperature detecting module; the solar panel charge control module; load current detects and output control module; keyboard input and display module; serial communication modular and GPRS module; described accumulator voltage detecting circuit module; temperature detecting module; the solar panel charge control module; load current detects and output control module; keyboard input and display module; serial communication modular and GPRS module are connected with the DSP module communication respectively; described power module is respectively other each module for power supply, and described GPRS module is connected with host computer.
The further design of described integrated protection controller is that described power module is connected to form by AC transformer, rectification circuit, high pass filter, voltage stabilizing circuit and low pass filter.
The further design of described integrated protection controller is; described solar panel charge control module is connected with solar panels and storage battery respectively; comprise slide rheostat; field effect transistor; divider resistance; diode and NPN triode; described solar panel output pin successively with described slide rheostat; the connection of diode and storage battery; another output pin of solar panel connects source electrode and the drain electrode of described field effect transistor successively; another input pin that is connected to storage battery by the grid of field effect transistor forms charge circuit again; the input pin that the output pin of solar panel is corresponding with storage battery is provided with described divider resistance, and the substrate of field effect transistor connects described NPN triode as the output of PWM.
The further design of described integrated protection controller is; described load current detects and output control module comprises field effect transistor; NPN triode and load; the source electrode of described field effect transistor is connected with the emitter of NPN triode and a pin of load respectively with drain electrode; another pin of the grid of described field effect transistor and load, the collector electrode of NPN triode is connected with the substrate of field effect transistor.
The further design of described integrated protection controller is that described field effect transistor is MOSFET.
The further design of described integrated protection controller is that described GPRS module is ME3000.
The further design of described integrated protection controller is that described temperature detecting module is the AD590 detection module.
Advantage of the present utility model is as follows:
System realizes single power supply, supply power voltage+3.3 and+5V, make system's operation more reliable and secure; By the solar cell panel voltages of DSP, battery tension, the analysis of sampled signals such as temperature can really realize overcharging, floating charge, overdischarge, the open circuit of storage battery, the too high defencive function of temperature, and realization quick-charge function, control function night, when selection function at night, controller cuts out load by day; When detecting night, open load automatically after postponing a period of time, the timing of unlatching to or monitor daytime, have and close load automatically, timing can be set by time chip; Keyboard is come in and gone out and shown provides good man-machine communication, makes that the man-machine interaction of each display frame is very strong, realizes the operation of hommization summary; Program realizes modularization, can conveniently realize function expansion and maintenance.Serial communication has been realized the remote monitoring of system easily, can realize the modification of Long-distance Control parameter by the expansion of program, can realize distributed control; The utility model can make solar charging controller several multi-functional in one, satisfy different user's requests by keypress function setting, and the utility model is non-maintaining, and volume is little, easily installs, and powerful, cost is low.
Description of drawings
Fig. 1 is described module diagram based on DSP solar recharging integrated protection controller.
Fig. 2 is the circuit diagram of described power module.
Fig. 3 is the circuit diagram of described solar panel charge control module.
Fig. 4 is the circuit diagram of described load current detection and output control module.
Fig. 5 is the circuit diagram of described GPRS module.
Fig. 6 is the circuit diagram of described serial communication modular.
Embodiment
Below in conjunction with accompanying drawing the utility model scheme is elaborated.
Based on DSP solar recharging integrated protection controller; comprise power module; the DSP module; the accumulator voltage detecting circuit module; temperature detecting module; the solar panel charge control module; load current detects and output control module; keyboard input and display module; serial communication modular and GPRS module; the accumulator voltage detecting circuit module; temperature detecting module; the solar panel charge control module; load current detects and output control module; keyboard input and display module; serial communication modular and GPRS module are connected with the DSP module communication respectively; power module is respectively other each module for power supply, and the GPRS module is connected with host computer.In the present embodiment, the DSP module adopts the TMS320F28335 chip, and antijamming capability is strong, is responsible for analysis and the calculating of signal, the action of control peripheral chip.
Power module is connected to form by AC transformer, rectification circuit, high pass filter, voltage stabilizing circuit and low pass filter, for DSP and other devices provide+3.3V and+operating voltage of 5V.
The solar panel charge control module is connected with solar panels and storage battery respectively, comprise slide rheostat, field effect transistor, divider resistance, diode and NPN triode, the solar panel output pin successively with slide rheostat, the connection of diode and storage battery, another output pin of solar panel connects source electrode and the drain electrode of field effect transistor successively, another input pin that is connected to storage battery by the grid of field effect transistor forms charge circuit again, the input pin that the output pin of solar panel is corresponding with storage battery is provided with divider resistance, and the substrate of field effect transistor connects the NPN triode as the output of PWM.As Fig. 3, the 1 pin output of solar panel J1 is connected with charge control module, through slide rheostat, diode D, be connected to the positive port of storage battery then, diode prevents that the polarity of solar panel from connecing and burns storage battery on the contrary that the other end that 2 pins are received storage battery through source electrode and the drain electrode of MOSFET constitutes charge circuit.The output voltage of cell panel is gathered solar cell panel voltages through first input channel that the divider resistance output AIN1 of R1 and R2 formation receives A/D.The 1 pin output of storage battery J2 forms the battery tension Acquisition Circuit through second pin that R4 is input to A/D; The C1 of 1 pin output simultaneously receives load J3 positive terminal such as Fig. 4, charges a battery.The PWM ripple of DSP output ground EDM Generator of Adjustable Duty Ratio is through turning on and off of NPN management and control MOSFET processed.
Load current detects and output control module comprises field effect transistor; NPN triode and load; the source electrode of field effect transistor is connected with the emitter of NPN triode and a pin of load respectively with drain electrode; another pin of the grid of field effect transistor and load; the collector electrode of NPN triode is connected with the substrate of field effect transistor; by pulse modulation technology restriction and control load electric current, realize that overcurrent protection and bearing power detect.Realize switch with MOSFET in the design, MOSFET is voltage control unipolarity mos field effect transistor, and required driving power is less.And MOSFET has only majority carrier to participate in conduction, do not have the recombination time of minority carrier, thereby switching frequency can be very high, is particularly suitable as PWM control charge switch, adopts the P channel mosfet in the design.The conducting voltage Vth of P channel mosfet＜0.When the NPN2 conducting, because the Vce of NPN2 is very little, can think the G utmost point ground connection of Q2, Vgs＜0, when Vin reaches certain value, the Q1 conducting.The field effect transistor of present embodiment all adopts MOSFET.
The display chip of button input and display module adopts the LCD of the LCM128*64 dot matrix band Chinese word library of Taiwan silicon wound company production, internal controller is general ST7920 controller, can realize Chinese character, ASCII character, the demonstration of some system of battle formations Xing ﹑ self-made characters body, this module has the Hang ﹑ 3 line serial multiple interfaces modes of the Hang ﹑ 2 Xian Chuan of the Hang ﹑ 4 Wei Bing of 8 Wei Bing, LCD parallel communication and serial communication, in order to satisfy the real-time requirement of system, adopt parallel passing through, improve the response speed of chip, the Liquid Crystal Module parallel interface is connected with TMS320F28335, do not need to drive, can directly link to each other.
The GPRS module transfers to information such as state, time, voltage, load state and the charging and discharging state of field data, protection definite value, logout, communication state and shows in the background monitoring software; simultaneously can discharge and recharge work according to the storage battery of actual conditions at remote control scene, backstage; also can directly make amendment to accumulator cell charging and discharging parameter and protection definite value on the backstage, realize wireless bidirectional communication.The GPRS module ME3000 of emerging company during present embodiment adopts directly is connected the direct exchange of realization data by its UART mouth with the UART mouth of DSP.Data are at GPRS module process coding; after the modulation; data transfer data on the server on backstage by the form of GPRS network with packet; the user obtains the information of on-the-spot operational factor by access server institute's IP address allocated and port numbers; the GPRS module is with the state of field data; time; voltage; load state and charging and discharging state; the protection definite value; logout; information such as communication state transfer in the background monitoring software and show; simultaneously can discharge and recharge work according to the storage battery of actual conditions at remote control scene, backstage; also can directly make amendment to accumulator cell charging and discharging parameter and protection definite value on the backstage, realize wireless bidirectional communication.。
Ambient temperature detection module, temperature sensor adopt AD590 to detect the battery environment temperature, and output current is directly proportional with Kelvin, and volume is little, and temperature sensor easy to use can be realized the temperature-compensating of temperature protection and float charge voltage.Along with temperature raises, the final output voltage of lead accumulator will reduce, and when temperature raise, fixing float charge voltage may cause the generation of pernicious gas, can cause the charge in batteries deficiency and cross when hanging down in temperature.Temperature-compensating makes controller reduce float charge voltage automatically when temperature is too high, and temperature is crossed automatic rising float charge voltage when hanging down.The AD590 output current is directly proportional with Kelvin, output 0A during 0 ° of temperature of beginning, 1 ° of electric current of the every rising of beginning temperature increases 1uA, wherein Kelvin is called absolute temperature again, equal Celsius temperature and add 273. this temperature sensing effective temperature-measuring ranges-55～150 ℃ and Kelvin and centigrade pass are the open type temperature, adoptable power range is 4～30V.Resistance of AD590 interface series connection is ground connection, can produce 10*(273.2+T ℃) mV, for fear of load effect, the buffer that this voltage constitutes through an operational amplifier, at the process subtracter, amplifier becomes output: the voltage signal of 0～2V, so just non electrical quantity is converted to electric weight, and be input to the 4th analog input channel of A/D.
Serial communication modular is uploaded host computer with the operational factor of system, realizes remote monitoring.Present embodiment is selected the DB9 connector, behind the acquisition serial communication circuit module data, is processed into 9 signals of asynchronous communication, adopts direct-connected mode, and communicating pair all can be treated as data terminal equipment, uses the RS-232 agreement of standard.For data, the level of logical zero is higher than-3V, and the level of logical one is lower than+3V; The logic state regulation of representing with the TTL high-low level is different, in order to connect with the TTL device of computer interface or terminal, must carry out carrying out between EIA-RS-232C and the TTL circuit conversion of level and logical relation, use the MAX232 chip can finish TTL to the conversion of EIA bidirectional level.
Compared with prior art, the utlity model has following characteristics: system realizes single power supply, supply power voltage+3.3 and+5V, make system's operation more reliable and secure; By the solar cell panel voltages of DSP, battery tension, the analysis of sampled signals such as temperature can really realize overcharging, floating charge, overdischarge, the open circuit of storage battery, the too high defencive function of temperature, and realization quick-charge function, control function night, when selection function at night, controller cuts out load by day; When detecting night, open load automatically after postponing a period of time, the timing of unlatching to or monitor daytime, have and close load automatically, timing can be set by time chip; Keyboard is come in and gone out and liquid crystal display provides good man-machine communication, makes that the man-machine interaction of each display frame is very strong, realizes the operation of hommization summary; Program realizes modularization, can conveniently realize function expansion and maintenance.Serial communication has been realized the remote monitoring of system easily, can realize the modification of Long-distance Control parameter by the expansion of program, can realize distributed control; The utility model can make solar charging controller several multi-functional in one, satisfy different user's requests by keypress function setting, and the utility model is non-maintaining, and volume is little, easily installs, and powerful, cost is low.
Claims (7)
1. one kind based on DSP solar recharging integrated protection controller; it is characterized in that; comprise power module; the DSP module; the accumulator voltage detecting circuit module; temperature detecting module; the solar panel charge control module; load current detects and output control module; keyboard input and display module; serial communication modular and GPRS module; described accumulator voltage detecting circuit module; temperature detecting module; the solar panel charge control module; load current detects and output control module; keyboard input and display module; serial communication modular and GPRS module are connected with the DSP module communication respectively; described power module is respectively other each module for power supply, and described GPRS module is connected with host computer.
2. integrated protection controller according to claim 1 is characterized in that, described power module is connected to form by AC transformer, rectification circuit, high pass filter, voltage stabilizing circuit and low pass filter.
3. integrated protection controller according to claim 1; it is characterized in that; described solar panel charge control module is connected with solar panels and storage battery respectively; comprise slide rheostat; field effect transistor; divider resistance; diode and NPN triode; described solar panel output pin successively with described slide rheostat; the connection of diode and storage battery; another output pin of solar panel connects source electrode and the drain electrode of described field effect transistor successively; another input pin that is connected to storage battery by the grid of field effect transistor forms charge circuit again; the input pin that the output pin of solar panel is corresponding with storage battery is provided with described divider resistance, and the substrate of field effect transistor connects described NPN triode as the output of PWM.
4. integrated protection controller according to claim 1; it is characterized in that; described load current detects and output control module comprises field effect transistor; NPN triode and load; the source electrode of described field effect transistor is connected with the emitter of NPN triode and a pin of load respectively with drain electrode; another pin of the grid of described field effect transistor and load, the collector electrode of NPN triode is connected with the substrate of field effect transistor.
5. according to claim 3 or 4 described integrated protection controllers, it is characterized in that described field effect transistor is MOSFET.
6. integrated protection controller according to claim 1 is characterized in that, described GPRS module is ME3000.
7. integrated protection controller according to claim 1 is characterized in that, described temperature detecting module is the AD590 detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013202057522U CN203193342U (en) | 2013-04-23 | 2013-04-23 | DSP-based solar charge comprehensive protection controller |
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| CN2013202057522U CN203193342U (en) | 2013-04-23 | 2013-04-23 | DSP-based solar charge comprehensive protection controller |
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| CN203193342U true CN203193342U (en) | 2013-09-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554983A (en) * | 2016-01-20 | 2016-05-04 | 鲁东大学 | Embedded system based solar streetlamp charging control apparatus |
| CN111478446A (en) * | 2020-05-07 | 2020-07-31 | 杭州思顺电子科技有限公司 | Power supply module |
-
2013
- 2013-04-23 CN CN2013202057522U patent/CN203193342U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554983A (en) * | 2016-01-20 | 2016-05-04 | 鲁东大学 | Embedded system based solar streetlamp charging control apparatus |
| CN111478446A (en) * | 2020-05-07 | 2020-07-31 | 杭州思顺电子科技有限公司 | Power supply module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20160423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |