CN203151234U - Mobile photovoltaic power generation, off-peak power lithium battery energy storage control system - Google Patents
Mobile photovoltaic power generation, off-peak power lithium battery energy storage control system Download PDFInfo
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- CN203151234U CN203151234U CN2013200793983U CN201320079398U CN203151234U CN 203151234 U CN203151234 U CN 203151234U CN 2013200793983 U CN2013200793983 U CN 2013200793983U CN 201320079398 U CN201320079398 U CN 201320079398U CN 203151234 U CN203151234 U CN 203151234U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model relates to the lithium battery energy storage system field, and especially relates to a mobile lithium battery energy storage control system. The mobile photovoltaic power generation, off-peak power lithium battery energy storage control system comprises a solar cell panel set, a conflux unit, an access switching unit, an energy storage chopping unit, a cell equalizer, an energy storage lithium battery pack and a system controller, and is characterized in that a control contact of the access switching unit is connected with a bidirectional inverter and a power switching unit orderly, and the power switching unit is connected with a power supply network, power loads and the system controller separately; a system computer in the system controller is connected with the conflux unit, the access switching unit, the bidirectional inverter, the energy storage chopping unit, the cell equalizer, a cell temperature detecting unit and the power switching unit separately via Profibus-DP and Modbus on-site buses to form a network intelligent control system. Compared with the prior art, the mobile photovoltaic power generation, off-peak power lithium battery energy storage control system integrates the photovoltaic power generation and the off-peak electricity utilization as one, realizes the photovoltaic power generation and stores when the sunshine is sufficient by daylight, and stores the off-peak power at night.
Description
Technical field
It is the energy-storage system field of energy-storage travelling wave tube that the utility model relates to the lithium battery, particularly a kind of portable photovoltaic generation, low ebb electricity lithium battery energy storage control system.
Background technology
At present because the progress of society, the power consumption surge, petering out of non-renewable energy resources raw material makes people enter the stage that taps a new source of energy, obtained fast development as emerging energies such as wind-powered electricity generation, photovoltaic generations, some of them have realized the use of being incorporated into the power networks, adopt the large-sized photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT) of battery energy storage on probation; Low profile photovoltaic generating and the device that adopts battery energy storage be widespread usage, but its location fixes, and can't satisfy the deficiency of user's movement requirement.The ferric phosphate lithium cell technology is ripe in addition, becomes the substitute of with serious pollution lead acid accumulator, makes battery energy storage be able to large-scale application.
Traditional photovoltaic generation and the device of battery energy storage, result of use are subjected to weather effect very big, can not power when overcast and rainy continuous.And there is the low problem of utilance in the low ebb electricity in the electrical network always, and the low ebb electricity price is about half of common electricity price, has big electrical network to utilize the low ebb electricity by setting up modes such as pumped storage station at present, but does not have extensively universally.The low ebb electricity does not utilize, and this is a very big waste.If can the electricity of electrical network be deposited in the energy-storage battery in low ebb time (23 o'clock～early 7 o'clock) lining, the deficiency of photovoltaic generation when this just can replenish the cloudy day also is a favourable measure that realizes energy-saving and emission-reduction.
In the device of traditional low profile photovoltaic generating charged pool energy storage, its control system adopts analog signal detection and transmission more in addition, and its complex circuit is subject to disturb, and operational reliability is poor, presses for the network intelligence control system of band fieldbus.
Summary of the invention
The purpose of this utility model provides a kind of portable photovoltaic generation, low ebb electricity lithium battery energy storage control system, design a kind of solar electricity generating vehicle, realize that the generating of light harvesting volt, low ebb electricity are used in the lithium battery energy storage of one, adopt digital network intelligence control system, daytime is when sunny, realize photovoltaic generation and storage, store the low ebb electricity night, thereby realize power supplies continuously in 24 hours of user load.
In order to address the above problem, the utility model is realized by the following technical solutions:
A kind of portable photovoltaic generation, low ebb electricity lithium battery energy storage control system, comprise the solar panel group, the unit that confluxes, insert switch unit, energy storage copped wave unit, battery equalizer, energy storage lithium battery group and system controller, one tunnel control contact of described access switch unit links to each other with two-way inverter, electricity consumption switch unit successively, and the electricity consumption switch unit is respectively with power supply network, link to each other with electric loading and system controller; System computerized in the system controller by Profibus-DP and Modbus fieldbus respectively with the unit that confluxes, insert switch unit, two-way inverter, energy storage copped wave unit, battery equalizer, battery temperature detecting unit, electricity consumption switch unit and link to each other the system computerized formation network intelligence control system that also links to each other with alarm, display screen and GPRS wireless communication module respectively.
Be provided with dc fuse, current sensor and the monitoring means that confluxes in the described unit that confluxes, dc fuse and current sensor are connected on the anode output end lead of certain battery tandem successively, and the output current signal of current sensor links to each other with the monitoring means input that confluxes; The described monitoring means that confluxes is the network data acquisition device, the network data acquisition device receive the multichannel current signal and with the system controller communication.
Operation control control electronic switch QF1, QF2 and QF3 open and close in the described access switch unit, and when QF1 and QF2 closure, when QF3 opens, control contact QF11, QF12 are communicated with control contact QF21, QF22 respectively; When QF1 opens, when QF2 and QF3 are closed, control contact QF31, QF32 are communicated with control contact QF21, QF22 respectively;
Comprise embedded microcomputer, keyboard, LCD display, USB interface and RS-485 interface in the described operation control, the switching value output of embedded microcomputer links to each other with switching value output driver element.
Comprise voltage conversion circuit in the described two-way inverter, inverter, filter and two-way circuit control device, the input signal of voltage conversion circuit is taken from the control contact QF11 that inserts switch unit, the direct current output of QF12, when contactor K closes, direct current signal is through capacitor C 1, inductance L 1 and switch transistor T 7 form the pulsation square wave, by switch transistor T 1, T2, T3, T4, T5, the inverter that T6 and capacitor C 2 are formed changes into three-phase alternating current, by inductance L 2, the filter filtering that L3 and capacitor C 3 are formed is by output QF41, QF42, QF43 exports the electricity consumption switch unit to.
The temperature signal that temperature sensor Tn sends in the described battery temperature detecting unit is through pull-up resistor Rn fan-in network data acquisition unit, the network data acquisition device detect and with the system controller communication.
Described network data acquisition device is connected to form successively by signal access unit, signal conversion unit, Isolation Amplifier Module and embedded microcomputer, described Isolation Amplifier Module is made up of electric capacity barrier assembly U1, amplifier U2, resistor network U3, and wherein electric capacity barrier assembly U1 is by electronic switch Kc
11, Kc
12, Kc
21, Kc
22, capacitor C 6, C7 form electronic switch Kc
11, Kc
12, Kc
21, Kc
22Switch between input and output with fixing fast frequency, when detecting voltage, electric current and thermocouple signal, signal is entered by B1, B2, and when detecting thermal resistance signal, signal is entered by B1, B2 and B3, electronic switch Kc
11, Kc
12When switching to input, signal is given capacitor C 6, C7 charging, K switch c
11, Kc
12When switching to output, signal is transferred to amplifier, has realized the isolation of sensor circuit and amplifying circuit; When detecting thermal resistance signal, the voltage signal of thermal resistance enters from B1, B2, give capacitor C 6 chargings, the voltage signal of lead enters from B2, B3, gives capacitor C 7 chargings, because the output ground connection of electronic switch Kc21, voltage on the capacitor C 6 and the voltage on the capacitor C 7 are subtracted each other, offset the influence of part lead to thermal resistance, improved the accuracy of detection of thermal resistance, also realized the isolation of sensor circuit and amplifying circuit;
Embedded microcomputer comprises A/D converter, reference voltage source, dsp controller, temperature sensor, network interface and memory, and reference power source is connected with A/D converter, and A/D converter is connected with dsp controller with address bus AB1 by data/address bus DB1; Dsp controller one end is by data/address bus DB
2With address bus AB
2Be connected with the network interface of band fieldbus function, an end is by data/address bus DB
3With address bus AB
3Be connected with memory; Temperature sensor is connected with dsp controller, is used for measurement thermocouple cold junction ambient temperature and cold junction and compensates or survey its elsewhere temperature automatically; A/D converter receives the output signal V of U2 amplifier
Out
Compared with prior art, the beneficial effects of the utility model are:
1) generating of light harvesting volt, low ebb electricity are used in one, adopt digital network intelligence control system, and realize photovoltaic generation and storage when sunny daytime, stores the low ebb electricity night, thereby realize power supplies continuously in 24 hours of user load.
2) network data acquisition is carried out in the direct current output of each road photovoltaic cell tandem, can realize the automatic conversion of photovoltaic generation and low ebb electricity, can realize the fieldbus function, volume is little, can form network node formula signal acquiring system easily, Isolation Amplifier Module U
1Realize the reliable isolation of high insulation, improved the certainty of measurement of antijamming capability and signal greatly.
3) the lithium battery group has adopted battery equalizer and battery temperature detecting unit, and has introduced the network data acquisition device, realizes in time uploading of lithium battery voltage data, makes system realize Based Intelligent Control, has guaranteed system safety, economy, stable operation simultaneously.
Description of drawings
Fig. 1 is the utility model energy storage control system schematic diagram;
Fig. 2 is system controller schematic diagram among Fig. 1;
Fig. 3 is the unit schematic diagram that confluxes among Fig. 1;
Fig. 4 is the monitoring means schematic diagram that confluxes among Fig. 3;
Fig. 5 inserts the switch unit schematic diagram among Fig. 1;
Fig. 6 is operation control schematic diagram among Fig. 5;
Fig. 7 is two-way inverter schematic diagram among Fig. 1;
Fig. 8 is energy storage copped wave unit schematic diagram among Fig. 1;
Fig. 9 is battery equalizer schematic diagram among Fig. 1;
Figure 10 is energy storage lithium battery 1～8 thermometric wiring schematic diagram;
Figure 11 is energy storage lithium battery 9～16 thermometric wiring schematic diagrams;
Figure 12 is electricity consumption switch unit schematic diagram among Fig. 1;
Figure 13 is the network data acquisition device schematic diagram among Fig. 4 and Fig. 9;
Figure 14 is the signal access unit schematic diagram among Figure 13;
Figure 15 is the signal conversion unit schematic diagram among Figure 13;
Figure 16 isolates the amplifying unit schematic diagram among Figure 13;
Figure 17 is the thermal resistance access state connection layout of Figure 16;
Figure 18 is embedded microcomputer schematic diagram among Figure 13.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
See Fig. 1, Fig. 2, be a kind of portable photovoltaic generation of the utility model, low ebb electricity lithium battery energy storage control system schematic diagram, comprise the solar panel group, the unit that confluxes, insert switch unit, energy storage copped wave unit, battery equalizer, energy storage lithium battery group and system controller, one tunnel control contact of described access switch unit links to each other with two-way inverter, electricity consumption switch unit successively, and the electricity consumption switch unit is respectively with power supply network, link to each other with electric loading and system controller; System computerized in the system controller by Profibus-DP and Modbus fieldbus respectively with the unit that confluxes, insert switch unit, two-way inverter, energy storage copped wave unit, battery equalizer, battery temperature detecting unit, electricity consumption switch unit and link to each other the system computerized formation network intelligence control system that also links to each other with alarm, display screen and GPRS wireless communication module respectively.
The connection plan of energy storage lithium battery group is pressed 220V100AH and two kinds of specification assembly of 220V200AH, wherein 220V100AH lithium ion battery group is in series by 7 groups of modules that are nominally 32V100AH, and the 32V100AH inside modules is in series by 10 monomer 3.2V/100AH lithium batteries;
220V200AH lithium ion battery group is in series by 14 groups of modules that are nominally 16V200AH, and the 16V200AH inside modules is made up of 10 monomer 100AH lithium batteries, and inner connecting way is 2 and 5 strings.
See Fig. 3, Fig. 4, conflux and be provided with dc fuse, current transformer and the monitoring means that confluxes in the unit, the dc fuse summation current transformer is connected on the anode output end lead of certain battery tandem successively, and the output current signal of current transformer links to each other with the monitoring means input that confluxes; The monitoring means that confluxes is the network data acquisition device, the network data acquisition device receive the multichannel current signal and with the system controller communication, per two photovoltaic cells are one group among the embodiment, be divided into 8 groups, 8 inputs of map network data acquisition unit, the network data acquisition device is by independent DC/DC commutator transformer power supply.
See Fig. 5, insert that operation control control electronic switch QF1, QF2 and QF3 open and close in the switch unit, when QF1 and QF2 closure, when QF3 opens, control contact QF11, QF12 are communicated with control contact QF21, QF22 respectively; When QF1 opens, when QF2 and QF3 are closed, control contact QF31, QF32 are communicated with control contact QF21, QF22 respectively, realization by photovoltaic cell to lithium cell charging or by the low ebb electricity of the electrical network handoff functionality to lithium cell charging;
See Fig. 6, comprise embedded microcomputer, keyboard, LCD display, USB interface and RS-485 interface in the operation control, embedded microcomputer is provided with switching value input (open into) and switching value output, the switching value output links to each other with switching value output driver element (leaving driving), realizes the power amplification of switching value.USB interface can be used for the renewal of program.The RS-485 interface is used for the input of curtage signal.
See Fig. 7, comprise voltage conversion circuit in the two-way inverter, inverter, filter and two-way inverter control circuit, the input signal of voltage conversion circuit is taken from the control contact QF11 that inserts switch unit, the direct current output of QF12, when contactor K closes, direct current signal is through capacitor C 1, inductance L 1 and switch transistor T 7 form the pulsation square wave, by switch transistor T 1, T2, T3, T4, T5, the inverter that T6 and capacitor C 2 are formed will change into three-phase alternating current, by inductance L 2, the filter filtering that L3 and capacitor C 3 are formed is by output QF41, QF42, QF43 exports the electricity consumption switch unit to.
See Fig. 8, the function of energy storage copped wave unit is that the direct current signal by control contact QF31, the QF32 output that inserts switch unit is become square wave, to batteries charging, switch transistor T 8, T9, capacitor C 4, C5 and inductance L 4 constitute typical chopper circuit, energy storage copped wave cell controller structure is identical with operation control among Fig. 6 to be embedded microcomputer structure, has network savvy and switching value and analog quantity input/output function simultaneously.
See Fig. 9, battery equalizer comprises battery balanced adjusting driver and network data acquisition device, realize respectively organizing the automatic equalization of the voltage between the lithium battery, avoid because the internal discharge phenomenon that the voltage difference of each group lithium battery causes, each battery balanced adjusting driver can drive 8 lithium batteries, and battery balanced adjusting driver also carries out communication with system controller.
See among Figure 10 that the temperature signal that temperature sensor Tn sends in the battery temperature detecting unit is through pull-up resistor Rn fan-in network data acquisition unit, the network data acquisition device detect and with the system controller communication.Battery 1～8 is the lithium phosphate energy-storage battery, T1～T8 is DS18B20 one-wire bus digital temperature transmitter, the temperature that can realize 8 energy storage lithium batteries detects automatically, avoid the abnormal temperature rise of battery, Vd is power supply, is generally+5V the I/O mouth 1 on the CD1 welding system computer, ground is for connecing power supply ground, and R1～R8 is pull-up resistor.
See among Figure 11 that battery 9～16 is the lithium phosphate energy-storage battery, T9～T16 is DS18B20 one-wire bus digital temperature transmitter, and Vd is power supply, be generally+5V, and the I/O mouth 2 of CD2 welding system computer, ground is for connecing power supply ground, and R8～R16 is pull-up resistor.
See Figure 12, in the electricity consumption switch unit, operation control control electronic switch QF4, QF5 and QF6 open and close, when QF4 and QF6 closure, when QF5 opens, control contact QF41, QF42, QF43 are communicated with control contact A, B, C respectively, and system accepts the energy storage of electrical network low ebb electricity; When QF6 opens, when QF4 and QF5 are closed, control contact QF41, QF42, QF43 are communicated with control contact QF51, QF52, QF53 respectively, the realization lithium battery is powered to the user; When QF4 opens, when QF6 and QF5 are closed, control contact A, B, C are communicated with control contact QF51, QF52, QF53 respectively, realization electrical network low ebb electricity is powered to the user; Thereby namely guarantee user's uninterrupted electricity consumption in 24 hours, again can be when not electricity consumption of low ebb user, with 23 o'clock～early 7 o'clock low ebb electricity stores.
See Figure 13, the network data acquisition device is connected to form successively by signal access unit, signal conversion unit, Isolation Amplifier Module and embedded microcomputer, the signal access unit links to each other with embedded microcomputer in proper order with signal conversion unit, isolation amplifying unit successively, embedded microcomputer is provided with field-bus interface and communicates by letter with industrial computer, the gating signal of signal access unit, signal conversion unit and isolation amplifying unit is all from embedded microcomputer, and embedded microcomputer is according to the running of the whole network signal collector of industrial computer instruction control.
See Figure 14, the signal access unit is made up of three CD4051 or the digital control simulant electronic switch of single 8 passages of CC4051.Signal access unit corresponding A 1, three outputs of A2, A3 are exported respectively, and which signal output is determined by chip selection signal QH and gating signal D2, D1, D0; Wherein signal access unit signal gating state table (the QH gating signal is 1) sees Table 1.
Table 1
See Figure 15, comprise resistance R 1～R11 in the signal conversion unit, impedance transformer GS1～GS6, electronic switch S1～S7, the gating signal D2 of input reference voltage Vuot and electronic switch, D1, D0, the signal that conversion is good is exported respectively by B1, B2, three outputs of B3; Wherein electronic switch S on-condition sees Table 2.
Table 2
See Figure 16, Isolation Amplifier Module is made up of electric capacity barrier assembly U1, amplifier U2, resistor network U3, and wherein electric capacity barrier assembly U1 is by electronic switch Kc
11, Kc
12, Kc
21, Kc
22, capacitor C 6, C7 form electronic switch Kc
11, Kc
12, Kc
21, Kc
22Switch between input and output with fixing fast frequency, when detecting voltage, electric current and thermocouple signal, signal is entered by B1, B2, and when detecting thermal resistance signal, signal is entered by B1, B2 and B3, electronic switch Kc
11, Kc
12When switching to input, signal is given capacitor C 6, C7 charging, K switch c
11, Kc
12When switching to output, signal is transferred to amplifier, has realized the isolation of sensor circuit and amplifying circuit;
See Figure 17, when detecting thermal resistance Rt signal, the voltage signal of thermal resistance enters from B1, B2, gives capacitor C 6 chargings, and the voltage signal of lead enters from B2, B3, give capacitor C 7 chargings, because the output ground connection of electronic switch Kc21, voltage on the capacitor C 6 and the voltage on the capacitor C 7 are subtracted each other, offset the influence of part lead to thermal resistance, improve the accuracy of detection of thermal resistance, also realized the isolation of sensor circuit and amplifying circuit;
See Figure 18, embedded microcomputer comprises A/D converter, reference voltage source, dsp controller, temperature sensor, network interface and memory, reference power source is connected with A/D converter, and A/D converter is connected with dsp controller with address bus AB1 by data/address bus DB1; Dsp controller one end is by data/address bus DB
2With address bus AB
2Be connected with the network interface of band fieldbus function, an end is by data/address bus DB
3With address bus AB
3Be connected with memory; Temperature sensor is connected with dsp controller, is used for measurement thermocouple cold junction ambient temperature and cold junction and compensates or survey its elsewhere temperature automatically; A/D converter receives the output signal V of U2 amplifier
Out, A/D converter requires to be provided with the high accuracy reference power source according to the rules, uses for analog-to-digital conversion.
Claims (6)
1. a portable photovoltaic generation, low ebb electricity lithium battery energy storage control system, comprise the solar panel group, the unit that confluxes, insert switch unit, energy storage copped wave unit, battery equalizer, energy storage lithium battery group and system controller, it is characterized in that, one tunnel control contact of described access switch unit links to each other with two-way inverter, electricity consumption switch unit successively, and the electricity consumption switch unit is respectively with power supply network, link to each other with electric loading and system controller; System computerized in the system controller by Profibus-DP and Modbus fieldbus respectively with the unit that confluxes, insert switch unit, two-way inverter, energy storage copped wave unit, battery equalizer, battery temperature detecting unit, electricity consumption switch unit and link to each other the system computerized formation network intelligence control system that also links to each other with alarm, display screen and GPRS wireless communication module respectively.
2. a kind of portable photovoltaic generation according to claim 1, low ebb electricity lithium battery energy storage control system, it is characterized in that, be provided with dc fuse, current sensor and the monitoring means that confluxes in the described unit that confluxes, dc fuse and current sensor are connected on the anode output end lead of certain battery tandem successively, and the output current signal of current sensor links to each other with the monitoring means input that confluxes; The described monitoring means that confluxes is the network data acquisition device, the network data acquisition device receive the multichannel current signal and with the system controller communication.
3. a kind of portable photovoltaic generation according to claim 1, low ebb electricity lithium battery energy storage control system, it is characterized in that, operation control control electronic switch QF1, QF2 and QF3 open and close in the described access switch unit, when QF1 and QF2 closure, when QF3 opens, control contact QF11, QF12 are communicated with control contact QF21, QF22 respectively; When QF1 opens, when QF2 and QF3 are closed, control contact QF31, QF32 are communicated with control contact QF21, QF22 respectively;
Comprise embedded microcomputer, keyboard, LCD display, USB interface and RS-485 interface in the described operation control, the switching value output of embedded microcomputer links to each other with switching value output driver element.
4. a kind of portable photovoltaic generation according to claim 1, low ebb electricity lithium battery energy storage control system, it is characterized in that, comprise voltage conversion circuit, inverter, filter and two-way circuit control device in the described two-way inverter, the input signal of voltage conversion circuit is taken from the direct current output of the control contact QF11, the QF12 that insert switch unit.
5. a kind of portable photovoltaic generation according to claim 1, low ebb electricity lithium battery energy storage control system, it is characterized in that, temperature sensor Tn links to each other with the network data acquisition device through pull-up resistor Rn in the described battery temperature detecting unit, the network data acquisition device detect and with the system controller communication.
6. according to claim 2 or 5 described a kind of portable photovoltaic generations, low ebb electricity lithium battery energy storage control system, it is characterized in that, described network data acquisition device is connected to form successively by signal access unit, signal conversion unit, Isolation Amplifier Module and embedded microcomputer, described Isolation Amplifier Module is made up of electric capacity barrier assembly U1, amplifier U2, resistor network U3, and wherein electric capacity barrier assembly U1 is by electronic switch Kc
11, Kc
12, Kc
21, Kc
22, capacitor C 6, C7 form;
Embedded microcomputer comprises A/D converter, reference voltage source, dsp controller, temperature sensor, network interface and memory, and reference power source is connected with A/D converter, and A/D converter is connected with dsp controller with address bus AB1 by data/address bus DB1; Dsp controller one end is by data/address bus DB
2With address bus AB
2Be connected with the network interface of band fieldbus function, an end is by data/address bus DB
3With address bus AB
3Be connected with memory; Temperature sensor is connected with dsp controller; A/D converter links to each other with the output of U2 amplifier.
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| CN2013200793983U CN203151234U (en) | 2013-02-19 | 2013-02-19 | Mobile photovoltaic power generation, off-peak power lithium battery energy storage control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178620A (en) * | 2013-02-19 | 2013-06-26 | 辽宁凯信新能源技术有限公司 | Mobile photovoltaic power generation and off-peak electricity energy storage control system for lithium batteries |
| TWI562498B (en) * | 2015-01-26 | 2016-12-11 | Hon Hai Prec Ind Co Ltd | Mobile device and method of assigning current |
-
2013
- 2013-02-19 CN CN2013200793983U patent/CN203151234U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178620A (en) * | 2013-02-19 | 2013-06-26 | 辽宁凯信新能源技术有限公司 | Mobile photovoltaic power generation and off-peak electricity energy storage control system for lithium batteries |
| CN103178620B (en) * | 2013-02-19 | 2015-07-01 | 辽宁凯信新能源技术有限公司 | Mobile photovoltaic power generation and off-peak electricity energy storage control system for lithium batteries |
| TWI562498B (en) * | 2015-01-26 | 2016-12-11 | Hon Hai Prec Ind Co Ltd | Mobile device and method of assigning current |
| US10243374B2 (en) | 2015-01-26 | 2019-03-26 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Mobile device and method of managing charging current |
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