CN105529812A - Photovoltaic energy-storage storage battery charge/discharge system - Google Patents
Photovoltaic energy-storage storage battery charge/discharge system Download PDFInfo
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- CN105529812A CN105529812A CN201610083096.1A CN201610083096A CN105529812A CN 105529812 A CN105529812 A CN 105529812A CN 201610083096 A CN201610083096 A CN 201610083096A CN 105529812 A CN105529812 A CN 105529812A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 12
- 238000007600 charging Methods 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims description 41
- 238000005070 sampling Methods 0.000 claims description 27
- 230000001276 controlling effect Effects 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000000295 complement effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H02J3/385—
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An embodiment of the invention provides a photovoltaic energy-storage storage battery charge/discharge system. The system comprises a photovoltaic module, a Boost circuit, a Buck-Boost conversion circuit, a storage battery pack, a full-bridge inverter circuit and mains supply, wherein the photovoltaic module provides stable direct current bus through the Boost circuit; the storage battery pack is connected with the direct current bus through the Buck-Boost conversion circuit in a suspending manner to complete the charge/discharge control for the storage battery pack; and the mains supply and the load are connected with the direct current bus through the full-bridge inverter circuit in a suspending manner to complete the power supply control for the load. The photovoltaic energy-storage storage battery charge/discharge system can work under three working condition modes, including a photovoltaic power supply and storage battery charging operation, a photovoltaic power supply and storage battery charge/discharge output grid-connection operation with load, and a storage battery discharge and grid-connection operation with load; and the working conditions of the system are reasonably switched by adopting a proper energy management policy based on the output power of the photovoltaic module, the storage battery SOC and the load conditions so as to ensure the smooth operation of the system.
Description
Technical field
The invention belongs to family energy-storage system, be specifically related to photovoltaic energy storage system accumulator cell charging and discharging and control.
Background technology
The general family green energy resource system of current Application comparison is generally photovoltaic generating system, mainly comprises solar energy photovoltaic panel, controller, storage battery, combining inverter.System configuration generally adopts photovoltaic array to connect storage battery by charging control, and inverter received by storage battery, and inverter output end is grid-connected.
This kind of structure service machine is too much, and capacity usage ratio is on the low side, and operating mode is simple, lacks necessary efficient scheduling and controls.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of photovoltaic energy storage accumulator charging/discharging system, it is characterized in that, comprise photovoltaic module, Boost circuit, Buck-Boost translation circuit, batteries, full-bridge inverter circuit, civil power, described photovoltaic module provides stable DC bus by described Boost circuit; Described batteries is articulated on DC bus through Buck-Boost translation circuit, completes the charge and discharge control of batteries; Described civil power and load are articulated on DC bus through full bridge inverter, complete the power supply control of load;
It also comprises-array voltage sampling unit, for sampled light photovoltaic assembly output voltage signal U
pv;
-Boost output voltage sampling unit, for the output bus voltage signal U of Boost circuit of sampling
boost;
-charging/discharging voltage sampling unit, for the output charging/discharging voltage signal U of Buck-Boost translation circuit of sampling
buck;
-array current sampling unit, for sampled light photovoltaic assembly output current signal I
pV;
-charge discharge electric current sampling unit, for the output charging current signal I of Buck-Boost translation circuit of sampling
buck;
-MPPT unit, according to the output voltage signal U of photovoltaic module
pvwith photovoltaic module output current signal I
pV, utilize maximal power tracing technology to carry out maximal power tracing to photovoltaic battery panel, obtain photovoltaic battery panel optimum operating voltage U*
pv;
-the first voltage controller, by the output valve U* of described MPPT unit
pvwith array voltage sample circuit output valve U
pvget difference, export I through a PI controller regulating and controlling
ref1;
-the second voltage controller, by busbar voltage command value U*
boost1with the output valve U of busbar voltage sample circuit
boostget difference, export I through the 2nd PI controller regulating and controlling
ref2;
-amplitude limit control unit, according to the first voltage controller output valve I
ref1with the second voltage controller output valve I
ref2size the output valve I* of described amplitude limit control unit is set
pV;
-Boost current controller, by the output valve I* of amplitude limit control unit
pVwith photovoltaic array current sampling circuit output valve I
pVget difference, export through the 3rd PI controller regulating and controlling and drive duty ratio to PWM generator, drive Boost circuit;
-the four voltage controller, by busbar voltage command value U*
boost2with the output valve U of busbar voltage sample circuit
boostget difference, export I through the 4th PI controller regulating and controlling
ref3;
-the five voltage controller, by charging/discharging voltage command value U*
buckwith the output valve U of charging/discharging voltage sample circuit
buckget difference, export I through the 5th PI controller regulating and controlling
ref4;
-amplitude limit control unit, according to the 4th voltage controller output valve I
ref3with the 5th voltage controller output valve I
ref4size the output valve I* of described amplitude limit control unit is set
buck;
-charging and discharging currents controller, by the output valve I* of discharge and recharge clipping unit
buckwith charging and discharging currents sample circuit output valve I
buckget difference, export through the 6th PI controller regulating and controlling and drive duty ratio to PWM generator, drive Buck-Boost translation circuit.
The present invention has following beneficial effect:
Photovoltaic energy storage accumulator charging/discharging system provided by the invention makes system works exist: 1) photovoltaic power supply, charge in batteries run; 2) photovoltaic power supply, accumulator cell charging and discharging export grid-connected run with load; 3) battery discharging, grid-connected run with load; Three kinds of regime mode, adopt suitable energy management strategies according to output power of photovoltaic module, storage battery SOC, the reasonable switched system operating mode of loading condition, ensure system even running.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described describing the required accompanying drawing used to embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The photovoltaic energy storage accumulator charging/discharging system composition schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The equivalent circuit diagram of the photovoltaic side Boost circuit that Fig. 2 provides for the embodiment of the present invention;
The Buck-Boost electrical block diagram that Fig. 3 provides for the embodiment of the present invention;
The equivalent circuit diagram of the full bridge inverter that Fig. 4 provides for the embodiment of the present invention;
The control principle drawing that the accumulator cell charging and discharging that Fig. 5 provides for the embodiment of the present invention controls.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of photovoltaic energy storage accumulator charging/discharging system, it comprises photovoltaic module 1, Boost circuit 2, Buck-Boost translation circuit 3, batteries 4, full-bridge inverter circuit 5, civil power 6, and described photovoltaic module 1 provides stable DC bus by described Boost circuit 2; Described batteries 4 is articulated on DC bus through Buck-Boost translation circuit 3, completes the charge and discharge control of batteries; Described civil power 6 and load 7 are articulated on DC bus through full bridge inverter 5, complete the power supply control of load;
It also comprises-array voltage sampling unit, for sampled light photovoltaic assembly output voltage signal U
pv;
-Boost output voltage sampling unit, for the output bus voltage signal U of Boost circuit of sampling
boost;
-charging/discharging voltage sampling unit, for the output charging/discharging voltage signal U of Buck-Boost translation circuit of sampling
buck;
-array current sampling unit, for sampled light photovoltaic assembly output current signal I
pV;
-charge discharge electric current sampling unit, for the output charging current signal I of Buck-Boost translation circuit of sampling
buck;
-MPPT unit, according to the output voltage signal U of photovoltaic module
pvwith photovoltaic module output current signal I
pV, utilize maximal power tracing technology to carry out maximal power tracing to photovoltaic battery panel, obtain photovoltaic battery panel optimum operating voltage U*
pv;
-the first voltage controller, by the output valve U* of described MPPT unit
pvwith array voltage sample circuit output valve U
pvget difference, export I through a PI controller PI_1 regulating and controlling
ref1;
-the second voltage controller, by busbar voltage command value U*
boost1with the output valve U of busbar voltage sample circuit
boostget difference, export I through the 2nd PI controller PI_2 regulating and controlling
ref2;
-amplitude limit control unit, according to the first voltage controller output valve I
ref1with the second voltage controller output valve I
ref2size the output valve I* of described amplitude limit control unit is set
pV;
-Boost current controller, by the output valve I* of amplitude limit control unit
pVwith photovoltaic array current sampling circuit output valve I
pVget difference, export through the 3rd PI controller PI_3 regulating and controlling and drive duty ratio to PWM generator, drive Boost circuit;
-the four voltage controller, by busbar voltage command value U*
boost2with the output valve U of busbar voltage sample circuit
boostget difference, export I through the 4th PI controller PI_4 regulating and controlling
ref3;
-the five voltage controller, by charging/discharging voltage command value U*
buckwith the output valve U of charging/discharging voltage sample circuit
buckget difference, export I through the 5th PI controller PI_5 regulating and controlling
ref4;
-amplitude limit control unit, according to the 4th voltage controller output valve I
ref3with the 5th voltage controller output valve I
ref4size the output valve I* of described amplitude limit control unit is set
buck;
-charging and discharging currents controller, by the output valve I* of discharge and recharge clipping unit
buckwith charging and discharging currents sample circuit output valve I
buckget difference, export through the 6th PI controller PI_6 regulating and controlling and drive duty ratio to PWM generator, drive Buck-Boost translation circuit.
The Boost circuit 2 that wherein the present embodiment provides comprises: inductance L 2, switching tube S3 and a diode D1, is connected on DC bus after inductance L 2 and diode D1 connect.Boost circuit 2 operation principle is: photovoltaic module 3 is equivalent to voltage source Upv, and DC bus partial circuit is below equivalent to ohmic load R, and therefore photovoltaic side Boost circuit 2 equivalent circuit diagram as shown in Figure 2.This partial circuit mainly completes MPPT function, realizes farthest utilizing photovoltaic energy.
As shown in Figure 4, DC bus is articulated on a full bridge inverter be made up of 4 switching tubes 5 full bridge inverter 5 equivalent circuit diagram that the present embodiment provides, and the pulse voltage that inversion produces is through LC filter access load 7.In single-phase inversion system, because of sinusoidal pulse width modulation (SinusoidalPulseWidthModulation, SPWM) mode control algolithm is simple and the feature such as be easy to realize, output harmonic wave is low and obtain extensive use, SPWM modulation system comprises unipolarity modulation and bipolar modulation, wherein unipolarity frequency doubling technology is switching frequency 2 times due to its full-bridge inverting frequency, reduces switching tube loss and reduce inductance sensibility reciprocal to be therefore more suitable for single-phase inversion control.
The Buck-Boost translation circuit 3 that the embodiment of the present invention provides comprises two switching tube S
1, S
2with an inductance L
1with electric capacity C3, inductance L
1form LC filter circuit with electric capacity, the constant pressure and flow realizing batteries 4 controls, and batteries 4 is connected in parallel on electric capacity C3.Buck-Boost circuit is with reference to shown in Fig. 3.
Buck-Boost translation circuit 3 principle Analysis: Buck-Boost translation circuit 3 freely can switch between Buck pattern and Boost pattern.It is operated in Buck pattern, realizes the constant voltage constant current charging of batteries 4; Be operated in Boost pattern, realize current limliting electric discharge, stablize busbar voltage.Independent PWM can be divided in control mode to send out ripple mode for Buck-Boost translation circuit 3 and the complementary PWM of upper and lower bridge arm sends out ripple mode; When wherein independent PWM controls, work when upper and lower bridge arm switching tube is different, i.e. a switching tube job, another one switching tube blocks, and utilizes its inverse parallel body diode afterflow.Can know from the circuit analysis Fig. 3: be operated in Boost pattern, S2 blocks; Be operated in Buck pattern, S1 blocks.Its advantage is that control is upper fairly simple, only needs control switching tube; But because body diode afterflow, have larger power loss.
When adopting complementary PWM to send out ripple control, upper and lower bridge arm two switching tube complementary duty; Complementary PWM control mode still can be subdivided into two types in fact.Adopt complementary PWM to send out ripple to control, the mode of operation of Buck-Boost translation circuit 3 is determined by power flow direction, by current/voltage ring three close-loop control charge and discharge process.During power amplifier electricity, high side voltage, as controlled device, stablizes busbar voltage; During charging, controlled device just becomes low-pressure side voltage, realizes pressure-limit current-limit charging.This control mode when continuous current mode with independent PWM control mode without difference in essence, but Sofe Switch condition can be obtained under discontinous mode (DiscontinuousCurrentMode, DCM), reduce switching loss.
In the present invention, when Buck-Boost translation circuit 3 is operated in charge or discharge state, needs to arrange discharge and recharge restriction threshold values, prevent Buck-Boost translation circuit 3 from switching between charging and discharging state continually, cause unnecessary energy loss and wave distortion.In sum, Buck-Boost bidirectional DC-DC converter herein selects complementary PWM control mode in control mode.
The control method realizing accumulator cell charging and discharging control is shown in Fig. 5, for realizing accumulator cell charging and discharging adaptive control object, the present embodiment adopts high performance dsp chip, completes MPPT and accumulator cell charging and discharging controlling functions, the reliability of guarantee work, improves the efficiency of light energy utilization.
Adopt Boost circuit to realize photovoltaic MPPT control and stablize Boost output voltage.MPPT scheme adopts ripe control method (P=U*I, power tracking method), has higher MPPT efficiency and the output of stable voltage.
Accumulator cell charging and discharging controls to adopt two-way Buck-Boost translation circuit, adopts a complementary ripple.During charging, adjustment S1 pipe duty ratio, S2 follows; Charging controls to adopt two-part charging and low current charge to control.
When battery tension is lower than under-voltage, adopt small area analysis activating charge, ensure that storage battery is crossed when putting, charging can be recovered, extend the useful life of electric power storage.Battery tension is higher than under-voltage point, and charging enters pressure-limit current-limit charged state, and pressure limiting voltage is float charge voltage, continuous current according to join storage battery difference arrange respectively.
Illumination is not enough but when being greater than load consumption, photovoltaic discharge and recharge component working, in maximum power charged state, makes full use of solar energy; When illumination is sufficient or storage battery is full of soon, photovoltaic discharge and recharge component working, in constant voltage charge state, prevents the battery damage caused because of super-high-current and voltage, extends the life of storage battery; When photovoltaic energy is not enough to for load consumption, battery-operated, in discharge condition, supplements the deficiency of photovoltaic energy.
Arranging of charging voltage and charging current generates automatically according to the capacity of storage battery and voltage, and the improper numerical value of part manually can adjust realization, realizes Width funtion and adjustable charging current function.
Discharging function adopts adjustment S1 pipe duty ratio S2 to follow mode equally, but instruction current now becomes negative current from positive current, adopts Voltage loop and electric current loop, realizes constant pressure and flow electric discharge.This place's constant voltage discharge voltage is Boost busbar voltage, the maximum current that constant current allows for the maximum permission discharging current of storage battery or hardware.Boost busbar voltage is mainly stablized in electric discharge, supplements photovoltaic power insufficient section.
Battery discharging defencive function and the electric control of storage battery cycle charge discharge are set, prevent from crossing to put because of storage battery shortening the useful life caused, improve service lifetime of accumulator.Accumulator cell charging and discharging threshold values is set, prevents the frequent switching of accumulator charging/discharging process.
Photovoltaic energy storage accumulator charging/discharging system provided by the invention makes system works exist: 1) photovoltaic power supply, charge in batteries run; 2) photovoltaic power supply, accumulator cell charging and discharging export grid-connected run with load; 3) battery discharging, grid-connected run with load; Three kinds of regime mode, adopt suitable energy management strategies according to output power of photovoltaic module, storage battery SOC, the reasonable switched system operating mode of loading condition, ensure system even running.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this specification, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technical staff understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (1)
1. a photovoltaic energy storage accumulator charging/discharging system, it is characterized in that, comprise photovoltaic module 1, Boost circuit 2, Buck-Boost translation circuit 3, batteries 4, full-bridge inverter circuit 5, civil power 6, described photovoltaic module 1 provides stable DC bus by described Boost circuit 2; Described batteries 4 is articulated on DC bus through Buck-Boost translation circuit 3, completes the charge and discharge control of batteries; Described civil power 6 and load 7 are articulated on DC bus through full bridge inverter 5, complete the power supply control of load;
It also comprises-array voltage sampling unit, for sampled light photovoltaic assembly output voltage signal U
pv;
-Boost output voltage sampling unit, for the output bus voltage signal U of Boost circuit of sampling
boost;
-charging/discharging voltage sampling unit, for the output charging/discharging voltage signal U of Buck-Boost translation circuit of sampling
buck;
-array current sampling unit, for sampled light photovoltaic assembly output current signal I
pV;
-charge discharge electric current sampling unit, for the output charging current signal I of Buck-Boost translation circuit of sampling
buck;
-MPPT unit, according to the output voltage signal U of photovoltaic module
pvwith photovoltaic module output current signal I
pV, utilize maximal power tracing technology to carry out maximal power tracing to photovoltaic battery panel, obtain photovoltaic battery panel optimum operating voltage U*
pv;
-the first voltage controller, by the output valve U* of described MPPT unit
pvwith array voltage sample circuit output valve U
pvget difference, export I through PI controller (PI_1) regulating and controlling
ref1;
-the second voltage controller, by busbar voltage command value U*
boost1with the output valve U of busbar voltage sample circuit
boostget difference, export I through the 2nd PI controller (PI_2) regulating and controlling
ref2;
-amplitude limit control unit, according to the first voltage controller output valve I
ref1with the second voltage controller output valve I
ref2size the output valve I* of described amplitude limit control unit is set
pV;
-Boost current controller, by the output valve I* of amplitude limit control unit
pVwith photovoltaic array current sampling circuit output valve I
pVget difference, export through the 3rd PI controller (PI_3) regulating and controlling and drive duty ratio to PWM generator, drive Boost circuit;
-the four voltage controller, by busbar voltage command value U*
boost2with the output valve U of busbar voltage sample circuit
boostget difference, export I through the 4th PI controller (PI_4) regulating and controlling
ref3;
-the five voltage controller, by charging/discharging voltage command value U*
buckwith the output valve U of charging/discharging voltage sample circuit
buckget difference, export I through the 5th PI controller (PI_5) regulating and controlling
ref4;
-amplitude limit control unit, according to the 4th voltage controller output valve I
ref3with the 5th voltage controller output valve I
ref4size the output valve I* of described amplitude limit control unit is set
buck;
-charging and discharging currents controller, by the output valve I* of discharge and recharge clipping unit
buckwith charging and discharging currents sample circuit output valve I
buckget difference, export through the 6th PI controller (PI_6) regulating and controlling and drive duty ratio to PWM generator, drive Buck-Boost translation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610083096.1A CN105529812A (en) | 2016-02-03 | 2016-02-03 | Photovoltaic energy-storage storage battery charge/discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610083096.1A CN105529812A (en) | 2016-02-03 | 2016-02-03 | Photovoltaic energy-storage storage battery charge/discharge system |
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| Publication Number | Publication Date |
|---|---|
| CN105529812A true CN105529812A (en) | 2016-04-27 |
Family
ID=55771871
Family Applications (1)
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|---|---|---|---|
| CN201610083096.1A Pending CN105529812A (en) | 2016-02-03 | 2016-02-03 | Photovoltaic energy-storage storage battery charge/discharge system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059038A (en) * | 2016-06-06 | 2016-10-26 | 易事特集团股份有限公司 | Method for manufacturing multipath parallel current-sharing circuit, multipath parallel current-sharing circuit, solar charging and discharging controller and photovoltaic system |
| CN109066743A (en) * | 2018-08-07 | 2018-12-21 | 中国电力科学研究院有限公司 | A kind of the battery energy storage system self-adaptation control method and system of multi-machine parallel connection |
| CN109617041A (en) * | 2019-02-21 | 2019-04-12 | 西南交通大学 | A kind of energy management of photovoltaic energy storage system and control device |
| CN111725865A (en) * | 2020-06-11 | 2020-09-29 | 深圳硕日新能源科技有限公司 | Wide-voltage inverse control all-in-one machine and control method thereof |
| CN111864852A (en) * | 2020-07-30 | 2020-10-30 | 合肥工业大学 | Charging and discharging control method and system for lithium battery of photovoltaic power generation system |
| CN113206534A (en) * | 2021-06-08 | 2021-08-03 | 阳光电源股份有限公司 | Energy storage system power control method, controller and energy storage system |
| CN114123449A (en) * | 2021-11-26 | 2022-03-01 | 华能清能通榆电力有限公司 | Independent photovoltaic power generation energy storage system and energy management method |
| CN114928102A (en) * | 2022-05-26 | 2022-08-19 | 西安热工研究院有限公司 | Distributed energy storage photovoltaic intelligent power generation system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059038A (en) * | 2016-06-06 | 2016-10-26 | 易事特集团股份有限公司 | Method for manufacturing multipath parallel current-sharing circuit, multipath parallel current-sharing circuit, solar charging and discharging controller and photovoltaic system |
| CN109066743A (en) * | 2018-08-07 | 2018-12-21 | 中国电力科学研究院有限公司 | A kind of the battery energy storage system self-adaptation control method and system of multi-machine parallel connection |
| CN109617041A (en) * | 2019-02-21 | 2019-04-12 | 西南交通大学 | A kind of energy management of photovoltaic energy storage system and control device |
| CN109617041B (en) * | 2019-02-21 | 2023-10-24 | 西南交通大学 | Energy management and control device of photovoltaic energy storage system |
| CN111725865A (en) * | 2020-06-11 | 2020-09-29 | 深圳硕日新能源科技有限公司 | Wide-voltage inverse control all-in-one machine and control method thereof |
| CN111864852A (en) * | 2020-07-30 | 2020-10-30 | 合肥工业大学 | Charging and discharging control method and system for lithium battery of photovoltaic power generation system |
| CN113206534A (en) * | 2021-06-08 | 2021-08-03 | 阳光电源股份有限公司 | Energy storage system power control method, controller and energy storage system |
| CN114123449A (en) * | 2021-11-26 | 2022-03-01 | 华能清能通榆电力有限公司 | Independent photovoltaic power generation energy storage system and energy management method |
| CN114928102A (en) * | 2022-05-26 | 2022-08-19 | 西安热工研究院有限公司 | Distributed energy storage photovoltaic intelligent power generation system |
| CN114928102B (en) * | 2022-05-26 | 2024-03-12 | 西安热工研究院有限公司 | Distributed energy storage photovoltaic intelligent power generation system |
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Application publication date: 20160427 |