CN103236747A - Photovoltaic power supply hybrid energy storage system - Google Patents
Photovoltaic power supply hybrid energy storage system Download PDFInfo
- Publication number
- CN103236747A CN103236747A CN2013101473718A CN201310147371A CN103236747A CN 103236747 A CN103236747 A CN 103236747A CN 2013101473718 A CN2013101473718 A CN 2013101473718A CN 201310147371 A CN201310147371 A CN 201310147371A CN 103236747 A CN103236747 A CN 103236747A
- Authority
- CN
- China
- Prior art keywords
- power supply
- storage system
- photo
- energy storage
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
Abstract
The invention relates to a photovoltaic power supply hybrid energy storage system which comprises a super capacitor, a storage battery pack, a backup energy storage system, three energy storage inductances, six IGBTs (Insulated Gate Bipolar Transistors) with antiparallel diodes and a state monitor. After the super capacitor is connected in series with a first energy storage inductance, one end of the super capacitor is connected with a cathode of a photovoltaic power supply DC (Direct Current) bus and the other end of the super capacitor is respectively connected with the cathode and an anode of the DC bus by a first IGBT and a second IGBT; after the storage battery pack is connected in series with a second energy storage inductance, one end of the storage battery pack is connected with the cathode of the DC bus and the other end of the storage battery pack is respectively connected with the cathode and the anode of the DC bus by a third IGBT and a fourth IGBT; and after the backup energy storage system is connected in series with a third energy storage inductance, one end of the backup energy storage system is connected with the cathode of the DC bus and the other end of the backup energy storage system is respectively connected with the cathode and the anode of the DC bus by a fifth IGBT and a sixth IGBT. According to the invention, the advantages of three types of energy storage units are complemented; power supply quality and utilization rate of light energy are improved; operating life of the system is effectively prolonged; and operating cost is reduced.
Description
Technical field
The present invention relates to a kind of mixed energy storage system for the adjustment of photovoltaic generating system running status, belong to technical field of power generation.
Background technology
Solar energy power generating is a kind of mode of effectively utilizing solar energy, has advantages such as do not consume primary energy, pollution-free, noiseless, construction scale is changeable in the running.But photovoltaic generating system has the lower shortcoming of the efficiency of light energy utilization in the relatively poor and running of the quality of power supply that produces simultaneously, has influenced the practical application of photovoltaic power generation technology.The main cause that these problems occur is that the generating capacity of photovoltaic cell can the equidirectional non-linear change along with the variation of sunlight illumination, the changing inversely along with variation of temperature, and have only could Maximum Power Output when its generating capacity and load are complementary.Because the situation of change of load is determined by the user fully, and the output voltage of photo-voltaic power supply can change significantly along with the variation of load, so rely on photo-voltaic power supply self can't satisfy the conventional electric power user to the requirement of the power supply quality of power supply.This generating capacity of photo-voltaic power supply changes with natural environment and feature that non-linear change and generating capacity and load can't be mated, has caused in system's running the efficiency of light energy utilization very low, and the photovoltaic cost of electric energy is higher.A kind of effective ways that address the above problem are energy storage devices that a constant volume is installed in photovoltaic generating system, utilize energy storage device to improve the power supply quality of power supply of photovoltaic generating system and the efficiency of light energy utilization in the running.
Present photovoltaic generating system generally adopts batteries to carry out energy storage, and when the electricity generation system energy was sufficient, photo-voltaic power supply was the charging of energy storage battery group, and for the power consumer power supply or to electrical network transmission of electric energy (networking operation mode); When the electricity generation system energy shortage maybe can't generate electricity, batteries discharge continued to provide electric energy for power consumer or electrical network.Adopt batteries to carry out energy storage and have certain defective, at first there is electrochemical reaction in internal storage battery, and the speed that discharges and recharges is slow; Secondly the accumulator cell charging and discharging number of times is limited, and useful life is short, and discarded storage battery can pollute environment, often changes storage battery and can make that also the photovoltaic cost of electric energy further increases.Therefore, some researchers have proposed technology such as flywheel energy storage technology, ultracapacitor energy storage technology, superconducting energy storage are applied to photovoltaic generating system, these energy storage technologies all have long service life, power density is big, the speed that discharges and recharges is fast and the advantage of non-environmental-pollution, but all there is the low and higher shortcoming of cost of energy storage density again in they, replace batteries fully and are difficult to realize in engineering reality.In recent years, some researchers have proposed storage battery and ultracapacitor are composed in parallel by reactor the method for mixed energy storage system from the useful life of improving storage battery, and carried out to be running simulation study and the part experimental study of target, to have obtained improving the useful conclusion of the life of storage battery to improve storage battery useful life.In fact, photovoltaic generating system is installed the continuous several days situations sunny or cloudy and drizzly for days on end in area and is happened occasionally, simple ultracapacitor and the batteries of relying on satisfies the long-time demand that continues charge or discharge, considers very uneconomical from the investment utilance aspect of energy-storage system.Therefore, how to improve time, the raising photovoltaic generating system power supply quality of power supply that mixed energy storage system continues charge or discharge with most economical method, just become the present difficult problem that faces of relevant technologies personnel.
Summary of the invention
The objective of the invention is to the drawback at prior art, provide a kind of energy storage capacity big, have extended cycle life, response speed is fast, the power handling capacity is strong, small investment and long photo-voltaic power supply mixed energy storage system of lasting charge or discharge time.
Problem of the present invention realizes with following technical proposals:
A kind of photo-voltaic power supply mixed energy storage system, comprise ultracapacitor in the formation, batteries, the reserve energy-storage system, three energy storage inductors, six IGBT and status monitors that have the inverse parallel fast recovery diode, described ultracapacitor is connected in series back one termination photo-voltaic power supply dc bus negative pole with first energy storage inductor, the other end connects negative pole and the positive pole of photo-voltaic power supply dc bus respectively through an IGBT and the 2nd IGBT, described batteries is connected in series back one termination photo-voltaic power supply dc bus negative pole with second energy storage inductor, the other end connects negative pole and the positive pole of photo-voltaic power supply dc bus respectively through the 3rd IGBT and the 4th IGBT, described reserve energy-storage system is connected in series back one termination photo-voltaic power supply dc bus negative pole with the 3rd energy storage inductor, the other end connects negative pole and the positive pole of photo-voltaic power supply dc bus respectively through the 5th IGBT and the 6th IGBT;
Described photo-voltaic power supply mixed energy storage system operates as follows:
In the photovoltaic generating system running, status monitor detects DC bus-bar voltage, ultracapacitor voltage, accumulator battery voltage and the reserve energy-storage system voltage of photo-voltaic power supply in real time, and adjusts the running status of mixed energy storage system by the following method according to the monitor value of each voltage:
If the DC bus-bar voltage of photo-voltaic power supply is at its rated value
U N98%～102% scope in, then original state of a control is constant;
When the DC bus-bar voltage of photo-voltaic power supply is lower than its rated value
U N98% o'clock, if mixed energy storage system current is charged state, then reduce the charge power of energy-storage system; If mixed energy storage system is current not to be charged state, then carry out Generation Control, energy-storage system is increased to the power of the dc bus transmission of photo-voltaic power supply;
When the DC bus-bar voltage of photo-voltaic power supply is higher than its rated value
U N102% o'clock, if mixed energy storage system current is generating state, then reduce the generated output of mixed energy storage system; Not the generating state control of then charging if mixed energy storage system is current, make photo-voltaic power supply to the charge power increase of energy-storage system.
Above-mentioned photo-voltaic power supply mixed energy storage system, make mixed energy storage system to the method for the power increase of the dc bus transmission of photo-voltaic power supply be: at first to control the break-make duty ratio increment of an IGBT, ultracapacitor is increased to the power of the dc bus transmission of photo-voltaic power supply; If this moment, super capacitor electrode forced down in 0.2 times of its maximum operating voltage, then change the break-make duty ratio increment of control the 3rd IGBT into, batteries is increased to the power of the dc bus transmission of photo-voltaic power supply; If accumulator battery voltage is less than 0.8 times of its specified electricity value at this moment, then change the break-make duty ratio increment of control the 5th IGBT into, make standby energy-storage system to the power increase of the dc bus transmission of photo-voltaic power supply.
Above-mentioned photo-voltaic power supply mixed energy storage system makes photo-voltaic power supply to the method for the charge power increase of mixed energy storage system be: at first control the break-make duty ratio increment of the 2nd IGBT, photo-voltaic power supply is increased to the charge power of ultracapacitor; If this moment, ultracapacitor voltage reached its maximum operating voltage, then change the break-make duty ratio increment of control the 4th IGBT into, photo-voltaic power supply is increased to the charge power of batteries; If accumulator battery voltage is greater than 1.3 times of its rated voltage at this moment, then change the break-make duty ratio increment of control the 6th IGBT into, photo-voltaic power supply is increased to the charge power of standby energy-storage system.
Above-mentioned photo-voltaic power supply mixed energy storage system, described reserve energy-storage system is electrolytic hydrogen production-generating equipment.
Above-mentioned photo-voltaic power supply mixed energy storage system, when increasing the charge and discharge power of mixed energy storage system, each IGBT break-make duty ratio increment
Computational methods be:
, wherein,
Be the photo-voltaic power supply DC bus-bar voltage,
K 1,
K 2Be the positive coefficient relevant with the carrier frequency of the voltage of dc bus rated voltage, current operation energy-storage units and control circuit.
Above-mentioned photo-voltaic power supply mixed energy storage system also comprises the voltage stabilizing electrochemical capacitor in the formation, the positive pole of described voltage stabilizing electrochemical capacitor and negative pole connect positive pole and the negative pole of photo-voltaic power supply dc bus respectively.
Above-mentioned photo-voltaic power supply mixed energy storage system is provided with fling-cut switch between energy-storage system and photo-voltaic power supply dc bus.
The present invention organically combines and coordinates control with ultracapacitor, batteries and reserve energy-storage system, has realized the mutual supplement with each other's advantages of dissimilar energy-storage units.When photo-voltaic power supply normally moved, the excursion of about 25% when the supply power voltage quality is regulated from original no energy storage was brought up to 2%～3% fluctuation range; The efficiency of light energy utilization improved nearly 50% more originally.Ultracapacitor more than 500,000 times is born, secular disequilibrium power is born by the reserve energy-storage system because the short-term imbalance power that sunlight illumination frequent variations and load random fluctuation cause is by discharging and recharging, prolonged the length of service of short batteries of cycle life greatly, configurable batteries than low capacity also under the prerequisite that improves quality of voltage and power supply reliability has reduced the comprehensive method of investment and the operation and maintenance cost of energy-storage system.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is system configuration schematic diagram of the present invention.
Each symbol inventory is among the figure: GV, solar battery array, C1, ultracapacitor, B2, batteries, B3, reserve energy-storage system, T0～T5, an IGBT(insulated gate bipolar transistor)～the 6th IGBT, D0～D5, first fast recovery diode～the 6th fast recovery diode, L1～L3, first energy storage inductor～the 3rd energy storage inductor, C
P, the voltage stabilizing electrochemical capacitor, D
P, the counnter attack diode, DC/DC, photo-voltaic power supply MPPT maximum power point tracking controller, DC/AC, inverter, K, fling-cut switch,
U S, the mixed energy storage system output voltage,
U PV, (its rated value is the photo-voltaic power supply DC bus-bar voltage
U N),
U C1, ultracapacitor voltage,
U B2, accumulator battery voltage,
U B3, reserve energy-storage system voltage.
Embodiment
The present invention is divided three classes them according to essential characteristics such as the response speed of various energy-storage systems, power handling capacity, energy storage capacity, cycle lives.The first kind is energy-storage systems such as ultracapacitor, flywheel, superconduction, and such energy-storage system has the advantage that response speed is fast, the power handling capacity strong, have extended cycle life, and it is little or carry out the very high inferior position of big capacity energy storage cost to have energy storage capacity simultaneously.Second class is various types of batteries to store energy system, as lead acid accumulator, lithium ion battery etc., such energy-storage system generally possess skills maturation, the lower-cost advantage of larger capacity energy storage have the inferior position that response speed is medium, the power handling capacity is medium, cycle life is short simultaneously.The reserve energy storage device that the 3rd class is slow for toggle speed, can provide electric energy and consumed power for a long time, the equipment that combines with stand-by power supply as the load of electrolytic hydrogen production-generating equipment, no quality requirement etc., this class energy-storage system can solve the electric energy that photovoltaic generating system continues and lack and superfluous problem in the long time.The present invention with the energy-storage units of three types of ultracapacitor, storage battery and reserve energy-storage systems by the synthetic mixed energy storage system of Technics of Power Electronic Conversion circuit bank, utilize the running status of this mixed energy storage system regulation and control photo-voltaic power supply, solve the difficult problem of photovoltaic generating system power supply quality of power supply difference, improve the efficiency of light energy utilization in the photo-voltaic power supply running simultaneously.
The present invention includes ultracapacitor C1, batteries B2, reserve energy-storage system B3, three energy storage inductors (L1, L2, L3), six insulated gate bipolar transistors (T0, T1, T2, T3, T4, T5), six fast recovery diodes (D0, D1, D2, D3, D4, D5), voltage stabilizing electrochemical capacitor C
P, status monitor, fling-cut switch K.
Among Fig. 1, photo-voltaic power supply comprises solar battery array GV, counnter attack diode D
P, DC/DC MPPT maximum power point tracking controller, DC/AC inverter, dc bus.Dc bus in the photovoltaic generating system links together by the output of fling-cut switch K and mixed energy storage system.
When K switch disconnected, mixed energy storage system did not participate in control, because the variation of sunlight, temperature, load can't be avoided DC bus-bar voltage
U PVBe difficult to operate in a stable operating point that satisfies the quality of voltage standard; In addition, because the generating capacity of solar battery array and the electric power of user or electrical network can't mate, the effect of DC/DC MPPT maximum power point tracking controller can't be brought into play, and illumination can only " be abandoned light " than good times volt power supply and be moved, and the efficiency of light energy utilization of system is lower.
With the K switch closure, mixed energy storage system participates in photovoltaic generating system operation control.In system's running, status monitor detects the voltage of photovoltaic generating system dc bus in real time
U PV, ultracapacitor voltage
U C1, batteries voltage
U B2Voltage with the reserve energy-storage system
U B3Calculate each energy-storage units operation control strategy of mixed energy storage system fast, by the running status of six insulated gate bipolar transistors (T0, T1, T2, T3, T4, T5) in the result of calculation real-time control circuit, make ultracapacitor, batteries and reserve energy-storage system time-division operation release the energy state in charging energy storage state or generating.Under the effect of charging in order, generating electricity at mixed energy storage system, no matter how sunlight, temperature, load change DC bus-bar voltage
U PVAll the time operate in the steady operation zone of satisfying the quality of voltage standard; Simultaneously, since the generating capacity of solar battery array with comprise that total electric power of mixed energy storage system remains matching status, the normal performance of effect total energy of DC/DC MPPT maximum power point tracking controller, no matter how illumination changes, photovoltaic battery array can operate in the maximum power output state, the running status of system is effectively regulated and control, and the efficiency of light energy utilization is improved.
The present invention is according to the ruuning situation of DC bus-bar voltage in the photovoltaic generating system, and to the mixed energy storage system that is made of ultracapacitor, batteries and the reserve energy-storage system optimal control of charging in order, generate electricity, this control method is carried out according to following steps:
A. status monitor detects the photo-voltaic power supply DC bus-bar voltage in real time
U PV, ultracapacitor voltage
U C1, batteries voltage
U B2, the reserve energy-storage system voltage
U B3, real-time judge goes out the generating and charging bearing capacity of each energy-storage units in the mixed energy storage system.
B. judge DC bus-bar voltage
U PVWhether operate in rated voltage
U N98%～102% scope in, if satisfy quality requirement then original state of a control is constant, proceed A step operation.
If DC bus-bar voltage C.
U PVDo not satisfy quality requirement, namely 98%
U N～102%
U NBeyond the scope, then carry out corresponding operating 1. following or 2..
If 1.
U PVBe lower than 98%
U N, judge mixed energy storage system current whether be charged state, be that charged state then reduces to charge duty ratio to reduce the charge power of mixed energy storage system, return steps A then.Be not that charged state is then carried out Generation Control, at first controlling an IGBT(is T0) break-make duty ratio increment ultracapacitor is increased to the dc bus through-put power; If this moment, ultracapacitor did not possess the generating bearing capacity, namely
U C1Be lower than 0.2 times of its maximum operating voltage, then changing control the 3rd IGBT(into is T2) break-make duty ratio increment batteries is increased to the through-put power of dc bus; If this moment, batteries did not possess the generating bearing capacity, namely
U B2Less than 0.8 times of its rated value, then changing control the 5th IGBT(into is T4) break-make duty ratio increment standby energy-storage system is increased to the through-put power of dc bus.Turn back to A step operation at last.
If 2.
U PVBe higher than 102%
U N, judge mixed energy storage system current whether be generating state, be that generating state then reduces to generate electricity duty ratio to reduce the generated output of mixed energy storage system, return steps A then.Be not the generating state control of then charging, at first controlling the 2nd IGBT(is T1) break-make duty ratio increment photo-voltaic power supply is increased to the charge power of ultracapacitor; If this moment, ultracapacitor did not possess the charging bearing capacity, namely
U C1Reach its maximum operating voltage, then changing control the 4th IGBT(into is T3) break-make duty ratio increment photo-voltaic power supply is increased to the charge power of batteries; If this moment, batteries did not possess the charging bearing capacity, namely
U B2Greater than 1.3 times of its rated value, then changing control the 6th IGBT(into is T5) break-make duty ratio increment, photo-voltaic power supply is increased to the charge power of standby energy-storage system.Turn back to A step operation at last.
D. mixed energy storage system is being discharged and recharged in the control procedure, the priority the during generating of three class energy-storage units is: ultracapacitor-batteries-reserve energy-storage system; Priority during charging is similarly: ultracapacitor-batteries-reserve energy-storage system.Duty ratio incremental computations method is:
,
K 1,
K 2Be the positive coefficient relevant with the carrier frequency of the voltage of dc bus rated voltage, current operation energy-storage units and control circuit.
This control sequence has realized the mutual supplement with each other's advantages of dissimilar energy-storage units easily, effectively prolonged mixed energy storage system the length of service, reduced energy-storage system investment and maintenance cost.By orderly generating, charging control to three class energy-storage units in the mixed energy storage system, the power imbalance problem between the power supply in the photovoltaic generating system and the load is resolved, and the stability of DC bus-bar voltage is effectively controlled.Photo-voltaic power supply under any circumstance all can send electric energy with its maximum generation ability, and its efficiency of light energy utilization has obtained effective raising.
This shows, no matter be the photovoltaic generating system of independent operating or the photovoltaic generating system of networking operation, as long as this mixed energy storage system is installed on the photovoltaic generating system dc bus, according to mixed energy storage system control method of the present invention DC bus-bar voltage is stablized control, the photo-voltaic power supply running status will obtain adjusting automatically, both guaranteed the power supply quality of power supply of power consumer, improved again photo-voltaic power supply the efficiency of light energy utilization, reduced the photovoltaic cost of electric energy, also can prolong the operation time limit of mixed energy storage system.
Claims (7)
1. photo-voltaic power supply mixed energy storage system, it is characterized in that, described energy-storage system comprises ultracapacitor (C1), batteries (B2), reserve energy-storage system (B3), three energy storage inductors, six IGBT and status monitors that have the inverse parallel fast recovery diode, described ultracapacitor (C1) is connected in series back one termination photo-voltaic power supply dc bus negative pole with first energy storage inductor (L1), the other end is respectively through an IGBT(T0) and the 2nd IGBT(T1) negative pole and the positive pole of photo-voltaic power supply dc bus connect, described batteries (B2) is connected in series back one termination photo-voltaic power supply dc bus negative pole with second energy storage inductor (L2), the other end is respectively through the 3rd IGBT(T2) and the 4th IGBT(T3) negative pole and the positive pole of photo-voltaic power supply dc bus connect, described reserve energy-storage system (B3) is connected in series back one termination photo-voltaic power supply dc bus negative pole with the 3rd energy storage inductor (L3), the other end is respectively through the 5th IGBT(T4) and the 6th IGBT(T5) negative pole and the positive pole of photo-voltaic power supply dc bus connect;
Described photo-voltaic power supply mixed energy storage system operates as follows:
In the photovoltaic generating system running, status monitor detects DC bus-bar voltage, ultracapacitor voltage, accumulator battery voltage and the reserve energy-storage system voltage of photo-voltaic power supply in real time, and adjusts the running status of mixed energy storage system by the following method according to the monitor value of each voltage:
If the DC bus-bar voltage of photo-voltaic power supply is at its rated value
U N98%～102% scope in, then original state of a control is constant;
When the DC bus-bar voltage of photo-voltaic power supply is lower than its rated value
U N98% o'clock, if mixed energy storage system current is charged state, then reduce the charge power of energy-storage system; If mixed energy storage system is current not to be charged state, then carry out Generation Control, energy-storage system is increased to the power of the dc bus transmission of photo-voltaic power supply;
When the DC bus-bar voltage of photo-voltaic power supply is higher than its rated value
U N102% o'clock, if mixed energy storage system current is generating state, then reduce the generated output of mixed energy storage system; Not the generating state control of then charging if mixed energy storage system is current, make photo-voltaic power supply to the charge power increase of energy-storage system.
2. a kind of photo-voltaic power supply mixed energy storage system according to claim 1, it is characterized in that, make mixed energy storage system to the method that the power of the dc bus of photo-voltaic power supply transmission increases be: at first to control an IGBT(T0) break-make duty ratio increment, ultracapacitor (C1) is increased to the power of the dc bus transmission of photo-voltaic power supply; If this moment, super capacitor electrode forced down in 0.2 times of its maximum operating voltage, then change control the 3rd IGBT(T2 into) break-make duty ratio increment, batteries (B2) is increased to the power of the dc bus of photo-voltaic power supply transmission; If this moment, accumulator battery voltage was less than 0.8 times of its specified electricity value, then change control the 5th IGBT(T4 into) break-make duty ratio increment, standby energy-storage system is increased to the power of the dc bus transmission of photo-voltaic power supply.
3. a kind of photo-voltaic power supply mixed energy storage system according to claim 1 and 2, it is characterized in that, make photo-voltaic power supply to the method that the charge power of mixed energy storage system increases be: at first to control the 2nd IGBT(T1) break-make duty ratio increment, photo-voltaic power supply is increased to the charge power of ultracapacitor (C1); If this moment, ultracapacitor voltage reached its maximum operating voltage, then change control the 4th IGBT(T3 into) break-make duty ratio increment, photo-voltaic power supply is increased to the charge power of batteries (B2); If this moment, accumulator battery voltage was greater than 1.3 times of its rated voltage, then change control the 6th IGBT(T5 into) break-make duty ratio increment, photo-voltaic power supply is increased to the charge power of standby energy-storage system.
4. a kind of photo-voltaic power supply mixed energy storage system according to claim 3 is characterized in that, described reserve energy-storage system (B3) is electrolytic hydrogen production-generating equipment.
5. a kind of photo-voltaic power supply mixed energy storage system according to claim 4 is characterized in that, when increasing the charge and discharge power of mixed energy storage system, and each IGBT break-make duty ratio increment
Computational methods be:
, wherein,
Be the photo-voltaic power supply DC bus-bar voltage,
K 1,
K 2Be the positive coefficient relevant with the carrier frequency of the voltage of dc bus rated voltage, current operation energy-storage units and control circuit.
6. a kind of photo-voltaic power supply mixed energy storage system according to claim 5 is characterized in that, also comprises voltage stabilizing electrochemical capacitor (C in the formation
P), described voltage stabilizing electrochemical capacitor (C
P) positive pole and the negative pole positive pole and the negative pole that connect the photo-voltaic power supply dc bus respectively.
7. a kind of photo-voltaic power supply mixed energy storage system according to claim 6 is characterized in that, is provided with fling-cut switch (K) between energy-storage system and photo-voltaic power supply dc bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147371.8A CN103236747B (en) | 2013-04-25 | 2013-04-25 | Photovoltaic power supply hybrid energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147371.8A CN103236747B (en) | 2013-04-25 | 2013-04-25 | Photovoltaic power supply hybrid energy storage system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103236747A true CN103236747A (en) | 2013-08-07 |
| CN103236747B CN103236747B (en) | 2015-02-25 |
Family
ID=48884772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310147371.8A Expired - Fee Related CN103236747B (en) | 2013-04-25 | 2013-04-25 | Photovoltaic power supply hybrid energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103236747B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457339A (en) * | 2013-09-02 | 2013-12-18 | 慈松 | Method and system for butt joint and configuration between multi-module backup battery management system and direct-current bus |
| CN103812225A (en) * | 2014-02-18 | 2014-05-21 | 东南大学 | Asymmetric chain type hybrid energy storage system and control method thereof |
| CN104079009A (en) * | 2014-07-14 | 2014-10-01 | 华北电力大学（保定） | Grid connection photovoltaic power direct current electric energy transmission control method |
| CN104283298A (en) * | 2014-09-28 | 2015-01-14 | 新疆希望电子有限公司 | Storage battery and super-capacitor hybrid energy storage charging and discharging current control method |
| CN105186673A (en) * | 2015-10-27 | 2015-12-23 | 厦门大学 | Multi-energy-storage solar charging station based on slide average filter |
| CN106230012A (en) * | 2016-09-19 | 2016-12-14 | 华北电力大学（保定） | Ultracapacitor and the Optimal Configuration Method of accumulator capacity in grid-connected photovoltaic system |
| CN106787707A (en) * | 2017-02-24 | 2017-05-31 | 上海交通大学 | Embedded accumulation energy type multimode tandem photovoltaic DC booster converter and application process |
| CN107785919A (en) * | 2017-09-22 | 2018-03-09 | 中节能工程技术研究院有限公司 | A kind of mixed energy storage system and its control method |
| CN108964081A (en) * | 2018-05-31 | 2018-12-07 | 湖北工业大学 | It is a kind of applied to stablize microgrid energy-storage system output circuit structure |
| CN113013866A (en) * | 2021-03-10 | 2021-06-22 | 杰华特微电子（杭州）有限公司 | Power supply system |
| WO2021232418A1 (en) * | 2020-05-22 | 2021-11-25 | 华为数字能源技术有限公司 | Charging control method, energy storage module and electric equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141998A1 (en) * | 2006-12-18 | 2008-06-19 | Ming-Hsin Sun | Maximum power point tracking system for the solar-supercapacitor power device and method using same |
| CN102931687A (en) * | 2012-10-12 | 2013-02-13 | 华北电力大学（保定） | Power adjustment method for hybrid energy storage photovoltaic power station |
| CN202906464U (en) * | 2012-03-09 | 2013-04-24 | 大连理工大学 | Active parallel mixed energy-storage device stabilizing fluctuated power of renewable energy |
-
2013
- 2013-04-25 CN CN201310147371.8A patent/CN103236747B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141998A1 (en) * | 2006-12-18 | 2008-06-19 | Ming-Hsin Sun | Maximum power point tracking system for the solar-supercapacitor power device and method using same |
| CN202906464U (en) * | 2012-03-09 | 2013-04-24 | 大连理工大学 | Active parallel mixed energy-storage device stabilizing fluctuated power of renewable energy |
| CN102931687A (en) * | 2012-10-12 | 2013-02-13 | 华北电力大学（保定） | Power adjustment method for hybrid energy storage photovoltaic power station |
Non-Patent Citations (2)
| Title |
|---|
| 张国驹等: "平抑间歇式电源功率波动的混合储能系统设计", 《电力系统自动化》, vol. 35, no. 20, 25 October 2011 (2011-10-25) * |
| 鲍雪娜等: "基于混合储能的并网光伏电站有功分级控制策略", 《电力系统自动化》, vol. 37, no. 1, 10 January 2013 (2013-01-10), pages 115 - 121 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457339A (en) * | 2013-09-02 | 2013-12-18 | 慈松 | Method and system for butt joint and configuration between multi-module backup battery management system and direct-current bus |
| CN103457339B (en) * | 2013-09-02 | 2016-08-10 | 慈松 | A kind of multimode reserce cell management system is docked and the method and system of configuration with dc bus |
| CN103812225A (en) * | 2014-02-18 | 2014-05-21 | 东南大学 | Asymmetric chain type hybrid energy storage system and control method thereof |
| CN103812225B (en) * | 2014-02-18 | 2016-06-22 | 东南大学 | A kind of asymmetric chain type mixed energy storage system and control method thereof |
| CN104079009A (en) * | 2014-07-14 | 2014-10-01 | 华北电力大学（保定） | Grid connection photovoltaic power direct current electric energy transmission control method |
| CN104283298A (en) * | 2014-09-28 | 2015-01-14 | 新疆希望电子有限公司 | Storage battery and super-capacitor hybrid energy storage charging and discharging current control method |
| CN105186673A (en) * | 2015-10-27 | 2015-12-23 | 厦门大学 | Multi-energy-storage solar charging station based on slide average filter |
| CN106230012A (en) * | 2016-09-19 | 2016-12-14 | 华北电力大学（保定） | Ultracapacitor and the Optimal Configuration Method of accumulator capacity in grid-connected photovoltaic system |
| CN106787707A (en) * | 2017-02-24 | 2017-05-31 | 上海交通大学 | Embedded accumulation energy type multimode tandem photovoltaic DC booster converter and application process |
| CN106787707B (en) * | 2017-02-24 | 2020-05-22 | 上海交通大学 | Embedded energy storage type multi-module tandem photovoltaic direct current boost converter and application method |
| CN107785919A (en) * | 2017-09-22 | 2018-03-09 | 中节能工程技术研究院有限公司 | A kind of mixed energy storage system and its control method |
| CN108964081A (en) * | 2018-05-31 | 2018-12-07 | 湖北工业大学 | It is a kind of applied to stablize microgrid energy-storage system output circuit structure |
| CN108964081B (en) * | 2018-05-31 | 2022-01-04 | 湖北工业大学 | Circuit structure applied to stabilizing output of micro-grid energy storage system |
| WO2021232418A1 (en) * | 2020-05-22 | 2021-11-25 | 华为数字能源技术有限公司 | Charging control method, energy storage module and electric equipment |
| CN114026766A (en) * | 2020-05-22 | 2022-02-08 | 华为数字能源技术有限公司 | Charging control method, energy storage module and electric equipment |
| CN113013866A (en) * | 2021-03-10 | 2021-06-22 | 杰华特微电子（杭州）有限公司 | Power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103236747B (en) | 2015-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103236747B (en) | Photovoltaic power supply hybrid energy storage system | |
| She et al. | On integration of solid-state transformer with zonal DC microgrid | |
| Zhang et al. | Research on battery supercapacitor hybrid storage and its application in microgrid | |
| CN202906464U (en) | Active parallel mixed energy-storage device stabilizing fluctuated power of renewable energy | |
| CN111276960B (en) | Energy storage module predictive control method in light-storage direct-current micro-grid system | |
| Belkaid et al. | Design and implementation of a cuk converter controlled by a direct duty cycle INC-MPPT in PV battery system | |
| CN101431246B (en) | Apparatus and method for improving output efficiency of low-power photovoltaic battery | |
| CN202586481U (en) | Micro electrical network intelligent balanced charging and power supply system | |
| CN108539729A (en) | The control method for coordinating of direct-current grid is stored up based on island mode light | |
| CN103390900A (en) | Distributed photovoltaic energy storage system and energy management method | |
| CN103545905A (en) | Photovoltaic direct-current micro-grid energy coordination control method | |
| CN102377192A (en) | Direct-driving wave power-generating and energy-storing device and control method | |
| CN102882370A (en) | Bidirectional two-input BUCK direct-current converter and power distribution method thereof | |
| CN106505602A (en) | A kind of control method of energy-storage system | |
| Glavin et al. | Battery management system for solar energy applications | |
| CN105576685A (en) | Energy storage system for new energy micro-grid | |
| CN114123449A (en) | Independent photovoltaic power generation energy storage system and energy management method | |
| CN201887525U (en) | Hybrid energy storage system for photovoltaic power generation system | |
| CN110138217B (en) | Three-port DC-DC converter and control method thereof | |
| CN108233713A (en) | A kind of non-isolated three-port DC switch converters and its control method | |
| CN103337868A (en) | Method and device for inhibiting photovoltaic generation output power fluctuation | |
| CN112104306B (en) | Mixed type flexible loop closing device and optical storage sharing interface control method | |
| Jin et al. | A new control strategy of dc microgrid with photovoltaic generation and hybrid energy storage | |
| CN108121393A (en) | A kind of accumulator charging maximum power point-tracing control method | |
| Jiao et al. | Analysis of two hybrid energy storage systems in an off-grid photovoltaic microgrid: A case study |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20170425 |