CN101728835A - Battery power energy storing device for smoothing output power of wind power generation - Google Patents
Battery power energy storing device for smoothing output power of wind power generation Download PDFInfo
- Publication number
- CN101728835A CN101728835A CN200910243412A CN200910243412A CN101728835A CN 101728835 A CN101728835 A CN 101728835A CN 200910243412 A CN200910243412 A CN 200910243412A CN 200910243412 A CN200910243412 A CN 200910243412A CN 101728835 A CN101728835 A CN 101728835A
- Authority
- CN
- China
- Prior art keywords
- power
- battery
- energy storing
- storing device
- wind
- 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.)
- Pending
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 12
- 238000009499 grossing Methods 0.000 title claims abstract description 8
- 238000004146 energy storage Methods 0.000 claims description 43
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 6
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims description 6
- 229910001416 lithium ion Inorganic materials 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000819 phase cycle Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 description 18
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery power energy storing device for smoothing the output power of wind power generation, and in particular relates to a battery power energy storing system for smoothing the output power of the wind power generation. The battery power energy storing device for smoothing the output power of the wind power generation comprises an energy storing battery pack and a monitoring system, wherein the power storing battery pack and an output circuit of a wind-electricity system are connected to an AC bus in parallel. The battery power energy storing device is characterized in that a power distribution device is connected between the energy storing battery pack and the AC bus; and the monitoring system is connected with an electric power protection device. The battery power energy storing device coordinates the output power of the wind power generation so that the battery power energy storing device effectively reduces the impact and the influence on a power network during wind power integration, enhances the consistency between the wind-electricity output power and a prediction, and ensures the credibility of an electric power supply. The energy storing device also reduces the spare capacity of an electric system, enhances the running economy of the electric system and improves the wind-electricity receiving capacity of the electric system.
Description
Technical field
The present invention relates to a kind of wind power generation energy-storage system, be specifically related to a kind of battery electric power energy-storage system of level and smooth output wind power generation power.
Background technology
Wind energy more and more is subjected to the attention of countries in the world as a kind of regenerative resource of cleaning.The Chinese feature energy storage capacity is very big, distribution is wide, and only the wind energy content of land is just had an appointment 2.53 hundred million kilowatts.In recent years, Zhong Guo grid connected wind power developed rapidly.Because wind energy randomness and intermittent characteristics, cause the frequent fluctuation of exerting oneself of wind-powered electricity generation unit, thereby the reliability of exerting oneself of wind energy turbine set is also poor, wind-powered electricity generation proportion is excessive, the frequency modulation, peak regulation pressure of electrical network are strengthened, and the specification requirement of electrical network long distance power delivery and operating cost sharply increase.Therefore, the wind energy turbine set operation that inserts electric power system of being incorporated into the power networks on a large scale also brings some new problems:
(1) randomness of wind-powered electricity generation and uncontrollability bring new challenge for power system planning and stable operation;
(2) wave characteristic of wind power and the wave characteristic of network load are difficult to consistently, make the peaking problem of electrical network more outstanding, and peak and response speed are all had higher requirement;
(3) because wind speed changes, and the wind-powered electricity generation unit causes line voltage and power fluctuation problem easily, and by its reactive power of bringing and power quality problem.
Energy storage technology in the electric power system at present is for solving some existing issues that exist in the power supply chain (fuel, generating, transmission of electricity, distribution and electricity consumption) and realizing that the electrical network sustainable development provides brand-brand-new way, adopt extensive electric power energy storage technology, can effectively alleviate the electricity consumption imbalance between supply and demand, improve power grid security and stability, improve power supply quality, and can promote the utilization and the development of regenerative resource.
Summary of the invention
For solving the problem of wind-powered electricity generation generated output short-term fluctuation in the prior art, the invention provides a kind of battery power energy storing device that can smoothing output power of wind power generation, concrete scheme is as follows: a kind of battery power energy storing device of smoothing output power of wind power generation, comprise energy-storage battery group and supervisory control system, energy-storage battery group and wind power system outlet line are connected in parallel on the ac bus, it is characterized in that, be connected with power distribution equipment between energy-storage battery group and the ac bus, supervisory control system is connected with the electric power safeguard device.
Another optimal way of the present invention: described energy-storage battery group comprises the sub-battery pack of a plurality of parallel connections and/or series connection, and described sub-battery pack comprises the cell of a plurality of parallel connections and/or series connection.
Another optimal way of the present invention: described cell comprises flow battery, sodium-sulphur battery, lithium ion battery, battery types in each sub-battery pack is identical, described flow battery connects the handpiece Water Chilling Units of promising electrolyte temperature adjustment, described sodium-sulphur battery is connected with the heating power supply that guarantees its internal temperature, and described lithium ion battery is connected with temperature alarming and Smoke Sensor.
Another optimal way of the present invention: described energy-storage battery group comprises dilatation interface and communication interface.
Another optimal way of the present invention: be connected with current transformer between described energy-storage battery group and the power distribution equipment.
Another optimal way of the present invention: described current transformer has a plurality of and is connected with each sub-battery pack respectively.
Another optimal way of the present invention: described current transformer is AD/DC modular converter and/or DC/DC modular converter.
Another optimal way of the present invention: described electric power safeguard device is made up of ups power, and described power distribution equipment is the box type transformer that boosts.
Another optimal way of the present invention: described sub-battery pack is equipped with the low pressure relay protection device, comprises mainly possessing following defencive function: functions such as overload protection, short-circuit protection, overtemperature prote, underfrequency protection, under-voltage protection, low-voltage variation, phase unbalance protection, carrier current protection and phase sequence, ground protection.
The present invention coordinates output power of wind power generation by energy storage device, when not only effectively reducing wind-electricity integration to the impact and the influence of electrical network, also improve the consistency of wind-powered electricity generation power output and prediction, ensure the confidence level of power supply, energy storage device has also reduced the reserve capacity of electric power system, improve the economy of power system operation, improve the ability that wind-powered electricity generation is admitted in electric power system simultaneously.For influence and the Corresponding Countermeasures of grid connected wind power field, be the orderly development of grid connected wind power, and the extensive use of energy storage in renewable generating lays the foundation to electrical network.Utilization can be integrated and use the number of different types cell, utilizes current transformer to guarantee the balance of voltage of output voltage and ac bus, utilizes the electric power safeguard device that the operating position of energy-storage battery group can the Be Controlled system be grasped all the time.
Description of drawings
Fig. 1 energy storage device connection diagram of the present invention
Embodiment
This energy storage device is mainly used in short-term (below the tens of minutes) fluctuation of smooth wind power field, or cooperate auxiliary output according to the output power curve of wind energy turbine set prediction, make the output of wind power system power approaching consistent with prediction in advance, improve the power output confidence level and the consistency ability of wind power system, energy storage device can also be carried out the every combination experiment with wind-powered electricity generation unit or wind-powered electricity generation cluster, and considers the idle regulatory demand of wind-powered electricity generation unit.
As shown in Figure 1, the energy-storage battery group 1 and wind power system 5 outlet lines of energy storage device are connected in parallel on the ac bus 4, power distribution equipment 6 is installed between energy-storage battery group and ac bus, power distribution equipment adopts the box type transformer that boosts, supervisory control system 2 plays the power smooth adjustment by calling the output of energy storage device power to the wind power system power output.
The energy-storage battery group is according to the energy-storage battery characteristics, be further divided into a plurality of sub-battery pack, in each sub-battery pack, is furnished with high-voltage switch gear, the switch mode different according to the high-voltage switch gear group, energy storage device and wind-powered electricity generation unit are on same ac bus, can constitute sub-battery pack and the wind-powered electricity generation unit carries out independent combination, also can constitute the combination of whole energy storage device and wind-powered electricity generation unit and/or wind-powered electricity generation cluster.Each sub-battery pack 8 all is furnished with a 380V low-voltage relay and a current transformer 7, current transformer is by the AC/DC modular converter, the DC/DC modular converter is formed, AC side AC/DC modular converter adopts the three-phase voltage source rectifier, realize the bidirectional active rectification function, owing to require the electric current of energy storage device in its main circuit, to have two-way flow, make the AC/DC modular converter can work in different states, hand over so adopt, the convertor assembly of the four quadrant running that DC side is controlled, when rectifier when electrical network absorbs energy, it just operates in rectification state, otherwise when the electrical network transmission of power, rectifier just works in active contrary state as if rectifier.
Because the DC bus-bar voltage after the rectification is all about 600V, and monomer battery voltage is lower, after connecting generally between 200V～600V, therefore there is a little battery pack to need the DC/DC modular converter to carry out the voltage adjustment, DC side adopts the topological structure of two-way DC/DC modular converter, realize DC decompression, boost function, realize Buck step-down or Boost boost mode by two-way DC/DC modular converter main circuit.
Sub-battery pack in each energy-storage battery group can adopt parallel way to link together; also can adopt series system to link together; also can coexist in two ways; each sub-battery pack can be classified according to the type of cell; each cell in the sub-battery pack also can adopt the mode of parallel connection and/or series connection to link together; the type of cell comprises flow battery; sodium-sulphur battery; lithium ion battery etc.; in order to guarantee the normal operation of all types of batteries; need be according to the different characteristics of all types of batteries; battery maintenance system and protection system are provided; for flow battery; is furnished with handpiece Water Chilling Units for the electrolyte temperature adjustment; for sodium-sulphur battery,, is furnished with heating power supply for guaranteeing its internal temperature; for lithium ion battery; be furnished with warning systems such as temperature alarming and Smoke Sensor, simultaneously, supervisory control system 2 can realize the electric current of cell; voltage; SOC; the isoparametric measurement of internal resistance and reporting.
In order to guarantee the safe operation of each sub-battery pack; various low pressure relay protection devices are installed in each sub-battery pack, are mainly possessed following defencive function: functions such as overload protection, short-circuit protection, overtemperature prote, underfrequency protection, under-voltage protection, low-voltage variation, phase unbalance protection, carrier current protection and phase sequence, ground protection.
For guarantee energy storage device can adapt to after being incorporated into the power networks of more windy electricity, on energy storage device, leave dilatation interface 9, when energy storage device can not adapt to the development of electrical network, only need to insert again one or more sub-battery pack and can realize capacity increase.
Energy storage device is equipped with a plurality of different communication interfaces, communication interface is connected with the supervisory control system of whole energy storage device, provide energy storage device current various data to supervisory control system, these data comprise actual power power, capacity, line status, electric current, active power, reactive power, power coefficient and mean value, by PLC automatic or manual control distribution switchgear.Supervisory control system realizes having that power output is regulated, battery system management, blower fan generating real time data sampling, data upload, communications protocol conversion, calculating functions such as interchange that converter control needs, direct current command value of energy storage device by the data of collecting, and the load tap changer of control energy storage device and the control signal of circuit breaker.
In order to guarantee that supervisory control system under any circumstance all manages and controls energy storage device, be equipped with the electric power safeguard device of forming by a plurality of ups powers 3.
Claims (9)
1. the battery power energy storing device of a smoothing output power of wind power generation, comprise energy-storage battery group (1) and supervisory control system (2), energy-storage battery group and wind power system (5) outlet line is connected in parallel on the ac bus (4), it is characterized in that, be connected with power distribution equipment (6) between energy-storage battery group and the ac bus, supervisory control system (2) is connected with electric power safeguard device (3).
2. battery power energy storing device as claimed in claim 1 is characterized in that, described energy-storage battery group comprises the sub-battery pack (8) of a plurality of parallel connections and/or series connection, and described sub-battery pack comprises the cell of a plurality of parallel connections and/or series connection.
3. battery power energy storing device as claimed in claim 2, it is characterized in that, described cell comprises flow battery, sodium-sulphur battery, lithium ion battery, battery types in each sub-battery pack is identical, described flow battery connects the handpiece Water Chilling Units of promising electrolyte temperature adjustment, described sodium-sulphur battery is connected with the heating power supply that guarantees its internal temperature, and described lithium ion battery is connected with temperature alarming and Smoke Sensor.
4. battery power energy storing device as claimed in claim 1 is characterized in that, described energy-storage battery group comprises dilatation interface (9) and communication interface.
5. battery power energy storing device as claimed in claim 1 is characterized in that, is connected with current transformer between described energy-storage battery group and the power distribution equipment.
6. battery power energy storing device as claimed in claim 5 is characterized in that, described current transformer (7) has a plurality of and is connected with each sub-battery pack respectively.
7. battery power energy storing device as claimed in claim 6 is characterized in that, described current transformer is AD/DC modular converter and/or DC/DC modular converter.
8. battery power energy storing device as claimed in claim 1 is characterized in that, described electric power safeguard device (3) is made up of ups power, and described power distribution equipment is the box type transformer that boosts.
9. battery power energy storing device as claimed in claim 1; it is characterized in that; described sub-battery pack is equipped with the low pressure relay protection device, comprises mainly possessing following defencive function: functions such as overload protection, short-circuit protection, overtemperature prote, underfrequency protection, under-voltage protection, low-voltage variation, phase unbalance protection, carrier current protection and phase sequence, ground protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243412A CN101728835A (en) | 2009-12-21 | 2009-12-21 | Battery power energy storing device for smoothing output power of wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243412A CN101728835A (en) | 2009-12-21 | 2009-12-21 | Battery power energy storing device for smoothing output power of wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101728835A true CN101728835A (en) | 2010-06-09 |
Family
ID=42449271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910243412A Pending CN101728835A (en) | 2009-12-21 | 2009-12-21 | Battery power energy storing device for smoothing output power of wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101728835A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917014A (en) * | 2010-08-20 | 2010-12-15 | 河海大学 | Accumulator charging and discharging control method for smoothening power fluctuation of wind power station |
| CN102237688A (en) * | 2011-07-04 | 2011-11-09 | 牟镠峰 | Method and equipment for controlling energy storage device |
| CN102315648A (en) * | 2011-09-05 | 2012-01-11 | 上海市电力公司 | 100-kilowatt nickel-hydrogen energy storage monitoring system and monitoring method thereof |
| WO2012065355A1 (en) * | 2010-11-19 | 2012-05-24 | 上海市电力公司 | Nickel-metal hydride battery energy storage monitoring system |
| CN103051018A (en) * | 2012-12-06 | 2013-04-17 | 中国电力科学研究院 | Battery energy storage system control method for improving wind power controllability |
| CN103986174A (en) * | 2014-05-29 | 2014-08-13 | 国家电网公司 | Energy storage converter parallel operation optimizing control method in three-phase imbalance system |
| CN104779658A (en) * | 2014-12-31 | 2015-07-15 | 国家电网公司 | Communication management and power control simulation system of multi-type battery energy storage system |
-
2009
- 2009-12-21 CN CN200910243412A patent/CN101728835A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917014A (en) * | 2010-08-20 | 2010-12-15 | 河海大学 | Accumulator charging and discharging control method for smoothening power fluctuation of wind power station |
| WO2012065355A1 (en) * | 2010-11-19 | 2012-05-24 | 上海市电力公司 | Nickel-metal hydride battery energy storage monitoring system |
| CN102237688A (en) * | 2011-07-04 | 2011-11-09 | 牟镠峰 | Method and equipment for controlling energy storage device |
| CN102315648A (en) * | 2011-09-05 | 2012-01-11 | 上海市电力公司 | 100-kilowatt nickel-hydrogen energy storage monitoring system and monitoring method thereof |
| CN102315648B (en) * | 2011-09-05 | 2014-06-04 | 上海市电力公司 | 100-kilowatt nickel-hydrogen energy storage monitoring system and monitoring method thereof |
| CN103051018A (en) * | 2012-12-06 | 2013-04-17 | 中国电力科学研究院 | Battery energy storage system control method for improving wind power controllability |
| CN103051018B (en) * | 2012-12-06 | 2014-03-12 | 中国电力科学研究院 | Battery energy storage system control method for improving wind power controllability |
| CN103986174A (en) * | 2014-05-29 | 2014-08-13 | 国家电网公司 | Energy storage converter parallel operation optimizing control method in three-phase imbalance system |
| CN104779658A (en) * | 2014-12-31 | 2015-07-15 | 国家电网公司 | Communication management and power control simulation system of multi-type battery energy storage system |
| CN104779658B (en) * | 2014-12-31 | 2017-11-03 | 国家电网公司 | Polymorphic type battery energy storage system communication management and Power Control simulation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102738836B (en) | Alternating current and direct current hybrid micro power grid system and control method thereof | |
| CN103595063B (en) | A kind of energy accumulation current converter and battery energy storage system thereof | |
| WO2018103232A1 (en) | Control method for new energy micro-grid electric vehicle charging station | |
| CN103595138B (en) | A kind of smart micro-grid system | |
| CN103427430B (en) | A kind of energy management method of mixed energy storage system in microgrid | |
| CN203690940U (en) | Nested-type microgrid system | |
| CN108649602A (en) | Wind-solar-diesel storage intelligent AC micro-grid system | |
| CN203481919U (en) | Microgrid experimental platform capable of being automatically and seamlessly switched between grid-connected mode and grid-isolated mode | |
| CN102916481A (en) | Direct-current microgrid system and energy management method thereof | |
| CN104281977A (en) | Hybrid microgrid application platform and control method theref | |
| CN105932779A (en) | Energy router-based micro-grid | |
| CN203312825U (en) | Off-grid distributed power supply system | |
| CN101728835A (en) | Battery power energy storing device for smoothing output power of wind power generation | |
| CN102856921A (en) | Wind power generation grid connection stored energy adjusting device | |
| CN108347067B (en) | Micro-grid architecture containing battery energy storage and generator and control method | |
| WO2019075879A1 (en) | Running mode conversion method for alternating-current/direct-current hybrid microgrid | |
| CN112909914A (en) | Intelligent direct-current micro-grid system suitable for building comprehensive energy supply station | |
| CN102496961A (en) | Direct-current-bus-based wind-solar independent power grid system | |
| CN202435050U (en) | Distributed energy storage system of wind power station | |
| CN112636385A (en) | Micro-grid control method and system for multi-energy-flow complementary control | |
| CN113595146A (en) | Photovoltaic energy storage direct current intelligent micro-grid monitoring management system | |
| CN202405799U (en) | Independent wind-power grid system based on direct current bus | |
| CN108288860A (en) | A kind of novel energy-storing power station | |
| CN117595221A (en) | Shipborne electricity direct current networking system and data acquisition and communication method thereof | |
| Xu et al. | Energy management and control strategy for DC micro-grid in data center |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130129 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100609 |