CN110161991A - A kind of super capacitor mould group backup power supply distributed management system for pitch system of wind driven generator - Google Patents
A kind of super capacitor mould group backup power supply distributed management system for pitch system of wind driven generator Download PDFInfo
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- CN110161991A CN110161991A CN201910373650.3A CN201910373650A CN110161991A CN 110161991 A CN110161991 A CN 110161991A CN 201910373650 A CN201910373650 A CN 201910373650A CN 110161991 A CN110161991 A CN 110161991A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 85
- 239000000178 monomer Substances 0.000 claims abstract description 28
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 230000006855 networking Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 33
- 238000010586 diagram Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000013500 data storage Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41835—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by programme execution
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25232—DCS, distributed control system, decentralised control unit
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a kind of super capacitor mould splits cloth backup power supply management systems for pitch system of wind driven generator, including backup power supply management station, super capacitor mould group, mould group management substation, four part of CAN bus；Using CAN bus networking mode, backup power supply management station and N number of mould group management substation, SCADA system constitute backup power supply distributed management system；Using two-stage active balancer system, realize in mould group between super capacitor monomer, the active between mould group is pressed；Mould group management substation acquires voltage, electric current, temperature and the environment temperature of super capacitor monomer in super capacitor mould group in real time, and mould group remaining capacity, prediction mould group remaining life are estimated by algorithm routine, beneficial effects of the present invention: real-time management is carried out to the super capacitor mould group backup power supply of pitch system of wind driven generator, improve backup power supply service life, ensure that wind-driven generator is safe and reliable, operation is efficient, and scalability is good, easy to maintain.
Description
Technical field
It is especially a kind of for pitch system of wind driven generator the invention belongs to super capacitor mould group power-supply management system
Super capacitor mould group backup power supply distributed management system.Background technique
Wind-driven generator controls position angle of the blade relative to Plane of rotation by pitch-controlled system, for different air rate adjustment leaves
Piece obtains maximum safe electric energy to wind angle.In normal mode, pitch-controlled system is powered by power grid, but wind-power electricity generation
Machine happens suddenly grid voltage sags in operation, if in the case without backup power source, wind-driven generator variable propeller pitch system can not be
It is worked normally under low voltage situations, on the one hand affects the output power of blower, and then reduce grid stability；On the other hand, exist
In the case where encountering superelevation wind speed, if wind-driven generator, which can not be successfully, reaches safe feathering state, wind-driven generator be likely to by
Blow down, causes serious accident.Therefore, pitch system of wind driven generator is furnished with backup power supply, is mainly used in network voltage
Fall or superelevation wind speed grid cut-off in the case of emergency feathering, it is ensured that the safe operation of wind-driven generator.
Lead-acid accumulator is the common battery of pitch system of wind driven generator backup power source, is former using electrochemical reaction
Reason carries out charge and discharge, and capacity after cycle life, deep discharge replys, high temperature performance and in terms of charge and discharge process
There is certain limitations.Further, since the power density of lead-acid accumulator is small, equal series resistance is larger, high-power puts
Electric scarce capacity causes lead-acid accumulator to will appear the phenomenon that end voltage seriously falls in heavy-current discharge, and scraps lead
The environmentally protective processing of acid accumulator.The environmentally protective recycling of lead-acid accumulator and comprehensive utilization difficulty are big, costly.And it is super
Capacitor is the interfacial bilayer by being formed between electrode and electrolyte come the new component of storage energy, and thermal energy storage process is not
It chemically reacts, and thermal energy storage process is reversible, therefore supercapacitor charges repeatedly and can achieve hundreds of thousands of times, and will not
It pollutes.In addition, its power density is high, it is suitable for short time high-power output, charging rate is fast.The variable pitch of wind-driven generator
Belong to intermittent exercise, and uses power supply after only just enabling in grid voltage sags or superelevation wind speed grid cut-off, because
This, for pitch-controlled system standby lead-acid accumulator, long-term intermittent sex work intensity is big, will lead to the contracting of itself service life
It is short.Every few years will be repaired and be replaced to the backup battery of each wind-driven generator thus, costly.And it is big
Power ultracapacitor has charge and discharge fast, the characteristics of having extended cycle life, therefore the super capacitor mould group being made of its series connection
Gradually instead of lead-acid accumulator, although early investment higher cost, frequent maintenance and replacement battery expense can be reduced, and
Scrap post-processing can also accomplish it is environmentally protective.
Currently, equipped with super capacitor mould group backup power supply wind-driven generator SCADA data acquire and monitoring system
In only super capacitor mould group voltage is monitored, and to the voltage of monomer, temperature in super capacitor mould group charging and discharging currents, mould group
Degree is not detected, to cannot achieve monomer and remaining capacity (SOC) estimation of mould group, predicting residual useful life, failure
Active between diagnosis, monomer and between mould group is pressed, and the remaining capacity and property that cannot understand backup power supply in time are caused
Can, potential risk is caused to wind-driven generator emergency feathering.Therefore, it develops a kind of for the super of pitch system of wind driven generator
Electric capacity module backup power supply distributed management system is very necessary.
Summary of the invention
In order to overcome problem described above, the invention discloses a kind of super electricity for pitch system of wind driven generator
Molar group backup power supply distributed management system.
The technical scheme is that a kind of super capacitor mould group backup power supply for pitch system of wind driven generator point
Cloth management system, including backup power supply management station, super capacitor mould group, mould group management substation, CAN bus；Wind-driven generator
The backup power supply of pitch-controlled system is connected in series by N number of super capacitor mould group, each mould group accesses a mould group and manages substation；
This system uses the distributed frame of CAN bus networking, and backup power supply management station and N number of mould group management substation pass through CAN bus
Connect and compose backup power supply management system；The SCADA system of backup power supply management station and wind-driven generator is connected by CAN bus
It connects.
In the present invention, the super capacitor mould group backup power supply distributed pipes for pitch system of wind driven generator
Reason system, it is characterized in that: the backup power supply management station includes master controller I, mould group equalizer circuit, CAN transmission circuit I；
Master controller I receives each mould group admin site data by CAN transmission circuit I, and carries out Correlation method for data processing and analysis, calculates
The data for needing to monitor are sent into SCADA system, the also controllable equal piezoelectricity of molding group by remaining capacity, the remaining life of backup power supply
Road, charging unit carry out pressure and automatic charging between mould group.
In the present invention, the super capacitor mould group backup power supply distributed management for pitch system of wind driven generator
System, it is characterized in that: mould group management substation includes master controller II, super capacitor monomer voltage Acquisition Circuit, electric current inspection
Slowdown monitoring circuit, super capacitor monomer equalizer circuit, temperature sensing circuit, warning circuit, program and data storage, power circuit；
Mould group manages voltage, temperature, electric current and the environment temperature of super capacitor monomer in substation real-time monitoring super capacitor mould group；It is main
Controller II is using the data acquired, by super capacitor residual capacity algorithm, super capacitor life prediction algorithm respectively to mould
Remaining capacity, the remaining life of the monomer of group are estimated, temperature compensation coefficient are drawn in estimation process, and then calculate depanning group
Remaining capacity and remaining life.
In the present invention, the mould group manages substation, it is characterized in that: the super capacitor monomer equalizer circuit, packet
Include super capacitor gating switching module, electricity transferring device II；Master controller II controls super capacitor and gates switching module, realizes
Electric voltage equalization in mould group between super capacitor monomer.
In the present invention, the backup power supply management station, it is characterized in that: the mould group equalizer circuit, including mould group
Switching module, electricity transferring device I are gated, master controller I controls mould group and gates switching module, realizes that the voltage between mould group is equal
Weighing apparatus.
In the present invention, the super capacitor mould group backup power supply distributed pipes for pitch system of wind driven generator
Reason system, it is characterized in that: the algorithm routine being embedded in based on the residual capacity algorithm by super capacitor is integrated with electric current, electricity
Processing subroutine, SOC estimation subprogram and temperature compensation coefficient counting subroutine are pressed, estimates mould group SOC；It is described with super electricity
Hold the algorithm routine being embedded in based on life prediction algorithm and is integrated with electric current, voltage processing subroutine, efficiency for charge-discharge calculating
Program, Ratio for error modification counting subroutine and life prediction subprogram predict mould group remaining life.
Detailed description of the invention
Fig. 1 is overall system diagram of the invention.
Fig. 2 is backup power supply management station embodiment block diagram of the invention.
Fig. 3 is mould group management substation embodiment block diagram of the invention.
Fig. 4 is the program embodiment block diagram of insertion super capacitor SOC estimating algorithm of the invention.
Fig. 5 is the program embodiment block diagram of insertion super capacitor life prediction algorithm of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to attached drawing, Fig. 1 is overall system diagram of the invention, a kind of super electricity for pitch system of wind driven generator
Molar group backup power supply distributed management system, including backup power supply management station, super capacitor mould group, mould group management substation, CAN
Four part of bus；The backup power supply of pitch system of wind driven generator is connected in series by N number of super capacitor mould group, each mould group
Access a mould group management substation；This system uses the distributed frame of CAN bus networking, backup power supply management station and N number of mould
Group management substation, SCADA system are connected by CAN bus；Backup power supply management station collects each mould group management substation related data,
And data process&analysis is carried out, remaining capacity, the remaining life of backup power supply are calculated, the data monitored will be needed to pass through CAN
Bus is sent into SCADA system, and also controllable molding group equalizer circuit, charging unit carry out the pressure between mould group and fill automatically
Electricity；Mould group manages voltage, temperature, electric current and the environment temperature of super capacitor monomer in substation real-time monitoring super capacitor mould group
Degree, control super capacitor gate switching module, realize the electric voltage equalization in mould group between super capacitor monomer, and utilization is collected
Data using the remaining capacity of monomer in super capacitor residual capacity algorithm estimation mould group, while calculating depanning group remaining capacity,
Remaining life is estimated using super capacitor life prediction algorithm, while obtaining depanning group remaining life.
Attached drawing 2 is backup power supply management station embodiment block diagram of the present invention, and the backup power supply management station includes main control
Device I, mould group equalizer circuit, CAN transmission circuit I；The master controller I uses STC15 series monolithic；Mould group equalizer circuit packet
Mould group gating switching module, electricity transferring device I are included, master controller I receives the mould group of each mould group admin site by CAN bus
Real-time voltage, control mould group gate switching module, and the first highest mould group of gate voltage is connected with electricity transferring device I, by part
Electricity is transferred to electricity transferring device I, and then the minimum mould group of gate voltage is connected with electricity transferring device I, and electricity is shifted
The electric energy transfer stored in device I is into the minimum mould group of voltage, to realize the electric voltage equalization between two mould groups；CAN transmitting-receiving electricity
The transmitting-receiving of CAN bus data is completed on road I, realizes that backup power supply management station and the data of each mould group management substation, SCADA system hand over
Mutually；Master controller I manages mould group real-time voltage, the remaining capacity, remaining life of substation according to each mould group, calculates backup power supply
Voltage, remaining capacity, remaining life, and control charging unit, realize and automatic charging is carried out to backup power supply, while will need
The data of monitoring are sent into SCADA system and carry out Centralized Monitoring.
Attached drawing 3 is mould group of the present invention management substation embodiment block diagram, the mould group management substation include master controller II,
Super capacitor monomer voltage Acquisition Circuit, current detection circuit, super capacitor monomer equalizer circuit, temperature sensing circuit, alarm
Circuit, program and data storage, power circuit；The master controller II uses STC15 series monolithic；Master controller II is adopted
Collect each circuit detection data, and carries out relevant treatment and parameter calculating；Super capacitor monomer voltage Acquisition Circuit uses voltage
Sensor acquires the voltage of each monomer and the real-time voltage of super capacitor mould group in mould group, and current detection circuit is with electricity
Flow sensor acquires the real-time current of mould group, provides electricity for the status tracking of backup power supply, remaining capacity estimation, life estimation
Pressure, current data；Temperature sensing circuit acquires the real time temperature and external environment of each monomer with temperature sensor
Temperature provides temperature data for power supply status tracking, and remaining capacity estimation provides temperature-compensating；Super capacitor monomer equalizer circuit
Switching module, electricity transferring device are gated including super capacitor, master controller II collects monomer voltage in super capacitor mould group,
It controls super capacitor and gates switching module, first gate the highest capacitor of voltage and II phase of electricity transferring device in super capacitor mould group
Even, part electricity is transferred to electricity transferring device II, then gates the capacitor and electricity that voltage is minimum in super capacitor mould group
Transferring device II is connected, by the electric energy transfer stored in electricity transferring device into the minimum capacitor of voltage, to realize two capacitors
Between electric voltage equalization be that the safety of backup power supply, reliability provide safeguard；The warning circuit is used for abnormal conditions
Or malfunction is alarmed；The program and data storage is used to record and save the data of each acquisition parameter, right
The assessment of mould group provides data reference；The power circuit is used to system power supply being converted into electricity required for each circuit module
Pressure.
Attached drawing 4 is the program embodiment block diagram of present invention insertion super capacitor SOC estimating algorithm, the super electricity of the insertion
The program for holding SOC estimating algorithm is integrated with electric current, voltage processing subroutine, SOC estimation subprogram and temperature compensation coefficient and calculates
Subprogram；The relevant parameter that substation acquisition is managed according to mould group, into electric current, voltage processing subroutine, after processed
Parameter value enter SOC estimation subprogram, temperature compensation coefficient is then calculated to SOC by temperature compensation coefficient counting subroutine
Value compensates, and obtains the last SOC value of depanning group.
Attached drawing 5 is the program embodiment block diagram of present invention insertion super capacitor life prediction algorithm；The insertion is super
The program of capacitor life prediction algorithm is integrated with electric current, voltage processing subroutine, efficiency for charge-discharge counting subroutine, error correction
Coefficient counting subroutine and life prediction subprogram；The relevant parameter that substation acquisition is managed according to mould group, at electric current, voltage
Subprogram is managed, enters efficiency for charge-discharge counting subroutine further according to the parameter value after processed, judges whether efficiency for charge-discharge is low
Ratio for error modification is obtained subsequently into Ratio for error modification counting subroutine in critical value, finally enters the sub- journey of life prediction
Sequence obtains remaining life.
Beneficial effects of the present invention: the super capacitor mould group backup power supply of pitch system of wind driven generator is managed in real time
Reason can guarantee wind-driven generator in emergency circumstances safe feathering, improve wind-driven generator security reliability, operation high efficiency；It adopts
Backup power supply management system is constructed with mould splits cloth structure, scalability is good, adapts to any number of mould group institute groups of variety classes
At backup power supply, and it is easy to maintain；Using two-stage active balancer system, backup power supply service life is improved.
The foregoing is merely presently preferred embodiments of the present invention and oneself, be not intended to limit the invention, it is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of super capacitor mould splits cloth backup power supply management system for pitch system of wind driven generator, including standby
Power management station, super capacitor mould group, mould group manage substation, four part of CAN bus, it is characterized in that: using CAN bus networking side
Formula, 1 backup power supply management station and N number of mould group management substation constitute backup power supply distributed management system；Actively using two-stage
Balancer system, the active carried out in mould group between super capacitor monomer in each mould group management substation is pressed, in backup power supply pipe
The active carried out between mould group in reason station is pressed；Backup power supply management station receives each mould group admin site data by CAN bus,
And data process&analysis is carried out, the active between control mould group equalizer circuit, charging unit progress mould group is pressed and standby
The automatic charging of power supply, while being connected by CAN bus and the SCADA system of wind-driven generator by CAN bus, carry out data
Interaction；Mould group management substation acquire in real time the voltage of super capacitor monomer in super capacitor mould group, temperature, charging and discharging currents and
Environment temperature is estimated mould group remaining capacity using super capacitor residual capacity algorithm, is obtained using super capacitor life prediction algorithm
Depanning group remaining life.
2. the super capacitor mould splits cloth backup power supply pipe according to claim 1 for pitch system of wind driven generator
Reason system, it is characterized in that: the backup power supply management station includes master controller I, mould group equalizer circuit, CAN transmission circuit I,
Mould group equalizer circuit includes mould group gating switching module, electricity transferring device I, and master controller I controls mould group and gates switching module,
The first highest mould group of gate voltage is connected with electricity transferring device I, and part electricity is transferred to electricity transferring device I, is then selected
It is powered and minimum mould group is pressed to be connected with electricity transferring device I, the electric energy transfer stored in electricity transferring device I is minimum to voltage
Mould group in, with realize two mould groups between active press；Master controller I controls charging unit, realizes and carries out to backup power supply
Automatic charging, while the data for needing to monitor are sent into SCADA system and carry out Centralized Monitoring.
3. the super capacitor mould splits cloth backup power supply pipe according to claim 1 for pitch system of wind driven generator
Reason system, it is characterized in that: described mould group management substation acquired by super capacitor monomer voltage Acquisition Circuit it is each in mould group
The voltage of a super capacitor monomer, and the real-time voltage of super capacitor mould group is calculated, mould group is acquired by current detection circuit
Real-time current, provide voltage, electricity for the status tracking of backup power supply, remaining capacity estimation, predicting residual useful life, fault diagnosis
Flow data acquires the real time temperature of each monomer and the temperature of external environment by temperature sensing circuit, is remaining capacity
Estimation provides temperature-compensating；Super capacitor monomer equalizer circuit includes super capacitor gating switching module, electricity transferring device, main
Controller II collects monomer voltage in super capacitor mould group, and control super capacitor gates switching module, first gates super capacitor
The highest capacitor of voltage is connected with electricity transferring device II in mould group, part electricity is transferred to electricity transferring device II, then
The minimum capacitor of voltage is connected with electricity transferring device II in gating super capacitor mould group, the electricity that will be stored in electricity transferring device
It can be transferred in the minimum capacitor of voltage, to realize that the active between two super capacitors is pressed.
4. the super capacitor mould splits cloth backup power supply pipe according to claim 1 for pitch system of wind driven generator
Reason system, it is characterized in that: the mould group management substation estimates that mould group is surplus by the program of insertion super capacitor SOC estimating algorithm
Remaining electricity carries out temperature-compensating by calculating temperature compensation coefficient in estimation process, obtains more accurate SOC value；By embedding
The program prediction mould group service life for entering super capacitor life prediction algorithm carries out error correction by calculating Ratio for error modification, obtains
More accurate predicted value out.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910373650.3A CN110161991A (en) | 2019-05-07 | 2019-05-07 | A kind of super capacitor mould group backup power supply distributed management system for pitch system of wind driven generator |
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| CN201910373650.3A CN110161991A (en) | 2019-05-07 | 2019-05-07 | A kind of super capacitor mould group backup power supply distributed management system for pitch system of wind driven generator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110716148A (en) * | 2019-10-18 | 2020-01-21 | 兰州交通大学 | Real-time safety monitoring system for composite power energy storage |
| CN110991076A (en) * | 2019-12-16 | 2020-04-10 | 天津凯发电气股份有限公司 | Method for predicting data storage state of NVRAM (non-volatile random Access memory) of relay protection device |
| CN112072797A (en) * | 2020-09-17 | 2020-12-11 | 江苏工程职业技术学院 | Method for providing auxiliary service for micro-grid by grid-connected inverter |
| CN112486223A (en) * | 2020-12-10 | 2021-03-12 | 浙江天正电气股份有限公司 | Method and device for controlling temperature of capacitor |
| CN113572253A (en) * | 2020-04-28 | 2021-10-29 | 北京金风科创风电设备有限公司 | Backup power supply system, wind generating set and variable pitch control method |
| CN113572252A (en) * | 2020-04-28 | 2021-10-29 | 北京金风科创风电设备有限公司 | Backup power supply system, wind generating set and variable pitch control method |
| CN113783272A (en) * | 2021-11-12 | 2021-12-10 | 深圳市今朝时代股份有限公司 | Safety control method based on super capacitor monitoring management system |
| CN113821100A (en) * | 2021-11-22 | 2021-12-21 | 长沙理工大学 | Power-down protection device and method for electronic equipment and electronic equipment |
| CN115308645A (en) * | 2022-07-14 | 2022-11-08 | 国电宁波风电开发有限公司 | Parameter configuration standardization method for variable pitch control system |
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