CN110021945A - A kind of wind power plant tower elevator energy storage and emergency set - Google Patents
A kind of wind power plant tower elevator energy storage and emergency set Download PDFInfo
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- CN110021945A CN110021945A CN201910363449.7A CN201910363449A CN110021945A CN 110021945 A CN110021945 A CN 110021945A CN 201910363449 A CN201910363449 A CN 201910363449A CN 110021945 A CN110021945 A CN 110021945A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 91
- 238000013519 translation Methods 0.000 claims abstract description 37
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- 230000000295 complement effect Effects 0.000 claims description 22
- 238000012937 correction Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Elevator Control (AREA)
Abstract
The invention belongs to electronic circuit field, it is related to a kind of wind power plant tower elevator energy storage and emergency set, including energy storage and emergency translation circuit, master controller；Energy storage and emergency translation circuit are equipped with power battery contactor, blower side D.C. contactor, tower elevator contactor；Power battery contactor accesses power battery side, blower side D.C. contactor accesses wind-power electricity generation pusher side, tower elevator contactor accesses tower elevator side, the present invention stores generator side direct current energy to power battery under energy storage mode, power battery storage electric energy is discharged to power grid in the compensation mode, tower elevator is delivered to after power battery direct current energy is converted to AC energy boosting under emergency service mode, the present invention had not only ensured normal use of the tower elevator in fan trouble but also effective steady fluctuation of the wind-driven generator to grid power transmission under current condition, power battery utilization rate is improved to reduce the energy consumption cost of wind power plant.
Description
Technical field
The invention belongs to electronic circuit field, it is related to a kind of wind power plant tower elevator energy storage and emergency set.
Background technique
As earth fossil energy is petered out, the utilization of domestic and international common concern renewable energy, wind-powered electricity generation is as a kind of
Its installation amount scale of renewable energy constantly expands.Xinjiang wind energy resources are abundant, Xinjiang wind power plant foundation wind-resources regional advantages,
Its wind energy turbine set installed capacity is gradually increased, and the ratio in electric power rack constantly increases, it is contemplated that will form 5 million to the year two thousand twenty
Multikilowatt wind power base, total installed capacity scale reach ten million kilowatt.Therefore, to Large Scale Wind Farm Integration science operation, reduce energy consumption at
This is increasingly by the concern of height.
The problem of wind power plant operation and maintenance is primarily present at present is that Wind turbines maintenance workload is huge, and wind power plant
For tower height at 100 meters or more, climbing difficulty is big and can not carry maintenance tool, to solve this contradiction, many wind tower peaces
Equipped with tower elevator, however tower elevator is run by electric energy, once under Wind turbines fault condition, the net side of tower elevator
Electric energy is difficult to ensure, so that tower elevator is unable to run in fan trouble because of short of electricity, therefore many wind tower installations
It is spare in case of tower elevator under Wind turbines fault condition equipped with power battery when tower elevator, however it is spare under normal circumstances
Power battery utilization rate lowly causes wind power plant energy consumption cost to rise, and how both to have ensured tower elevator in wind under current condition
Under machine fault condition can normal use improve power battery utilization rate again to reduce the tower elevator energy storage energy consumption of wind power plant
Cost is difficult to solve all the time.
Summary of the invention
In order to achieve the above object, the present invention provides a kind of wind power plant tower elevator energy storage and emergency set, solves
Not only normal use of the tower elevator in fan trouble had been ensured under current condition but improve power battery utilization rate to
Reduce this problem of the tower elevator energy consumption cost of wind power plant.
The technical scheme adopted by the invention is that a kind of wind power plant tower elevator energy storage and emergency set, including energy storage with
Emergency translation circuit, master controller；Energy storage and emergency translation circuit be equipped with power battery contactor, blower side D.C. contactor,
Tower elevator contactor；Power battery contactor accesses power battery, and blower side D.C. contactor accesses wind-driven generator rectification
Device, tower elevator contactor access tower elevator；Energy storage and emergency translation circuit in be equipped with switch combination K1~K16, energy storage with
Emergency translation circuit is set there are three types of operational mode: energy storage mode, compensation model, contingency mode, and energy storage and emergency translation circuit exist
Generator side direct current energy is stored to power battery, in the compensation mode by power battery electric energy under energy storage mode and is discharged to electricity
Net is delivered to tower elevator after power battery direct current energy is converted to AC energy under emergency service mode.
Preferably, switch combination K1~K16 points are four groups: K1, K2, K3, K4 are one group, and K5, K6, K7, K8 are one group,
K9, K10, K11, K12 are one group, and K13, K14, K15, K16 are one group, and every group of switching group is combined interior phase and distinguishes poor 90 each other
Degree；In energy storage and emergency translation circuit, K5 is complementary with the switch phase of K1, K6 is complementary with the switch phase of K2, K7 and K3 are opened
It is complementary with the switch phase of K4 to close phase complements, K8；Energy storage with K9 is complementary with the switch phase of K13, K10 in emergency translation circuit
, K11 complementary with the switch phase of K14 is complementary with the switch phase of K15, K12 is complementary with the switch phase of K16；Energy storage and emergency
In translation circuit, the switch phase of K5 and K13 is 45 degree poor, the switch phase of K6 and K14 are 45 degree poor, K7 and K15 switch phase
Poor 45 degree, poor 45 degree of switch phase of K8 and K16.
Preferably, energy storage and emergency translation circuit are equipped with filter inductance L1~L11, switching tube B1~B6, electric capacity of voltage regulation C1
To C8 and circuit state acquisition unit VDC1, VDC2, VDC3, filter inductance accumulated energy when its concatenated switching tube of institute is opened
Amount releases energy to play the role of stabling current when switching tube is closed, branch electricity where electric capacity of voltage regulation C1 to C8 reduces
Emboss wave number.
Preferably, in switch combination K1~K16 each switch combination K by MOSFET, capacitor, diode, resistance
It is composed, MOSFET can be by distal end pulse control；In stacked switch K, switching device M is in parallel with capacitor C, resistance R and two
Pole pipe D series connection, then connect with capacitor C；Since parasitic inductance generates due to voltage spikes when switching device M is closed, the combination is so that product
Tired charge can be absorbed by capacitor C, while be formed into a loop by diode D and resistance R, the portion of energy be consumed, to reduce
Switching loss reduces switching device loss.
Preferably, switch combination K1~K16 is under energy storage mode: it is straight that wind power plant control room to master controller assigns blower side
Flow the target voltage values V of contactorA, blower side D.C. contactor actual voltage value is remembered electric by the acquisition of circuit state acquisition unit
Pressure is Va, power battery contactor actual voltage value is V by circuit state acquisition unit acquisition note voltageb, the contact of tower elevator
Device disconnects, and blower side D.C. contactor and power battery contactor are closed；B1~B6 disconnection, K9, K10, K11, K12, K13,
K14, K15, K16 are in an off state, and the duty ratio of K5, K6, K7, K8 pass through formula by master controller:Meter
It calculates, the duty ratio D of K1, K2, K3, K412=1-D11, and pass throughIt is right
Duty ratio carries out Closed-cycle correction.
Preferably, switch combination K1~K16 is in the compensation mode: wind power plant control room assigns power battery to master controller
The target voltage values V of contactorB, power battery contactor actual voltage value is acquired by circuit state acquisition unit remembers that voltage is
Vb, blower side D.C. contactor actual voltage value is V by circuit state acquisition unit acquisition note voltagea, tower elevator contactor
It disconnects, blower side D.C. contactor and power battery contactor are closed；B1~B6 disconnection, K9, K10, K11, K12, K13, K14,
K15, K16 are in an off state, and K1, K2, K3, K4, duty ratio pass through formula by master controller:It calculates, K5,
The duty ratio of K6, K7, K8 are as follows: D22=1-D21, and pass throughTo accounting for
Sky is than carrying out Closed-cycle correction.
Preferably, switch combination K1~K16 is in the emergency mode: power battery contactor, tower elevator contactor close
It closes, blower side D.C. contactor disconnects, the target voltage values V of power battery contactorB, virtual voltage at power battery contactor
Acquiring note voltage by circuit state acquisition unit is Vb, it is single to pass through circuit state acquisition for virtual voltage at tower elevator contactor
The collected voltage of member is denoted as Vc, K1, K2, K3, K4, K5, K6, K7, K8 duty ratio D3=0.5, the duty of K9, K10, K11, K12
Than forK13, K14, K15, K16 duty ratio D42=1-D41, and pass throughClosed-cycle correction is carried out to duty ratio.
Preferably, master controller is equipped with pwm signal output interface, circuit state acquisition interface, remote control interface, PWM
Signal output interface is connected to the MOSFET module of switch combination K1~K16 in energy storage and emergency translation circuit, and circuit state is adopted
Collection interface is connected to the circuit state acquisition unit VDC in energy storage and emergency translation circuit, and remote control interface is connected to wind-powered electricity generation
Field control room.
Preferably, master controller is equipped with control panel, and control panel is equipped with liquid crystal display, starting stops key, energy storage
Mode key, compensation model key, contingency mode key.
Preferably, master controller can remotely be controlled by wind power plant control room, and master controller can be by field control, wherein scene
The permission of control is higher than the permission remotely controlled.
The utility model has the advantages that
Using the present invention, a kind of wind power plant tower elevator energy storage and emergency set, under energy storage mode, wind power plant control room
The target voltage values V of blower side D.C. contactor is assigned to master controllerA, Va(wind t) machine) side dt D.C. contactor virtual voltage
Value is V by circuit state acquisition unit acquisition note voltagea, power battery contactor actual voltage value pass through circuit state acquire
Unit acquisition note voltage is Vb, the disconnection of tower elevator contactor, blower side D.C. contactor and power battery contactor are closed；B1
~B6 disconnection, K9, K10, K11, K12, K13, K14, K15, K16 are in an off state, K1, K2, K3, K4, K5, K6, K7, K8's
Duty ratio passes through formula by master controller:It calculates, and passes throughClosed-cycle correction is carried out to duty ratio.
Using the present invention, a kind of wind power plant tower elevator energy storage and emergency set, in the compensation mode, wind power plant control room
The target voltage values V of power battery contactor is assigned to master controllerB, power battery contactor actual voltage value pass through circuit shape
State acquisition unit acquisition note voltage is Vb, blower side D.C. contactor actual voltage value is acquired by circuit state acquisition unit to be remembered
Voltage is Va, the disconnection of tower elevator contactor, blower side D.C. contactor and power battery contactor are closed；B1~B6 disconnection,
K9, K10, K11, K12, K13, K14, K15, K16 are in an off state, the duty ratio of K1, K2, K3, K4, K5, K6, K7, K8 according to
Pass through formula by master controller:It calculates, and passes throughIt is right
Duty ratio carries out Closed-cycle correction.
Using the present invention, a kind of wind power plant tower elevator energy storage and emergency set, in the emergency mode, power battery contact
Device, tower elevator contactor are closed, and blower side D.C. contactor disconnects, the target voltage values V of power battery contactorB, move
Virtual voltage is V by circuit state acquisition unit acquisition note voltage at power battery contactorb, practical at tower elevator contactor
Voltage is denoted as V by the collected voltage of circuit state acquisition unitc, K1, K2, K3, K4, K5, K6, K7, K8 duty ratio D3=
0.5, K9, K10, K11, K12, K13, K14, K15, K16 duty ratioAnd pass throughClosed-cycle correction is carried out to duty ratio.
The present invention, can be by wind power plant control room remotely or live master when wind resource is greater than practical electricity consumption and needs
Control surface controller plate is converted to energy storage mode, i.e., easy extra electric energy is stored in tower elevator through the invention
In power battery；It, can or scene main control long-range by wind power plant control room when wind resource is less than practical electricity consumption
Device control panel is converted to compensation model, i.e., through the invention arrives the electrical energy transportation stored in the power battery of tower elevator
It is insufficient to compensate the wind resource of wind-power electricity generation pusher side in power grid；It can also be when wind wind power generation machine, which breaks down, to generate electricity
By wind power plant control room is long-range or scene with main controller controls panel is converted to emergency service mode, i.e. power battery electric energy turns
Tower elevator side is delivered to after being changed to AC energy in case tower elevator uses.
The present invention can receive wind power plant control room and be formulated in advance accordingly according to this air quantity historical data and day regular data
Open loop policy carry out energy storage mode and compensation model planning and execution；The present invention can also be according to itself energy storage and answering the sudden turn of events
The corresponding closed loop strategy of loop of power circuit state acquisition information progress for changing electronic feedback adjusts operating mode in real time to be accomplished by energy storage
Mode arrives the self-loopa process of energy storage mode to compensation model again；The system that the present invention can also remotely send wind power plant control room
Fixed strategy is combined with the concrete condition at wind-driven generator scene, and closed loop strategy ultimately forms one most favorably to first open loop policy again
The operational mode of situation on site carries out energy storage when that is, first wind-force is greater than power demands at the scene according to wind power plant control room strategy
Mode is carried out when wind-force and power demands fluctuate up and down at the scene by energy storage mode to compensation model following certainly to energy storage mode again
Ring process runs compensation model when wind-force is less than power demands at the scene, and wind-force runs energy storage before reaching some low ebb at the scene
Mode with guarantee to store in power battery a certain amount of electric energy provide against any contingency wind-driven generator failure when tower elevator operation need
It asks.
Using the present invention, not only in blower grid entry point Voltage Drop, blower output point voltage is realized by energy-storage battery
Relative stability, and when abandonment amount is higher, it is charged using abandonment amount to power battery, also on the basis of existing equipment
On improve power battery utilization rate, substantially reduce the energy consumption cost of wind power plant tower elevator and the cost of investment of energy-storage system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is energy storage and emergency converting means circuit topology figure；
Fig. 2 is energy storage and emergency converting means control flow chart；
Fig. 3 is energy storage and emergency converting means link topology；
Fig. 4 is energy storage and emergency converting means master controller schematic diagram.
Specific embodiment
Power battery inside tower is connect by the present apparatus with Wind turbines electronic box by the present invention, that is, meets tower electricity
The energy storage of ladder is spare, and the grid-connected compensation of energy storage electricity can also be realized in wind speed deficiency, improves power quality, improves power battery
Utilization rate reduces tower elevator energy storage energy consumption cost.
Following will be combined with the drawings in the embodiments of the present invention, to the relevant technologies in the present invention carry out it is clear, completely retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
With reference to Fig. 1~4, a kind of wind power plant tower elevator energy storage and emergency set, including energy storage and emergency translation circuit, master
Controller；Energy storage and emergency translation circuit are equipped with power battery contactor, blower side D.C. contactor, tower elevator contactor；
Power battery contactor accesses power battery, and blower side D.C. contactor accesses wind-driven generator rectifier, the contact of tower elevator
Device accesses tower elevator；It is equipped with switch combination K1~K16 in energy storage and emergency translation circuit, energy storage is equipped with emergency translation circuit
Three kinds of operational modes: energy storage mode, compensation model, contingency mode, energy storage and emergency translation circuit will power generations under energy storage mode
Pusher side direct current energy stores to power battery, in the compensation mode discharges power battery electric energy to power grid, in emergency service mould
Tower elevator is delivered to after power battery direct current energy is converted to AC energy under formula.
Further, switch combination K1~K16 points are four groups: K1, K2, K3, K4 are one group, and K5, K6, K7, K8 are one group,
K9, K10, K11, K12 are one group, and K13, K14, K15, K16 are one group, and every group of switching group is combined interior phase and distinguishes poor 90 each other
Degree；In energy storage and emergency translation circuit, K5 is complementary with the switch phase of K1, K6 is complementary with the switch phase of K2, K7 and K3 are opened
It is complementary with the switch phase of K4 to close phase complements, K8；Energy storage with K9 is complementary with the switch phase of K13, K10 in emergency translation circuit
, K11 complementary with the switch phase of K14 is complementary with the switch phase of K15, K12 is complementary with the switch phase of K16；Energy storage and emergency
In translation circuit, the switch phase of K5 and K13 is 45 degree poor, the switch phase of K6 and K14 are 45 degree poor, K7 and K15 switch phase
Poor 45 degree, poor 45 degree of switch phase of K8 and K16.
Further, energy storage and emergency translation circuit are equipped with filter inductance L1~L11, switching tube B1~B6, electric capacity of voltage regulation
C1 to C8 and circuit state acquisition unit VDC1, VDC2, VDC3, filter inductance are saved when its concatenated switching tube of institute is opened
Energy releases energy to play the role of stabling current, branch where electric capacity of voltage regulation C1 to C8 reduces when switching tube is closed
Voltage ripple value.
Further, in switch combination K1~K16 each switch combination K by MOSFET, capacitor C9, diode D1,
Resistance R1's is composed, and MOSFET can be by distal end pulse control；Switch combination passes through the combination with capacitor, diode, inductance
Mode reduces switching device voltage stress, prolongs the service life.
Further, switch combination K1~K16 is under energy storage mode: wind power plant control room assigns blower side to master controller
The target voltage values V of D.C. contactorA, blower side D.C. contactor actual voltage value is acquired by circuit state acquisition unit to be remembered
Voltage is Va, power battery contactor actual voltage value is V by circuit state acquisition unit acquisition note voltageb, tower elevator connects
Tentaculum disconnects, and blower side D.C. contactor and power battery contactor are closed；B1~B6 disconnection, K9, K10, K11, K12, K13,
K14, K15, K16 are in an off state, and the duty ratio of K1, K2, K3, K4, K5, K6, K7, K8 pass through formula by master controller:It calculates, and passes throughClosed loop is carried out to duty ratio to repair
Just；Under energy storage mode, electric energy enters blower side D.C. contactor by rectifier by generator, then is contacted by blower side direct current
Device enters energy storage and emergency translation circuit, is finally stored in power battery after power battery contactor, when circuit state is adopted
For return control signal to master controller, master controller assigns instruction to power electric when collection unit detects battery capacity lower than threshold value
Pond continues to charge, when circuit state acquisition unit detects that battery capacity is higher than threshold value return control signal to master controller,
Master controller assigns stopping charging instruction, and energy storage process terminates, and exits energy storage mode.
Further, switch combination K1~K16 is in the compensation mode: wind power plant control room assigns power electric to master controller
The target voltage values V of pond contactorB, power battery contactor actual voltage value is acquired by circuit state acquisition unit remembers voltage
For Vb, blower side D.C. contactor actual voltage value is V by circuit state acquisition unit acquisition note voltagea, the contact of tower elevator
Device disconnects, and blower side D.C. contactor and power battery contactor are closed；B1~B6 disconnection, K9, K10, K11, K12, K13,
K14, K15, K16 are in an off state, and the duty ratio of K1, K2, K3, K4, K5, K6, K7, K8 pass through formula by master controller:It calculates, and passes throughClosed-cycle correction is carried out to duty ratio；
In the compensation mode, electric energy reversely enters energy storage and emergency translation circuit by power battery contactor by power battery, through wind
It is incorporated to after being finally incorporated to blower side rectifier after pusher side D.C. contactor and merging with the electric energy that blower generates electricity immediately into inverter
Power grid, when circuit state acquisition unit detects that battery capacity is higher than threshold value, return control signal is to master controller, main control
Device assigns instruction and continues to discharge to power battery, and control is returned when circuit state acquisition unit detects battery capacity lower than threshold value
For signal processed to master controller, master controller assigns stopping electric discharge instruction, and compensation process terminates, and exits compensation model.
Further, switch combination K1~K16 is in the emergency mode: power battery contactor, tower elevator contactor are equal
Closure, blower side D.C. contactor disconnect, the target voltage values V of power battery contactorB, practical electricity at power battery contactor
Pressure is V by circuit state acquisition unit acquisition note voltageb, virtual voltage passes through circuit state and acquires at tower elevator contactor
The collected voltage of unit is denoted as Vc, K1, K2, K3, K4, K5, K6, K7, K8 duty ratio D3=0.5, K9, K10, K11, K12,
K13, K14, K15, K16 duty ratioAnd pass through
Closed-cycle correction is carried out to duty ratio；In the emergency mode, electric energy reversely enters storage by power battery contactor by power battery
Can with emergency translation circuit, after tower elevator contactor enter inverter direct current become exchange after boosting be sent into tower elevator for
Tower elevator emergency maintenance use, when circuit state acquisition unit detect battery capacity be higher than threshold value when return control signal extremely
Master controller, master controller assigns instruction and continues to power to tower elevator, when circuit state acquisition unit detects battery capacity
For return control signal to master controller, master controller assigns stopping power supply instruction when lower than threshold value, and emergency process terminates, exits and answer
Anxious mode.
Further, master controller is equipped with pwm signal output interface, circuit state acquisition interface, remote control interface,
Pwm signal output interface is connected to the MOSFET module of switch combination K1~K16 in energy storage and emergency translation circuit, circuit state
Acquisition interface is connected to the circuit state acquisition unit VDC in energy storage and emergency translation circuit, and remote control interface is connected to wind
Electric field controls room.
Further, master controller is equipped with control panel, and control panel is equipped with liquid crystal display, starting stops key, stores up
It can mode key, compensation model key, contingency mode key.
Further, master controller can remotely be controlled by wind power plant control room, and the master controller can be by field control；Wind
Electric field controls room can determine that a certain period uses a certain operational mode according to operational mode selection open loop policy is preset,
Master controller is transported into selected strategy transmission by wind power plant control room bus and scene can be collected from master controller at any time
Loop state acquires information；Wind power plant control room can also use closed loop strategy, change and feed back depending on the site environment
Information formulates optimal operational mode in the current situation in real time, by wind power plant control room bus by selected strategy
Transmission transports to master controller and collects live loop state acquisition information according to master controller at any time and is adjusted；It is in love at the scene
When condition, the operational mode of scene needs can also be selected by way of live directly operation master controller.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of wind power plant tower elevator energy storage and emergency set, which is characterized in that including energy storage and emergency translation circuit, master control
Device processed；The energy storage is equipped with power battery contactor, blower side D.C. contactor, tower elevator with emergency translation circuit and contacts
Device；The power battery contactor accesses power battery, and blower side D.C. contactor accesses wind-driven generator rectifier, institute
State tower elevator contactor access tower elevator；It is equipped with switch combination K1~K16 in the energy storage and emergency translation circuit, it is described
Energy storage and emergency translation circuit are set there are three types of operational mode: energy storage mode, compensation model, contingency mode, the energy storage and emergency
Translation circuit stores generator side direct current energy to power battery under energy storage mode, in the compensation mode by power battery electricity
Can release to power grid, power battery direct current energy be converted under emergency service mode be delivered to tower electricity after AC energy
Ladder.
2. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the switching group
Closing K1~K16 points is four groups: K1, K2, K3, K4 are one group, and K5, K6, K7, K8 are one group, and K9, K10, K11, K12 are one group,
K13, K14, K15, K16 are one group, and every group of switching group is combined interior phase and distinguishes poor 90 degree each other；The energy storage and emergency convert
In circuit, K5 is complementary with the switch phase of K1, K6 is complementary with the switch phase of K2, K7 is complementary with the switch phase of K3, K8 and K4
Switch phase it is complementary；The energy storage and K9 in emergency translation circuit be complementary with the switch phase of K13, switch phase of K10 and K14
Position is complementary, K11 is complementary with the switch phase of K15, K12 is complementary with the switch phase of K16；The energy storage and emergency translation circuit
In, the switch phase of K5 and K13 is 45 degree poor, the switch phase of K6 and K14 are 45 degree poor, the switch phase of K7 and K15 are 45 degree poor, K8
Poor 45 degree with the switch phase of K16.
3. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the energy storage with
It is single that translation circuit of meeting an urgent need is equipped with filter inductance L1~L11, switching tube B1~B6, electric capacity of voltage regulation C1~C8 and circuit state acquisition
First VDC1, VDC2, VDC3.
4. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the switching group
It closes each switch combination K in K1~K16 to be composed of MOSFET, capacitor, diode, resistance, the MOSFET can
By distal end pulse control.
5. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the switching group
K1~K16 is closed under energy storage mode: wind power plant control room assigns the target voltage values of blower side D.C. contactor to master controller
VA, blower side D.C. contactor actual voltage value is V by circuit state acquisition unit acquisition note voltagea, power battery contactor
Actual voltage value is V by circuit state acquisition unit acquisition note voltageb, tower elevator contactor disconnects, and blower side direct current connects
Tentaculum and power battery contactor are closed；B1~B6 disconnection, K9, K10, K11, K12, K13, K14, K15, K16, which are in, disconnects shape
The duty ratio of state, K5, K6, K7, K8 passes through formula by master controller:It calculates, the duty ratio of K1, K2, K3, K4
D12=1-D11, and pass throughClosed-cycle correction is carried out to duty ratio.
6. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the switching group
Close K1~K16 in the compensation mode: wind power plant control room assigns the target voltage values V of power battery contactor to master controllerB,
Power battery contactor actual voltage value is V by circuit state acquisition unit acquisition note voltageb, blower side D.C. contactor reality
Border voltage value is V by circuit state acquisition unit acquisition note voltagea, the disconnection of tower elevator contactor, the contact of blower side direct current
Device and power battery contactor are closed；B1~B6 disconnection, K9, K10, K11, K12, K13, K14, K15, K16 are in an off state,
K1, K2, K3, K4, duty ratio pass through formula by master controller:It calculates, the duty ratio of K5, K6, K7, K8 are as follows:
D22=1-D21, and pass throughClosed-cycle correction is carried out to duty ratio.
7. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the switching group
Close K1~K16 in the emergency mode: power battery contactor, tower elevator contactor are closed, and blower side D.C. contactor is disconnected
It opens, the target voltage values V of power battery contactorB, virtual voltage passes through circuit state acquisition unit at power battery contactor
Acquisition note voltage is Vb, virtual voltage is denoted as V by the collected voltage of circuit state acquisition unit at tower elevator contactorc,
K1, K2, K3, K4, K5, K6, K7, K8 duty ratio D3=0.5, the duty ratio of K9, K10, K11, K12 isK13、K14、
K15, K16 duty ratio D42=1-D41, and pass throughTo duty ratio into
Row Closed-cycle correction.
8. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the main control
Device is equipped with pwm signal output interface, circuit state acquisition interface, remote control interface, and the pwm signal output interface is connected to
The MOSFET module of switch combination K1~K16, the circuit state acquisition interface are connected to storage in energy storage and emergency translation circuit
Wind power plant control room can be connected to the circuit state acquisition unit VDC in emergency translation circuit, the remote control interface.
9. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the main control
Device is equipped with control panel, and the control panel is equipped with liquid crystal display, starting stops key, energy storage mode key, compensation model
Key, contingency mode key.
10. a kind of wind power plant tower elevator energy storage and emergency set according to claim 1, which is characterized in that the master control
Device processed can remotely be controlled by wind power plant control room, and the master controller can be by field control.
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Application publication date: 20190716 |