CN205265263U - High voltage of being applied to wind generating set passes through controlling means - Google Patents

High voltage of being applied to wind generating set passes through controlling means Download PDF

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Publication number
CN205265263U
CN205265263U CN201520981451.8U CN201520981451U CN205265263U CN 205265263 U CN205265263 U CN 205265263U CN 201520981451 U CN201520981451 U CN 201520981451U CN 205265263 U CN205265263 U CN 205265263U
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high voltage
control
pitch
module
voltage
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CN201520981451.8U
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费许华
赵伟
冯永刚
刘进
付小林
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CHENGDU FUTE TECHNOLOGY CO LTD
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CHENGDU FUTE TECHNOLOGY CO LTD
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

Abstract

The utility model relates to a high voltage of being applied to wind generating set passes through control method and installs by adopting the voltage monitor as withstand voltage device, bear at least instantaneous high voltage more than 2 seconds becoming withstand voltage devices such as utilizing the voltage monitor with the electric wire netting under the condition that the oar system breaks away from, nationality and can ensure that wind generating set is under the condition about not breaking away from with the electric wire netting, the realization high voltage passes through, prevent further enormous impact that causes the electric wire netting and the emergence that threatens the wind generating set incident, simultaneously the utility model discloses control method is passed through with corresponding high voltage to the cooperation, can take off the net operation according to what the electric wire netting situation realized becoming oar system automation ground and electric wire netting.

Description

A kind of high voltage crossing control device that is applied to wind power generating set
Technical field
The present invention relates to wind-power electricity generation control field, relate in particular to one and be applied to wind-power electricity generationHigh voltage crossing control method and the device thereof of unit.
Background technology
The current development along with large-scale offshore wind farm and land wind-powered electricity generation, large-scale wind-powered electricity generationAccess electrical network, because the feature of the fluctuation of wind power system is brought much and is asked to power systemTopic, the phenomenon such as large in: voltage pulsation, unbalanced power, harmonic content, gives power systemStable operation hide some dangers for.
Based on safe and stable operation with control protection requirement, a lot of countries have formulated new grid-connectedTechnical stipulation, in recent years, high voltage crossing is more and more taken seriously, abroad as the U.S.,Canada, Australia, Ireland, Denmark etc. have formulated detailed HVRT standardSpecification and technical requirement. In CNS, clearly specify low voltage crossing (LVRT)Relevant criterion, the relevant criterion of high voltage crossing (HVRT) temporarily not formally put into effect.
When line voltage breaks down while rising sharply, if do not controlled, may cause changeThe damage of stream device and wind-powered electricity generation unit, also may produce power rush to electrical network simultaneously, causes electricityThe transient state of power system is unstable, when serious, may cause even systemic breakdown of part, harm electricityIn net, other equipment even cause more serious loss. Therefore, grid type wind power plantFault ride-through capacity very important, when electric network fault or disturbance cause wind farm grid-connected pointVoltage while raising, wind-powered electricity generation unit can continually be incorporated into the power networks, when being necessary alsoThe support of reactive power need to be provided electrical network, complete line voltage rise sharply to recover normal mistakeThe fault traversing of journey.
Summary of the invention
The object of the invention is the defect existing for above-mentioned background technology, a kind of application is providedIn the high voltage crossing control device of wind power generating set.
A kind of high voltage crossing control device that is applied to wind power generating set of the present invention, itsComprise a controller, this high voltage crossing control device further comprises a high voltage crossing controlLoop processed, described high voltage crossing control loop is by a voltage monitor and three gate-controlled switch mouldsPiece composition; Described voltage monitor is connected to and becomes on oar slip ring, described voltage monitor requirementCan tolerate the voltage that is more than or equal to 600V, and described voltage monitor is used for monitoring input sideThe three-phase alternating voltage signal of main power source and according to three-phase alternating voltage size control described canThe break-make of control switch module; Described gate-controlled switch module is connected to and becomes on oar slip ring, described electricityPress monitor to be positioned at the front end of gate-controlled switch module, this described in three gate-controlled switch module forInput voltage is increased to U1>=520V and U1>=520V duration T1Be more than or equal to setting-up time TTime disconnect realizing input side master by gate-controlled switch module described in described voltage monitor controlThe disconnection of power supply and variable pitch driver.
Further, described setting-up time T is more than or equal to 2S.
Further, described high voltage crossing control loop further comprises that a temperature opens machine controlMolding piece, described temperature opens machine control module for temperature in pitch system of wind driven generator cabinetDegree reaches 0 DEG C of above and humidity below 90% time, starts the change oar control merit of pitch-controlled systemCan; Described temperature open machine control module at pitch-controlled system in-cabinet temperature lower than 0 DEG C or high humidityIn 90% time, this temperature opens machine control module in off state; When temperature in pitch-controlled system cabinetDegree reaches 0 DEG C of above and humidity below 90% time, and this temperature opens machine control module in leadingLogical state.
Further, described high voltage crossing control loop further comprises a bypass and lockingLoop, described bypass and locked loop are one to have the switch of on-off function, and bypass and lockDetermining loop is connected in parallel on described temperature and opens in machine control module.
Further, described bypass and locked loop are used at wind generating set pitch control systemIn-cabinet temperature reaches 0 DEG C of above and humidity below 90% time, and temperature is opened to machine control moduleMask, meanwhile, wind generating set pitch control powers on or when long first apart from control systemBetween shut down and cause variable-pitch control system without controlling when electricity consumption, by wind turbine generator system controllerControl inputs side main power source is supplied with the control electricity consumption after conversion to pitch-variable system, once becomePitch control system powers on successfully, and temperature is opened machine control module by described bypass and locked loopMask.
Further, described voltage monitor is a three-phase voltage monitor, described controlled openingPass module at least should be any one in a contactor or controllable silicon.
In sum, invent a kind of high voltage crossing controlling party that is applied to wind power generating setMethod and device thereof are by adopting voltage monitor as withstand voltage device, at pitch-controlled system and electrical networkIn situation about departing from, utilize the withstand voltage devices such as voltage monitor bear at least 2 seconds above instantaneousHigh voltage, nationality and can guarantee that wind power generating set is not in the situation that departing from electrical network, realizesHigh voltage crossing, prevents the enormous impact further electrical network being caused and jeopardizes wind-driven generatorThe generation of group security incident, the present invention simultaneously coordinates with corresponding high voltage crossing controlling partyMethod, can realize pitch-controlled system automation and the off-grid operation of electrical network according to electrical network situation.
Brief description of the drawings
Fig. 1 is a kind of high voltage crossing control that is applied to wind power generating set of one of the present inventionMethod flow schematic diagram processed.
Fig. 2 A is a kind of high voltage crossing that is applied to wind power generating set of two of the present inventionThe first preferred embodiment one schematic diagram of control device.
Fig. 2 B is a kind of high voltage crossing that is applied to wind power generating set of two of the present inventionAnother schematic diagram of the first preferred embodiment of control device.
Fig. 3 A is a kind of high voltage crossing that is applied to wind power generating set of two of the present inventionOne schematic diagram of the second preferred embodiment of control device.
Fig. 3 B is a kind of high voltage crossing that is applied to wind power generating set of two of the present inventionAnother schematic diagram of the second preferred embodiment of control device.
Fig. 4 A is a kind of high voltage crossing that is applied to wind power generating set of two of the present inventionOne schematic diagram of the 3rd preferred embodiment of control device.
Fig. 4 B is a kind of high voltage crossing that is applied to wind power generating set of two of the present inventionAnother schematic diagram of the 3rd preferred embodiment of control device
Detailed description of the invention
By describing technology contents of the present invention, structural feature in detail, being reached object and effect,Below hereby exemplify embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, Fig. 2 A and Fig. 2 B, one of the present invention's one is applied to wind-force and sends outThe high voltage crossing control method of group of motors, comprising:
Step S1: judge that by becoming oar controller the voltage signal of input side main power source is high voltagePass through signal or low voltage crossing signal, if low voltage crossing signal becomes oar controlDevice activates low voltage crossing control model and enters low voltage crossing control model;
Step S2: if high voltage crossing signal becomes oar controller and activates high voltage crossingPattern also enters high voltage crossing control model, becomes oar controller and further judges high voltage shapeThe time T that state is lasting1Whether be more than or equal to setting-up time T, if high-voltage state duration T1Be less than setting-up time T, further judge that whether change oar back-up source voltage is normal,
If high-voltage state duration T1Be more than or equal to setting-up time T, trigger and enterBecome the anxious control model of stopping of oar, further judge that whether change oar back-up source voltage is normal simultaneously;
Step S3: if it is normal to become oar back-up source voltage, become oar controller control featherControl system and input side main power source depart from, and meanwhile, become oar controller and at least maskAC DC, back-up source charger two class fault-signals, to ensure that becoming oar controller can not be subject toTo above-mentioned AC the impact of the fault-signal such as DC, charger,
If it is undesired to become oar back-up source voltage, become oar controller control variable-pitch control systemMutually connect to realize to variable-pitch control system power supply with input side main power source, same therewithTime, become oar controller at least recover AC DC, back-up source battery charger failure monitor two classes lettersNumber, to ensure that variable-pitch control system can normally work;
Step S4: finish high voltage crossing control model.
In specific embodiment, the time span of setting-up time T is 2 seconds and above anyA value.
In specific embodiment, the voltage signal of described input side main power source is by described three-phase electricityPress monitor monitor and voltage signal is sent into described change oar controller.
In specific embodiment, described input side main power source is the 3*400V being sent into by electrical network endAlternating current.
In specific embodiment, high voltage crossing signal refers to the 3*400V that electrical network end is sent intoVoltage signal when alternating current voltage is more than or equal to 520V; Low voltage crossing signal refers to electricityVoltage signal when the 3*400V alternating current voltage that net end is sent into is less than 320V.
In specific embodiment, described change oar back-up source voltage normally refers to and becomes oar standby electricitySource voltage at least can meet the put away the oars voltage of work of variable-pitch control system, after described change oarThe voltage of stand-by power source is converted and is obtained by the electric energy that becomes oar back-up source.
A kind of high voltage crossing control dress that is applied to wind power generating set of two of the present inventionPut, be applicable to AC type wind generating set pitch control system, it comprises a controller and becomes oarDriver, the high voltage crossing control device of telling further comprises that a voltage monitor, three canControl switch module, described controller, voltage monitor, three are opened by the controlled of controller controlClose module and variable pitch driver composition change oar high voltage crossing control loop;
Described voltage monitor is connected to and becomes on oar slip ring, and described voltage monitor requires abilityBe more than or equal to the voltage of 600V, and described voltage monitor is used for monitoring the main electricity of input sideThe three-phase alternating voltage signal in source also feeds back high voltage crossing signal to controller;
Described gate-controlled switch module is connected to and becomes on oar slip ring, and described voltage monitor is positioned at canThe front end of control switch module, this described in three gate-controlled switch module for being increased at input voltageU1>=520V and U1>=520V duration T1While being more than or equal to setting-up time T by the control of described change oarDescribed in device control processed, gate-controlled switch module disconnects realizing input side main power source and becomes oar drivingThe disconnection of device;
Described variable pitch driver is connected to and is become oar slip ring by three described gate-controlled switch modulesUpper to obtain the electric energy of input side main power source.
Described setting-up time T is more than or equal to 2S.
Described high voltage crossing control loop further comprises that a temperature opens machine control module, instituteState temperature and open machine control module for reaching 0 DEG C at pitch system of wind driven generator in-cabinet temperatureAbove and humidity below 90% time, start the change oar control function of pitch-controlled system; Described temperatureDegree opens machine control module in the time that pitch-controlled system in-cabinet temperature is greater than 90% lower than 0 DEG C or humidity,This temperature opens machine control module in off state; When pitch-controlled system in-cabinet temperature reaches 0 DEG CAbove and humidity below 90% time, this temperature opens machine control module in conducting state.
Described high voltage crossing control loop further comprises a bypass and locked loop, described inBypass and locked loop are one to have the switch of on-off function, and bypass and locked loop parallel connectionOpen in machine control module in described temperature.
Described bypass and locked loop are used at wind generating set pitch control system in-cabinet temperatureReach 0 DEG C of above and humidity below 90% time, temperature opened to machine control module and mask,Meanwhile, wind generating set pitch control powers on first or makes because of long-time shutdown apart from control systemWhile becoming variable-pitch control system without control electricity consumption, by wind turbine generator system controller control inputsSide main power source is supplied with the control electricity consumption after conversion to pitch-variable system, once feather controlSystem powers on successfully, and described bypass and locked loop open machine control module by temperature and mask.
Described controller at least should be wind power generating set master controller or becomes in oar controllerOne.
Refer to Fig. 3 A and Fig. 3 B, in the second preferred embodiment, the present invention is a kind of shouldFor the high voltage crossing control device of wind power generating set, it comprise a change oar controller,This high voltage crossing control device further comprises a high voltage crossing control loop, a three-phaseVoltage monitor, three contactors, a relay, described three-phase voltage monitors and is equivalent to firstVoltage monitor in preferred embodiment, what described contactor was equivalent to the first better enforcement canControl switch module, its function all with the first preferred embodiment in voltage monitor and controlled openingPass module is identical, and described change oar controller, three-phase voltage monitor, three are by becoming oar controllerDescribed contactor, relay and the variable pitch driver composition controlled become the control of oar high voltage crossingLoop, described change oar controller reaches the break-make of control contactor, nationality by described relayAnd realize the break-make of input side main power source and variable pitch driver current supply circuit.
In the second preferred embodiment, described high voltage crossing control device further comprises a temperatureDegree opens machine module and a bypass and locked loop module, and described temperature opens machine module and described sideThe function of road and locked loop module and structural relation all with the first preferred embodiment in correspondingTemperature to open machine module and bypass and locked loop module identical, and described bypass and locking mouldPiece is that one in contactor controlled contact, and this control contact is by controller control.
Please continue and consult Fig. 4 A and Fig. 4 B, in the 3rd preferred embodiment, a kind of application of the present inventionIn the high voltage crossing control device of wind power generating set, it comprises a controller, this height electricityPressure is passed through control device and is further comprised a high voltage crossing control loop, and described high voltage is wornMore control loop is made up of a voltage monitor and three gate-controlled switch modules, described monitoring voltageDevice is for monitoring the three-phase alternating voltage of input side main power source and according to input side main power sourceLeading to of voltage signal size nationality and control inputs side main power source and variable pitch driver current supply circuitDisconnected. In this preferred embodiment, described high voltage crossing control loop further comprises a temperatureOpen machine control module and a bypass and locked loop. Controlled opening described in this preferred embodimentPass module, temperature open in machine control module and bypass and locked loop and the first preferred embodimentEffect and structural relation all identical, difference exists, described voltage monitor is except possessing prisonDepending on the voltage signal of input side main power source and outside external feedback high voltage crossing signal, also haveControl the function of the break-make of described gate-controlled switch module, i.e. this 3rd preferred embodiment, described inVoltage monitor is not to controller feedback high voltage crossing signal and then by controller controlRealize the control to gate-controlled switch module break-make, the break-make of realization and input side main power source, andDescribed voltage monitor is sent into pitch-controlled system voltage by monitoring, and according to the reality of voltageBorder situation is controlled gate-controlled switch module break-make by described monitoring voltage oneself. This preferred embodimentIn, described gate-controlled switch module is a contactor; Described bypass and locking module are contactorIn one control contact, this control contact is by controller control.
Described input side main power source is the 3*400V alternating current of being sent into by electrical network end.
In sum, a kind of high voltage crossing control that is applied to wind power generating set of the present inventionMethod and device thereof are by adopting voltage monitor as withstand voltage device, at pitch-controlled system and electricityIn the situation that net departs from, utilize the withstand voltage devices such as voltage monitor to bear at least 2 seconds above winksTime high voltage, nationality and can guarantee that wind power generating set is not in the situation that departing from electrical network, realExisting high voltage crossing, prevents the enormous impact further electrical network being caused and jeopardizes wind-power electricity generationThe generation of unit safety accident, the present invention simultaneously coordinates with corresponding high voltage crossing controlling partyMethod, can realize pitch-controlled system automation and the off-grid operation of electrical network according to electrical network situation.
Above-described technical scheme is only a kind of high voltage that is applied to wind power generating setThe preferred embodiment of traversing control method and device thereof, is anyly applied to wind in one of the present inventionThe equivalence of doing on the high voltage crossing control method of power generator group and device basic thereof becomesWithin changing or replace the scope of the claim that is included in this patent.

Claims (6)

1. a high voltage crossing control device that is applied to wind power generating set, it comprises oneController, is characterized in that: this high voltage crossing control device further comprises a high voltagePass through control loop, described high voltage crossing control loop is by a voltage monitor and three controlledSwitch module composition;
Described voltage monitor is connected to and becomes on oar slip ring, and described voltage monitor requires abilityBe more than or equal to the voltage of 600V, and described voltage monitor is used for monitoring the main electricity of input sideThe three-phase alternating voltage signal in source is also controlled described controlled opening according to three-phase alternating voltage sizeClose the break-make of module;
Described gate-controlled switch module is connected to and becomes on oar slip ring, and described voltage monitor is positioned at canThe front end of control switch module, this described in three gate-controlled switch module for being increased at input voltageU1>=520V and U1>=520V duration T1While being more than or equal to setting-up time T by described voltage monitorControl described gate-controlled switch module and disconnect realizing input side main power source and variable pitch driverDisconnect.
2. a kind of high voltage crossing control device as claimed in claim 1, is characterized in that:Described setting-up time T is more than or equal to 2S.
3. a kind of high voltage crossing control device as claimed in claim 2, is characterized in that:Described high voltage crossing control loop further comprises that a temperature opens machine control module, described temperatureDegree opens machine control module for reaching more than 0 DEG C at pitch system of wind driven generator in-cabinet temperatureAnd humidity below 90% time, starts the change oar control function of pitch-controlled system; Described temperature opensMachine control module in the time that pitch-controlled system in-cabinet temperature is greater than 90% lower than 0 DEG C or humidity, this temperatureDegree opens machine control module in off state; When pitch-controlled system in-cabinet temperature reaches more than 0 DEG CAnd humidity is below 90% time, and this temperature opens machine control module in conducting state.
4. a kind of high voltage crossing control device as claimed in claim 3, is characterized in that:Described high voltage crossing control loop further comprises a bypass and locked loop, described bypassAnd locked loop is one to have the switch of on-off function, and bypass and locked loop are connected in parallel on instituteStating temperature opens in machine control module.
5. a kind of high voltage crossing control device as claimed in claim 4, is characterized in that:Described bypass and locked loop are for reaching 0 at wind generating set pitch control system in-cabinet temperatureDEG C above and humidity below 90% time, opens machine control module by temperature and masks, meanwhile,Wind generating set pitch control powers on first or causes change because of long-time shutdown apart from control systemPitch control system is without controlling when electricity consumption, by wind turbine generator system controller control inputs side masterPower supply is supplied with the control electricity consumption after conversion to pitch-variable system, once variable-pitch control systemPower on successfully, described bypass and locked loop open machine control module by temperature and mask.
6. a kind of high voltage crossing control device as claimed in claim 5, is characterized in that:Described voltage monitor is a three-phase voltage monitor, and described gate-controlled switch module at least should beAny one in one contactor or controllable silicon.
CN201520981451.8U 2015-12-02 2015-12-02 High voltage of being applied to wind generating set passes through controlling means Active CN205265263U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11486360B2 (en) * 2020-04-10 2022-11-01 General Electric Company System and method for controlling wind turbine converters during high voltage ride through events

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11486360B2 (en) * 2020-04-10 2022-11-01 General Electric Company System and method for controlling wind turbine converters during high voltage ride through events

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