CN206370696U - Novel high-pressure direct current wind power generating set and networking - Google Patents

Novel high-pressure direct current wind power generating set and networking Download PDF

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Publication number
CN206370696U
CN206370696U CN201621478963.3U CN201621478963U CN206370696U CN 206370696 U CN206370696 U CN 206370696U CN 201621478963 U CN201621478963 U CN 201621478963U CN 206370696 U CN206370696 U CN 206370696U
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direct current
generating set
power generating
wind power
novel high
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张艳富
朱会芳
李蕊
王中恺
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Quantum Opto Electronic Technology (tianjin) Co Ltd
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Quantum Opto Electronic Technology (tianjin) Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

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Abstract

The utility model discloses a kind of novel high-pressure direct current wind power generating set and networking, novel high-pressure direct current wind power generating set networking, including:High-voltage direct current power grid and it is connected to the online energy storage capacitor group of the high voltage direct current, current conversion station and multiple novel high-pressure direct current wind power generating sets, energy storage capacitor group is used to maintain the voltage of the high-voltage direct current power grid and stores the electric energy of the high-voltage direct current power grid, and the current conversion station is used to the electric energy inversion of the high-voltage direct current power grid is delivered into AC network or the high-voltage direct current power grid will be delivered to after the electric energy rectification of the AC network.Novel high-pressure direct current wind power generating set networking of the present utility model, which can be prevented effectively from mutual interference between draught fan group, evade vector fluctuation, structure tends to be simplified, improve system robustness, reduction equipment manufacturing cost, and can effectively solve the problems, such as the Power System Interconnection section SSO large area off-grids occurred frequently for causing blower fan resonance and then occurring, grid adaptability is substantially improved, or even can be matched in excellence or beauty with small-sized thermal power generation unit.

Description

Novel high-pressure direct current wind power generating set and networking
Technical field
The utility model belongs to wind energy development technical field, relates in particular to a kind of novel high-pressure direct current wind-driven generator Group and networking.
Background technology
The Large-scale Wind Turbines of current occuping market main flow are the asynchronous double-fed of three-phase alternating current type or permanent magnet direct-drive wind-force Generating set, due to unit power output compared with for fired power generating unit not in a magnitude, while wind resource is unstable, wind-driven generator Group is constantly in the supplement role of power network;Conventional wind generator group causes it to be not suitable for Power System Interconnection section to the dependence of power network This power-shortage area application;The subject matter that wind power technology faces is that single-machine capacity is limited and grid adaptability is poor, conventional machine The problems such as mutual interference can be led group between power network SSO, vector fluctuation, voltage pulsation, draught fan group after a regional formation scale Large area off-grid is caused, multiple wind fields repeatedly occur such failure at home, have a strong impact on production, and bring very big to power network Threaten.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of novel high-pressure direct current wind-driven generator Group, and it is connected with the novel high-pressure direct current wind power generating set networking of the novel high-pressure direct current wind power generating set.
The purpose of this utility model is achieved by following technical proposals.
A kind of novel high-pressure direct current wind power generating set, including:Wind wheel, generator and AC-DC converter, the friendship directly become Parallel operation includes:Machine-side converter, capacitance group, reactor and the grid-connected breaker of direct current, the DC side of the machine-side converter and institute One end electrical connection of capacitance group is stated, the capacitance group is electrically connected with one end of the reactor, and the other end of the reactor is used In exporting HVDC electric energy to high-voltage direct current power grid, and the grid-connected breaker of the direct current is arranged on the reactor and the height Press on the circuit between direct current network;
The AC of the machine-side converter is electrically connected with the stator of the generator, the wind wheel directly or indirectly through The rotor of gear-box and the generator is mechanically connected.
A kind of novel high-pressure direct current wind power generating set networking, including:High-voltage direct current power grid and it is connected to the high straightening Flow energy storage capacitor group, current conversion station and the multiple above-mentioned novel high-pressure direct current wind power generating sets on power network, the energy storage capacitor Group is used to maintain the voltage of the high-voltage direct current power grid and stores the electric energy of the high-voltage direct current power grid, and the current conversion station is used for institute The electric energy inversion for stating high-voltage direct current power grid is delivered to AC network or will be delivered to after the electric energy rectification of the AC network described High-voltage direct current power grid, wherein, the numerical value of high-voltage direct current power grid virtual voltage using the numerical value of the high-voltage direct current power grid rated voltage as Benchmark is fluctuated, and the virtual voltage of the electricity and the high-voltage direct current power grid of high-voltage direct current power grid storage electric energy It is directly proportional.
In the above-mentioned technical solutions, when the ceiling voltage of the high-voltage direct current power grid is less than or equal to 4.0KV, the hair Motor is multiple permanent magnet generator.
In the above-mentioned technical solutions, the rotor of the novel high-pressure direct current wind power generating set is multiple permanent magnet body, stator For winding, the machine-side converter is the first IEGT modules.
In the above-mentioned technical solutions, the current conversion station includes:2nd IEGT modules, the current conversion station passes through the 2nd IEGT Module is connected with high-voltage direct current power grid and AC network.
In the above-mentioned technical solutions, when the ceiling voltage of the high-voltage direct current power grid is higher than 4.0KV, the generator is Double winding generator.
In the above-mentioned technical solutions, the stator and rotor of the novel high-pressure direct current wind power generating set are winding, are encouraged Magnetomechanical is electrically connected with wound rotor (rotor of winding), for injecting exciting current so that the rotor sets up magnetic to the rotor , the machine-side converter be rectifier bridge, and the rectifier bridge by thyristor groups into.
In the above-mentioned technical solutions, the current conversion station is made up of rectifier and inverter parallel.
Compared to prior art, novel high-pressure direct current wind power generating set networking of the present utility model can be prevented effectively from blower fan Mutual interference between group, evade vector fluctuation, structure and tend to be simplified, improve system robustness, reduction equipment manufacturing cost, and can effectively solve electricity The net interconnecting section SSO large area off-grid problems occurred frequently for causing blower fan resonance and then occurring, grid adaptability is substantially improved, or even can Matched in excellence or beauty with small-sized thermal power generation unit.Direct current transportation simultaneously is also equipped with such as without Kelvin effect, and conveyance loss is small, electromagnetic radiation It is small, it is difficult many advantages such as arcing electric discharge.
Novel high-pressure direct current wind power generating set networking of the present utility model carries out concentrating the design knot exerted oneself through current conversion station Structure, in terms of three-phase alternating current power network angle, can infinitely expand on equivalent to one Capacity Theory of whole straight-flow system below current conversion station Big super wind power generating set, it has broken away from single unit tower structure and weight capacity limitation, cabin space limitation, than normal The advantage that rule separate unit ultra-large type wind power generating set is embodied becomes apparent from, and technical feasibility is higher, with current power technology Maturity is workable.
Brief description of the drawings
Fig. 1 is the structural representation of novel high-pressure direct current wind power generating set of the present utility model;
Fig. 2 is the structural representation of novel high-pressure direct current wind power generating set networking of the present utility model;
Fig. 3 is the real power control reference curve that current conversion station conveys power to AC network;
Fig. 4 is the power school that separate unit novel high-pressure direct current wind power generating set is changed based on high-voltage direct current power grid virtual voltage Positive reference curve;
Fig. 5 is separate unit novel high-pressure direct current wind power generating set rotor speed-power control reference curve;
Fig. 6 is separate unit novel high-pressure direct current wind power generating set rotor speed-award setting reference curve;
Fig. 7 is separate unit novel high-pressure direct current wind power generating set control planning schematic diagram.
Wherein, 1 is wind wheel, and 2 be generator, and 2-1 is stator, and 2-2 is rotor, and 3 be AC-DC converter, and 3-1 becomes for pusher side Parallel operation, 3-2 is capacitance group, and 3-3 is reactor, and 3-4 is the grid-connected breaker of direct current, and 4 be high-voltage direct current power grid, and 5 be novel high-pressure Direct current wind power generating set, 6 be energy storage capacitor group, and 7 be current conversion station.
Embodiment
The technical solution of the utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
In the technical solution of the utility model, " first " and " second " does not have any Special Significance, is only used for pair Part makes a distinction, for example:First IEGT modules and the 2nd IEGT modules, " first " and " second " is used for representing that it is 2 IEGT modules;The definition of high pressure is to be not less than 1Kv;Based on current techniques, IEGT products application environment not yet breaks ceiling voltage 4Kv technical bottleneck, as technology develops, following IEGT or its substitute products may there is no this limitation.
A kind of novel high-pressure direct current wind power generating set, including:Wind wheel 1, generator 2 and AC-DC converter 3, hand over straight conversion Device 3 includes:Machine-side converter 3-1, capacitance group 3-2, reactor 3-3 and the grid-connected breaker 3-4 of direct current, machine-side converter 3-1's DC side is electrically connected with capacitance group 3-2 one end, and the capacitance group 3-2 other end is electrically connected with reactor 3-3, reactor 3-3's The other end is used to export HVDC electric energy to high-voltage direct current power grid 4, and between reactor 3-3 and high-voltage direct current power grid 4 Direct current grid-connected breaker 3-4 is installed on circuit;
Machine-side converter 3-1 AC is electrically connected with the stator 2-1 of generator 2, and wind wheel 1 is directly or indirectly through gear The rotor 2-2 of case and generator 2 is mechanically connected.
A kind of novel high-pressure direct current wind power generating set networking, including:High-voltage direct current power grid 4 and it is connected to the high straightening Energy storage capacitor group 6, current conversion station 7 and the above-mentioned novel high-pressure direct current wind power generating set 5 on power network 4 are flowed, energy storage capacitor group 6 is used for Maintain the voltage of high-voltage direct current power grid 4 and store the electric energy of the high-voltage direct current power grid 4, current conversion station 7 is used for high-voltage direct current power grid 4 Electric energy inversion be delivered to AC network or high-voltage direct current power grid 4 will be delivered to after the electric energy rectification of AC network, wherein, high pressure The numerical value of the virtual voltage of direct current network 4 is fluctuated on the basis of the numerical value of the rated voltage of high-voltage direct current power grid 4, and high The electricity of the pressure storage electric energy of direct current network 4 is directly proportional to the virtual voltage of high-voltage direct current power grid 4.
Wherein, when the ceiling voltage of high-voltage direct current power grid 4 is less than or equal to 4.0KV, generator 2 generates electricity for multiple permanent magnet Machine, i.e. the rotor 2-2 of novel high-pressure direct current wind power generating set 5 is multiple permanent magnet body, stator 2-1 is winding.Machine-side converter 3-1 is the first IEGT modules, and current conversion station 7 includes:2nd IEGT modules, current conversion station 7 passes through the 2nd IEGT modules and HVDC Power network 4 and AC network connection.Thee-phase alternating current permanent-magnetic direct wind-driven generator group improvement of the program based on current popular is formed, It is in place of main difference:Grid side converter is not set at the total power converter of conventional AC-DC-AC structure inside 1 > units, only Retain and hand over straight conversion section and increase reactor, be connected by the grid-connected breaker of direct current with high-voltage direct current power grid, inside unit often The grid side converter function of rule AC-DC-AC structure full power convertor is replaced by outside current conversion station, many HVDC wind-force hairs Inversion, from the point of view of AC network, many HVDC wind below current conversion station are concentrated after group of motors networking at current conversion station Power generator group is equivalent to the super wind power generating set of a capacity super large, and system robustness and grid adaptability are substantially carried Rise.2 > are derived from high-voltage direct current power grid and used after decompression due to AC-less power inside unit, all devices power supply.3>It is grid-connected Breaker closing condition is from voltage is identical, frequency is identical, phase is identical is changed into that only voltage is identical, and cutting-in control is more simple.4> Power model is changed under the higher IEGT modules of stress levels, Same Efficieney that voltage rise can be effective by conventional IGBT module Reduce electric current, reduction conductor propagation loss.
Operation principle is:Wind wheel 1 drives the rotor 2-2 of generator to rotate and provides rotating excitation field, and stator 2-1 winding is produced Energy is simultaneously delivered to capacitance group 3- by induced voltage by the first IEGT modules at machine-side converter 3-1 in the controllable mode of power Energy is delivered at the energy storage capacitor group 6 of high-voltage direct current power grid 4, current conversion station 7 by 2, capacitance group 3-2 by grid-connected breaker 3-4 The 2nd IEGT modules possess two kinds of functions of rectification and inversion, realize the energy of high-voltage energy-storage capacitance group 6 with two-way controllable side Formula is exchanged with AC network.
Novel high-pressure direct current wind power generating set power control mode is that the pitch-controlled system propeller pitch angle of wind speed and wind wheel 1 is total to With the rotating speed of influence generator amature;(tach signal is typical from generator shaft for generator amature 2-2 rotating speeds Rotating speed coder) influence machine-side converter 3-1 locates the first IEGT pulse-width signal, that is, influences generator unit stator 2-1 to pass through Machine-side converter 3-1 exports the size of electric energy to capacitance group 3-2;Limitation can be by limiting the change oar of wind wheel 1 manually manually for power System propeller pitch angle sets the higher limit of capability correction percentage to realize manually;When the voltage of high-voltage direct current power grid 4 is higher than specified electricity During pressure, the difference of actual value and rated voltage is by influenceing capability correction percentage to influence the first IEGT at machine-side converter 3-1 Pulse-width signal, that is, influence generator unit stator 2-1 through machine-side converter 3-1 to capacitance group 3-2 export electric energy size.
Current conversion station active power controller mainly limits two elements affects, nothing by high-voltage direct current power grid virtual voltage and manually Power control system is mainly influenceed by manual control.
Starting logic is:Survey wind-> driftages-> and become oar test-> change oar startup-> dc bus precharge-> startup pusher side changes Close a floodgate grid-connected-> separating brakes off-grid-> of parallel operation-> stop machine-side converter-> and put away the oars the standby survey wind of deceleration->.
When the ceiling voltage of the high-voltage direct current power grid 4 is higher than 4.0KV, generator 2 is double winding generator, i.e., new The stator 2-1 and rotor 2-2 of HVDC wind power generating set 5 are winding, rotor windings and excitation mechatronics, excitation electricity Flow controllable, exciting current intensity effect rotor 2-2 rotating excitation field intensity, and then influence stator 2-1 through machine-side converter 3-1 to Capacitance group 3-2 exports the size of electric energy.Machine-side converter 3-1 be rectifier bridge, and the rectifier bridge by thyristor groups into.Current conversion station 7 Be made up of two part in parallel of rectifier and inverter, rectifier can by the electrical energy transportation of AC network to high-voltage direct current power grid 4, Inverter can be by the electrical energy transportation of high-voltage direct current power grid 4 to AC network.
Operation principle is:Exciter provides controllable Injection Current for rotor 2-2, sets up the magnetic field of intensity controlled, wind wheel 1 Rotor driven 2-2 rotates, and then forms the rotating excitation field of intensity controlled, and stator 2-1 sides produce induced voltage and become by pusher side Energy is delivered to capacitance group 3-2 by thyristor rectifier bridge at parallel operation 3-1, and capacitance group 3-2 passes through reactor 3-3 and grid-connected breaker Energy is delivered to the energy storage capacitor group 6 of high-voltage direct current power grid 4 by 3-4, and current conversion station internal inverters and rectifier cooperate high pressure The energy of energy storage capacitor group is exchanged in two-way controllable mode with three-phase alternating current power network.
Novel high-pressure direct current wind power generating set power control mode is that the pitch-controlled system propeller pitch angle of wind speed and wind wheel 1 is total to With the rotating speed of influence generator amature;(tach signal is typical from generator shaft for generator amature rotating speed Rotating speed coder) influence exciter injection rotor 2-2 current strength, that is, generator unit stator 2-1 is influenceed through machine-side converter 3-1 The size of electric energy is exported to capacitance group 3-2;Limitation can be by limiting the pitch-controlled system propeller pitch angle or hand of wind wheel 1 manually manually for power The dynamic higher limit for setting capability correction percentage is realized;When the voltage of high-voltage direct current power grid 4 is higher than rated voltage, actual value and volume The difference of voltage is determined by influenceing the current strength that capability correction percentage influences exciter to inject rotor 2-2, i.e. influence to generate electricity Machine stator 2-1 exports the size of electric energy through machine-side converter 3-1 to capacitance group 3-2.
Current conversion station active power controller mainly limits two elements affects, nothing by high-voltage direct current power grid virtual voltage and manually Power control system is mainly influenceed by manual control.
It is to survey wind-> driftages-> change oar test-> change oar startup-> dc bus precharge-> startup rotors to encourage to start logic Close a floodgate grid-connected-> separating brakes off-grid-> of magnetomechanical-> stop rotor-exciting machine-> and put away the oars the standby survey wind of deceleration->.
Embodiment 1
The present embodiment separate unit novel high-pressure direct current wind power generating set is designed based on magneto, and the rotor of generator is Permanent magnet;The stator of generator is winding-type;Gear-box is not set inside unit;AC-DC converter is used than conventional IGBT (insulation Grid bipolar transistor) higher the first IEGT (electron injection enhancement gate transistor) module of stress levels is used as core power mould Block.Used inside current conversion station and realize that inversion or rectification are two-way controllable based on the 2nd IEGT modules.
Specified (reference) voltage of such as high-voltage dc transmission power network chooses 3.4Kv DC, and current conversion station downstream sets 10 2MW new Type HVDC wind power generating set, then whole system (including many novel high-pressure direct current wind-force hair for AC network Group of motors, energy storage capacitor group, current conversion station) equivalent to one capacity be 20MW wind power generating set.
Based on above premise, under whole system, all devices actual motion voltage range, which is contemplated that, is set to 3.1Kv extremely All devices set protection lower bound to 3.0Kv high limits to 3.6Kv under 3.5Kv, whole system, during beyond this scope under whole system All devices fully enter guard mode.In normal state:1 > is at all novel high-pressure direct current wind power generating sets whole When off-grid state, current conversion station is powered using AC and inputted through the 2nd IEGT rectifications to high-voltage direct current power grid, maintains high straightening Line voltage is flowed in 3.1Kv;2 > are with wind velocity lift, and each novel high-pressure direct current wind power generating set progresses into startup and generated electricity State, when the capacitance group voltage inside novel high-pressure direct current wind power generating set is slightly above the voltage of high-voltage direct current power grid, is opened Grid-connected action is moved, and automatic off-grid is triggered when power output is negative value (electric current is changed into negative value) and is acted.
Current conversion station sends power control reference curve such as Fig. 3 of active power to AC network, and whole system is normally run Scope is 3.1KV to 3.5KV, and system voltage reaches full hair-like state in 3.4KV, voltage 3.4 between 3.5KV when, current conversion station Whole novel high-pressure direct current wind power generating sets are also simultaneously by voltage correction in reduction generated output raising speed rate, high-voltage direct current power grid Curve limitation (such as Fig. 4) reduction capability correction percentage and then reduction unit output, so that whole system voltage is transported without departing from this Line range, separate unit novel high-pressure direct current wind power generating set power curve such as Fig. 5, rotor speed starts to generate electricity when being higher than 5rpm, Full hair-like state is reached when reaching 10rpm, propeller pitch angle is controlled at 0 degree always during this, and pitch-controlled system is opened when rotor exceeds 10rpm Begin to perform and become oar regulation, rotating speed-propeller pitch angle reference by location curve such as Fig. 6, maximum adjustable-piston angular region is 0 degree to 35 degree, is turned Pitch-controlled system is put away the oars to 90 degree and shut down when rotor speed exceeds 12.5rpm.
Fig. 7 is separate unit novel high-pressure direct current wind power generating set control planning schematic diagram, further illustrates Fig. 4~6 Logical relation, based on above description, whole system is achieved even running.
Exemplary description is done to the utility model above, it should explanation, do not departed from core of the present utility model In the case of the heart, any simple deformation (for example increases multiple current conversion stations, energy storage capacitor group or by energy storage capacitor group in high straightening Stream power network in be changed to distributed installation), modification (high pressure is for example changed into low pressure) or other skilled in the art can not The equivalent substitution (IEGT for example is changed into IGBT) of creative work is spent to each fall within protection domain of the present utility model.

Claims (8)

1. a kind of novel high-pressure direct current wind power generating set, it is characterised in that including:Wind wheel (1), generator (2) and the straight change of friendship Parallel operation (3), the AC-DC converter (3) includes:Machine-side converter (3-1), capacitance group (3-2), reactor (3-3) and direct current are simultaneously Net breaker (3-4), the DC side of the machine-side converter (3-1) is electrically connected with one end of the capacitance group (3-2), the electricity The other end of appearance group (3-2) is electrically connected with the reactor (3-3), and the other end of the reactor (3-3) is used for high straightening Power network (4) output HVDC electric energy is flowed, and the grid-connected breaker of the direct current (3-4) is arranged on the reactor (3-3) and institute State on the circuit between high-voltage direct current power grid (4);
The AC of the machine-side converter (3-1) is electrically connected with the stator (2-1) of the generator (2), and the wind wheel (1) is straight Connect or mechanically connected indirectly by the rotor (2-2) of gear-box and the generator (2).
2. a kind of novel high-pressure direct current wind power generating set networking, it is characterised in that including:High-voltage direct current power grid (4) and company It is connected on the novel high-pressure described in energy storage capacitor group (6), current conversion station (7) and the multiple claims 1 on the high-voltage direct current power grid (4) Direct current wind power generating set (5), the energy storage capacitor group (6) is used for voltage and the storage for maintaining the high-voltage direct current power grid (4) The electric energy of the high-voltage direct current power grid (4), the current conversion station (7) is used to convey the electric energy inversion of the high-voltage direct current power grid (4) To AC network or the high-voltage direct current power grid (4) will be delivered to after the electric energy rectification of the AC network.
3. novel high-pressure direct current wind power generating set networking according to claim 2, it is characterised in that the generator (2) it is multiple permanent magnet generator.
4. novel high-pressure direct current wind power generating set networking according to claim 3, it is characterised in that the novel high-pressure The rotor (2-2) of direct current wind power generating set (5) is multiple permanent magnet body, and stator (2-1) is winding, the machine-side converter (3- 1) it is the first IEGT modules.
5. novel high-pressure direct current wind power generating set networking according to claim 4, it is characterised in that the current conversion station (7) include:2nd IEGT modules, the current conversion station (7) passes through the 2nd IEGT modules and high-voltage direct current power grid (4) and alternating current Net connection.
6. novel high-pressure direct current wind power generating set networking according to claim 2, it is characterised in that the generator (2) it is double winding generator.
7. novel high-pressure direct current wind power generating set networking according to claim 6, it is characterised in that the novel high-pressure The stator (2-1) and rotor (2-2) of direct current wind power generating set (5) are winding, and exciter is electrically connected with rotor windings, is used for Exciting current is injected to the rotor so that the rotor sets up magnetic field, and the machine-side converter (3-1) is rectifier bridge, and this is whole Flow bridge by thyristor groups into.
8. novel high-pressure direct current wind power generating set networking according to claim 7, it is characterised in that the current conversion station (7) it is made up of rectifier and inverter parallel.
CN201621478963.3U 2016-12-30 2016-12-30 Novel high-pressure direct current wind power generating set and networking Active CN206370696U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106532777A (en) * 2016-12-30 2017-03-22 量子光电科技(天津)有限公司 Novel high-voltage DC wind power generator set and group network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106532777A (en) * 2016-12-30 2017-03-22 量子光电科技(天津)有限公司 Novel high-voltage DC wind power generator set and group network

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