CN205160096U - Many converter module each other for generating set conversion system of reserve variable speed constant frequency - Google Patents
Many converter module each other for generating set conversion system of reserve variable speed constant frequency Download PDFInfo
- Publication number
- CN205160096U CN205160096U CN201520971600.2U CN201520971600U CN205160096U CN 205160096 U CN205160096 U CN 205160096U CN 201520971600 U CN201520971600 U CN 201520971600U CN 205160096 U CN205160096 U CN 205160096U
- Authority
- CN
- China
- Prior art keywords
- module
- unsteady flow
- pusher side
- net side
- subsequent use
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses a many converter module each other for generating set conversion system of reserve variable speed constant frequency, including machine side filter module, switch switching module, machine side converter module, reserve converter module, net side converter module, auxiliary circuit module, net side filter module, survey control module, machine side filter module linked switch switches module and generator winding, the switch switches over the module connects machine side filter module, machine side converter module, reserve converter module, auxiliary circuit module, net side filter module, net side converter module. The utility model discloses means simple accurate is applicable to brand -new design, production and the old systematic upgrading transformation of the synchronous generator group of double -fed asynchronous generator group and total power frequency conversion, and the constant frequency generating set that can realize changing speed does not shut down the electricity generation when some equipment trouble, improve the generated energy of unit and the utilization ratio of each equipment to but the space -time in the make full use of system is complementary, reduces the influence to the electric wire netting, improves power grid operation stability.
Description
Technical field
The utility model relates to the converter system of vscf generator group, particularly relate to the vscf generator group converter system that a kind of multiple-variable flow module is for subsequent use each other, the upgrading of the brand-new design and old unit that are applicable to the Synchronous generator of double-fed asynchronous generator group and total power frequency conversion changes.
Background technology
Along with the anxiety of current energy source, the exploitation of the multiple new forms of energy such as wind energy, solar energy, tidal energy and wave energy obtains increasing attention, in the exploitation of these new forms of energy, employ vscf generator group widely.In order to improve by wind energy, the efficient energy conversion of prime mover that tidal energy and wave energy etc. drive, the rotating speed of prime mover can change within the scope of certain, the rotating speed of the generator driven by it changes thereupon, the frequency of its electrical power also changes, just can need be connected to the grid through unsteady flow module, and then the electrical power causing it to export is unstable, harmonic content is high, because these energy have unsteadiness, the feature of randomness, the quality of power supply that it is sent is low, larger on the impact of electrical network after being connected to the grid, sometimes even these energy to be abandoned, cause larger waste.The part generate electricity machine receiving the own characteristic such as scarce capacity and new forms of energy instability to cause due to electrical network suspends, ration the power supply and cause electric field performance driving economy to decline, the main cause of rationing the power supply is a grid-connected difficult problem, new forms of energy are exerted oneself instability, other power supplys are wanted to provide peak regulation service for it, the peak regulation such as pumped storage, fuel gas generation, variable frequency power source need be built, when peak is in short supply, to ration the power supply especially severe, optimization planning power supply architecture and electrical network layout, expand electric energy consumption market, also need by scientific and technical innovation, promote the coordination of electrical energy production and consumption.
Existing variable speed constant frequency generator system mainly comprises the Synchronous generator of double-fed asynchronous generator group and total power frequency conversion, and every platform vscf generator group is all equipped with a pusher side unsteady flow module, a back-to-back unsteady flow module of net side unsteady flow module composition.Be the relation of series connection between generator windings, unsteady flow module, electrical network, when generator or unsteady flow module break down time, whole generating set must maintenance down and then abandon electricity, reduces the economic benefit in power plant.When there being multiple stage double-fed asynchronous generator to run in power plant simultaneously, because the rotating speed of every platform double-fed asynchronous generator can adjust according to its operating condition, have higher than synchronous speed, have lower than synchronous speed, make the ac bus in power plant and have a large amount of Power Exchange between the unsteady flow module of net side, electrical power, through interchange repeatedly, DC conversion, adds loss, reduces the stability of system; Meanwhile, the vscf generator group most of the time is in low capacity generating state, and every platform generating set is equipped with a grid side unsteady flow module, causes the utilance of unsteady flow module to reduce; In addition, between unsteady flow module and electrical network, exchange power continually, inject a large amount of harmonic waves to electrical network, reduce the quality of power supply that power plant exports.
Utility model content
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides the vscf generator group converter system that a kind of multiple-variable flow module is for subsequent use each other, is applicable to the Synchronous generator of double-fed asynchronous generator group and total power frequency conversion.Work as generator, by the switching of switch, faulty component is excised when net side or pusher side unsteady flow module break down, other unsteady flow modules in system are utilized to carry out Power Exchange, and the unsteady flow module of other units is connect by DC bus, or provide unsteady flow capacity for other generators, during achievement unit sub-module fault, generating set does not shut down operation, improve the utilization rate of equipment and installations of unit generation amount and vscf generator group, and the harmonic injection that can reduce electrical network, reduce generating equipment and export electric energy to the impact of electrical network, improve the power plant quality of power supply, improve stability and the economy of operation of power networks.
the utility model is achieved through the following technical solutions:
The vscf generator group converter system that multiple-variable flow module is for subsequent use each other, comprises pusher side filtration module, switching over module, pusher side unsteady flow module, unsteady flow module for subsequent use, net side unsteady flow module, auxiliary circuit module, net side filtration module, Survey control module;
Described pusher side filtration module connecting valve handover module and generator windings, for reducing the over-voltage protection of pusher side unsteady flow module;
Described switching over model calling pusher side filtration module, pusher side unsteady flow module, auxiliary circuit module, unsteady flow module for subsequent use, net side filtration module, net side unsteady flow module, for adjusting the syndeton between each module of unsteady flow module, and can be connected to carry out Power Exchange with the DC bus of other unit unsteady flow modules;
Described pusher side unsteady flow model calling switching over module, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, according to the rotating speed of generator, realize the Power Exchange of DC bus and generator windings, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described net side unsteady flow model calling switching over module, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, the power bi-directional realized between ac bus and DC bus exchanges, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described unsteady flow model calling switching over module for subsequent use, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, the power bi-directional realized between ac bus and DC bus exchanges, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described auxiliary circuit module is used for the DC bus-bar voltage between stable net side filtration module and pusher side filtration module, suppresses the voltage fluctuation caused by unsteady flow module, completes low voltage ride-through function etc.;
Described net side filtration module connecting valve handover module and three phase network, for reducing the harmonic effects of unsteady flow module to electrical network;
Described Survey control module is for monitoring state also each operation controlling each module of each module.
This programme be applicable to the Synchronous generator of double-fed asynchronous generator group and total power unsteady flow brand-new design, produce and the upgrading of existed system; it utilizes the conversion of switching over and unsteady flow inside modules control model; net side unsteady flow module, pusher side unsteady flow module and unsteady flow module for subsequent use is made all to can be used as pusher side unsteady flow module mutually for subsequent use or net side unsteady flow module; or provide unsteady flow capacity for other generating sets; during achievement unit sub-module fault, generating set does not shut down operation, the utilization rate of equipment and installations of raising unit generation amount and vscf generator group.
Further, described vscf generator group is double-fed asynchronous generator group, described unsteady flow module for subsequent use is rectification module for subsequent use, when pusher side unsteady flow module breaks down, then by switching over module, pusher side unsteady flow module is excised, and net side unsteady flow module is switched to pusher side pattern, rectification module for subsequent use connects electrical network through net side filtration module, the net side unsteady flow module being operated in pusher side pattern is connected with rectification module for subsequent use by DC bus, provides electrical power through pusher side filtration module to double-fed asynchronous generator rotor; When net side unsteady flow module failure, then rectification module for subsequent use is connected with pusher side unsteady flow module by DC bus, through pusher side filtration module for double-fed asynchronous generator rotor provides electrical power, this programme improves the economy of system, simplify system, unsteady flow module for subsequent use adopts rectification module, and need not be interconnected by DC bus and other units.
Further, described vscf generator group is the Synchronous generator of total power unsteady flow, described unsteady flow module for subsequent use is rectification module for subsequent use, when pusher side unsteady flow module failure, then by switching over module, pusher side unsteady flow module is excised, rectification module for subsequent use connects generator windings by switching over module through pusher side filtration module, and is connected with net side unsteady flow module through DC bus; When net side unsteady flow module failure, then will net side unsteady flow module excision by switching over module, and by switching over module, pusher side unsteady flow module is switched to net side form formula, make it to be operated in net side form formula, rectification module for subsequent use is connected generator windings by switching over module with pusher side filtration module, and through DC bus be operated in the pusher side unsteady flow module of netting side unsteady flow pattern and be connected, this programme improves the economy of system, simplify system, unsteady flow module for subsequent use adopts rectification module, and need not be interconnected by DC bus and other units.
the utility model, relative to prior art, has following advantage and effect:
The utility model controls, and (or operation) is simple, is easy to realize.
The utility model is according to the running status of vscf generator, utilize the conversion of switching over and unsteady flow inside modules control model, the pusher side unsteady flow module that net side unsteady flow module, pusher side unsteady flow module and unsteady flow module for subsequent use all be can be used as mutually back up or net side unsteady flow module.
Also can carry out suitable simplification, unsteady flow module for subsequent use adopts rectification module, and need not be interconnected by DC bus and other units.For double-fed asynchronous generator group, when pusher side unsteady flow module failure, then by switch, pusher side unsteady flow module is excised, and net side unsteady flow module is switched to pusher side pattern, rectification module for subsequent use connects electrical network through net side filtration module, the net side unsteady flow module being operated in pusher side pattern is connected with rectification module for subsequent use by DC bus, provides electrical power through pusher side unsteady flow module to double-fed asynchronous generator rotor windings; When net side unsteady flow module failure, then rectification module for subsequent use is connected with pusher side unsteady flow module by DC bus, through pusher side unsteady flow module for double-fed asynchronous generator rotor windings provides electrical power.For the Synchronous generator of total power unsteady flow, when pusher side unsteady flow module failure, then pusher side unsteady flow module excised by switch, rectification module for subsequent use connects generator windings by switching over module through pusher side filtration module, and is connected with net side unsteady flow module through DC bus; When net side unsteady flow module failure, then will net side unsteady flow module excision by switch, and by switch, pusher side unsteady flow module is switched to net side, make it to be operated in net side form formula, rectification module for subsequent use by switching over through pusher side unsteady flow model calling generator windings, and through DC bus be operated in the pusher side unsteady flow module of netting side unsteady flow pattern and be connected.
As mentioned above, native system technological means is simple and easy to do, and the space-time that can make full use of vscf generator in system is complementary, reduces the impact on electrical network, improves the stability of operation of power networks.
Accompanying drawing explanation
Fig. 1 is the block diagram schematic diagram of the utility model general-purpose system.
Fig. 2 is the block diagram schematic diagram that the utility model is applicable to double-fed asynchronous electricity generation system.
Fig. 3 is the block diagram schematic diagram that the utility model is applicable to synchronous generator system.
Embodiment
Be described in further detail utility model object of the present utility model below in conjunction with the drawings and specific embodiments, embodiment can not repeat one by one at this, but therefore execution mode of the present utility model is not defined in following examples.
As shown in Figure 1.The vscf generator group converter system that multiple-variable flow module is for subsequent use each other, comprises pusher side filtration module, switching over module, pusher side unsteady flow module, unsteady flow module for subsequent use, net side unsteady flow module, auxiliary circuit module, net side filtration module, Survey control module;
Described pusher side filtration module connecting valve handover module and generator windings, for reducing the over-voltage protection of pusher side unsteady flow module;
Described switching over model calling pusher side filtration module, pusher side unsteady flow module, auxiliary circuit module, unsteady flow module for subsequent use, net side filtration module, net side unsteady flow module, for adjusting the syndeton between each module of unsteady flow module, and can be connected to carry out Power Exchange with the DC bus of other unit unsteady flow modules;
Described pusher side unsteady flow model calling switching over module, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, according to the rotating speed of generator, realize the Power Exchange of DC bus and generator windings, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described net side unsteady flow model calling switching over module, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, the power bi-directional realized between ac bus and DC bus exchanges, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described unsteady flow model calling switching over module for subsequent use, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, the power bi-directional realized between ac bus and DC bus exchanges, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described auxiliary circuit module is used for the DC bus-bar voltage between stable net side filtration module and pusher side filtration module, suppresses the voltage fluctuation caused by unsteady flow module, completes low voltage ride-through function etc.;
Described net side filtration module connecting valve handover module and three phase network, for reducing the harmonic effects of unsteady flow module to electrical network;
Described Survey control module is for monitoring state also each operation controlling each module of each module.
This programme be applicable to the Synchronous generator of double-fed asynchronous generator group and total power unsteady flow brand-new design, produce and the upgrading of existed system; it utilizes the conversion of switching over and unsteady flow inside modules control model; net side unsteady flow module, pusher side unsteady flow module and unsteady flow module for subsequent use is made all to can be used as pusher side unsteady flow module mutually for subsequent use or net side unsteady flow module; or provide unsteady flow capacity for other generating sets; during achievement unit sub-module fault, generating set does not shut down operation, the utilization rate of equipment and installations of raising unit generation amount and vscf generator group.
The first switching mode of switching over module is: when normally working, SM throws into SMb, and SG throws into SGa, and Dm, Dg are closed, and SB, Db open; When separate unit vscf generator group independent operating, Dc opens, and when multiple stage vscf generator group cooperation, Dc closes; When netting side unsteady flow module failure, SG, Dg open and net side unsteady flow module are excised, and SB throws into SBa and substitutes net side unsteady flow module; When pusher side unsteady flow module failure, SM, Dm open and pusher side unsteady flow module are excised, and SB throws into SBb and substitutes pusher side unsteady flow module.
The second switching mode of switching over module is: when normally working, SM throws into SMb, and SG throws into SGa, and Dm, Dg are closed, and SB, Db open; When separate unit vscf generator group independent operating, Dc opens, and when multiple stage vscf generator group cooperation, Dc closes; When pusher side unsteady flow module failure, SM, Dm open and pusher side unsteady flow module are excised, and SG throws into the closed alternative pusher side unsteady flow module of SGb, Dg, and SB throws into SBa, and Db is closed substitutes net side unsteady flow module; When netting side unsteady flow module failure, SG, Dg open and net side unsteady flow module are excised, and SM throws into closed the substituting of SMa, Dm and nets side unsteady flow module, and SB throws into SBb, and Db is closed substitutes pusher side unsteady flow module.
The third switching mode of switching over module is: Dc closes, multiple stage unit cooperation, then when in pusher side, net side and unsteady flow module for subsequent use, two faults only have one normally to work, can be thrown into pusher side, the power of generator exchanges by DC bus and other units.
4th kind of switching mode of switching over module is: Dc closes, multiple stage unit cooperation, then, when generating set fault, each unsteady flow module can be thrown into net side, for other units provide unsteady flow capacity.
Also can carry out suitable simplification, unsteady flow module for subsequent use adopts rectification module, and need not be interconnected by DC bus and other units.As shown in Figure 2, for double-fed asynchronous generator group, when pusher side unsteady flow module failure, then by switch, pusher side unsteady flow module is excised, and net side unsteady flow module is switched to pusher side pattern, rectification module for subsequent use connects electrical network through net side filtration module, and the net side unsteady flow module being operated in pusher side pattern is connected with rectification module for subsequent use by DC bus, provides electrical power through pusher side unsteady flow module to double-fed asynchronous generator rotor; When net side unsteady flow module failure, then rectification module for subsequent use is connected with pusher side unsteady flow module by DC bus, through pusher side unsteady flow module for double-fed asynchronous generator rotor provides electrical power.
The switching mode of switching over module is: when normally working, SM throws into SMb, and SG throws into SGa, and Dm, Dg are closed, and SB, Db open; When separate unit vscf generator group independent operating, Dc opens, and when multiple stage vscf generator group cooperation, Dc closes; When pusher side unsteady flow module failure, SM, Dm open and pusher side unsteady flow module are excised, and SG throws into the closed alternative pusher side unsteady flow module of SGb, Dg, and SB, Db are closed substitutes net side unsteady flow module; When netting side unsteady flow module failure, SG, Dg open and net side unsteady flow module are excised, and SB, Db are closed substitutes net side unsteady flow module.
As shown in Figure 3, for the Synchronous generator of total power unsteady flow, when pusher side unsteady flow module failure, then by switch, pusher side unsteady flow module is excised, rectification module for subsequent use passes through switching over module through pusher side unsteady flow model calling generator windings, and is connected with net side unsteady flow module through DC bus; When net side unsteady flow module failure, then will net side unsteady flow module excision by switch, and by switch, pusher side unsteady flow module is switched to net side, make it to be operated in net side form formula, rectification module for subsequent use by switching over module through pusher side unsteady flow model calling generator windings, and through DC bus be operated in the pusher side unsteady flow module of netting side unsteady flow pattern and be connected.
The switching mode of switching over module is: when normally working, SM throws into SMb, and SG throws into SGa, and Dm, Dg are closed, and SB, Db open; When separate unit vscf generator group independent operating, Dc opens, and when multiple stage vscf generator group cooperation, Dc closes; When pusher side unsteady flow module failure, SM, Dm open and pusher side unsteady flow module are excised, and SB, Db are closed substitutes pusher side unsteady flow module; When netting side unsteady flow module failure, SG, Dg open and net side unsteady flow module are excised, and SB, Db are closed, and SM throws into SMa, and Dm is closed substitutes net side unsteady flow module.
As mentioned above, just the utility model can be realized preferably.
Above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection range that all should be included in the utility model claim.
Claims (3)
1. the vscf generator group converter system that multiple-variable flow module is for subsequent use each other, comprises pusher side filtration module, switching over module, pusher side unsteady flow module, unsteady flow module for subsequent use, net side unsteady flow module, auxiliary circuit module, net side filtration module, Survey control module;
Described pusher side filtration module connecting valve handover module and generator windings, for reducing the over-voltage protection of pusher side unsteady flow module;
Described switching over model calling pusher side filtration module, pusher side unsteady flow module, auxiliary circuit module, unsteady flow module for subsequent use, net side filtration module, net side unsteady flow module, for adjusting the syndeton between each module of converter system, and can be connected to carry out Power Exchange with the DC bus of other unit converter systems;
Described pusher side unsteady flow model calling switching over module, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, according to the rotating speed of generator, realize the Power Exchange of DC bus and generator windings, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described net side unsteady flow model calling switching over module, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, the power bi-directional realized between ac bus and DC bus exchanges, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described unsteady flow model calling switching over module for subsequent use, its inside comprises pusher side Variable flow control pattern and net side Variable flow control pattern, the power bi-directional realized between ac bus and DC bus exchanges, and can switch between pusher side unsteady flow pattern and net side unsteady flow pattern as required after other module failures;
Described auxiliary circuit module is used for the DC bus-bar voltage between stable net side filtration module and pusher side filtration module, suppresses the voltage fluctuation caused by unsteady flow module, completes low voltage ride-through function etc.;
Described net side filtration module connecting valve handover module and three phase network, for reducing the harmonic effects of unsteady flow module to electrical network;
Described Survey control module is for monitoring state also each operation controlling each module of each module.
2. the vscf generator group converter system that multiple-variable flow module according to claim 1 is for subsequent use each other, is characterized in that:
Described vscf generator group is double-fed asynchronous generator group, described unsteady flow module for subsequent use is rectification module for subsequent use, when pusher side unsteady flow module breaks down, then by switching over module, pusher side unsteady flow module is excised, and net side unsteady flow module is switched to pusher side pattern, rectification module for subsequent use connects electrical network through net side filtration module, the net side unsteady flow module being operated in pusher side pattern is connected with rectification module for subsequent use by DC bus, provides electrical power through pusher side filtration module to double-fed asynchronous generator rotor; When net side unsteady flow module failure, then rectification module for subsequent use is connected with pusher side unsteady flow module by DC bus, through pusher side unsteady flow module for double-fed asynchronous generator rotor provides electrical power.
3. the vscf generator group converter system that multiple-variable flow module according to claim 1 is for subsequent use each other, is characterized in that:
Described vscf generator group is the Synchronous generator of total power unsteady flow, described unsteady flow module for subsequent use is rectification module for subsequent use, when pusher side unsteady flow module failure, then by switching over module, pusher side unsteady flow module is excised, rectification module for subsequent use is connected generator windings by switching over module with pusher side filtration module, and is connected with net side unsteady flow module through DC bus; When net side unsteady flow module failure, then will net side unsteady flow module excision by switching over module, and by switching over module, pusher side unsteady flow module is switched to net side form formula, make it to be operated in net side form formula, rectification module for subsequent use connects generator windings by switching over module through pusher side filtration module, and through DC bus be operated in the pusher side unsteady flow module of netting side unsteady flow pattern and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971600.2U CN205160096U (en) | 2015-11-28 | 2015-11-28 | Many converter module each other for generating set conversion system of reserve variable speed constant frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971600.2U CN205160096U (en) | 2015-11-28 | 2015-11-28 | Many converter module each other for generating set conversion system of reserve variable speed constant frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160096U true CN205160096U (en) | 2016-04-13 |
Family
ID=55695748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520971600.2U Active CN205160096U (en) | 2015-11-28 | 2015-11-28 | Many converter module each other for generating set conversion system of reserve variable speed constant frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160096U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707078A (en) * | 2017-11-01 | 2018-02-16 | 广州华南鑫沨能源科技有限公司 | A kind of double-fed asynchronous electricity generation system of changeable stream mode |
| CN107732964A (en) * | 2017-11-01 | 2018-02-23 | 广州华南鑫沨能源科技有限公司 | A kind of restructural converter plant |
| CN110703020A (en) * | 2019-10-12 | 2020-01-17 | 三一重能有限公司 | Wind power complete machine test bed and harmonic suppression method thereof |
-
2015
- 2015-11-28 CN CN201520971600.2U patent/CN205160096U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707078A (en) * | 2017-11-01 | 2018-02-16 | 广州华南鑫沨能源科技有限公司 | A kind of double-fed asynchronous electricity generation system of changeable stream mode |
| CN107732964A (en) * | 2017-11-01 | 2018-02-23 | 广州华南鑫沨能源科技有限公司 | A kind of restructural converter plant |
| CN110703020A (en) * | 2019-10-12 | 2020-01-17 | 三一重能有限公司 | Wind power complete machine test bed and harmonic suppression method thereof |
| CN110703020B (en) * | 2019-10-12 | 2021-11-26 | 三一重能股份有限公司 | Wind power complete machine test bed and harmonic suppression method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105305478B (en) | A kind of pair of power grid is friendly and extends flexible grid-connected power generation system | |
| CN102427245B (en) | Movable model device of system of offshore wind power synchronized through flexible DC (Direct Current) power transmission | |
| CN205160096U (en) | Many converter module each other for generating set conversion system of reserve variable speed constant frequency | |
| CN101550906B (en) | DC electric machine variable pitch system and control method thereof | |
| Liu | Application of ETAP in distributed power supply and micro-grid interconnection | |
| CN102447266A (en) | DVR (Dynamic Voltage Restorers)-based low-voltage ride through support device of wind generating set | |
| Chaudhary et al. | Islanded operation of offshore wind power plant using IBESS | |
| Karystianos et al. | Operation of the electrical system of Crete in interconnection with the mainland grid: A stability study | |
| CN204721000U (en) | A kind of friendly and expand grid-connected power generation system flexibly to electrical network | |
| CN204992616U (en) | Machine side net side each other is reserve variable speed constant frequency generating set converter | |
| CN102780231A (en) | Direct-current current source loop-based wind power station converging and grid-connecting method | |
| CN201332277Y (en) | Transducer redundant system of large scale wind generating set | |
| Ge et al. | A novel topology for HVDC link connecting to offshore wind farms | |
| CN205377311U (en) | Modified device is not shut down to variable speed constant frequency generating set trouble | |
| CN206559058U (en) | A kind of grid-connected Large Copacity energy-accumulating power station of synchronized motor | |
| CN202206146U (en) | Dynamic voltage restorer (DVR)-based wind generating set low-voltage crossover supporting device | |
| CN105186576A (en) | Double-fed asynchronously transformed synchronous generating set system | |
| CN210074787U (en) | High-power converter circuit topological structure for offshore wind power | |
| CN204361682U (en) | The full direct current energy collecting system of a kind of wind energy turbine set | |
| CN204992615U (en) | Asynchronous power generation system of double -fed of collecting and distributingization of converter transformation | |
| CN204992617U (en) | Variable speed constant frequency power generation system who does not shut down during trouble | |
| CN106451558A (en) | Power network system with large-scale wind power integration | |
| CN109217353B (en) | Fault ride-through control method and system for flexible direct current power grid and new energy power station | |
| Liu et al. | Analysis of commutation failure of HVDC transmission system with wind farm | |
| CN102255334A (en) | Intelligent unit matrix grid connecting technology of wind generating set and special equipment thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |