CN113890084B - Abnormal control method, device and control system of tandem double wind wheel power generation system - Google Patents
Abnormal control method, device and control system of tandem double wind wheel power generation system Download PDFInfo
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- CN113890084B CN113890084B CN202111040253.8A CN202111040253A CN113890084B CN 113890084 B CN113890084 B CN 113890084B CN 202111040253 A CN202111040253 A CN 202111040253A CN 113890084 B CN113890084 B CN 113890084B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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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 disclosure provides an abnormal control method, device and system for a tandem double wind wheel power generation system, and relates to the technical field of wind power generation. Wherein, tandem type double wind wheel power generation system includes: a three-port current transformer; the three-port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid; the method comprises the following steps: acquiring the current incoming wind speed and working parameters of a tandem double wind wheel power generation system; and controlling the abnormal working state of the serial double wind wheel power generation system under the condition that the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value or any working parameter of the serial double wind wheel power generation system is abnormal. Therefore, the influence of abnormality on the power generation system is reduced, and the safety and reliability of the operation of the power generation system are improved.
Description
Technical Field
The disclosure relates to the technical field of wind power generation, in particular to an abnormal control method, device and control system of a tandem double wind wheel power generation system.
Background
In recent years, the development of clean renewable energy sources, such as wind energy, light energy and other renewable energy sources, has become a global consensus due to the great consumption of traditional fossil energy sources causing regional haze, global warming and other serious environmental problems. Wind energy is becoming an increasingly interesting new energy source due to its advantages of wide sources, large reserves, no pollution, etc. The special carrier of the electric energy as the energy has the characteristics of cleanness, high efficiency, environmental friendliness and the like, so the significance of greatly developing new energy power generation is great.
With the progress of technology, wind power generation is more and more extensive, and application scope is also more and more extensive. Generally, due to the changeable environment, the fan may encounter various weather conditions, such as over-strong wind, weak wind, etc., during the use process, so that the wind power generation system may be affected, and the performance and the utilization rate of the wind power generation system may be reduced. Therefore, how to control the wind power generation system to improve the performance thereof becomes a problem to be solved at present.
Disclosure of Invention
The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art.
An embodiment of a first aspect of the present disclosure provides an anomaly control method for a tandem double wind wheel power generation system, including: a three-port current transformer; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid;
the method comprises the following steps:
acquiring the current incoming wind speed and working parameters of the serial double wind wheel power generation system;
and controlling the abnormal working state of the serial double wind wheel power generation system under the condition that the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value or any working parameter of the serial double wind wheel power generation system is abnormal.
Optionally, the controlling the abnormal working state of the tandem double wind wheel power generation system includes:
and when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value, adjusting the working frequency and/or the conduction time of the power switching devices in the machine side converter 1 and the machine side converter 2 so as to increase the output torque of the generator.
Optionally, the controlling the abnormal working state of the tandem double wind wheel power generation system includes:
and under the condition that the input torque of the generator in the tandem double wind wheel power generation system is larger than the rated torque, adjusting the pitch angle to reduce the input torque of the generator.
Optionally, the controlling the abnormal working state of the tandem double wind wheel power generation system includes:
and when the voltage on the grid side is smaller than a voltage threshold value, adjusting the working frequency and/or the conduction time of the power switching device in the grid side converter 3 so as to reduce the output voltage of the grid side converter 3.
Optionally, the tandem double wind wheel power generation system further includes a step-down circuit connected to the grid-side converter 3, and the method further includes:
and starting the step-down circuit and controlling the output voltage of the step-down circuit to be matched with the power grid side voltage.
Optionally, the controlling the abnormal working state of the tandem double wind wheel power generation system includes:
and under the condition that the voltage at the side of the power grid is smaller than a voltage threshold value and the duration time is longer than a time threshold value, disconnecting the grid-side converter 3 from the power grid, and sending power grid fault early warning indication.
Optionally, the tandem double wind wheel power generation system further includes ac energy dissipation devices connected in parallel to two sides of the machine side converter and the generator, and the controlling the abnormal working state of the tandem double wind wheel power generation system includes:
and starting the alternating current energy consumption device under the condition that the pitch operation executed by the pitch mechanism is not matched with the control command and the difference between the current incoming wind speed and the historical incoming wind speed is larger than a second threshold value.
An embodiment of a second aspect of the present disclosure provides an anomaly control device for a tandem double wind turbine power generation system, which is characterized in that the tandem double wind turbine power generation system includes: a three-port current transformer; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid;
the control device includes:
the acquisition module is used for acquiring the current incoming wind speed and the working parameters of the serial double wind wheel power generation system;
the control module is used for controlling the abnormal working state of the serial double wind wheel power generation system under the condition that the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value or any working parameter of the serial double wind wheel power generation system is abnormal.
An embodiment of a third aspect of the present disclosure provides an anomaly control system for a tandem double wind turbine power generation system, which is characterized in that the tandem double wind turbine power generation system includes: a three-port current transformer; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid;
the control system includes: the signal acquisition unit and the controller are connected with each other;
the signal acquisition unit is used for acquiring working parameters of the generator, the wind wheel and the three-port converter in the serial double wind wheel power generation system;
the controller is used for controlling the serial double wind wheel power generation system according to the working parameters acquired by the signal acquisition unit so as to realize the abnormal control method of the serial double wind wheel power generation system.
An embodiment of a fourth aspect of the present disclosure proposes an electronic device, including: the system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the abnormal control method of the serial double wind wheel power generation system as provided by the embodiment of the first aspect of the disclosure when executing the program.
An embodiment of a fifth aspect of the present disclosure proposes a non-transitory computer-readable storage medium storing a computer program that, when executed by a processor, implements an anomaly control method for a tandem double wind turbine power generation system as proposed in the embodiment of the first aspect of the present disclosure.
An embodiment of a sixth aspect of the present disclosure proposes a computer program product, which when executed by an instruction processor in the computer program product, performs the anomaly control method of the tandem double wind turbine power generation system proposed by the embodiment of the first aspect of the present disclosure.
According to the abnormal control method of the tandem double wind wheel power generation system, the current incoming wind speed and the working parameters of the tandem double wind wheel power generation system can be obtained first, and then the abnormal working state control is carried out on the tandem double wind wheel power generation system when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than the first threshold value or any working parameter of the tandem double wind wheel power generation system is abnormal. Therefore, by controlling the abnormal working state of the tandem double wind wheel power generation system, the influence on the power generation system caused by the abnormality can be reduced, and the running safety and reliability of the tandem double wind wheel power generation system are improved.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a flow chart of an anomaly control method of a tandem double wind turbine power generation system according to another embodiment of the present disclosure;
FIG. 2 is a flow chart of an anomaly control method for a tandem twin wind turbine power generation system according to another embodiment of the present disclosure;
FIG. 2A is a schematic diagram of a tandem double wind turbine power generation system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an abnormality control device of a tandem double wind turbine power generation system according to another embodiment of the present disclosure;
fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.
An abnormality control method of a tandem double wind turbine power generation system, a floating wind turbine group system according to an embodiment of the present disclosure will be described below with reference to the accompanying drawings.
The embodiment of the disclosure is illustrated by the configuration of the abnormality control method of the tandem double wind wheel power generation system in the abnormality control device of the tandem double wind wheel power generation system, and the abnormality control device of the tandem double wind wheel power generation system can be applied to any electronic device, so that the electronic device can execute the abnormality control function of the tandem double wind wheel power generation system.
It should be noted that, the control method of the double wind wheel power generation system provided by the present disclosure may be applicable to any kind of double wind wheel power generation system.
For example, the method can be applied to a double wind wheel power generation system comprising a three-port converter, wherein the three-port converter can comprise: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with the power grid. Alternatively, the present disclosure may be applied to a double wind turbine power generation system including other converters, and the like, which is not limited in this disclosure.
The machine side converter 1 can control the rotation speed and the power of the front wind turbine generator, the machine side converter 2 can control the rotation speed and the power of the rear wind turbine generator, the grid side converter 3 can control grid-connected power, electric energy quality, direct current bus voltage control and the like, and the method is not limited in the disclosure.
For convenience of explanation, the present disclosure will be described with reference to the above-described double wind turbine power generation system including a three-port converter.
Fig. 1 is a flow chart of a control method of a double wind wheel power generation system according to an embodiment of the present disclosure. As shown in fig. 1, the control method of the double wind wheel power generation system may include the following steps:
step 101, obtaining the current incoming wind speed and the working parameters of the serial double wind wheel power generation system.
The current incoming wind speed can be determined through data collected by the anemoclinograph, or can be determined through real-time measurement data of a meteorological station; or may determine the current incoming wind speed, etc. in other ways, which are not limiting in this disclosure.
In addition, the working parameters of the tandem double wind wheel power generation system can be various, for example, the rotation speed of the fan, the output power of the fan, the torque of the generator, the output voltage of the fan and the like, and the present disclosure is not limited thereto.
It will be appreciated that in embodiments of the present disclosure, the operating parameters of the tandem twin wind turbine power generation system may be determined in any desirable manner, and the present disclosure is not limited in this regard.
Step 102, controlling the abnormal working state of the serial double wind wheel power generation system under the condition that the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value or any working parameter of the serial double wind wheel power generation system is abnormal.
The first threshold may be a value set in advance, which is not limited in this disclosure.
In addition, if any working parameter of the tandem double wind wheel power generation system exceeds the rated value corresponding to the any working parameter, the any working parameter can be considered to be abnormal, so that the abnormal working state of the tandem double wind wheel power generation system can be controlled according to the any working parameter.
It will be appreciated that the historical incoming wind speed during operation of the wind turbine may be recorded so that the current incoming wind speed may be compared to the historical incoming wind speed. If the difference value of any one of the historical incoming wind speeds between the current incoming wind speed and the historical incoming wind speed is larger than the first threshold value, the current incoming wind speed can be determined to be overlarge.
If the fan operates at an excessive incoming wind speed, the generated rotating speed may be too high, and if the rotating speed is too high, the fan may be damaged, and the output power may be too high, so that the performance of the tandem double wind wheel power generation system is affected.
Optionally, in the embodiment of the present disclosure, when the difference between the current incoming wind speed and the historical incoming wind speed is greater than the first threshold, the working frequencies and/or the on-time of the power switching devices in the machine side converter 1 and the machine side converter 2 may be adjusted to increase the output torque of the generator, so as to limit the rotation speed of the fan.
It will be appreciated that in case the difference between the current incoming wind speed and the historical incoming wind speed is greater than the first threshold, the operating frequency of the power switching devices in the machine side converter 1 and the machine side converter 2 may be adjusted to increase the output torque of the generator, thereby limiting the fan speed.
Alternatively, the on-time of the power switching devices in the side converter 1 and the side converter 2 may be adjusted to increase the output torque of the generator, thereby limiting the fan rotation speed.
Or, the working frequency and the on-time of the power switching devices in the machine side converter 1 and the machine side converter 2 can be adjusted, so that the output torque of the generator is increased, and the rotating speed of the fan is further limited.
The above examples are merely illustrative, and are not intended to limit the manner in which the output torque of the generator is controlled in the embodiments of the present disclosure. Optionally, under the condition that the input torque of the generator in the tandem double wind wheel power generation system is larger than the rated torque, the pitch angle can be adjusted to reduce the input torque of the generator, so that the control of the abnormal working state of the tandem double wind wheel power generation system is realized.
If the input torque of the generator is greater than the rated torque, overload may be caused, and thus damage may be caused to the tandem double wind wheel power generation system.
It will be appreciated that the input torque of the generator is related to the mechanical torque of the blower, the greater the input torque of the generator, and the lesser the input torque of the blower, the lesser the input torque of the generator.
Therefore, in the embodiment of the disclosure, if the input torque of the generator is too large, the wind energy acquired by the generator can be reduced by changing the pitch angle of the fan, and the rotating speed and the mechanical torque of the fan are reduced, so that the input torque of the generator is reduced, and the electromagnetic torque input by the machine side converter is reduced, so that the power balance can be ensured, and the stability and the reliability of the serial double wind wheel power generation system are improved.
According to the embodiment of the disclosure, the current incoming wind speed and the working parameters of the tandem double wind wheel power generation system can be acquired first, and then the abnormal working state control is carried out on the tandem double wind wheel power generation system when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than the first threshold value or any working parameter of the tandem double wind wheel power generation system is abnormal. Therefore, by controlling the abnormal working state of the tandem double wind wheel power generation system, the influence on the power generation system caused by the abnormality can be reduced, and the running safety and reliability of the tandem double wind wheel power generation system are improved.
Fig. 2 is a flow chart of a control method of a double wind wheel power generation system according to an embodiment of the disclosure. As shown in fig. 2, the control method of the double wind wheel power generation system may include the steps of:
step 201, obtaining the current incoming wind speed and the working parameters of the serial double wind wheel power generation system.
It should be noted that, the specific content and implementation of step 201 may refer to the descriptions of other embodiments of the present disclosure, and will not be repeated herein.
Step 202, adjusting the working frequency and/or the on-time of the power switching device in the grid-side converter 3 to reduce the output voltage of the grid-side converter 3 when the grid-side voltage is less than the voltage threshold.
The voltage threshold may be a value set in advance, which is not limited in the present disclosure.
It can be understood that when the voltage at the power grid side is smaller than the voltage threshold, the power grid side can be considered to have a low-voltage fault, and at the moment, abnormal working state control can be performed on the serial double wind wheel power generation system.
For example, the operating frequency of the power switching device in the grid-side converter 3 may be adjusted to reduce the output voltage of the grid-side converter 3, thereby minimizing the influence on the grid side.
Alternatively, the power switching device on time of the grid-side converter 3 may be adjusted to reduce the output voltage of the grid-side converter 3, thereby minimizing the influence on the grid side.
Alternatively, the operating frequency and the on time of the power switching device in the grid-side converter 3 may be adjusted to reduce the output voltage of the grid-side converter 3, thereby minimizing the influence on the grid side.
The above examples are merely illustrative, and are not intended to limit the manner in which the output voltage of the grid-side converter 3 is reduced in the embodiment of the present disclosure.
In one possible implementation manner, the tandem double wind wheel power generation system may further include a step-down circuit connected to the grid-side converter 3, so that, in a case where the grid-side voltage is less than the voltage threshold value, the step-down circuit may be started, and the output voltage of the step-down circuit is controlled to match the grid-side voltage.
Optionally, when the voltage on the grid side is smaller than the voltage threshold and the duration is longer than the time threshold, the connection between the grid-side converter 3 and the grid may be disconnected, and a grid fault early warning indication may be sent.
The voltage threshold may be a value set in advance, which is not limited in the present disclosure.
It can be understood that in the actual implementation process, if the duration that the voltage on the power grid side is smaller than the voltage threshold exceeds the time threshold set in advance, the power grid can be considered to be faulty, at this time, the connection between the power grid side converter 3 and the power grid can be disconnected, and power grid fault early warning indication is sent, so that related personnel can timely deal with the fault early warning indication, and the safety of the tandem double wind wheel power generation system is ensured.
In one possible implementation manner, the tandem double wind wheel power generation system may further comprise an ac energy consumption device connected in parallel to both sides of the machine side converter and the generator. For example, a schematic structure of a tandem double wind turbine power generation system may be shown in fig. 2A.
Therefore, under the condition that the pitch operation executed by the pitch mechanism is not matched with the control command and the difference between the current incoming wind speed and the historical incoming wind speed is larger than a second threshold value, the alternating current energy consumption device is started.
The second threshold may be a value set in advance, which is not limited in the present disclosure.
It will be appreciated that a pitch failure may be considered to occur if the pitch command executed by the pitch mechanism does not match the control command, or the pitch mechanism does not execute the pitch command.
In addition, if the difference between the current incoming wind speed and the historical incoming wind speed is larger than a second threshold value, the mechanical power input to the corresponding generator can be determined to be larger, the generator is in an overload state, the rectifying current value can be limited through the machine side converter, and the alternating current energy consumption device is started, so that the alternating current energy consumption device can absorb the overload electric energy of the generator, and the serial double wind wheel power generation system can safely and stably operate, and the safety and reliability of the serial double wind wheel power generation system are improved.
The structure, number, etc. of the tandem double wind turbine power generation system may be adjusted as needed, and the schematic diagram shown in fig. 2A is only illustrative, which is not limited in this disclosure.
According to the embodiment of the disclosure, the current incoming wind speed and the working parameters of the tandem double wind wheel power generation system can be obtained first, and the working frequency and/or the on-time of the power switch device in the grid-side converter 3 can be adjusted under the condition that the voltage of the grid side is smaller than the voltage threshold value so as to reduce the output voltage of the grid-side converter 3, so that the safe and stable operation of the tandem double wind wheel power generation system can be ensured.
In order to achieve the above embodiments, the present disclosure further provides an abnormality control device of a tandem double wind turbine power generation system.
Fig. 3 is a schematic structural diagram of an abnormality control device of a tandem double wind turbine power generation system according to an embodiment of the present disclosure.
As shown in fig. 3, the abnormality control device 100 of the tandem double wind turbine power generation system may include: an acquisition module 110, and a control module 120.
Wherein, tandem double wind wheel power generation system includes: a three-port current transformer; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid;
the control device 100 includes:
the obtaining module 110 is configured to obtain a current incoming wind speed and an operating parameter of the tandem double wind wheel power generation system.
The control module 120 is configured to perform abnormal operation state control on the tandem double wind wheel power generation system when the difference between the current incoming wind speed and the historical incoming wind speed is greater than a first threshold value, or when any operation parameter of the tandem double wind wheel power generation system is abnormal.
Optionally, the control module 120 is specifically configured to: and when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value, adjusting the working frequency and/or the conduction time of the power switching devices in the machine side converter 1 and the machine side converter 2 so as to increase the output torque of the generator.
Optionally, the control module 120 is further specifically configured to: and under the condition that the input torque of the generator in the tandem double wind wheel power generation system is larger than the rated torque, adjusting the pitch angle to reduce the input torque of the generator.
Optionally, the control module 120 is further specifically configured to: and when the voltage on the grid side is smaller than a voltage threshold value, adjusting the working frequency and/or the conduction time of the power switching device in the grid side converter 3 so as to reduce the output voltage of the grid side converter 3.
Optionally, the tandem double wind wheel power generation system further includes a step-down circuit connected to the grid-side converter 3, and the control module 120 is further specifically configured to: and starting the step-down circuit and controlling the output voltage of the step-down circuit to be matched with the power grid side voltage.
Optionally, the control module 120 is further specifically configured to: and under the condition that the voltage at the side of the power grid is smaller than a voltage threshold value and the duration time is longer than a time threshold value, disconnecting the grid-side converter 3 from the power grid, and sending power grid fault early warning indication.
Optionally, the tandem double wind wheel power generation system further includes ac energy dissipation devices connected in parallel to two sides of the machine side converter and the generator, and the control module 120 is further specifically configured to: and starting the alternating current energy consumption device under the condition that the pitch operation executed by the pitch mechanism is not matched with the control command and the difference between the current incoming wind speed and the historical incoming wind speed is larger than a second threshold value.
The functions and specific implementation principles of the foregoing modules in the embodiments of the present disclosure may refer to the foregoing method embodiments, and are not repeated herein.
According to the abnormal control device of the tandem double wind wheel power generation system, the current incoming wind speed and the working parameters of the tandem double wind wheel power generation system can be obtained firstly, and then the abnormal working state control is carried out on the tandem double wind wheel power generation system when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than the first threshold value or any working parameter of the tandem double wind wheel power generation system is abnormal. Therefore, by controlling the abnormal working state of the tandem double wind wheel power generation system, the influence on the power generation system caused by the abnormality can be reduced, and the running safety and reliability of the tandem double wind wheel power generation system are improved.
In order to achieve the above embodiments, the present disclosure further provides an anomaly control system of a tandem double wind turbine power generation system.
Wherein, tandem type double wind wheel power generation system includes: a three-port current transformer; wherein, three-port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid;
the control system includes: the signal acquisition unit and the controller are connected with each other;
the signal acquisition unit is used for acquiring working parameters of the generator, the wind wheel and the three-port converter in the serial double wind wheel power generation system;
the controller is configured to control the tandem double wind wheel power generation system according to the working parameters acquired by the signal acquisition unit, so as to implement the abnormal control method of the tandem double wind wheel power generation system in any embodiment.
According to the abnormal control system of the tandem double wind wheel power generation system, the current incoming wind speed and the working parameters of the tandem double wind wheel power generation system can be obtained firstly, and then the abnormal working state control is carried out on the tandem double wind wheel power generation system when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than the first threshold value or any working parameter of the tandem double wind wheel power generation system is abnormal. Therefore, by controlling the abnormal working state of the tandem double wind wheel power generation system, the influence on the power generation system caused by the abnormality can be reduced, and the running safety and reliability of the tandem double wind wheel power generation system are improved.
In order to achieve the above embodiments, the present disclosure further proposes an electronic device including: the system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the abnormal control method of the serial double wind wheel power generation system according to the previous embodiment of the disclosure when executing the program.
In order to implement the foregoing embodiments, the present disclosure further proposes a non-transitory computer-readable storage medium storing a computer program that, when executed by a processor, implements an anomaly control method for a tandem double wind turbine power generation system as proposed in the foregoing embodiments of the present disclosure.
In order to implement the above-mentioned embodiments, the present disclosure also proposes a computer program product that, when executed by an instruction processor in the computer program product, performs the anomaly control method of the tandem double wind turbine power generation system as proposed in the foregoing embodiments of the present disclosure.
Fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure. The electronic device 12 shown in fig. 4 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.
As shown in fig. 4, the electronic device 12 is in the form of a general purpose computing device. Components of the electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.
Electronic device 12 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) 30 and/or cache memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, commonly referred to as a "hard disk drive"). Although not shown in fig. 4, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the various embodiments of the disclosure.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods in the embodiments described in this disclosure.
The electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the electronic device 12, and/or any devices (e.g., network card, modem, etc.) that enable the electronic device 12 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks, such as a local area network (Local Area Network; hereinafter: LAN), a wide area network (Wide Area Network; hereinafter: WAN) and/or a public network, such as the Internet, via the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 12 over the bus 18. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 12, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, for example, implementing the methods mentioned in the foregoing embodiments.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present disclosure in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
Furthermore, each functional unit in the embodiments of the present disclosure may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.
Claims (7)
1. An anomaly control method for a tandem double wind wheel power generation system is characterized in that the tandem double wind wheel power generation system comprises: the three-port converter, the alternating current energy consumption device and the voltage reduction circuit; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, the grid side converter 3 is connected with a power grid, the alternating current energy consumption device is connected between the machine side converter and the generator in parallel, and the voltage reduction circuit is connected with the grid side converter 3;
the method comprises the following steps:
acquiring the current incoming wind speed and working parameters of the serial double wind wheel power generation system;
and under the condition that any working parameter of the serial double wind wheel power generation system is abnormal, controlling the abnormal working state of the serial double wind wheel power generation system, wherein: when the pitch operation executed by the pitch mechanism is not matched with the control command and the difference between the current incoming wind speed and the historical incoming wind speed is larger than a second threshold value, limiting a rectifying current value through the machine side converter and starting the alternating current energy consumption device; when the voltage of the grid side is smaller than a voltage threshold value, the working frequency and/or the conduction time of a power switching device in the grid side converter 3 are/is adjusted so as to reduce the output voltage of the grid side converter 3, the step-down circuit is started, and the output voltage of the step-down circuit is controlled to be matched with the voltage of the grid side; and under the condition that the duration time of the grid-side voltage smaller than the voltage threshold value is longer than a time threshold value, disconnecting the grid-side converter 3 from the power grid, and sending power grid fault early warning indication.
2. The method of claim 1, wherein said controlling abnormal operating conditions of said tandem twin wind turbine power generation system comprises:
and when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value, adjusting the working frequency and/or the conduction time of the power switching devices in the machine side converter 1 and the machine side converter 2 so as to increase the output torque of the generator.
3. The method of claim 1, wherein said controlling abnormal operating conditions of said tandem twin wind turbine power generation system comprises:
and under the condition that the input torque of the generator in the tandem double wind wheel power generation system is larger than the rated torque, adjusting the pitch angle to reduce the input torque of the generator.
4. An anomaly control device for a tandem double wind wheel power generation system, characterized in that the tandem double wind wheel power generation system comprises: the three-port converter, the alternating current energy consumption device and the voltage reduction circuit; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, the grid side converter 3 is connected with a power grid, the alternating current energy consumption device is connected between the machine side converter and the generator in parallel, and the voltage reduction circuit is connected with the grid side converter 3;
the control device includes:
the acquisition module is used for acquiring the current incoming wind speed and the working parameters of the serial double wind wheel power generation system;
the control module is configured to control an abnormal working state of the tandem double wind wheel power generation system when a difference between the current incoming wind speed and the historical incoming wind speed is greater than a first threshold value, or when any working parameter of the tandem double wind wheel power generation system is abnormal, wherein: when the pitch operation executed by the pitch mechanism is not matched with the control command and the difference between the current incoming wind speed and the historical incoming wind speed is larger than a second threshold value, limiting a rectifying current value through the machine side converter and starting the alternating current energy consumption device; when the voltage of the grid side is smaller than a voltage threshold value, the working frequency and/or the conduction time of a power switching device in the grid side converter 3 are/is adjusted so as to reduce the output voltage of the grid side converter 3, the step-down circuit is started, and the output voltage of the step-down circuit is controlled to be matched with the voltage of the grid side; and under the condition that the duration time of the grid-side voltage smaller than the voltage threshold value is longer than a time threshold value, disconnecting the grid-side converter 3 from the power grid, and sending power grid fault early warning indication.
5. The apparatus of claim 4, wherein the control module is configured to:
and when the difference value between the current incoming wind speed and the historical incoming wind speed is larger than a first threshold value, adjusting the working frequency and/or the conduction time of the power switching devices in the machine side converter 1 and the machine side converter 2 so as to increase the output torque of the generator.
6. The apparatus of claim 4, wherein the control module is further specifically configured to:
and under the condition that the input torque of the generator in the tandem double wind wheel power generation system is larger than the rated torque, adjusting the pitch angle to reduce the input torque of the generator.
7. An anomaly control system for a tandem double wind wheel power generation system, the tandem double wind wheel power generation system comprising: a three-port current transformer; wherein, three port current transformer includes: a machine side converter 1, a machine side converter 2 and a network side converter 3; the machine side converter 1 is connected with the front wind wheel generator, the machine side converter 2 is connected with the rear wind wheel generator, and the grid side converter 3 is connected with a power grid;
the control system includes: the signal acquisition unit and the controller are connected with each other;
the signal acquisition unit is used for acquiring working parameters of the generator, the wind wheel and the three-port converter in the serial double wind wheel power generation system;
the controller is configured to control the tandem double wind wheel power generation system according to the working parameters acquired by the signal acquisition unit, so as to implement the abnormal control method of the tandem double wind wheel power generation system according to any one of claims 1-3.
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