CN114280619A - Wind power plant meteorological parameter measuring device based on sodar sensing and control method - Google Patents
Wind power plant meteorological parameter measuring device based on sodar sensing and control method Download PDFInfo
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- CN114280619A CN114280619A CN202111528306.0A CN202111528306A CN114280619A CN 114280619 A CN114280619 A CN 114280619A CN 202111528306 A CN202111528306 A CN 202111528306A CN 114280619 A CN114280619 A CN 114280619A
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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 invention discloses an acoustic radar sensing-based meteorological parameter measuring device for a wind power plant and a control method, and belongs to the technical field of wind power generation. The measuring device comprises a detection system, a power supply system and a controller, wherein the detection system and the power supply system are respectively connected with the controller; the detection system comprises a sound detection meteorological radar, an atmospheric temperature and humidity sensor and an atmospheric pressure sensor which are respectively connected with the controller; the power supply system comprises a photovoltaic power generation device, a wind power generation device, a converter device and an electric energy storage device; the photovoltaic power generation device and the wind power generation device are respectively connected with the electric energy storage device through the converter device, and the electric energy storage device is connected with the controller and used for supplying power to the controller. The reliability of power generation is improved. Meanwhile, the reliability and the power generation efficiency of the wind power generation module are improved by adopting the converter module with high reliability and the generator.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a meteorological parameter measuring device for a wind power plant based on sodar sensing and a control method.
Background
In the prior art, wind power plants mostly measure environmental parameters such as wind, air pressure and humidity through a wind measuring tower. The wind measuring tower mainly comprises an iron tower frame, environmental parameter measuring equipment such as wind, air pressure, humidity and the like, a lightning rod and other components, and the height of the iron tower frame is about 100 meters generally, so that the wind measuring tower is high in installation height, large in size and occupied area, very difficult to install and maintain, high in cost and prone to safety accidents such as collapse of the iron tower frame.
The sodar meteorological measuring device is a novel meteorological parameter measuring device for a wind power plant at present, measures wind parameters in a range of 10m-150m of the wind power plant and meteorological elements such as air pressure, temperature and humidity in a range of 10m away from the ground under the condition that a higher iron tower is not erected, provides important data for wind power plant wind power prediction, and has the advantages of small size, low cost and simplicity in installation and maintenance.
The sodar meteorological measuring device comprises detection systems such as a sound detection meteorological radar, an atmospheric temperature and humidity sensor and an atmospheric pressure sensor, a power supply system, a controller and the like. Because sodar meteorological measuring device is applied to open-air area in open country often, the commercial power is supplied with inconveniently, and its power supply system adopts from the generating electricity mode mostly, consequently, sodar meteorological measuring device is higher to power supply system's reliability requirement, will cause sodar meteorological measuring device to take place the downtime if power supply system trouble, so provide a sodar meteorological measuring device with high power supply system reliability and become the subject that awaits the solution urgently.
Disclosure of Invention
Aiming at the technical problems, the invention provides a wind power plant meteorological parameter measuring device based on sodar sensing and a control method thereof, and the power supply safety of the wind power plant meteorological parameter measuring device is ensured by designing a brand-new power supply system.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a meteorological parameter measuring device for a wind power plant based on sound radar sensing, which comprises a detection system, a power supply system and a controller, wherein the detection system and the power supply system are respectively connected with the controller; the detection system comprises a sound detection meteorological radar, an atmospheric temperature and humidity sensor and an atmospheric pressure sensor which are respectively connected with the controller; the power supply system comprises a photovoltaic power generation device, a wind power generation device, a first converter, a second converter and an electric energy storage device; the photovoltaic power generation device is connected with the first converter, the wind power generation device is connected with the second converter, the first converter and the second converter are both connected with the electric energy storage device, and the electric energy storage device is connected with the controller and used for supplying power to the controller; the wind power generation device comprises a blade and a generator, a stator of the generator is divided into four stator module units along the circumference, magnetic isolating blocks are arranged on adjacent stator module units, each stator module unit is provided with a set of three-phase winding, the four sets of three-phase windings are arranged into first to fourth windings according to the circumferential direction, and the first to fourth windings are respectively connected with the second converter in parallel.
Furthermore, each stator module unit comprises three stator teeth which are arranged at equal intervals along the circumference, coils are respectively arranged on the three stator teeth to form three-phase windings, and the three-phase windings are concentrated windings.
Further, the first converter is a dc-dc converter, and the second converter is an ac-dc converter.
Further, the magnetic isolation blocks are made of non-magnetic conductive materials.
The invention relates to a control method of a meteorological parameter measuring device for a wind power plant based on sodar sensing, which comprises the following steps:
when the residual electric quantity of the electric energy storage device is lower than 60% of the rated electric quantity, all four sets of windings of the generator are put into operation to generate electricity, and all the photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 60% and lower than 80% of rated electric quantity and the illumination intensity is strong, all the photovoltaic power generation panel units are put into operation to generate power, one set of winding in the first winding and the second winding is put into operation to generate power, one set of winding in the third winding and the fourth winding is put into operation to generate power, and two sets of windings put into operation to generate power are opposite in the circumferential direction;
when the residual electric quantity of the electric energy storage device is higher than 60% and lower than 80% of rated electric quantity and the illumination intensity is weak, all four sets of windings of the generator are put into operation to generate electricity, and all the photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 80% and lower than 90% of rated electric quantity and the illumination intensity is strong, one winding of four windings of the generator is put into operation to generate electricity, and all photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 80% and lower than 90% of rated electric quantity and the illumination intensity is weaker, all the photovoltaic power generation panel units are put into operation to generate power, one set of winding in the first winding and the second winding is put into operation to generate power, one set of winding in the third winding and the fourth winding is put into operation to generate power, and the two sets of windings put into operation to generate power are opposite in the circumferential direction;
when the residual electric quantity of the electric energy storage device is higher than 90% of the rated electric quantity and the illumination intensity is strong, only all the photovoltaic power generation panel units are all put into operation to generate power;
when the residual electric quantity of the electric energy storage device is higher than 90% of the rated electric quantity and the illumination intensity is weak, all the photovoltaic power generation panel units are put into operation to generate power, and one of the four sets of windings of the generator is put into operation to generate power.
Further, when only part of the windings of the generator participate in the operation of generating electricity, the first winding to the fourth winding work in turn.
The invention has the beneficial effects that:
1. the invention provides a wind power station meteorological parameter measuring device based on sodar sensing, which comprises a detection system, a power supply system, a controller and the like, wherein the power supply system comprises a photovoltaic power generation device, a wind power generation device, a converter device and an electric energy storage device. By adopting the photovoltaic power generation device and the wind power generation device to generate power at the same time, the reliability of power generation is improved. Meanwhile, the reliability and the power generation efficiency of the wind power generation module are improved by adopting the converter module with high reliability and the generator.
2. By adopting the control method of the meteorological parameter measuring device for the wind power plant, the photovoltaic power generation device and the wind power generation device can work alternately according to actual conditions, the running time and the load of the generator are properly reduced, the abrasion speed of the generator is reduced, and the service life of a power supply system is prolonged.
Drawings
FIG. 1 is a schematic diagram of a meteorological parameter measurement device for a wind farm based on sodar sensing;
FIG. 2 is a schematic three-dimensional structure diagram of a meteorological parameter measuring device for a wind power plant based on acoustic radar sensing;
FIG. 3 is a schematic diagram of the electrical connections of the power supply system to the controller;
FIG. 4 is a schematic view of a stator structure of a wind turbine;
in the figure: 1. a stator module unit; 2. a magnetism isolating block; 3. stator teeth; 4. a winding; 100. sounding a weather radar; 200. a photovoltaic power generation device; 300. a wind power generation device; 400. an electric cabinet; 500. an electric energy storage device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example (b): as shown in fig. 1-2, the meteorological parameter measuring device for a wind farm based on acoustic radar sensing of the invention comprises a detection system, a power supply system and a controller, wherein the detection system and the power supply system are respectively connected with the controller; the detection system comprises a sound detection meteorological radar, an atmospheric temperature and humidity sensor and an atmospheric pressure sensor which are respectively connected with the controller; the power supply system comprises a photovoltaic power generation device, a wind power generation device, a converter device and an electric energy storage device; the photovoltaic power generation device and the wind power generation device are respectively connected with the electric energy storage device through the converter device, and the electric energy storage device is connected with the controller and used for supplying power to the controller; the controller and the remote control room can be in wireless communication or optical fiber communication. Compared with the prior art which only adopts wind power generation, the invention simultaneously adopts photovoltaic power generation and wind power generation to improve the reliability of the power generation module.
A three-dimensional structure of a meteorological parameter measuring device for a wind power plant based on sodar sensing is shown in figure 2, a detection system comprises a sonic detection meteorological radar 100, an atmospheric temperature and humidity sensor and an atmospheric pressure sensor, the sonic detection meteorological radar 100, the atmospheric temperature and humidity sensor and the atmospheric pressure sensor are all installed on an installation platform, a photovoltaic power generation device 200 and a wind power generation device 300 are all connected with an electric cabinet 400, a converter device and a controller are installed in the electric cabinet 400, and an electric energy storage device 500 is electrically connected with the controller in the electric cabinet 400. In the figure, the photovoltaic power generation apparatus 200 is of a conventional structure, and in this example, two identical photovoltaic power generation panel units are used, but the number is not limited to two, and a plurality of identical photovoltaic power generation panel units may be used, and in this example, one wind power generation apparatus 300 may be used, but a plurality of identical wind power generation apparatuses may be used, and in this example, the electric energy storage apparatus 500 may be a storage battery.
Further, as shown in fig. 3, the first converter and the second converter are both electrically connected to the electric energy storage device 500. Because the first converter belongs to a direct current-direct current converter and the second converter belongs to an alternating current-direct current converter, the control of the converters can be simplified by adopting two different types of converters, and the reliability of the converters is improved.
Further, the photovoltaic power generation apparatus 200 includes a plurality of identical photovoltaic power generation panel units, and the photovoltaic power generation panel units are connected in parallel. When one of the photovoltaic power generation panel units breaks down, normal power generation of other photovoltaic power generation panel units is not affected, and the reliability of the photovoltaic power generation device is improved.
Further, the wind power generation device 300 includes a blade and a generator, as shown in fig. 4, a stator of the generator is circumferentially divided into four stator module units 1, each adjacent stator module unit 1 is provided with a magnetic isolating block 2, each stator module unit 1 is provided with a set of three-phase winding 4, the four sets of three-phase windings 4 are arranged in a first to a fourth winding according to a circumferential direction, and the first to the fourth windings are respectively connected with the second converter in parallel. The stator of the wind power generation device adopts a multi-stator module unit structure which is isolated from each other, when one stator module unit fails, the operation of other stator module units is not influenced, and the reliability of the wind power generation device is improved.
Furthermore, each stator module unit comprises three stator teeth 3 which are arranged at equal intervals along the circumference to form a three-phase winding 4, and the three-phase winding 4 is a concentrated winding, so that the magnetic field coupling among the three-phase windings is reduced.
Further, since the photovoltaic power generation apparatus 200 can only operate to generate power under a good illumination condition, and the wind power generation apparatus 300 is not limited by the illumination condition, the photovoltaic power generation apparatus 200 should be preferentially used to generate power, and when the power generated by the photovoltaic power generation apparatus 200 is allowed, the wind power generation apparatus 300 is in a shutdown state to prolong the service life of the power supply system. Specifically, when the remaining capacity of the electric energy storage device 500 is lower than 60% of the rated capacity, all four windings of the generator are put into operation to generate electricity, and all the photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 60% and lower than 80% of rated electric quantity and the illumination intensity is strong, all photovoltaic power generation panel units are enabled to be put into operation for power generation, one set of winding in the first winding and the second winding is put into operation for power generation, one set of winding in the third winding and the fourth winding is put into operation for power generation, and two sets of windings put into operation for power generation are opposite in the circumferential direction;
when the residual electric quantity of the electric energy storage device is higher than 60% and lower than 80% of rated electric quantity and the illumination intensity is weak, all four sets of windings of the generator are put into operation to generate electricity, and all the photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 80% and lower than 90% of rated electric quantity and the illumination intensity is strong, one winding of the four windings of the generator is put into operation to generate electricity, all the photovoltaic power generation panel units are put into operation to generate electricity,
when the residual electric quantity of the electric energy storage device is higher than 80% and lower than 90% of rated electric quantity and the illumination intensity is weaker, all photovoltaic power generation panel units are enabled to be put into operation for power generation, one set of winding in the first winding and the second winding is put into operation for power generation, one set of winding in the third winding and the fourth winding is put into operation for power generation, and two sets of windings put into operation for power generation are opposite in the circumferential direction;
when the residual electric quantity of the electric energy storage device is higher than 90% of the rated electric quantity and the illumination intensity is strong, only all the photovoltaic power generation panel units are all put into operation to generate power;
when the residual electric quantity of the electric energy storage device is higher than 90% of the rated electric quantity and the illumination intensity is weak, all the photovoltaic power generation panel units are put into operation to generate power, and one of the four sets of windings of the generator is put into operation to generate power. By properly reducing the running time and the load of the generator, the abrasion speed of the generator can be reduced, and the service life of a power supply system is prolonged.
Furthermore, the first to fourth windings are respectively connected with the second converter in parallel, and when one set of windings breaks down, normal power generation of other windings is not affected, so that the reliability of the wind power generation device is improved.
Furthermore, when only part of the windings participate in operation power generation, the first winding to the fourth winding work in turn, and damage to a certain set of windings caused by long-time operation can be avoided.
The foregoing is merely an illustration of the present invention for the purpose of providing an easy understanding and is not intended to limit the present invention to the particular embodiments disclosed herein, and any technical extensions or innovations made herein are protected by the present invention.
Claims (6)
1. The utility model provides a meteorological parameter measuring device for wind-powered electricity generation field based on sodar sensing which characterized in that: the system comprises a detection system, a power supply system and a controller, wherein the detection system and the power supply system are respectively connected with the controller; the detection system comprises a sound detection meteorological radar, an atmospheric temperature and humidity sensor and an atmospheric pressure sensor which are respectively connected with the controller; the power supply system comprises a photovoltaic power generation device, a wind power generation device, a first converter, a second converter and an electric energy storage device; the photovoltaic power generation device is connected with the first converter, the wind power generation device is connected with the second converter, the first converter and the second converter are both connected with the electric energy storage device, and the electric energy storage device is connected with the controller and used for supplying power to the controller; the wind power generation device comprises a blade and a generator, a stator of the generator is divided into four stator module units along the circumference, magnetic isolating blocks are arranged on adjacent stator module units, each stator module unit is provided with a set of three-phase winding, the four sets of three-phase windings are arranged into first to fourth windings according to the circumferential direction, and the first to fourth windings are respectively connected with the second converter in parallel.
2. The sodar sensing-based meteorological parameter measurement apparatus for wind farm according to claim 1, characterized in that: each stator module unit comprises three stator teeth which are arranged at equal intervals along the circumference, coils are respectively arranged on the three stator teeth to form three-phase windings, and the three-phase windings are concentrated windings.
3. The sodar sensing-based meteorological parameter measurement apparatus for wind farms as claimed in claim 1, wherein: the first converter is a direct current-direct current converter, and the second converter is an alternating current-direct current converter.
4. The sodar sensing-based meteorological parameter measurement apparatus for wind farms as claimed in claim 1, wherein: the magnetic isolating blocks are made of non-magnetic conducting and non-conducting materials.
5. The control method of the meteorological parameter measuring device for the wind power plant based on the sodar sensing as set forth in claim 1, wherein:
when the residual electric quantity of the electric energy storage device is lower than 60% of the rated electric quantity, all four sets of windings of the generator are put into operation to generate electricity, and all the photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 60% and lower than 80% of rated electric quantity and the illumination intensity is strong, all the photovoltaic power generation panel units are put into operation to generate power, one set of winding in the first winding and the second winding is put into operation to generate power, one set of winding in the third winding and the fourth winding is put into operation to generate power, and two sets of windings put into operation to generate power are opposite in the circumferential direction;
when the residual electric quantity of the electric energy storage device is higher than 60% and lower than 80% of rated electric quantity and the illumination intensity is weak, all four sets of windings of the generator are put into operation to generate electricity, and all the photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 80% and lower than 90% of rated electric quantity and the illumination intensity is strong, one winding of four windings of the generator is put into operation to generate electricity, and all photovoltaic power generation panel units are put into operation to generate electricity;
when the residual electric quantity of the electric energy storage device is higher than 80% and lower than 90% of rated electric quantity and the illumination intensity is weaker, all the photovoltaic power generation panel units are put into operation to generate power, one set of winding in the first winding and the second winding is put into operation to generate power, one set of winding in the third winding and the fourth winding is put into operation to generate power, and the two sets of windings put into operation to generate power are opposite in the circumferential direction;
when the residual electric quantity of the electric energy storage device is higher than 90% of the rated electric quantity and the illumination intensity is strong, only all the photovoltaic power generation panel units are all put into operation to generate power;
when the residual electric quantity of the electric energy storage device is higher than 90% of the rated electric quantity and the illumination intensity is weak, all the photovoltaic power generation panel units are put into operation to generate power, and one of the four sets of windings of the generator is put into operation to generate power.
6. The control method of the meteorological parameter measuring device for the wind farm based on the sodar sensing, according to claim 5, wherein: when only part of windings of the generator participate in operation and power generation, the first winding to the fourth winding work in turn.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528306.0A CN114280619A (en) | 2021-12-15 | 2021-12-15 | Wind power plant meteorological parameter measuring device based on sodar sensing and control method |
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| CN202111528306.0A CN114280619A (en) | 2021-12-15 | 2021-12-15 | Wind power plant meteorological parameter measuring device based on sodar sensing and control method |
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| CN114280619A true CN114280619A (en) | 2022-04-05 |
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| CN202111528306.0A Pending CN114280619A (en) | 2021-12-15 | 2021-12-15 | Wind power plant meteorological parameter measuring device based on sodar sensing and control method |
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