CN113250903A - Emergency yaw control device and control method for wind generating set - Google Patents
Emergency yaw control device and control method for wind generating set Download PDFInfo
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- CN113250903A CN113250903A CN202110633287.1A CN202110633287A CN113250903A CN 113250903 A CN113250903 A CN 113250903A CN 202110633287 A CN202110633287 A CN 202110633287A CN 113250903 A CN113250903 A CN 113250903A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
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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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention provides an emergency yaw control device and a control method for a wind generating set, and relates to the technical field of emergency control of wind generating sets, wherein the control device comprises a power module, a safety relay, an industrial personal computer and a plurality of yaw modules for realizing emergency yaw of the wind generating set; the safety relay is respectively connected with the power supply module and a first terminal of the industrial personal computer; the first terminal is respectively connected with the plurality of yaw modules; the emergency power supply relay is respectively connected with the first terminal of the industrial personal computer, the standby power supply module and the control module; the control module is used for sending a closing signal or an opening signal to the emergency power supply relay after the safety chain is disconnected or reset; the emergency power supply relay is used for closing or opening a circuit between the standby power supply module and the first terminal according to the closing signal or the opening signal; the invention can have the function of yawing lateral wind under the condition that the safety chain is disconnected, and the safety of fan control is ensured.
Description
Technical Field
The invention relates to the technical field of emergency control of wind driven generators, in particular to an emergency yaw control device and method for a wind driven generator set.
Background
A safety chain loop of the wind generating set is formed by overlapping safety relay modules, when a safety chain is disconnected, a DO point 24V control power supply of the wind generating set controlled by the safety chain is cut off, and DO output actions such as hydraulic pump pressing, unit yaw control and the like cannot be executed at the moment. Currently, in the case of a broken safety chain, the safety chain is usually reset by manual or automatic control. However, in emergency situations such as unit stalling and non-feathering of blades, the safety chain cannot be reset due to factors such as over-limit of rotating speed and over-limit of vibration, and the unit cannot be manually or automatically controlled to execute yawing crosswind actions, so that serious consequences such as blade fracture and unit damage can be caused, huge economic loss is caused, and personal safety is endangered.
Disclosure of Invention
The invention provides an emergency yaw control device and an emergency yaw control method for a wind generating set, which have the function of yaw crosswind under the condition that a safety chain is disconnected and ensure the safety of fan control.
In a first aspect, the invention provides an emergency yaw control device for a wind generating set, which comprises a power module, a safety relay, an industrial personal computer and a plurality of yaw modules for realizing emergency yaw of the wind generating set; the safety relay is respectively connected with the power module and a first terminal of the industrial personal computer; the first terminal is connected with the plurality of yaw modules respectively; the emergency power supply relay is respectively connected with the first terminal of the industrial personal computer, the standby power supply module and the control module;
the control module is used for sending a closing signal or an opening signal to the emergency power supply relay after the safety chain is disconnected or reset;
the emergency power supply relay is used for closing or opening a circuit between the standby power supply module and the first terminal according to the closing signal or the opening signal.
In an optional implementation mode, the control module is an industrial personal computer, and the emergency power supply relay is connected with a second terminal of the industrial personal computer.
In an optional embodiment, the standby power supply module is an industrial personal computer, and the emergency power supply relay is connected with a standby power supply terminal of the industrial personal computer;
or, the standby power supply module is a switch power supply, and the emergency power supply relay is connected with a standby power supply terminal of the switch power supply.
In an optional embodiment, the emergency power supply relay is further connected with a zero-voltage terminal on the industrial personal computer.
In an alternative embodiment, the yaw modules include at least a hydraulic pump module, a clockwise yaw module, a counterclockwise yaw module, a yaw solenoid release module, a yaw brake pressure full release module, and a yaw brake partial release module.
In a second aspect, the invention provides a control method for an emergency yaw device of a wind generating set, which is applied to a control module of the emergency yaw control device of the wind generating set in any one of the first aspect, and the method comprises the following steps:
acquiring safety chain information sent by a safety relay;
judging whether the safety chain is disconnected or not according to the safety chain information;
if yes, sending a closing signal to the emergency power supply relay, and controlling a plurality of yaw modules to act so as to yaw the fan; if not, sending a disconnection signal to the emergency power supply relay;
the emergency power supply relay closes or opens a circuit between the standby power supply module and the first terminal according to a closing signal or an opening signal.
The invention has the beneficial effects that: the invention relates to an emergency yaw control device and a control method for a wind generating set, wherein the control device comprises an emergency power supply relay, a control module and a standby power supply module; the emergency power supply relay is controlled to act to conduct a circuit between the standby power supply module and the first terminal; therefore, the standby power supply module supplies power to the first terminal, and further supplies power to the yaw module connected with the first terminal, so that the yaw module can execute yaw crosswind action; the embodiment can ensure personal safety and property safety.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic circuit diagram of a conventional safety relay 322K4 for controlling an XPDO terminal;
FIG. 2 is a schematic circuit connection diagram of an XPDO terminal of a conventional industrial personal computer;
FIG. 3 is a schematic diagram of the system of the present invention;
FIG. 4 is a schematic diagram of the circuit connections of the emergency power relay of the present invention;
fig. 5 is another circuit schematic of the emergency power relay of the present invention;
FIG. 6 is a schematic circuit connection diagram of an industrial personal computer XP0.24 of the present invention;
FIG. 7 is a flow chart of the method of the present invention.
In the figure:
10-a power supply module; 20-a safety relay; 30-an industrial personal computer; 40-a yaw module; 50-emergency power supply relay; 60-a control module; 70-standby power supply module.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The power supply of an XPDO terminal in an industrial personal computer (full name industrial control computer, English name is IPC) is directly connected in series with the rear end of a hardware safety chain loop and is a 24V power supply terminal row influenced by the disconnection of a safety chain. And yaw instruction output, yaw pressure half-release and yaw motor electromagnetic brake release instructions of the wind turbine generator are all influenced by the safety chain. After the safety chain is disconnected, the 24V power supply of the DO output module controlled by the safety chain is cut off. As shown in fig. 2 and 3, the DO point supply loop affected by the safety chain is routed through the 322K4 safety relay 23, 24 pins (shown as dashed boxes in fig. 1) to the XPDO terminal. When the safety chain is disconnected, the pins 23 and 24 of the 322K4 relay are disconnected, and the power supply of the XPDO terminal is disconnected. Because the power supply is disconnected, the main control can not output a DO output instruction, and the unit can not control a yaw system, namely, the yaw action of the unit can not be controlled after the safety chain is disconnected.
Based on the emergency yaw control device and the emergency yaw control method for the wind generating set, a DO output 24V standby terminal which is not affected by a safety chain is found in a cabin cabinet and used for outputting an enabling signal. The DO output point is subjected to enabling control through manual or automatic judgment, and a yaw control system is powered from a bypass under the condition that a safety chain is disconnected, so that a yaw instruction is output; therefore, the function of manual or automatic yawing can be realized under the condition that the safety chain of the unit is disconnected, and the key effect on the safety of fan control is realized.
For the convenience of understanding the embodiment, the following detailed description is provided for an emergency yaw control device and a control method of a wind turbine generator system disclosed by the invention.
Referring to fig. 3, the embodiment provides an emergency yaw control device for a wind generating set, which includes a power module 10, a safety relay 20, an industrial personal computer 30, and a plurality of yaw modules 40 for realizing emergency yaw of the wind generating set; the safety relay 20 is respectively connected with the power module 10 and a first terminal of the industrial personal computer 30; the first terminals are respectively connected to the plurality of yaw modules 40; the emergency power supply relay 50 is respectively connected with a first terminal of the industrial personal computer 30, the standby power supply module 70 and the control module 60;
the control module 60 is used for sending a closing signal or an opening signal to the emergency power supply relay 50 after the safety chain is disconnected or reset;
and an emergency power supply relay 50 for closing or opening a circuit between the standby power supply module 70 and the first terminal according to a closing signal or an opening signal.
Specifically, the power module 10 is connected to the safety relay 20 for providing 24V power to the safety relay 20, that is, the power module 10 is connected to the pin 23 of the safety relay 20322K4 in fig. 1. The first terminal is an XPDO terminal row in the industrial personal computer 30; the safety relay 20 is connected to the first terminal, that is, the pin 24 of the safety relay 20322K4 in fig. 1 is connected to the XPDO terminal in fig. 2. The first terminal is connected to each of the plurality of yaw modules 40, as shown by the dashed line box in fig. 2, which means that the XPDO terminal rows 1B, 1C, 1D, 2A, 2B, etc. are connected to each of the plurality of yaw modules 40.
The safety relay 20, i.e. 322K4 in fig. 1, as shown in fig. 3, the safety relay 20 is further connected to the control module 60, and after the safety chain is broken, the safety relay 20 further sends a safety chain breaking signal to the control module 60; i.e. the opening or resetting information of the safety chain, is retrieved by the control module 60 by detecting the safety relay 20.
After acquiring the information of the disconnection of the safety chain, the control module 60 sends a closing signal to the emergency power supply relay 50; after the emergency power supply relay 50 is closed, the standby power supply module 70 is communicated with a circuit between XPDO terminals of the industrial personal computer, so that the standby power supply module 70 indirectly supplies power to each yaw module 40 through the XPDO terminal of the industrial personal computer 30. Similarly, after acquiring the safety chain reset information, the control module 60 sends a disconnection signal to the emergency power supply relay 50; after the emergency power supply relay 50 is disconnected, the circuit between the standby power supply module 70 and the XPDO terminal of the industrial personal computer 30 is disconnected; and as the safety chain is reset, the power module 10, the safety relay 20, the XPDO terminal of the industrial personal computer 30 and the yaw module 40 are conducted, so that the power module 10 supplies power to each yaw module.
The control module 60 of the present embodiment acquires the opening or closing information of the safety chain from the safety relay 20, and controls the emergency power supply relay 50 to operate according to the information; when the safety chain is disconnected, the emergency power supply relay 50 is closed, so that the standby power supply module 70, the emergency power supply relay 50, the industrial personal computer 30 and the yaw module 40 are switched on, the standby power supply module 70 supplies power to the yaw module 40, and the yaw module 40 can execute yaw crosswind action under the condition that the safety chain is disconnected, so that the safety of fan control is ensured, and personal safety and property safety are ensured.
Preferably, the control module is an industrial personal computer, and the emergency power supply relay is connected with a second terminal of the industrial personal computer.
Here, the present embodiment uses an industrial personal computer as a control module, and the second terminal is pin 46 in the industrial personal computer 350a1 in fig. 4. The relay 408K8 in the dashed line frame in fig. 4 is the emergency power supply relay 50 in this embodiment, and the a1 pin of the relay 408K8 is connected to the 46 pin of the 350a 1.
Preferably, the standby power supply module is an industrial personal computer, and the emergency power supply relay is connected with a standby power supply terminal of the industrial personal computer;
or the standby power supply module is a switch power supply, and the emergency power supply relay is connected with a standby power supply terminal of the switch power supply.
Here, redundant terminals except for the XPDO terminal strip in the industrial personal computer can be used as standby power supply terminals, and a 24V power supply which can still supply power continuously after one safety chain is disconnected can also be taken from the rear end of the switching power supply.
In the embodiment, an industrial personal computer is used as a standby power supply module, and terminals of the industrial personal computer except XPDO are used for getting power; the XP2.2 end of the industrial personal computer is used as a standby power supply terminal in the embodiment. As shown in fig. 5, power is taken from the 2B standby pin of the XP2.2 terminal, pin 14 of the relay 408K8 (shown by a dashed line in fig. 5) is connected to pin 2B of the XP2.2 terminal, and pin 11 of the relay 408K8 is connected to pin 2D of the XPDO terminal. When the safety chain is disconnected and the emergency power supply relay is closed, the 2B output enable signal of the XP2.2 terminal is sent to the XPDO terminal.
Further, the emergency power supply relay is also connected with a zero-voltage terminal on the industrial personal computer.
Specifically, to ensure the normal operation of the relay, the relay 408K8 needs to be connected to the zero volt terminal, i.e., the a2 pin of the relay 408K8 is connected to the 17B pin (shown by the dashed line box in fig. 6) of the XP0.24 terminal of the industrial control computer in fig. 6.
Preferably, the yaw module comprises at least a hydraulic pump module, a clockwise yaw module, a counterclockwise yaw module, a yaw electromagnetic brake release module, a yaw brake pressure full release module and a yaw brake partial release module.
Specifically, the control items of the 24V control power supply DO point affected by the disconnection of the safety chain are shown in table 1. Table 1 hydraulic pump, clockwise yaw, counterclockwise yaw, yaw electromagnetic brake release, yaw brake pressure full release and yaw brake partial release related to the emergency yaw of the wind generating set; the yaw module of the embodiment at least comprises a hydraulic pump module, a clockwise yaw module, a counterclockwise yaw module, a yaw electromagnetic brake release module, a yaw brake pressure full release module and a yaw brake part release module. After the safety chain is disconnected, the modules can enable the wind turbine generator to execute yaw crosswind action under the condition that the XP2.2 end provides 24V power supply.
TABLE 1
| Serial number | DO output control point | Serial number | DO |
| 1 | Low speed of |
11 | Built-in heater of |
| 2 | High speed of |
12 | |
| 3 | Gear box cooling |
13 | |
| 4 | Heater for |
14 | Yaw clockwise |
| 5 | Cooling fan of gear box | 15 | Yaw counterclockwise |
| 6 | |
16 | Yaw |
| 7 | Heater for lubricating pump of gear box | 17 | Yaw lubricating pump |
| 8 | External cooling fan of |
18 | Yaw brake pressure full release |
| 9 | Gearbox cooling fan heating | 19 | Yaw brake |
| 10 | Cooling fan in |
20 | Yaw motor internal heater |
In the embodiment, a redundant power supply loop is added on the basis of the original circuit, a relay is added, a standby DO point which is not influenced by the disconnection of a safety chain is selected from an industrial personal computer, and the standby point selected by a control module is 46 pins of 350A1, so that the emergency power supply for each navigation model under the condition of the disconnection of the safety chain is realized; this embodiment simple structure can possess the function of driftage crosswind under the safety chain disconnection condition, ensures the security of fan control, ensures personal safety and property safety.
Referring to fig. 7, the embodiment further provides an emergency yaw control method for a wind generating set, which is applied to a control module of the emergency yaw control device for the wind generating set in the above embodiment, and includes the following steps:
step S710, acquiring safety chain information sent by a safety relay;
step S720, judging whether the safety chain is disconnected according to the safety chain information;
step 730, if yes, sending a closing signal to the emergency power supply relay, and controlling a plurality of yaw modules to act so as to yaw the fan; if not, sending a disconnection signal to the emergency power supply relay;
the emergency power supply relay closes or opens a circuit between the standby power supply module and the first terminal according to the closing signal or the opening signal.
Specifically, the industrial computer of this embodiment is control module, the industrial computer acquires the safety chain information from safety relay after, judge whether the safety chain breaks through step S720, if yes, then the 350A1 end of industrial computer sends closed signal to relay 408K8, make the circuit between reserve power module and the first terminal XPDO switch on, the XP2.2 end that does not receive the safety chain control promptly gets electric and conveys to the XPDO terminal, and then make each driftage module get electric, and then can carry out the driftage crosswind action of fan.
If not, the safety chain is reset, the 350A1 end of the industrial personal computer sends a disconnection signal to the relay 408K8, a circuit between the standby power supply module and the first terminal is disconnected, and the power supply module normally provides 24V power to the XPDO end of the industrial personal computer.
It should be noted that the premise of the above steps is that the safety chain information is sent to the industrial personal computer only when the safety chain is broken or reset after the safety chain is broken, and if the safety chain is normal, the relay 408K8 is in a normally open state.
The method of the embodiment can have the function of yawing side wind under the condition that the safety chain is disconnected, and the safety of fan control is ensured.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An emergency yaw control device of a wind generating set comprises a power module, a safety relay, an industrial personal computer and a plurality of yaw modules for realizing emergency yaw of the wind generating set; the safety relay is respectively connected with the power module and a first terminal of the industrial personal computer; the first terminal is connected with the plurality of yaw modules respectively; the emergency power supply relay is connected with the first terminal of the industrial personal computer, the standby power supply module and the control module respectively;
the control module is used for sending a closing signal or an opening signal to the emergency power supply relay after the safety chain is disconnected or reset;
the emergency power supply relay is used for closing or opening a circuit between the standby power supply module and the first terminal according to the closing signal or the opening signal.
2. The emergency yaw control device of claim 1, wherein the control module is an industrial personal computer, and the emergency power supply relay is connected with a second terminal of the industrial personal computer.
3. The emergency yaw control device of the wind generating set according to claim 2, wherein the emergency power supply module is an industrial personal computer, and the emergency power supply relay is connected with a standby power supply terminal of the industrial personal computer;
or, the standby power supply module is a switch power supply, and the emergency power supply relay is connected with a standby power supply terminal of the switch power supply.
4. The emergency yaw control device of claim 1, wherein the emergency power supply relay is further connected to a zero volt terminal on the industrial personal computer.
5. The emergency yaw control apparatus of claim 1, wherein the yaw modules comprise at least a hydraulic pump module, a clockwise yaw module, a counterclockwise yaw module, a yaw electromagnetic brake release module, a yaw brake pressure full release module, and a yaw brake partial release module.
6. An emergency yaw control method for a wind generating set, which is applied to a control module of the emergency yaw control device for the wind generating set according to any one of claims 1 to 5, and comprises the following steps:
acquiring safety chain information sent by a safety relay;
judging whether the safety chain is disconnected or not according to the safety chain information;
if yes, sending a closing signal to the emergency power supply relay, and controlling a plurality of yaw modules to act so as to yaw the fan; if not, sending a disconnection signal to the emergency power supply relay;
the emergency power supply relay closes or opens a circuit between the standby power supply module and the first terminal according to a closing signal or an opening signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633287.1A CN113250903A (en) | 2021-06-07 | 2021-06-07 | Emergency yaw control device and control method for wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633287.1A CN113250903A (en) | 2021-06-07 | 2021-06-07 | Emergency yaw control device and control method for wind generating set |
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| CN113250903A true CN113250903A (en) | 2021-08-13 |
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| CN202110633287.1A Pending CN113250903A (en) | 2021-06-07 | 2021-06-07 | Emergency yaw control device and control method for wind generating set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114382645A (en) * | 2021-12-03 | 2022-04-22 | 重庆海装风电工程技术有限公司 | Wind generating set crosswind yaw electrical control system and method and generating set |
| CN116846153A (en) * | 2023-07-11 | 2023-10-03 | 深圳市西林电气技术有限公司 | Motor drive control device and control method |
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