CN111145622A - Training teaching evaluation system and method for wind power generation - Google Patents

Abstract

The invention provides a practical training teaching evaluation system and method for wind power generation aiming at the conditions that the actual fan fault types are random and the growth speed of operation and inspection personnel is low; the one end and the server electricity of channel switch are connected, the other end and the fan system loop control module electricity of channel switch are connected, the channel switch is used for corresponding the switching of incoming signal between analog system and fan system, the analog quantity module, switching value module and pulse volume module correspond with return circuit analog quantity module, the electricity is connected between return circuit switching value module and the return circuit pulse volume module, through the analog quantity module, the transmission that the analog fault signal that switching value module and pulse volume module set up the server corresponds is for return circuit analog quantity module, return circuit switching value module and return circuit pulse volume module, the electricity is connected between return circuit PLC module and the server, return circuit PLC module is used for feeding back the fault condition who corresponds to the server, the electricity is connected with analog control terminal on the server, watch-dog and display screen.

Description

Training teaching evaluation system and method for wind power generation

Technical Field

The invention discloses a practical training teaching evaluation system and method for wind power generation, and belongs to the technical field of wind power generation.

Background

Along with the rapid development of the wind power industry in recent years, talents are in urgent need, and how to rapidly cultivate the skills meeting the industry needs becomes the target of all enterprises. How to realize hierarchical training and form effective talent echelons, and the thinking is innovated on the training method to make the skills talents promote the skill level most quickly, economically and efficiently, and objectively and effectively evaluate the skill level of the staff to form good management on the skills talents, so that the staff can fully and clearly recognize the self ability, the enthusiasm of the staff for skill learning is better improved, and the training method is always the key point for research of leaders in the wind power industry.

The improvement of the skill level can be realized in no way by closing the door and building the vehicle, and the combination of theory and practice needs a great deal of practice and long-time experience accumulation.

Disclosure of Invention

The invention provides a practical training teaching evaluation system and method for wind power generation, aiming at the conditions that the actual fan fault types are random and the growth speed of operation and inspection personnel is low.

In order to solve the technical problems, the invention adopts the technical scheme that: the practical training teaching evaluation system for wind power generation comprises a fan system loop control module, wherein the fan system loop control module comprises a loop analog quantity module, a loop switching quantity module, a loop pulse quantity module and a loop PLC module, the loop analog quantity module, the loop switching quantity module and the loop pulse quantity module are all electrically connected with the loop PLC module, and the loop PLC module controls corresponding execution components to act through the loop analog quantity module, the loop switching quantity module and the loop pulse quantity module;

the fan system simulation control module comprises an analog quantity module, a switching quantity module, a pulse quantity module, a server and a channel switcher, the analog quantity module, the switching quantity module, the pulse quantity module and the channel switcher are all electrically connected with the server, one end of the channel switcher is electrically connected with the server, the other end of the channel switcher is electrically connected with a fan system loop control module, the channel switcher is used for switching corresponding input signals between the simulation system and the fan system, the analog quantity module, the switching quantity module and the pulse quantity module correspond to the loop analog quantity module, the loop switching quantity module and the loop pulse quantity module and are electrically connected with each other, and the analog quantity module, the switching quantity module and the pulse quantity module transmit corresponding simulation fault signals set by the server to the loop analog quantity module, the pulse quantity module and the loop pulse quantity module, The circuit comprises a loop switching value module and a loop pulse value module, wherein the loop PLC module is electrically connected with a server, the loop PLC module is used for feeding corresponding fault conditions back to the server, the server is electrically connected with an analog control terminal, a monitor and a display screen, the analog control terminal is used for setting and resetting analog faults, the monitor is used for monitoring the working condition of an execution component, and the display screen is used for displaying fault information and displaying monitoring pictures of the monitor.

The invention discloses a practical training teaching evaluation method for wind power generation, which is implemented according to the following steps:

the method comprises the following steps of firstly, checking circuit connection conditions among modules and elements, debugging and checking various simulation fault conditions, and ensuring that a fan simulation system can work accurately;

the second step is that: selecting an evaluation class and personnel through an analog control terminal;

the third step: setting a specific fault simulation state on a simulation control terminal, switching the fan system to the simulation system by the simulation control terminal through a server control channel switcher, correspondingly transmitting a simulation fault signal to a loop simulation quantity module and/or a loop switching quantity module and/or a loop pulse quantity module from the simulation quantity module and/or the switching quantity module and/or the pulse quantity module by the server, and controlling a corresponding execution component to generate a fault through a loop PLC (programmable logic controller);

the fourth step: after the staff is in place, the server starts timing, the staff eliminates the fault of the execution component within the specified time according to the standard steps, the server judges that the fault is qualified, and resets the corresponding fault in the simulation system, if the fault elimination is finished or not finished due to overtime, the server judges that the fault is unqualified, and resets the corresponding fault in the simulation system;

the fifth step: repeating the operation of the third step to realize continuous examination or teaching, and simultaneously setting a plurality of fault points;

and a sixth step: and the assessment personnel can grade the processing steps and the safety operation specification of the students in a field assessment or remote video monitoring assessment mode.

Compared with the prior art, the invention has the following beneficial effects.

1. According to the invention, through a fault setting mode of a fault simulation system simulation actual fault node and a large amount of targeted fault simulation training, staff can practice and master the phenomenon and the processing method of common faults of the fan in a short time. The time for accumulating the experience of the staff is greatly shortened, and the skill level of the staff grows more efficiently.

2. The invention provides a training and evaluation method for setting faults through a fault simulation system. Not only reduced frequently to change bad parts or carry out the wiring dismouting in the fan training in the past and caused the damage of spare part, terminal row. The actual skill level of the staff can be reflected effectively and fairly. The economy and the training efficiency of the training are greatly improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

In the figure: the system comprises a fan system loop control module 1, a loop analog quantity module 11, a loop switching value module 12, a loop pulse quantity module 13, a loop PLC14, a fan system analog control module 2, an analog quantity module 21, a switching value module 22, a pulse quantity module 23, a server 24, a channel switcher 25, an analog control terminal 26, a monitor 27 and a display screen 28.

Detailed Description

As shown in fig. 1, the practical training teaching evaluation system for wind power generation of the present invention includes a fan system loop control module 1, where the fan system loop control module 1 includes a loop analog quantity module 11, a loop switching quantity module 12, a loop pulse quantity module 13, and a loop PLC14 module, the loop analog quantity module 11, the loop switching quantity module 12, and the loop pulse quantity module 13 are all electrically connected to a loop PLC14 module, and the loop PLC14 module controls corresponding execution components to operate through the loop analog quantity module 11, the loop switching quantity module 12, and the loop pulse quantity module 13;

still include fan system analog control module 2, fan system analog control module 2 includes analog quantity module 21, switching value module 22, pulse quantity module 23, server 24 and passageway switch 25, analog quantity module 21, switching value module 22, pulse quantity module 23 and passageway switch 25 all are connected with server 24 electricity, the one end and the server 24 electricity of passageway switch 25 are connected, the other end and the fan system return circuit control module 1 electricity of passageway switch 25 are connected, passageway switch 25 is used for corresponding the switching of input signal between analog system and fan system, analog quantity module 21, switching value module 22 and pulse quantity module 23 correspond with return circuit analog quantity module 11, return circuit switching value module 12 and return circuit pulse quantity module 13 between the electricity be connected, through analog quantity module 21, switching value module 22 and pulse quantity module 23 correspond the analog fault signal that server 24 set up transmit return circuit analog quantity module for the return circuit analog quantity module 12 and 13 between the electricity, through analog quantity module 21, switching value module 22 and pulse quantity module 23 The system comprises a block 11, a loop switching value module 12 and a loop pulse value module 13, wherein the loop PLC14 module is electrically connected with a server 24, the loop PLC14 module is used for feeding back corresponding fault conditions to the server 24, the server 24 is electrically connected with an analog control terminal 26, a monitor 27 and a display screen 28, the analog control terminal 26 is used for setting and resetting analog faults, the monitor 27 is used for monitoring the working conditions of execution components, and the display screen 28 is used for displaying fault information and displaying monitoring pictures of the monitor 27.

The invention discloses a practical training teaching evaluation method for wind power generation, which is implemented according to the following steps:

the method comprises the following steps of firstly, checking circuit connection conditions among modules and elements, debugging and checking various simulation fault conditions, and ensuring that a fan simulation system can work accurately;

the second step is that: selecting an evaluation class and personnel through the analog control terminal 26;

the third step: setting a specific fault simulation state on the simulation control terminal 26, controlling the channel switcher 25 to switch the fan system to the simulation system through the server 24 by the simulation control terminal 26, correspondingly transmitting a simulation fault signal from the analog quantity module 21 and/or the switching value module 22 and/or the pulse quantity module 23 to the loop analog quantity module 11 and/or the loop switching value module 12 and/or the loop pulse quantity module 13 by the server 24, and controlling a corresponding execution component to generate a fault through the loop PLC 14;

the fourth step: after the employee is in position, the server 24 starts timing, the employee eliminates the fault of the execution component within the specified time and according to the standard steps, the server 24 judges that the fault is qualified, and resets the corresponding fault in the simulation system, if the fault elimination is finished or not finished due to overtime, the server 24 judges that the fault is unqualified, and resets the corresponding fault in the simulation system;

the fifth step: repeating the operation of the third step to realize continuous examination or teaching, and simultaneously setting a plurality of fault points;

and a sixth step: and the assessment personnel can grade the processing steps and the safety operation specification of the students in a field assessment or remote video monitoring assessment mode.

The present invention will be described in detail with reference to the following embodiments.

As shown in figure 2, the practical training teaching evaluation system for wind power generation comprises a wind power generation fan control loop control module, wherein the wind power generation fan control loop control module comprises a 24V signal, an actual switching value measurement point, a digital value input clamping piece and a master control PLC, the 24V signal is electrically connected with the actual switching value measurement point and is used for transmitting a signal to the actual switching value measurement point, the actual switching value measurement point is electrically connected with the digital value input clamping piece, the digital value input clamping piece is electrically connected with the master control PLC, the 24V signal is transmitted to the master control PLC through the actual switching value measurement point by the digital value input clamping piece, and if the digital value input clamping piece does not receive the signal of the 24V signal, the master control PLC reports corresponding faults and comprises a switching value module, an analog value module, a temperature analog module, a relay, a practical training PLC module, a power generation module and a, The wind power generation system comprises a data server and a channel switcher, wherein the switching value module is electrically connected with a wind power generation fan control loop control module, a relay is arranged on a circuit between the switching value module and the wind power generation fan control loop control module, the relay is electrically connected with a simulation control end through the switching value module, the simulation control end controls the relay through the switching value module to realize the electrical isolation of a simulation system and a fan system, the simulation control end is electrically connected with a practical training PLC module through the data server, the practical training PLC module is electrically connected with the switching value module, an analog value module and a temperature simulation module are arranged between the practical training PLC module and the switching value module in parallel, the practical training PLC module and the switching value module are both electrically connected with the analog value module and the temperature simulation module, and the switching value module is electrically connected with the relay through the channel switcher, and issuing a simulation instruction through the simulation control end, and sending a corresponding simulation signal to the control loop control module of the wind power generation fan by the switching value module.

The relay is connected in series between the actual switching value measuring point and the digital value input clamping piece.

The data server is electrically connected with a video monitoring module, and the video monitoring module is used for simulating the control end to monitor the whole using process of the staff operating equipment and the tool.

The invention relates to a practical training teaching evaluation method for wind power generation, which is implemented according to the following steps:

checking circuit connection conditions among modules and elements, debugging and checking various simulation fault conditions, and ensuring that a simulation system can work accurately;

the second step is that: selecting an evaluation class and personnel through an analog control end;

the third step: setting a specific fault simulation state on an analog control end, controlling a relay to be switched from a fan system to an analog system through the analog control end by a switching value module, simultaneously, after receiving a signal sent by the analog control end, a practical training PLC module calls a corresponding signal according to the fault simulation state and sends the signal to an analog value module and a temperature analog value module, the analog value module and the temperature analog value module output corresponding analog signals to the switching value module and transmit the analog signals to a wind power generation fan control loop control module through a channel switcher, and input a set analog signal value to a digital value input clamping piece, so that the wind power generation fan immediately generates a corresponding fault;

the fourth step: after the staff is in place, timing is started, the staff eliminates the fault within the specified time according to the standard steps, the simulation control end judges that the fault is qualified, the corresponding fault is reset in the simulation system, and if the fault elimination is finished or not finished within overtime, the simulation control end judges that the fault is unqualified, and the corresponding fault is reset in the simulation system;

the fifth step: repeating the operation of the third step to realize continuous examination or teaching, and simultaneously setting a plurality of fault points;

and a sixth step: and the assessment personnel can grade the processing steps and the safety operation specification of the students in a field assessment or remote video monitoring assessment mode.

The practical training teaching evaluation system comprises a whole set of switching value module, an analog value module, a temperature analog module, a relay, a practical training PLC module, a data server, a video monitoring module, evaluation software and the like. The switching value module is transmitted into a fan control loop through a relay, and the electric isolation of the simulation system and the fan system is realized. The analog quantity module adopts constant current source chips such as LM334 to generate 4-20ma signals, and the switching of voltage and current analog quantity is realized through a precise resistor and a switch. The temperature simulation module is internally provided with a precise silver contact relay through a precise resistor network to realize the switching of different resistance values, so that the resistance values of all temperature measurement monitoring points PT100 on the fan are simulated. Wherein all modules all adopt 485 total Modbus agreement and host computer software module communication to control, can realize automatic long-range fault setting and fault reset. The active circuit comprises 80 groups of switching value signals, 7 groups of analog value signals and 11 groups of temperature signals. The number of the channels at the later stage can be adjusted according to the number of signals to be simulated by the actual fan, and the simulation of all fan fault types can be realized.

The operation mechanism of each module is specifically described below.

1. Switching value module signal control

The existing fan control logic is as follows:

the actual measurement point of the switching value on the fan is mainly as follows: differential pressure switch, oil level gauge switch, wear sensor, air switch feedback contact, etc. When the common equipment is normal, the module is conducted, and a 24V signal is transmitted back to the corresponding digital quantity input card. When the corresponding sensor or switch is displaced, the 24V signal is disconnected, and the main control PLC reports a corresponding fault after the corresponding digital quantity input card cannot receive the 24V signal.

The control logic of the invention: a group of relays are connected in series in the actual measuring point and the digital input card, and the switching value module is controlled by software to control the suction and closing of the relays. The simulation of the actual faults of the actual measuring point is realized by cutting off the 24V feedback signal, and meanwhile, the faults of disconnection, virtual connection, ground short circuit and the like of the control loop can be simulated.

2. Analog module signal control

The existing fan control logic is as follows: the actual measurement points of the analog quantity on the fan are mainly as follows: PT100, pressure sensors, anemometers, wind vanes, vibration sensors, etc. And measuring the wind speed, wind direction, cabin vibration, pressure, temperature and the like when the fan runs. The actual measuring point converts various measured analog quantity information into 4-20mA electric signals to be transmitted to the analog quantity input card. The PLC calculates an actual analog quantity value according to a function set in advance, and whether the fault occurs is judged by comparing the actual analog quantity value with a fixed value of the fan.

The control logic of the invention: a channel switch is connected in series between the actual measurement point and the analog input card. The channel switcher can disconnect the analog quantity signals transmitted back by the original actual measuring points of the fan, and transmit the signals generated by the analog quantity simulation module of the evaluation system back to the analog quantity input card. The analog quantity simulation module can output a specific numerical value according to the teaching or evaluation requirements of a manager, so that the wind generating set reports a specific fault.

For some analog quantity signal modules, before the modules are connected into the master control PLC, the original signal output modules can be cut off by the aid of the channel switchers connected in series with the analog quantity modules. The analog quantity is sent to the master control PLC, and a series of analog quantity signals can be simulated, such as: wind speed, wind direction, nacelle vibration, system pressure, etc. The signal generated by simulation can simulate faults caused by disconnection, short circuit, overlarge value, undersize value and the like of the signal.

3. Temperature simulation module

The temperature measurement of the fan is mainly realized by the PT100 resistor, different resistance values are generated by combining a resistor and a network of relays, and the resistance value of the PT100 is simulated, so that the temperature is generated. Faults such as disconnection, short circuit, overhigh temperature, overlow temperature and the like of the temperature signal can be simulated.

4. Video monitoring module

The same local area network coverage of video monitoring is realized in places such as a fan cabin, a tower bottom cabinet, a training room and the like. The whole process of using the equipment and the tools operated by the staff is monitored. Through monitoring, the operation problems of improper tool selection, improper operation, improper wiring inspection sequence and the like can be found. And the staff behaviors are monitored, and a basis is provided for monitoring the staff behaviors and scoring the appraisal. The video monitoring is accessed to the system through a wireless or wired communication network on site and is displayed on a web interface.

5. Data server

The practical training teaching evaluation system records the fan faults reported by the disconnected corresponding nodes into the data server in advance. When the system is operated, a corresponding switching value or analog value module can be controlled by the system to simulate a corresponding actual fault only by selecting a corresponding fan fault name.

When the personnel operate, the personnel only need to connect the internal local area network, and can open the client through the mobile phone or the computer webpage to carry out fault setting without downloading the APP in advance and connecting the external network.

The invention evaluation system and fault setting software:

the background communication program adopts a JavaWeb program integrated with a web interface to realize the communication with hardware, the storage and reading of a database and the display of the interface. And the background database stores the system basic information, the examinee information, the examination score, the corresponding relation between the fault and the hardware, the corresponding fault processing method, the fault processing flow, the use of the tools and the like. And the user sets the fault in the interface operation and sends an instruction to the equipment through the background JavaModbus program, so that the actual hard fault is generated. The foreground web interface is developed by adopting html5, the conditions of a computer browser, a mobile phone browser and a Pad browser are considered for adaptation during development, and therefore a teacher can operate and check the web interface in a classroom or on site.

The interface function module mainly comprises the following modules:

1. fault setting

The corresponding relation between the hardware module and the corresponding fan fault is set, and the setting is generally performed when the system is installed. The simulation of all faults of the fan cabin cabinet, the fan tower bottom cabinet, the gear box system, the generator system, the hydraulic station system and the variable pitch system and the simulation of partial faults of the frequency converter system can be realized.

2. Fault simulation and reset

Different types of faults of the fan can be selected, after the selection is completed, fault simulation is clicked, and the affected switching value and analog value (the analog value can be manually input) are set to be in a fault state, so that the fan breaks down. The method has the functions of simultaneously setting a plurality of fault points, and independently resetting different faults or simultaneously resetting all fault points.

3. And (5) completing timing and score recording of examination operation flow and fault processing.

The student information can be input in advance, the examination start is selected, the examination process of the fault corresponding to the current examination of the student is listed, the teacher can compare and judge the operation steps and the standard process of the student and the specified processing time, and finally the student score is given and recorded by comprehensively checking the steps and the time used for fault processing. After the student finds the failure cause, record the score and reset the system.

According to the invention, through a fault setting mode of a fault simulation system simulation actual fault node and a large amount of targeted fault simulation training, staff can practice and master the phenomenon and the processing method of common faults of the fan in a short time. The time for accumulating the experience of the staff is greatly shortened, and the skill level of the staff grows more efficiently.

The invention provides a training and evaluation method for setting faults through a fault simulation system. Not only reduced frequently to change bad parts or carry out the wiring dismouting in the fan training in the past and caused the damage of spare part, terminal row. The practical skill level of the staff can be reflected effectively and fairly, and the economy and the training efficiency of the training are greatly improved.

The invention can set different faults aiming at a variable pitch system, a yaw system, a gear box cooling circulation system, a generator control and frequency conversion system and a master control system, and realizes the excitation and the reset of the faults through a switching value module.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (2)

1. The practical training teaching evaluation system for wind power generation is characterized by comprising a fan system loop control module (1), wherein the fan system loop control module (1) comprises a loop analog quantity module (11), a loop switching quantity module (12), a loop pulse quantity module (13) and a loop PLC (14) module, the loop analog quantity module (11), the loop switching quantity module (12) and the loop pulse quantity module (13) are all electrically connected with the loop PLC (14) module, and the loop PLC (14) module controls corresponding execution components to act through the loop analog quantity module (11), the loop switching quantity module (12) and the loop pulse quantity module (13);

still include fan system analog control module (2), fan system analog control module (2) are including analog quantity module (21), switching value module (22), pulse quantity module (23), server (24) and passageway switch (25), analog quantity module (21), switching value module (22), pulse quantity module (23) and passageway switch (25) all are connected with server (24) electricity, the one end and server (24) of passageway switch (25) are connected electrically, the other end and fan system return circuit control module (1) electricity of passageway switch (25) are connected, passageway switch (25) are used for corresponding the switching of input signal between analog system and fan system, analog quantity module (21), switching value module (22) and pulse quantity module (23) correspond with return circuit analog quantity module (11), The loop switching value module (12) is electrically connected with the loop pulse value module (13), analog fault signals set by a server (24) are correspondingly transmitted to a loop analog quantity module (11), a loop switching quantity module (12) and a loop pulse quantity module (13) through the analog quantity module (21), the switching quantity module (22) and the pulse quantity module (23), the loop PLC (14) module is electrically connected with the server (24), the loop PLC (14) module is used for feeding back the corresponding fault condition to the server (24), the server (24) is electrically connected with a simulation control terminal (26), a monitor (27) and a display screen (28), the analog control terminal (26) is used for setting and resetting analog faults, the monitor (27) is used for monitoring the working condition of the execution component, the display screen (28) is used for displaying fault information and displaying a monitoring picture of the monitor (27).

2. The practical training teaching evaluation method for wind power generation according to claim 1, which is implemented by the following steps:

the method comprises the following steps of firstly, checking circuit connection conditions among modules and elements, debugging and checking various simulation fault conditions, and ensuring that a fan simulation system can work accurately;

the second step is that: selecting an evaluation class and a person through an analog control terminal (26);

the third step: setting a specific fault simulation state on an analog control terminal (26), wherein the analog control terminal (26) controls a channel switcher (25) to switch the fan system to the analog system through a server (24), meanwhile, the server (24) correspondingly transmits a simulation fault signal from an analog quantity module (21) and/or a switching value module (22) and/or a pulse quantity module (23) to a loop analog quantity module (11) and/or a loop switching value module (12) and/or a loop pulse quantity module (13), and a loop PLC (14) controls a corresponding execution component to generate a fault;

the fourth step: after the staff is in position, the server (24) starts timing, the staff eliminates the fault of the execution component within the specified time according to the standard steps, the server (24) judges that the fault is qualified, and resets the corresponding fault in the simulation system, if the fault elimination is finished or not finished due to overtime, the server (24) judges that the fault is unqualified, and resets the corresponding fault in the simulation system;

the fifth step: repeating the operation of the third step to realize continuous examination or teaching, and simultaneously setting a plurality of fault points;

and a sixth step: and the assessment personnel can grade the processing steps and the safety operation specification of the students in a field assessment or remote video monitoring assessment mode.

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