A wind turbine safety chain simulation training platform

Abstract

The utility model relates to fan safety field especially relates to a wind generating set safety chain simulation practical training platform, and this platform includes platform body and sets up safety chain simulation equipment on it, and safety chain simulation equipment includes safety chain simulation part, state indicating part and 24V direct current source for power supply, and safety chain simulation part is used for simulating the on-off state of each node of safety chain, and safety chain simulation part includes safety relay and a plurality of and same number's 24V relay and analog fault button, and one 24V relay and one analog fault button correspond to simulate a safety chain node, and manual control analog fault button is to simulate the closure or disconnection of safety chain node, and state indicating part is used for indicating the on-off state of each node of safety chain, the utility model discloses through safety chain simulation part simulates the fault of each node of safety chain, can correspond in state indicating part and clearly show the on-off state of the node, and can be well applicable to new energy electric power practitioner daily training.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine safety technology, and in particular to a simulation training platform for the safety chain of wind turbine generator sets. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] The safety chain of wind turbine generators is a crucial part of wind turbine generator protection, ensuring the safe and stable operation of the generators.

[0004] In their daily work, employees in the new energy power production industry often lack in-depth understanding of the wind turbine safety chain system, and the various safety chain nodes during unit operation are not intuitive enough, making it difficult to frequently shut down the unit for production employees to learn. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a wind turbine generator set safety chain simulation training platform. The platform simulates the failure of each node in the safety chain through safety chain simulation components, and the on / off status of the node can be clearly displayed in the status indicator component. It is well applicable to the daily training of new energy power practitioners.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A safety chain simulation training platform for wind turbine generator sets is disclosed. The training platform includes a platform body and a safety chain simulation device mounted on the platform body. The safety chain simulation device includes a safety chain simulation component, a status indicator component, and a 24V DC power supply for power supply. The safety chain simulation component is used to simulate the on / off state of each node in the safety chain. The safety chain simulation component includes a safety relay and several identical 24V relays and simulated fault buttons. One 24V relay and one simulated fault button correspond to one safety chain node. The simulated fault button can be manually controlled to simulate the closing or opening of the safety chain node. The status indicator component is used to indicate the on / off state of each node in the safety chain.

[0007] Furthermore, The 24V relay includes a relay coil and normally open contacts; The simulated fault button is a normally closed button. One end of the simulated fault button is connected to the 24V terminal of the 24V DC power supply, and the other end of the simulated fault button is connected to one end of the relay coil. The other end of the relay coil is connected to the 0V terminal of the 24V DC power supply. The safety relay includes a power supply positive terminal, a power supply negative terminal, a voltage output positive terminal, a voltage output negative terminal, and a signal receiving terminal; The positive terminal of the power supply is connected to the 24V terminal of the 24V DC power supply, and the negative terminal of the power supply is connected to the 0V terminal of the 24V DC power supply. The positive terminal of the voltage output is short-circuited with the negative terminal of the voltage output. The positive terminal of the voltage output is connected in series with a normally open contact of each of the 24V relays.

[0008] Furthermore, The safety relay is also provided with a reset circuit, in which a reset button is connected in series.

[0009] Furthermore, The nodes of the safety chain include the overspeed node, pitch safety chain node, vibration switch node, tower base emergency stop node, nacelle emergency stop node, and yaw cable twist node. The 24V relay includes a first relay, a second relay, a third relay, a fourth relay, a fifth relay, and a sixth relay, which correspond to the above-mentioned safety chain nodes respectively. A normally open contact of each 24V relay is connected in series between the positive voltage output terminal and the signal receiving terminal. The normally open contact corresponding to the overspeed node is close to the positive voltage output terminal. The simulated fault buttons include a first button, a second button, a third button, a fourth button, a fifth button, and a sixth button, which correspond to the aforementioned security chain nodes, respectively.

[0010] Furthermore, The status indicator component includes a running indicator light and an abnormal indicator light. The running indicator light is a red light simulating the closure of each node in the safety chain, and the abnormal indicator light is a green light simulating the disconnection of each node in the safety chain.

[0011] Furthermore, The 24V relay also includes a normally closed contact. One end of the normally closed contact is connected to the 24V terminal of the 24V DC power supply, and the other end of the normally closed contact is connected to one end of the fault indicator light. The other end of the fault indicator light is connected to the 0V terminal of the 24V DC power supply. The abnormality indicator lights include a first green light, a second green light, a third green light, a fourth green light, a fifth green light, and a sixth green light, respectively corresponding to the overspeed node, the pitch safety chain node, the vibration switch node, the tower base emergency stop node, the nacelle emergency stop node, and the yaw cable twist node.

[0012] Furthermore, The operation indicator lights include a first red light, a second red light, a third red light, a fourth red light, a fifth red light, and a sixth red light, respectively corresponding to the overspeed node, the pitch safety chain node, the vibration switch node, the tower base emergency stop node, the engine room emergency stop node, and the yaw cable twist node. One end of the first red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contacts of the first and second relays connected in series. One end of the second red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contact of the second relay and the normally open contact of the third relay connected in series. One end of the third red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contact of the third relay and the normally open contact of the fourth relay connected in series. One end of the fourth red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contacts of the fourth and fifth relays connected in series. One end of the fifth red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contacts of the fifth and sixth relays connected in series. One end of the sixth red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected to the end of the sixth relay's normally open contact that is furthest from the fifth relay's normally open contact.

[0013] Furthermore, The input terminal of the 24V DC power supply is connected to an AC 220V power supply, and the output terminal provides a 24V DC voltage.

[0014] Furthermore, The platform body includes a display frame and a display panel. The display panel is hinged to the display frame. The safety chain simulation component and the 24V DC power supply are both located inside the display frame. The status indicator component is located on the display panel.

[0015] Furthermore, The bottom of the display frame is equipped with self-locking casters, and the display panel is made of acrylic sheet.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: By simulating the failure of each node in the safety chain using the safety chain simulation component, the on / off status (whether closed or open) of the node can be clearly displayed in the status indicator component, which is well applicable to the daily training of practitioners in the new energy power industry.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings.

[0018] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a wind turbine generator set safety chain simulation training platform according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a power supply circuit according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a loop for simulating button control of each node in a safety chain according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a safety chain simulation and feedback loop for a wind turbine generator set according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the feedback loop for the abnormal indicator lights at each node of the safety chain in one embodiment of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1 As shown in the figure, this utility model embodiment provides a safety chain simulation training platform for wind turbine generator sets. The training platform includes a platform body and a safety chain simulation device installed on the platform body. The safety chain simulation device includes a safety chain simulation component, a status indicator component, and a 24V DC power supply 1T1 for power supply. The safety chain simulation component is used to simulate the on / off state of each node in the safety chain. The safety chain simulation component includes a safety relay A11 and several identical 24V relays and simulated fault buttons. One 24V relay and one simulated fault button correspond to simulate one safety chain node. The simulated fault button can be manually controlled to simulate the closing or opening of the safety chain node. The status indicator component is used to indicate the on / off state of each node in the safety chain.

[0023] In the above technical solution, the platform body not only facilitates the installation of safety chain simulation equipment, but also facilitates demonstration for production personnel to learn from. The 24V DC power supply 1T1 can effectively power the safety chain simulation components and status indication components. The safety chain simulation components include safety relay A11, 24V relays, and simulated fault buttons. Several 24V relays and simulated fault buttons are provided in equal numbers. One 24V relay and one simulated fault button form a group, corresponding to simulate one safety chain node. The safety chain simulation components can effectively simulate the failure of each node in the safety chain, and the on / off status (closed or open) of the node can be clearly displayed in the status indication component. Therefore, it is well-suited for the daily training of new energy power industry personnel.

[0024] As a preferred technical solution, the 24V relay includes a relay coil and a normally open contact; the simulated fault button is a normally closed button, one end of which is connected to the 24V terminal of the 24V DC power supply 1T1, and the other end of which is connected to one end of the relay coil, and the other end of the relay coil is connected to the 0V terminal of the 24V DC power supply 1T1; the safety relay A11 includes a power supply positive terminal A1, a power supply negative terminal A2, a voltage output positive terminal S11, a voltage output negative terminal S21, and a signal receiving terminal S12; the power supply positive terminal A1 is connected to the 24V terminal of the 24V DC power supply 1T1, and the power supply negative terminal A2 is connected to the 0V terminal of the 24V DC power supply 1T1; the voltage output positive terminal S11 and the voltage output negative terminal S21 are short-circuited; the voltage output positive terminal S11 and the signal receiving terminal S12 are connected in series with one normally open contact of each 24V relay.

[0025] This embodiment provides a circuit for simulating control of a safety chain node using a button. It is powered by 24V and can directly control the energization or de-energization of the corresponding relay coil by manually controlling the simulated fault button.

[0026] In this embodiment, the positive power supply terminal A1 and the negative power supply terminal A2 of the safety relay A11 are connected to a 24V DC power supply 1T1, which provides 24V voltage to the safety relay A11. A normally open contact of each 24V relay is connected in series between the voltage output positive terminal S11 and the signal receiving terminal S12, forming a safety chain loop for simulation. Each normally open contact of the 24V relay represents a safety chain node. When the voltage output positive terminal S11 outputs 24V voltage and all normally open contacts of the series-connected 24V relays are closed, the safety chain loop is active, and the signal receiving terminal S12 can receive a feedback signal, indicating that the safety chain is normal. When any normally open contact of a 24V relay is open, the signal receiving terminal S12 will not receive a feedback signal, and the safety relay A11 will report a fault, indicating that the safety chain is abnormal. In this embodiment, the signal receiving terminal S12 can be understood as a floating point, mainly used to receive the voltage signal emitted by the voltage output positive terminal S11.

[0027] As a preferred technical solution, the safety relay A11 is also provided with a reset circuit, in which a reset button SB7 is connected in series.

[0028] The reset circuit is a crucial part of the safety relay A11 used to restore normal system operation. When a system malfunctions or an emergency shutdown occurs, the safety relay A11 disconnects the control circuit to ensure equipment cessation and prevent personal injury. The reset circuit's function is to reactivate the safety relay A11 through a specific operation (such as pressing the reset button SB7), thereby restoring normal system operation.

[0029] The reset button SB7 is a key component in operating the reset circuit. When the reset button SB7 is pressed, a signal is transmitted to the logic section of the safety relay A11. The logic circuit analyzes the input signal to confirm whether the system is safe. If the safety conditions are met, the relay is reactivated, thus restoring its control function.

[0030] By setting up a reset circuit and a reset button SB7, the safety relay A11 can work better, thus facilitating the implementation of the wind turbine generator safety chain simulation function.

[0031] In this embodiment, the safety relay A11 is model PSR-ESM4_B. In actual implementation, it can be replaced with other similar safety relays according to actual needs.

[0032] As a preferred technical solution, the safety chain nodes include an overspeed node, a pitch safety chain node, a vibration switch node, a tower base emergency stop node, a nacelle emergency stop node, and a yaw cable twist node; the 24V relays include a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a fifth relay K5, and a sixth relay K6, respectively, corresponding to the above-mentioned safety chain nodes. A normally open contact of each 24V relay is connected in series between the voltage output positive terminal S11 and the signal receiving terminal S12, with the normally open contact corresponding to the overspeed node being closer to the voltage output positive terminal S11; the simulated fault buttons include a first button SB1, a second button SB2, a third button SB3, a fourth button SB4, a fifth button SB5, and a sixth button SB6, respectively, corresponding to the above-mentioned safety chain nodes.

[0033] Based on the actual needs of wind turbine generator set safety chain simulation training, the nodes of the safety chain in this embodiment mainly include the overspeed node, pitch safety chain node, vibration switch node, tower base emergency stop node, nacelle emergency stop node, and yaw cable twist node. These six nodes constitute the safety chain loop used for wind turbine generator set safety chain simulation. Figure 4 As shown in the diagram. Among them, the vibration switch node mainly monitors whether the unit has large horizontal or vertical swing; the pitch safety chain node reflects the operating status of the unit through the pitch system safety chain; and the overspeed node monitors whether the wind turbine generator speed is within the operating range.

[0034] Accordingly, the 24V relays include a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a fifth relay K5, and a sixth relay K6, each corresponding to one of the aforementioned safety chain nodes; the simulated fault buttons include a first button SB1, a second button SB2, a third button SB3, a fourth button SB4, a fifth button SB5, and a sixth button SB6, each corresponding to one of the aforementioned safety chain nodes. In this embodiment, all simulated fault buttons are normally closed buttons. The circuit diagram of the button simulation control of each node in the safety chain in this embodiment is shown below. Figure 3 As shown. By manually controlling the simulated fault button, the energization or de-energization of the corresponding relay coil can be directly controlled. For example, by manually controlling the first button SB1, the energization or de-energization of the first relay K1 coil can be directly controlled.

[0035] As a preferred technical solution, the status indicator component includes a running indicator light and an abnormal indicator light. The running indicator light is a red light simulating the closure of each node in the safety chain, and the abnormal indicator light is a green light simulating the disconnection of each node in the safety chain.

[0036] In this embodiment, the status indicator component can more intuitively reflect the on / off status (closed or open) of each node in the safety chain by setting up operation indicator lights and abnormal indicator lights, thus making it well applicable to the daily training of new energy power practitioners.

[0037] As a preferred technical solution, the 24V relay further includes a normally closed contact. One end of the normally closed contact is connected to the 24V terminal of the 24V DC power supply 1T1, and the other end of the normally closed contact is connected to one end of the abnormal indicator light. The other end of the abnormal indicator light is connected to the 0V terminal of the 24V DC power supply 1T1. The abnormal indicator light includes a first green light L7, a second green light L8, a third green light L9, a fourth green light L10, a fifth green light L11, and a sixth green light L12, respectively, corresponding to the overspeed node, the pitch safety chain node, the vibration switch node, the tower base emergency stop node, the nacelle emergency stop node, and the yaw cable twist node.

[0038] This provides the green light feedback loop for each node in the security chain. A specific loop diagram in this embodiment is shown below. Figure 5 As shown. When the coil of the 24V relay is de-energized, the normally closed contact of the 24V relay closes, thus illuminating the corresponding fault indicator light. For example, pressing the second button SB2 (the simulated fault button corresponding to the pitch safety chain node) simulates a fault in the pitch safety chain node. The coil of the second relay K2 (the relay corresponding to the pitch safety chain node) is de-energized, and the normally closed contact of the second relay K2 closes, thus illuminating the second green light L8 (the fault indicator light corresponding to the pitch safety chain node).

[0039] As a preferred technical solution, the operation indicator lights include a first red light L1, a second red light L2, a third red light L3, a fourth red light L4, a fifth red light L5, and a sixth red light L6, respectively corresponding to the overspeed node, pitch safety chain node, vibration switch node, tower base emergency stop node, engine room emergency stop node, and yaw cable twist node; one end of the first red light L1 is connected to the 0V terminal of the 24V DC power supply 1T1, and the other end is connected between the normally open contact of the first relay K1 and the normally open contact of the second relay K2 connected in series; the second red light L2... One end of the first red light L3 is connected to the 0V terminal of the 24V DC power supply 1T1, and the other end is connected between the normally open contact of the second relay K2 and the normally open contact of the third relay K3 connected in series; one end of the third red light L3 is connected to the 0V terminal of the 24V DC power supply 1T1, and the other end is connected between the normally open contact of the third relay K3 and the normally open contact of the fourth relay K4 connected in series; one end of the fourth red light L4 is connected to the 0V terminal of the 24V DC power supply 1T1, and the other end is connected between the normally open contact of the fourth relay K4 and the normally open contact of the fifth relay K5 connected in series. One end of the fifth red light L5 is connected to the 0V terminal of the 24V DC power supply 1T1, and the other end is connected between the normally open contact of the fifth relay K5 and the normally open contact of the sixth relay K6 connected in series; one end of the sixth red light L6 is connected to the 0V terminal of the 24V DC power supply 1T1, and the other end is connected to the end of the normally open contact of the sixth relay K6 away from the normally open contact of the fifth relay K5.

[0040] In this embodiment, when all nodes of the safety chain are functioning normally, all relay coils are energized, all normally open contacts of the relays are closed, and the entire safety chain circuit is conductive. Correspondingly, all operating indicator lights (first red light L1, second red light L2, third red light L3, fourth red light L4, fifth red light L5, and sixth red light L6) illuminate. The safety chain and feedback circuit in this embodiment are as follows: Figure 4 As shown.

[0041] In this embodiment, the normally open contact corresponding to the overspeed node (i.e., the normally open contact of the first relay K1) is close to the positive voltage output terminal S11. That is, one normally open contact of the first relay K1, the second relay K2, the third relay K3, the fourth relay K4, and the fifth relay K5 are connected in series between the positive voltage output terminal S11 and the signal receiving terminal S12. Specifically, as long as the normally open contact of the first relay K1 is closed, the first red light L1 can be lit; the first red light L1 and the second red light L2 can be lit only when the normally open contacts of the first relay K1 and the second relay K2 are both closed; the first red light L1, the second red light L2, and the third red light L3 can be lit only when the normally open contacts of the first relay K1, the second relay K2, and the third relay K3 are all closed; and so on. Following the sequence of overspeed node, pitch safety chain node, vibration switch node, tower base emergency stop node, nacelle emergency stop node, and yaw cable twist node, the operating indicator lights for subsequent safety chain nodes will only illuminate if all preceding safety chain nodes are functioning normally (the corresponding normally open relay contacts are closed). If the overspeed node malfunctions (faults), all operating indicator lights (first red light L1, second red light L2, third red light L3, fourth red light L4, fifth red light L5, and sixth red light L6) will be extinguished. The operating indicator lights in this embodiment, using the above connection method, can intuitively simulate and display the actual operation of the safety chain circuit, thus better meeting the actual needs of wind turbine generator safety chain simulation training.

[0042] As a preferred technical solution, the input terminal of the 24V DC power supply 1T1 is connected to an AC 220V power supply, and the output terminal provides a 24V DC voltage.

[0043] In this embodiment, the 24V DC power supply 1T1 is powered by a 220V AC power supply, which facilitates better output of 24V DC voltage at the output terminal of the 24V DC power supply 1T1. The power supply circuit of the 24V DC power supply 1T1 in this embodiment is as follows: Figure 2As shown.

[0044] As a preferred technical solution, the platform body includes a display frame and a display board. The display board is hinged to the display frame. The safety chain simulation component and the 24V DC power supply 1T1 are both located inside the display frame, and the status indicator component is located on the display board.

[0045] In this embodiment, the platform body includes a display frame and a display board, which can well support the installation of the entire safety chain simulation equipment (including safety chain simulation components, 24V DC power supply 1T1 and status indicator components), and also facilitate the display for production practitioners to learn.

[0046] As a preferred technical solution, the bottom of the display frame is equipped with self-locking casters, and the display panel is made of acrylic sheet.

[0047] As a demonstration device, the wind turbine generator safety chain simulation training platform in this embodiment adopts a movable design. Self-locking casters (with locking function) are installed at the bottom of the display frame, allowing for easy movement of the entire platform, thus facilitating teaching, demonstrations, and practical operations. The display panel is made of acrylic sheet, which facilitates the fabrication and installation of status indicator components (operation indicator lights and abnormal indicator lights) and makes it easy to display.

[0048] In some embodiments, the system name is indicated above the display board (acrylic board), and all components are marked with dual names (i.e., component name and corresponding drawing number) to facilitate teaching.

[0049] In some embodiments, the acrylic display board can also display the electrical schematic diagram of the safety chain as a whole, facilitating practical training and learning.

[0050] The wind turbine generator set safety chain simulation training platform provided in this embodiment of the utility model can intuitively reflect the principle and function of each node of the safety chain. For example, the safety chain includes hard node circuits such as vibration, emergency stop, pitch safety chain, and overspeed. This solution simulates the failure of each hard node and can clearly show whether the node is closed or open in the status indicator component. It is suitable for the daily training of practitioners in the new energy power industry.

[0051] This utility model embodiment simulates each node of the safety chain using a safety chain simulation component (safety relay A11, 24V relay, and simulated fault button). Each node can accurately reflect the safety chain's operational status, and the operating status of the safety chain is intuitively displayed through the changing states of the indicator lights on the acrylic display board.

[0052] In this embodiment, each node in the safety chain, such as vibration, emergency stop, pitch safety chain, and overspeed, is simulated by a relay. Under normal circumstances, all relays are energized and provide safety chain signals through normally open contacts. Pressing the corresponding button (i.e., the simulated fault button) will disconnect the corresponding node's simulated relay (relay coil de-energized), thus simulating the corresponding action signal feedback. The acrylic display panel shows the overall electrical schematic of the safety chain and provides intuitive indication through status indicator components. The LED beads (including red and green LEDs) are controlled by normally open and normally closed contacts. The normally open contacts correspond to red LEDs (i.e., running indicator lights), and the normally closed contacts correspond to green LEDs (i.e., abnormal indicator lights). The on / off state of the green and red LED beads is controlled by the normally open and normally closed contacts of the corresponding relays, intuitively reflecting the operating status of the entire safety chain loop. For example, under normal conditions, each node in the safety chain, such as vibration, emergency stop, pitch safety chain, and overspeed, is normally closed (simulating a fault button that is normally closed, a relay coil that is energized, and a relay normally open contact that is closed). On the acrylic display board, each node is shown as red and closed. When any node simulates a fault, the corresponding relay is de-energized, the normally closed contact closes, the corresponding abnormal indicator light turns green, and the node on the acrylic display board is shown as open. In this way, the role of each node in the safety chain is intuitively demonstrated.

[0053] Figure 2-5 The relevant descriptions of each component are shown in the table below.

[0054]

[0055] The following reference Figure 2-5 As shown, the working principle of the wind turbine generator set safety chain simulation training platform of this utility model embodiment will be further described.

[0056] Working Principle: When the power circuit breakers 1F1 and 2F1 are closed, safety relay A11 is energized, and all simulated node relays are energized. The normally open contacts of all 24V relays K1~K6 in the entire circuit close, and the red lights (running indicator lights) L1~L6 illuminate. At this time, the acrylic circuit diagram's safety chain is in a closed, normal state. When any of the safety chain simulation buttons (i.e., simulated fault buttons) from SB1 to SB6 is pressed, a simulated node fault occurs. The corresponding relay de-energizes, its normally open contact opens, and the corresponding green lights (abnormal indicator lights) L7~L12 illuminate. At this time, the acrylic circuit diagram's safety chain is open, and the corresponding simulated fault node is in an open circuit state. When the simulated fault is resolved, pressing the reset button SB7 of the safety relay restores the entire safety chain circuit to normal, and the acrylic board safety chain schematic diagram displays a normal operating state.

[0057] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0058] The parts not mentioned in the above embodiments are the same as or can be implemented using existing technologies, and will not be further described here.

[0059] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A simulation training platform for the safety chain of a wind turbine generator set, characterized in that, The training platform includes a platform body and a safety chain simulation device mounted on the platform body. The safety chain simulation device includes a safety chain simulation component, a status indicator component, and a 24V DC power supply for power supply. The safety chain simulation component is used to simulate the on / off state of each node in the safety chain. The safety chain simulation component includes a safety relay and several identical 24V relays and simulated fault buttons. One 24V relay and one simulated fault button correspond to one safety chain node. The simulated fault button can be manually controlled to simulate the closing or opening of the safety chain node. The status indicator component is used to indicate the on / off state of each node in the safety chain.

2. The wind turbine generator set safety chain simulation training platform according to claim 1, characterized in that, The 24V relay includes a relay coil and normally open contacts; The simulated fault button is a normally closed button. One end of the simulated fault button is connected to the 24V terminal of the 24V DC power supply, and the other end of the simulated fault button is connected to one end of the relay coil. The other end of the relay coil is connected to the 0V terminal of the 24V DC power supply. The safety relay includes a power supply positive terminal, a power supply negative terminal, a voltage output positive terminal, a voltage output negative terminal, and a signal receiving terminal; The positive terminal of the power supply is connected to the 24V terminal of the 24V DC power supply, and the negative terminal of the power supply is connected to the 0V terminal of the 24V DC power supply. The positive terminal of the voltage output is short-circuited with the negative terminal of the voltage output. The positive terminal of the voltage output is connected in series with a normally open contact of each of the 24V relays.

3. The wind turbine generator set safety chain simulation training platform according to claim 2, characterized in that, The safety relay is also provided with a reset circuit, in which a reset button is connected in series.

4. The wind turbine generator set safety chain simulation training platform according to claim 2, characterized in that, The nodes of the safety chain include the overspeed node, pitch safety chain node, vibration switch node, tower base emergency stop node, nacelle emergency stop node, and yaw cable twist node. The 24V relay includes a first relay, a second relay, a third relay, a fourth relay, a fifth relay, and a sixth relay, which correspond to the above-mentioned safety chain nodes respectively. A normally open contact of each 24V relay is connected in series between the positive voltage output terminal and the signal receiving terminal. The normally open contact corresponding to the overspeed node is close to the positive voltage output terminal. The simulated fault buttons include a first button, a second button, a third button, a fourth button, a fifth button, and a sixth button, which correspond to the aforementioned security chain nodes, respectively.

5. A simulation training platform for the safety chain of a wind turbine generator set according to claim 4, characterized in that, The status indicator component includes a running indicator light and an abnormal indicator light. The running indicator light is a red light simulating the closure of each node in the safety chain, and the abnormal indicator light is a green light simulating the disconnection of each node in the safety chain.

6. The wind turbine generator set safety chain simulation training platform according to claim 5, characterized in that, The 24V relay also includes a normally closed contact. One end of the normally closed contact is connected to the 24V terminal of the 24V DC power supply, and the other end of the normally closed contact is connected to one end of the fault indicator light. The other end of the fault indicator light is connected to the 0V terminal of the 24V DC power supply. The abnormality indicator lights include a first green light, a second green light, a third green light, a fourth green light, a fifth green light, and a sixth green light, respectively corresponding to the overspeed node, the pitch safety chain node, the vibration switch node, the tower base emergency stop node, the nacelle emergency stop node, and the yaw cable twist node.

7. The wind turbine generator set safety chain simulation training platform according to claim 5, characterized in that, The operation indicator lights include a first red light, a second red light, a third red light, a fourth red light, a fifth red light, and a sixth red light, respectively corresponding to the overspeed node, the pitch safety chain node, the vibration switch node, the tower base emergency stop node, the engine room emergency stop node, and the yaw cable twist node. One end of the first red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contacts of the first and second relays connected in series. One end of the second red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contact of the second relay and the normally open contact of the third relay connected in series. One end of the third red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contact of the third relay and the normally open contact of the fourth relay connected in series. One end of the fourth red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contacts of the fourth and fifth relays connected in series. One end of the fifth red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected between the normally open contacts of the fifth and sixth relays connected in series. One end of the sixth red light is connected to the 0V terminal of a 24V DC power supply, and the other end is connected to the end of the sixth relay's normally open contact that is furthest from the fifth relay's normally open contact.

8. The wind turbine generator set safety chain simulation training platform according to claim 1, characterized in that, The input terminal of the 24V DC power supply is connected to an AC 220V power supply, and the output terminal provides a 24V DC voltage.

9. A simulation training platform for the safety chain of a wind turbine generator set according to any one of claims 1-8, characterized in that, The platform body includes a display frame and a display panel. The display panel is hinged to the display frame. The safety chain simulation component and the 24V DC power supply are both located inside the display frame. The status indicator component is located on the display panel.

10. A simulation training platform for the safety chain of a wind turbine generator set according to claim 9, characterized in that, The bottom of the display frame is equipped with self-locking casters, and the display panel is made of acrylic sheet.

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