Integrated safety chain module and wind turbine

Abstract

This invention proposes an integrated safety chain module and a wind turbine, comprising: a digital input module, a central processing unit (CPU), and a digital output module connected in sequence. The digital input module connects to the external wind turbine equipment, receives the input digital signals, and transmits them to the CPU. The CPU processes the digital input signals and transmits decision signals to the digital output module. The digital output module connects to the external wind turbine equipment and outputs the decision signals to it. The integrated safety chain module provided by this invention solves the technical problems of poor reliability and response speed, poor adaptability to operating conditions, and reliance on external programming in existing chip-type safety chain modules. Using the integrated safety chain module provided by this invention enables more convenient distributed deployment, adapts to harsh operating conditions, and does not rely on externally provided CPUs for programming, thus saving production costs.

Description

Technical Field

[0001] This utility model relates to the field of electromechanical engineering, and in particular to an integrated safety chain module and a wind turbine generator. Background Technology

[0002] With the rapid development of industrial automation technology, the safety, efficiency and reliability of equipment operation have become core indicators for measuring the level of industrial production. Especially in key areas such as high-precision manufacturing and heavy machinery operation, the performance requirements for safety protection systems are becoming increasingly stringent.

[0003] Safety chain modules, widely used in traditional industrial automation systems, are limited by early technological architectures and generally suffer from low signal transmission accuracy and long fault response delays. They typically employ simple logic control structures built with discrete components, which not only struggle to accurately monitor the real-time operating status of multi-node devices but also easily lead to false or missed triggers when facing complex operating conditions (such as instantaneous equipment overload or poor wiring connections). This fails to meet the high production efficiency requirements of modern industry and poses potential safety hazards to on-site operators and equipment assets.

[0004] As industrial automation equipment ages, a large number of outdated safety chain modules are gradually entering their replacement cycle. On the one hand, the core components of these outdated modules (such as relays and sensors) suffer from performance degradation and increased failure rates, leading to more frequent system downtime for maintenance and severely impacting production continuity. On the other hand, traditional modules lack standardized communication interfaces and data feedback functions, making it impossible to achieve deep integration with modern industrial control systems (such as PLCs and SCADA systems), and thus failing to meet the demands for equipment status visualization and intelligent fault early warning in the context of the Industrial Internet. Utility Model Content

[0005] Based on the above problems, this utility model proposes an integrated safety chain module and a wind turbine. The integrated safety chain module provided by this utility model solves the technical problems of poor reliability and response speed, poor adaptability to working conditions, and reliance on external programming for logic operation of the existing chip-type safety chain module. The integrated safety chain module provided by this utility model can provide more convenient distributed deployment, adapt to harsh working conditions, and does not rely on external CPUs for programming, thus saving production costs.

[0006] This utility model proposes an integrated security chain module, comprising:

[0007] The digital input module, central processing unit, and digital output module are connected in sequence.

[0008] The digital input module connects to the external wind turbine equipment side, receives the digital input signals from it, and transmits them to the central processing unit. After processing the digital input signals, the central processing unit transmits the decision signals to the digital output module. The digital output module connects to the external wind turbine equipment side and outputs the decision signals to it.

[0009] In addition, the modules included on the wind turbine equipment side include at least: an emergency stop button module, a generator overspeed protection module, a torsion cable switch monitoring module, a pitch system safety chain module, and a vibration and main shaft overspeed module.

[0010] In addition, it includes a display screen connected to the central processing unit, which displays the status of the modules on the wind turbine equipment side, represented by different digital input signals.

[0011] Furthermore, the display screen is an interactive display screen.

[0012] In addition, it also includes a local emergency operation button connected to the central processing unit.

[0013] In addition, it includes a self-monitoring module connected to the central processing unit, which has an integrated alarm function.

[0014] In addition, it includes a remote control module connected to the central processing unit.

[0015] In addition, the digital output module outputs decision signals to the emergency shutdown module on the external wind turbine equipment side.

[0016] This utility model also proposes a wind turbine generator, including the integrated safety chain module as described in any of the preceding claims.

[0017] The integrated safety chain module is located in the nacelle of the wind turbine, and is connected to the signal receiving devices at the base of the wind turbine tower and the nacelle.

[0018] In addition, the signal receiving device includes a tower base controller at the base of the tower and a remote input / output module in the cabin.

[0019] The integrated security chain module provided by this utility model solves the technical problems of poor reliability and response speed, poor adaptability to working conditions, and reliance on external programming for logic operation in the existing chip-type security chain module. The integrated security chain module provided by this utility model can provide more convenient distributed deployment, adapt to harsh working conditions, and does not rely on external CPUs for programming, thus saving production costs. Attached Figure Description

[0020] Figure 1 A structural diagram of an integrated safety chain module provided in one embodiment of this utility model;

[0021] Figure 2 A schematic diagram illustrating the integrated security chain module and external signal transmission according to one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of an integrated safety chain module in a wind turbine system, as provided in one embodiment of the present invention. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. This description is intended only to illustrate the specific embodiments of the present invention and does not constitute any limitation on the present invention. The scope of protection of the present invention is defined by the claims.

[0024] Reference Figure 1 This utility model proposes an integrated security chain module, comprising:

[0025] The digital input module, central processing unit, and digital output module are connected in sequence.

[0026] The digital input module connects to the external wind turbine equipment side, receives the digital input signals from it, and transmits them to the central processing unit. After processing the digital input signals, the central processing unit transmits the decision signals to the digital output module. The digital output module connects to the external wind turbine equipment side and outputs the decision signals to it.

[0027] The digital input module connects to the external wind turbine equipment side and receives its input digital input signals, DI signals. DI signals, short for Digital Input Signal, are optional signals including: emergency stop button signals, generator overspeed protection signals, cable twist switch monitoring signals, pitch system safety chain signals, and vibration and main shaft overspeed signals. The digital input module receives these signals in real time. By default, all signals are "high level," corresponding to a "closed" physical circuit, indicating a normal safety chain. If any signal goes "low level" (corresponding to equipment failure or circuit breakage), the central processing unit immediately determines that the "safety chain is triggered." The decision signal, i.e., the "trigger command," is transmitted to the digital output unit, which sends a signal to the emergency stop module on the external wind turbine equipment side, directly initiating the wind turbine's emergency stop process. This entire process does not rely on an external CPU (external central processing unit), avoiding the risk of protection failure due to CPU malfunction.

[0028] Compared to the chip-type safety chain modules in the prior art, the integrated safety chain module provided by this utility model has the following advantages:

[0029] 1. Distributed deployment is more convenient, does not rely on externally provided CPUs, and is based entirely on the on / off judgment of physical circuits. It has a fast response speed and high reliability, avoiding protection failure due to CPU failure; chip-type security chain modules are highly dependent on CPUs and are at risk of protection failure due to CPU failure.

[0030] 2. It can adapt to harsh working conditions; while the chip-type safety chain module can only be used for conventional industrial protection.

[0031] 3. It has fixed logic and does not rely on an externally provided CPU for programming; chip-type security chain modules rely on CPU programming.

[0032] The integrated security chain module provided by this utility model solves the technical problems of poor reliability and response speed, poor adaptability to working conditions, and reliance on external programming for logic operation in the existing chip-type security chain module. The integrated security chain module provided by this utility model can provide more convenient distributed deployment, adapt to harsh working conditions, and does not rely on external CPUs for programming, thus saving production costs.

[0033] In one embodiment, the modules included on the wind turbine equipment side include at least: an emergency stop button module, a generator overspeed protection module, a torsion cable switch monitoring module, a pitch system safety chain module, and a vibration and main shaft overspeed module.

[0034] When the digital input signals sent to the digital input module by the emergency stop button module, generator overspeed protection module, cable twist switch monitoring module, pitch system safety chain module, and vibration and main shaft overspeed module are "low level" (corresponding to equipment failure and circuit breakage), the central processing unit immediately determines that the "safety chain is triggered" to avoid damage to the wind turbine equipment.

[0035] In one embodiment, a display screen connected to the central processing unit is also included, which displays the status of modules on the wind turbine equipment side, represented by different digital input signals.

[0036] The display screen will show the status information of the modules on the wind turbine equipment side, represented by different digital input signals, in sections. Optionally, through color coding, maintenance personnel can easily identify which module is in a normal, warning, or fault state.

[0037] By setting up a display screen, maintenance personnel can have a clear view of the status of each module.

[0038] In one embodiment, the display screen is an interactive display screen.

[0039] In addition to displaying status information, the interactive display screen also provides an interactive user interface. Maintenance personnel can set parameters using buttons.

[0040] In one embodiment, a local emergency operation button connected to the central processing unit is also included.

[0041] When a module is shut down due to extreme circumstances (such as misjudgment caused by signal interference), maintenance personnel can temporarily unlock the safety chain through the local emergency operation button. Optionally, permission to operate the local emergency operation button can be obtained through authentication methods such as password or fingerprint, so as to restore the unit operation first and then troubleshoot the fault, avoiding long-term shutdown due to misjudgment (especially applicable to continuous production scenarios such as wind power and thermal power).

[0042] In one embodiment, a self-monitoring module connected to the central processing unit is also included, and the self-monitoring module integrates an alarm function.

[0043] If the module experiences problems such as "circuit breakage, component failure, or communication interruption", the alarm function will be triggered immediately, so that external personnel can be notified in a timely manner.

[0044] In one embodiment, a remote control module connected to the central processing unit is also included.

[0045] The remote control module communicates with external remote operation and monitoring platforms. It supports 4G / 5G / Ethernet communication, allowing maintenance personnel to control the system without being physically present on-site.

[0046] Optionally, an electromagnetic shielding layer is added inside the integrated safety chain module, and shielded cables are used for input and output signals to avoid misjudgments caused by electromagnetic signal interference.

[0047] In one embodiment, the digital output module outputs a decision signal to the emergency shutdown module on the external wind turbine equipment side.

[0048] The decision signal is output to the emergency shutdown module on the external wind turbine equipment side to protect the safety of the equipment.

[0049] like Figure 2 , 3 As shown, this utility model also proposes a wind turbine generator, including the integrated safety chain module as described in any of the preceding claims.

[0050] The integrated safety chain module is located in the nacelle of the wind turbine, and is connected to the signal receiving devices at the base of the wind turbine tower and the nacelle.

[0051] The integrated safety chain module is installed in the nacelle and transmits signals with the tower base and the nacelle to realize the safety signal monitoring of the entire unit. When the safety chain signal is triggered, it will also be transmitted to the remote monitoring equipment.

[0052] The integrated security chain module provided by this utility model solves the technical problems of poor reliability and response speed, poor adaptability to working conditions, and reliance on external programming for logic operation in the existing chip-type security chain module. The integrated security chain module provided by this utility model can provide more convenient distributed deployment, adapt to harsh working conditions, and does not rely on external CPUs for programming, thus saving production costs.

[0053] Figure 3 The security chain system in the text refers to the system where the security chain module is located.

[0054] Figure 2 In this context, NACELLE refers to the nacelle, TOWER BASE to the tower base, remote I / O to the remote interface, optical communication to optical communication, and the Wind Turbine Controller to the wind turbine controller, which is the "brain" of the wind turbine, responsible for real-time monitoring and control of the unit's operating status to achieve safe and efficient power generation and protect the equipment. "To SCADA" refers to the transmission of data and signals to the Monitoring and Data Acquisition System (SCADA).

[0055] In one embodiment, the signal receiving device includes a tower base controller in the tower base section and a remote input / output module in the cabin section.

[0056] Through comprehensive signal transmission, maintenance personnel and platform personnel can obtain the operating status of wind turbines in a timely manner.

[0057] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0058] The above description is merely the principle and preferred embodiment of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principle of this utility model, and these modifications should also be considered within the protection scope of this utility model.

Claims

1. An integrated security chain module, characterized in that, include: The digital input module, central processing unit, and digital output module are connected in sequence. The digital input module connects to the external wind turbine equipment side, receives the digital input signals input from it and transmits them to the central processing unit. After processing the digital input signals, the central processing unit transmits the decision signals to the digital output module. The digital output module connects to the external wind turbine equipment side and outputs the decision signals to it. The digital output module outputs the decision signal to the emergency shutdown module on the external wind turbine equipment side.

2. The integrated security chain module according to claim 1, characterized in that, The modules included on the wind turbine equipment side include at least: an emergency stop button module, a generator overspeed protection module, a torsion cable switch monitoring module, a pitch system safety chain module, and a vibration and main shaft overspeed module.

3. The integrated security chain module according to claim 1, characterized in that, It also includes a display screen, which is connected to the central processing unit and displays the status of the modules on the wind turbine equipment side, represented by different digital input signals.

4. The integrated security chain module according to claim 3, characterized in that, The display screen is an interactive display screen.

5. The integrated security chain module according to claim 1, characterized in that, Also includes: Local emergency operation button connected to the central processing unit.

6. The integrated security chain module according to claim 1, characterized in that, It also includes a self-monitoring module connected to the central processing unit, which has an integrated alarm function.

7. The integrated security chain module according to claim 1, characterized in that, It also includes a remote control module connected to the central processing unit.

8. A wind turbine generator, comprising an integrated safety chain module as described in any one of claims 1-7, characterized in that, The integrated safety chain module is located in the nacelle of the wind turbine, and is connected to the signal receiving devices at the base of the wind turbine tower and the nacelle.

9. The wind turbine generator set according to claim 8, characterized in that, The signal receiving device includes a tower base controller at the base of the tower and a remote input / output module in the cabin.

Images