Safety protection system and wind generating set test platform

Abstract

The utility model relates to a safety protection system and a wind generating set test platform, and the safety protection system comprises a data collection device which is disposed on the wind generating set test platform and is used for collecting the operation parameters of the wind generating set test platform; the communication module is respectively in communication connection with the plurality of subsystems and the controller; the controller is in communication connection with the data acquisition equipment and the communication module and is used for acquiring the operation parameters and the operation state identifiers of the subsystems and comparing the relative size relation between the operation parameters and a preset threshold value and the operation state identifiers; and the safety chain comprises an emergency stop controller and a plurality of safety link points, the emergency stop controller comprises an emergency stop contact, the plurality of safety link points are respectively arranged on the plurality of subsystems and the tested piece of the wind generating set test platform, and the emergency stop contact and the plurality of safety link points are sequentially connected in series. The safety protection system provided by the embodiment of the utility model can improve the reliability and expand the application range.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation, and in particular to a safety protection system and a wind power generator set test platform. Background Art

[0002] With the development of wind power generation technology, the unit capacity of existing wind turbines has been increasing, and the size of the components has also been gradually increasing. When testing the components in the unit, more and more subsystem equipment is required on the wind turbine test platform, which further increases the complexity of the test system. On this basis, the safety protection of the wind turbine test platform is also relatively complex. The safety protection system of the existing wind turbine test platform is usually set up for each subsystem, which cannot be taken into account, and cannot provide adaptive protection functions when using different subsystems for testing, and its overall reliability is low.

[0003] Therefore, there is an urgent need for a safety protection system with high reliability and wide application range and a corresponding wind turbine generator test platform. Utility Model Content

[0004] The embodiments of the present application provide a safety protection system and a wind turbine generator set test platform, wherein the safety protection system can improve reliability and expand the scope of application.

[0005] In the first aspect, according to an embodiment of the present application, a safety protection system is proposed, which is applied to a wind turbine test platform. The wind turbine test platform includes multiple subsystems, including: a data acquisition device, which is arranged on the wind turbine test platform and is used to collect operating parameters of the wind turbine test platform; a communication module, which is respectively communicated with the multiple subsystems and the controller; a controller, which is respectively communicated with the data acquisition device and the communication module, and is used to obtain operating parameters and operating status identifications of the subsystems, compare the relative size relationship between the operating parameters and preset thresholds and the operating status identification, so as to determine whether the wind turbine test platform is safe; and a safety chain, the safety chain includes an emergency stop controller and multiple safety link points, the emergency stop controller includes emergency stop contacts, and the multiple safety link points are respectively arranged on multiple subsystems and test pieces of the wind turbine test platform, and the emergency stop contacts and the multiple safety link points are connected in series in sequence.

[0006] According to one aspect of an embodiment of the present application, the emergency stop controller also includes multiple emergency stop switches, and multiple emergency stop contacts are arranged in one-to-one correspondence with the emergency stop switches and are connected in series with the safety link points in sequence; or, multiple emergency stop switches are connected in series in sequence and constitute an emergency stop circuit, which is connected to the emergency stop contacts and controls the on and off of the emergency stop contacts.

[0007] According to one aspect of an embodiment of the present application, the safety chain also includes multiple safety switches, which are respectively arranged in multiple subsystems and connected to safety link points. The safety switches include at least one of a vibration switch, a twist cable switch, and a relay.

[0008] According to one aspect of an embodiment of the present application, the safety switch includes a plurality of relays, and the plurality of relays include at least one of a safety relay, an overspeed protection relay, a vibration protection relay, an air gap protection relay, and an overcurrent and overvoltage protection relay.

[0009] According to one aspect of an embodiment of the present application, the safety link point is set in a one-to-one correspondence with the subsystem, the subsystem is provided with a safety switch, and the safety switch is connected to the safety link point; or, the safety link point is set in a one-to-one correspondence with the subsystem, the subsystem is provided with multiple safety switches, the multiple safety switches are connected in series in sequence to form a safety loop, the safety loop is connected to the safety link point and controls the on and off of the safety link point.

[0010] According to one aspect of an embodiment of the present application, at least one safety connection point is connected in series to a test piece of a wind turbine generator test platform.

[0011] According to one aspect of an embodiment of the present application, the data acquisition device includes at least one of a current sensor, a vibration sensor, a temperature sensor, a tilt sensor, a smoke detector, an image collector, and a switch signal collector.

[0012] According to one aspect of an embodiment of the present application, the security protection system also includes an alarm module, which is communicatively connected to the controller. The controller can output a trigger signal to the alarm module in an unsafe situation, and the alarm module is used to output an alarm signal according to the trigger signal; the alarm module includes at least one of a light-emitting device and a sound-emitting device.

[0013] In the second aspect, according to an embodiment of the present application, a wind turbine generator test platform is proposed, including: a towing subsystem, which can be connected to and drive the test piece; a measurement and control subsystem, which is used to collect parameters of the test piece; and a safety protection system in any embodiment of the first aspect, in which some safety link points are set in the towing subsystem.

[0014] According to one aspect of an embodiment of the present application, the wind turbine generator test platform also includes a lubrication subsystem, a cooling subsystem, and a distribution subsystem. The lubrication subsystem is connected to the drag subsystem and the test piece, the cooling subsystem is connected to the safety protection system, and the distribution subsystem is respectively connected to the drag subsystem, the test piece, the measurement and control subsystem, and the safety protection system; data acquisition equipment is respectively provided in the measurement and control subsystem, the lubrication subsystem, the cooling subsystem, and the distribution subsystem.

[0015] The safety protection system provided in the embodiment of the present application includes a data acquisition device, a communication module, a controller and a safety chain, wherein the data acquisition device includes a variety of sensors that can collect parameters of the wind turbine test platform, and the communication module is used to realize the communication connection between each subsystem of the wind turbine test platform and the controller, and the controller can judge whether the wind turbine test platform is safe based on the aforementioned parameters. At the same time, a safety chain is provided in the safety protection system. By setting the safety link points in each subsystem and the test piece respectively, the system can be quickly stopped when any of them has a safety problem, so that the safety protection system has good reliability. And the safety link points can be adapted to different subsystems to improve the applicability of the safety protection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0017] Figure 1 is a module diagram of a security protection system provided by an embodiment of the present application;

[0018] Figure 2 It is a module diagram of a safety chain provided by an embodiment of the present application;

[0019] Figure 3 It is a structural schematic diagram of a wind turbine generator set test platform provided by an embodiment of the present application.

[0020] in:

[0021] 100-Safety protection system; 200-Wind turbine test platform;

[0022] 10-data acquisition equipment; 20-communication module; 30-controller; 40-safety chain; 50-drag subsystem; 60-measurement and control subsystem; 70-lubrication subsystem; 80-cooling subsystem; 90-distribution subsystem;

[0023] 41- Emergency stop controller; 42- Safety connection point. DETAILED DESCRIPTION

[0024] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0025] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structures in the molding mold and molding method of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the meaning of "multiple" is more than two, and the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0026] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] With the development of wind power generation technology, various equipment in wind turbines are constantly updated, and equipment with new structures or new technologies usually needs to be tested multiple times before being put into actual use. When testing equipment, it is usually necessary to use a wind turbine test platform, drive the equipment under test to operate through the towing equipment on the wind turbine test platform, and collect the working parameters of the equipment under test, so as to further make a more accurate judgment on the performance of the equipment under test.

[0028] On this basis, the applicant found that in order to ensure the stability and safety of the test process, the wind turbine test platform usually needs to be equipped with a safety protection system, but the existing wind turbine test platform usually includes multiple subsystems, and the protection function of each subsystem is relatively independent. If the protection function of any subsystem fails, serious safety problems may occur. In addition, with the difference in the type of equipment under test, the required parameters, the driving mode and other conditions, the types of subsystems that need to be invested and used in the wind turbine test platform are also different. Each use requires the design of different protection logics based on the specific conditions of the subsystem, which is costly and inefficient.

[0029] In order to solve the above problems, an embodiment of the present application proposes a security protection system, in which a security chain with multiple security link points is set up to simultaneously monitor the security of each subsystem, which can adapt to different subsystems and has high reliability and a large scope of application.

[0030] It can be understood that the following embodiments of the present application only illustrate the application of the safety protection system and the wind turbine test platform to the testing of equipment in the wind turbine, but the safety protection system and the wind turbine test platform provided in the embodiments of the present application are not limited to the following embodiments, but can also be used in other occasions where the equipment needs to be tested and has higher safety requirements, and to protect it.

[0031] In order to better understand this application, Figures 1 to 3 The safety protection system and wind turbine generator set test platform provided by this application are described in detail.

[0032] Please also read Figure 1 and Figure 2 , Figure 1 is a module diagram of a security protection system provided by an embodiment of the present application, Figure 2 It is a module diagram of a safety chain provided by an embodiment of the present application.

[0033] In the first aspect, according to an embodiment of the present application, a safety protection system 100 is proposed, which is applied to a wind turbine test platform 200. The wind turbine test platform 200 includes multiple subsystems, and the safety protection system 100 includes a data acquisition device 10, a communication module 20, a controller 30 and a safety chain 40, wherein the data acquisition device 10 is arranged on the wind turbine test platform 200, and is used to collect operating parameters of the wind turbine test platform 200; the communication module 20 is respectively communicated with the multiple subsystems and the controller 30; the controller 30 is respectively communicated with the data acquisition device 10 and the communication module 20, and is used to obtain operating parameters and operating status identifiers of the subsystems, compare the relative size relationship between the operating parameters and the preset threshold value and the operating status identifier, so as to determine whether the wind turbine test platform 200 is safe; the safety chain 40 includes an emergency stop controller 41 and multiple safety link points 42, the emergency stop controller 41 includes an emergency stop contact, and the multiple safety link points 42 are respectively arranged on multiple subsystems and the test piece of the wind turbine test platform 200, and the emergency stop contact and the multiple safety link points 42 are connected in series in sequence.

[0034] The present application discloses a safety protection system 100 applied to a wind turbine test platform 200, which includes a data acquisition device 10 for collecting parameters of the wind turbine test platform 200, a communication module 20 for realizing communication between various modules, a controller 30 for comparing parameters, and a safety chain 40 for detecting the safety status of the wind turbine test platform 200.

[0035] Specifically, the data acquisition device 10 includes a variety of sensors, such as current sensors, vibration sensors, temperature sensors, and tilt sensors, etc., which are used to collect operating parameters of the wind turbine test platform 200. Optionally, they can also be used to collect parameters of the test piece. The multiple sensors in the data acquisition device 10 can be set on the wind turbine test platform 200 according to their types, or other locations that are spaced from the wind turbine test platform 200 and can achieve the required data collection.

[0036] The communication module 20 can be used to realize the communication between each subsystem of the wind turbine test platform 200 and the controller 30, and to transmit data signals such as the operating status identification of the subsystem to the controller 30. The communication protocol adopted can be at least one of EtherCat, CANopen, Profibus, Modbus, TCP / IP, RS485 and the like.

[0037] The controller 30 is connected to the communication module 20 and the data acquisition device 10 for communication, and is capable of receiving the operating parameters acquired by the data acquisition device 10 and the operating status identifiers of the various subsystems in the wind turbine test platform 200 transmitted by the communication module 20, and then processing the aforementioned two data. Specifically, for the operating parameters of the wind turbine test platform 200, the corresponding threshold value can be pre-stored in the controller 30, and the operating parameters of the wind turbine test platform can be compared with the threshold value to determine the relative size relationship between the two, or to determine whether the operating parameters are within the preset threshold range. Optionally, the controller 30 can achieve parameter comparison through a comparator or other logic circuit structure.

[0038] Optionally, for the operation status identifier, the controller 30 and each subsystem in the wind turbine generator test platform 200 can establish a heartbeat detection mechanism through the communication module 20, that is, the subsystem can send a heartbeat signal to the controller 30 at a preset time interval to determine the connection status between the two. If the heartbeat signal is not received for more than the preset time length, it can be determined that the connection between the two is invalid. On this basis, the operation status identifier that can characterize the operation status of the subsystem can be used as a heartbeat signal. The operation status identifier can be selected to simply characterize the normal / abnormal operation of the corresponding subsystem, so that the connection status and the operation status of the subsystem can be monitored simultaneously through the signal, thereby improving the reliability of the safety protection system 100.

[0039] The safety chain 40 is used to control the rapid shutdown of the wind turbine test platform 200 when a fault occurs in the wind turbine test platform 200 or the test piece. Specifically, the safety chain 40 includes an emergency stop controller 41 and a plurality of safety link points 42. The emergency stop controller 41 has one or more emergency stop contacts. The emergency stop controller 41 can realize the emergency stop of the wind turbine test platform 200 by cutting off any one of the contacts. The plurality of safety link points 42 are respectively arranged in each subsystem and the test piece of the wind turbine test platform 200, and are associated with the safety status of the subsystem and the test piece. When a safety hazard occurs in the subsystem or the test piece, such as overspeed operation, abnormal vibration, overcurrent and overvoltage, the safety link point 42 will be triggered to cause it to be disconnected.

[0040] On this basis, each safety link point 42 is connected in series with the emergency stop contact point, and a circuit break at any one of them will cause the wind turbine test platform 200 to stop urgently, thereby timely avoiding more serious safety problems. The emergency stop controller 41 can be triggered manually or automatically, and the safety link point 42 can be triggered automatically according to the device status, thereby combining the two, and when a safety problem occurs in the subsystem or the test piece or when the operator discovers a problem through observation, the wind turbine test platform 200 can be stopped urgently in time, effectively improving the reliability of the safety protection system 100.

[0041] Optionally, the safety chain 40 can be configured so that after the shutdown is triggered, a reset switch must be manually operated to restore the safety chain 40 to its pre-trigger state, thereby enabling the wind turbine test platform 200 and the test piece to be started again, thereby further improving the reliability of the safety protection system 100.

[0042] In some optional embodiments, the emergency stop controller 41 also includes multiple emergency stop switches, multiple emergency stop contacts are arranged one-to-one corresponding to the emergency stop switches and are connected in series with the safety link point 42 in sequence; or, multiple emergency stop switches are connected in series in sequence and form an emergency stop circuit, which is connected to the emergency stop contacts and controls the on and off of the emergency stop contacts.

[0043] Optionally, the emergency stop controller 41 may include multiple emergency stop switches that can be manually operated by the test staff to control the emergency stop contacts. The multiple emergency stop switches can be set at different positions so that the staff can use them nearby when an emergency stop is needed, thereby reducing the time required and further improving the reliability of the safety protection system 100.

[0044] Optionally, multiple emergency stop contacts can be set in the emergency stop controller 41 corresponding to these emergency stop switches, and the emergency stop switches can control multiple emergency stop contacts one by one. At this time, multiple emergency stop contacts and multiple safety link points 42 are connected in series in sequence, and each emergency stop switch can cut off the corresponding emergency stop contact, thereby triggering the safety chain 40 as a whole. Alternatively, multiple emergency stop switches can be connected in series in sequence to form an emergency stop loop, and then the on and off of the emergency stop contacts are controlled by the loop. At this time, the number of emergency stop switches is greater than the number of emergency stop contacts, and the number of emergency stop contacts can be designed according to the setting position and connection conditions.

[0045] In some optional embodiments, the safety chain 40 also includes multiple safety switches, which are respectively arranged in multiple subsystems and connected to the safety link point 42. The safety switch includes at least one of a vibration switch, a twist cable switch, and a relay.

[0046] Similar to the emergency stop switch, the safety chain 40 may also include a plurality of safety switches, which are respectively arranged in each subsystem and may optionally be arranged in the test piece. According to the characteristics of the subsystem and the test piece during the test, the safety switch may be selected to include one of a vibration switch, a twist cable switch and a relay, etc., and its on and off may be controlled by the state of the subsystem or the test piece in which the safety switch is installed. Optionally, these safety switches may adopt different structural forms according to the types of subsystems to achieve corresponding safety monitoring.

[0047] In some optional embodiments, the safety switch includes a plurality of relays, and the plurality of relays include at least one of a safety relay, an overspeed protection relay, a vibration protection relay, an air gap protection relay, and an overcurrent and overvoltage protection relay.

[0048] As mentioned above, the safety switch can use relays as contacts, and control the disconnection of the safety link point 42 through a variety of protection relays. The type of relay can correspond to the protection type required by the subsystem in which the relay is set.

[0049] Exemplarily, the subsystem of the wind turbine test platform 200 may include a traction motor for driving the test piece to operate. The hardware protection system of the traction motor may include at least one of overspeed protection, vibration protection, air gap protection, and overcurrent and overvoltage protection. Multiple relays corresponding to these protection types, that is, multiple safety switches, are connected in series in sequence to form a safety protection circuit corresponding to the traction motor. When any of the protections is activated, the corresponding protection relay is triggered, and the corresponding safety link point 42 is further controlled to be disconnected to achieve an emergency stop.

[0050] For example, the test piece may also be provided with a corresponding safety relay, and when a failure or potential safety hazard occurs in the test piece, the corresponding safety link point 42 can be disconnected by the safety relay.

[0051] In some optional embodiments, the safety link point 42 is set in a one-to-one correspondence with the subsystem, the subsystem is provided with a safety switch, and the safety switch is connected to the safety link point 42; or, the safety link point 42 is set in a one-to-one correspondence with the subsystem, the subsystem is provided with multiple safety switches, the multiple safety switches are connected in series in sequence to form a safety loop, the safety loop is connected to the safety link point 42 and controls the on and off of the safety link point 42.

[0052] Similar to the setting method of the emergency stop switch, the safety switch can be set in a one-to-one correspondence with the subsystem, or the same subsystem can be set with multiple safety switches, and the specific number can be selected according to the number of safety monitoring items required by the subsystem. Taking the traction motor as an example, the subsystem to which the structure belongs can be simultaneously provided with multiple safety switches corresponding to the aforementioned multiple protection types. These safety switches are connected in series to form a safety loop, and the on-off of the loop controls the on-off of the corresponding safety link point 42, simplifying the loop of the main part of the safety chain 40, thereby further improving the reliability of the safety protection system 100.

[0053] In some optional embodiments, at least one safety connection point 42 is connected in series to a test object of the wind turbine generator test platform 200 .

[0054] Optionally, the safety link point 42 in the safety chain 40 can be connected in series to the test object, that is, when the test object itself is provided with its own safety chain, at least one of the safety link points 42 in the safety protection system 100 can be connected to the safety chain of the test object, so that the disconnection of the safety link point 42 can cause the safety chain 40 of the wind turbine test platform 200 and the safety chain of the test object to trigger an emergency stop at the same time, that is, while the driving components in the wind turbine test platform 200 are shut down, the test object is also stopped synchronously, thereby achieving safety chain interlocking between the wind turbine test platform 200 and the test object, further improving the reliability of the safety protection system 100.

[0055] In some optional embodiments, the data acquisition device 10 includes at least one of a current sensor, a vibration sensor, a temperature sensor, a tilt sensor, a smoke detector, an image collector, and a switch signal collector.

[0056] The safety protection system 100 includes a data acquisition device 10 for collecting operating parameters of the wind turbine test platform 200. The data acquisition device 10 may include at least one of sensors such as a current sensor, a vibration sensor, a temperature sensor, an inclination sensor, a smoke detector, an image collector, and a switch signal collector.

[0057] Taking the test piece as a generator and related equipment as an example, the data acquisition device 10 can be used to collect parameters such as the temperature of the towing generator, the bearing temperature, the vibration parameters of the test bench, the vibration parameters of the test piece, the tilt angle of the test piece, the personnel situation in the test area, the status of the smoke alarm in the test area, and the start-up status of related auxiliary equipment such as water pumps, oil pumps, cooling fans or water cooling equipment.

[0058] When the data collected by the aforementioned sensors all meet the preset standards, it can be determined that the wind turbine test platform 200 is in a safe state and can operate normally. For example, before the wind turbine test platform 200 starts the test, the safety protection system 100 can be started first, and the parameters collected by the aforementioned sensors can be used to determine whether the wind turbine test platform 200 is in a safe state and whether the test area environment can be tested. The test can only be started after both are determined to be passed.

[0059] In some optional embodiments, the security protection system 100 also includes an alarm module, which is communicatively connected to the controller 30. The controller 30 can output a trigger signal to the alarm module in an unsafe situation, and the alarm module is used to output an alarm signal according to the trigger signal; the alarm module includes at least one of a light-emitting device and a sound-emitting device.

[0060] In order to enable operators to obtain safety status information of the wind turbine test platform 200 in a timely manner, the safety protection system 100 may also include an alarm module, which is used to issue an alarm signal in a timely manner when the controller 30 determines that there is a safety problem based on the operating parameters of the wind turbine test platform 200.

[0061] Specifically, after receiving the parameter information collected by the data acquisition device 10, the controller 30 can compare it with the preset threshold to determine whether the wind turbine test platform 200 is safe. When the controller 30 determines that there is a safety problem, it can send a trigger signal to the alarm module to enable the alarm module to work and send an alarm signal, so that the operator can promptly know that a safety problem has occurred and the specific parameters of the safety problem through the alarm signal.

[0062] Optionally, the alarm module may include at least one of a light emitting device and a sound emitting device. Exemplarily, the alarm module may include an indicator light and a speaker to make the alarm signal eye-catching.

[0063] See also Figure 3 , Figure 3 It is a structural schematic diagram of a wind turbine generator test platform provided by an embodiment of the present application. In the second aspect, according to the embodiment of the present application, a wind turbine generator test platform 200 is proposed, including a towing subsystem 50, a measurement and control subsystem 60, and a safety protection system 100 in any embodiment of the first aspect, the towing subsystem 50 can be connected to the test piece and drive the test piece; the measurement and control subsystem 60 is used to collect parameters of the test piece; and some safety link points 42 in the safety chain 40 are set in the towing subsystem 50.

[0064] The present application also provides a wind turbine generator test platform 200, which includes a traction subsystem 50 for driving the test piece to operate, a measurement and control subsystem 60 for collecting operating parameters of the test piece, and a safety protection system 100.

[0065] Optionally, taking the generator and its related structures in the wind turbine generator set as an example, the driving subsystem 50 may include a driving converter, a driving motor, and a driving gearbox, etc., and indirectly drives the tested generator to operate through the transmission between the driving gearbox and the tested gearbox. The measurement and control subsystem 60 is used to collect the working parameters of the tested device to obtain the corresponding test results, and the specific sensor types provided therein can be designed according to the types of parameters required for the test.

[0066] The safety protection system 100 is applied to the towing subsystem 50, and at least some of the equipment in the towing subsystem 50 is provided with a safety link point 42 to monitor the safety status of the equipment. Optionally, the wind turbine test platform 200 may also include other subsystems required for the test, and the safety link point 42 in the safety chain 40 may be correspondingly provided in the subsystem, and the present application does not make any specific limitation on this.

[0067] In some optional embodiments, the wind turbine generator test platform 200 also includes a lubrication subsystem 70, a cooling subsystem 80, and a distribution subsystem 90. The lubrication subsystem 70 is connected to the drag subsystem 50 and the test piece, the cooling subsystem 80 is connected to the safety protection system 100, and the distribution subsystem 90 is connected to the drag subsystem 50, the test piece, the measurement and control subsystem 60, and the safety protection system 100 respectively; data acquisition equipment 10 is respectively provided in the measurement and control subsystem 60, the lubrication subsystem 70, the cooling subsystem 80, and the distribution subsystem 90.

[0068] In addition to the aforementioned subsystems, the wind turbine test platform 200 may also be provided with a lubrication subsystem 70 for providing lubrication to the test piece during operation, a cooling subsystem 80 for cooling the heat-generating parts of the running test piece, and a power distribution subsystem 90 for providing electrical energy to each subsystem and the safety protection system 100.

[0069] Exemplarily, the lubrication subsystem 70 can be used to lubricate the dragging subsystem 50 and the locations where friction is generated in the moving pairs, rotating pairs, etc. in the test piece. The cooling subsystem 80 can dissipate heat for the test piece and the wind turbine generator test platform 200 through various forms such as liquid cooling and air cooling. The power distribution subsystem 90 is used to distribute power to various devices that require electric drive, such as motors, inverters, and measuring cabinets.

[0070] Optionally, each sensor in the data acquisition device 10 can respectively collect data from the measurement and control subsystem 60, the lubrication subsystem 70, the cooling subsystem 80 and the power distribution subsystem 90, that is, the controller 30 can judge the operating status of the aforementioned subsystems and make corresponding responses when any of them has safety problems or abnormal conditions, such as triggering an alarm signal or emergency stopping of the wind turbine test platform 200.

[0071] The wind turbine generator test platform 200 provided in the embodiment of the present application has all the beneficial effects of the safety protection system 100 provided in the embodiment of the present application. For details, please refer to the specific description of the safety protection system 100 in the above embodiments, which will not be repeated in this embodiment.

[0072] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A safety protection system, applied to a wind turbine generator test platform, the wind turbine generator test platform comprises a plurality of subsystems, characterized in that: include: A data acquisition device, arranged on the wind turbine generator set test platform, for collecting operating parameters of the wind turbine generator set test platform; A communication module, connected to the plurality of subsystems and the controller for communication; A controller, respectively connected to the data acquisition device and the communication module for communication, for obtaining the operating parameters and the operating status identifier of the subsystem, and comparing the relative magnitude relationship between the operating parameters and the preset threshold value and the operating status identifier to determine whether the wind turbine generator test platform is safe; as well as A safety chain, wherein the safety chain includes an emergency stop controller and multiple safety link points, the emergency stop controller includes emergency stop contacts, the multiple safety link points are respectively arranged on multiple subsystems and test pieces of the wind turbine generator test platform, and the emergency stop contacts and the multiple safety link points are connected in series in sequence.

2. The safety protection system according to claim 1, characterized in that: The emergency stop controller further comprises a plurality of emergency stop switches, wherein the plurality of emergency stop contacts are arranged in one-to-one correspondence with the emergency stop switches and are sequentially connected in series with the safety link points; Alternatively, a plurality of the emergency stop switches are connected in series in sequence to form an emergency stop circuit, and the emergency stop circuit is connected to the emergency stop contact and controls the on and off of the emergency stop contact.

3. The safety protection system according to claim 1, characterized in that: The safety chain also includes a plurality of safety switches, which are respectively arranged in the plurality of subsystems and connected to safety link points. The safety switch includes at least one of a vibration switch, a twist cable switch, and a relay.

4. The safety protection system according to claim 3, characterized in that: The safety switch includes a plurality of the relays, and the plurality of relays include at least one of a safety relay, an overspeed protection relay, a vibration protection relay, an air gap protection relay, and an overcurrent and overvoltage protection relay.

5. The safety protection system according to claim 3, characterized in that: The safety link points are arranged in one-to-one correspondence with the subsystems, the subsystems are provided with one safety switch, and the safety switch is connected to the safety link points; Alternatively, the safety link point is arranged in one-to-one correspondence with the subsystem, the subsystem is provided with a plurality of the safety switches, the plurality of safety switches are connected in series in sequence to form a safety loop, the safety loop is connected to the safety link point and controls the on and off of the safety link point.

6. The safety protection system according to claim 1, characterized in that: At least one of the safety connection points is connected in series to a test piece of the wind turbine generator set test platform.

7. The safety protection system according to any one of claims 1 to 6, characterized in that: The data acquisition device includes at least one of a current sensor, a vibration sensor, a temperature sensor, a tilt sensor, a smoke detector, an image collector, and a switch signal collector.

8. The safety protection system according to any one of claims 1 to 6, characterized in that: The safety protection system further comprises an alarm module, the alarm module is in communication connection with the controller, the controller can output a trigger signal to the alarm module in an unsafe situation, and the alarm module is used to output an alarm signal according to the trigger signal; The alarm module includes at least one of a light emitting device and a sound emitting device.

9. A wind turbine generator test platform, characterized in that: include: A drag subsystem, capable of connecting with the test object and driving the test object; A measurement and control subsystem, used for collecting parameters of the test piece; According to the safety protection system as described in any one of claims 1 to 8, some of the safety link points are set in the dragging subsystem.

10. The wind turbine generator test platform according to claim 9, characterized in that: The wind turbine generator test platform also includes a lubrication subsystem, a cooling subsystem, and a power distribution subsystem. The lubrication subsystem is connected to the drag subsystem and the test piece, the cooling subsystem is connected to the safety protection system, and the power distribution subsystem is connected to the drag subsystem, the test piece, the measurement and control subsystem, and the safety protection system respectively. The data acquisition devices are respectively arranged in the measurement and control subsystem, the lubrication subsystem, the cooling subsystem and the power distribution subsystem.

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