CN114489021A - Flexible testing platform and testing method for wind turbine generator control system - Google Patents
Flexible testing platform and testing method for wind turbine generator control system Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The invention is suitable for the technical field of testing of a wind turbine control system, and provides a flexible testing platform and a testing method for the wind turbine control system, wherein the flexible testing platform comprises a testing cabinet and is used for testing equipment to be tested. The embodiment of the invention can adapt to the equipment to be tested with different hardware models, and can be compatible with the hardware of various equipment to be tested by matching the same set of test cabinet with a plurality of adapter cabinets, thereby realizing the universality of the test platform.
Description
The application is a divisional application with the application number of 202011346381.0, the application date of 2020, 11 and 26, and the name of the invention is 'flexible test platform of wind turbine generator control system and working method thereof'.
Technical Field
The invention belongs to the technical field of testing of a wind turbine generator control system, and particularly relates to a flexible testing platform and a testing method for the wind turbine generator control system.
Background
A wind generating set (wind generating set for short) is equipment for converting clean, environment-friendly and renewable wind energy into electric energy.
The wind turbine mainly comprises a tower, a cabin and a wind wheel (the wind wheel comprises blades and a hub), wherein a cabin control cabinet (used for yaw control, safety monitoring, tower footing control cabinet communication and the like) is installed in the cabin, and a tower footing control cabinet (used for data acquisition, power parameter monitoring, cabin control cabinet communication and the like) is installed in a tower footing; the engine room control cabinet and the tower footing control cabinet are collectively called a wind turbine control cabinet, the quality of the wind turbine control cabinet directly determines the reliability of the operation of a wind turbine, and therefore the quality of the wind turbine control cabinet can be ensured only by testing before leaving a factory.
The existing testing mode is that a testing platform is directly connected with a product to be tested (such as a wind turbine generator control cabinet), cables and interfaces required by the product to be tested with different types and different loads are numerous, one testing platform is difficult to meet hardware access and testing of various products, and only a special testing platform can be selected for equipment to be tested (such as a product of 5MW V03) of the same system, so that the testing compatibility is poor, and diversified testing of the product cannot be met.
Meanwhile, due to the fact that the technology of the wind turbine generator is continuously updated and the demand of customers for products is changed, the models of products to be tested are frequently improved, the corresponding testing platform also needs to be replaced and adjusted, the debugging cost is increased due to continuous replacement and adjustment, wiring of a testing cable is affected to be crossed and disordered, and the testing efficiency and the wiring attractiveness are affected.
Therefore, a testing platform that can be adapted to different hardware interface types and testing types and accessed by devices to be tested is needed.
Disclosure of Invention
In view of this, the embodiment of the invention provides a flexible test platform and a test method for a control system of a wind turbine generator, which can adapt to devices to be tested with different hardware models, and can be compatible with hardware of various devices to be tested by using the same set of test cabinet in combination with a plurality of switch cabinets, so that the universality of the test platform is realized.
The first aspect of the embodiment of the invention provides a flexible test platform for a control system of a wind turbine generator, which comprises a test cabinet, wherein the test cabinet is used for testing equipment to be tested, the test cabinet is provided with a universal wiring module, the universal wiring module is used for being connected with a heavy-load wire interface of a special switching cabinet through a heavy-load cable, the special switching cabinet is provided with a special switching module corresponding to the equipment to be tested, and the special switching module is used for being connected with the equipment to be tested through the test cable.
Through the mode of increasing the switching cabinet between the test cabinet and the equipment to be tested, the special switching module of the switching cabinet is used for receiving the hardware interface models of different equipment to be tested, and then the switching cabinet is connected into the general wiring module of the test cabinet through a heavy-duty cable with a uniform interface, so that the test platform can be connected with the test platform through the same heavy-duty cable interface when facing various hardware interfaces, the arrangement of the test cabinet does not need to be changed, and only the switching cabinet needs to be changed, so that the test platform can be adapted to the equipment to be tested of different hardware models.
When the variety of the equipment to be tested is more, the equipment model which can be suitable for the same transfer cabinet can be set, so that the special transfer module in the transfer cabinet is determined to be selected and wired, the special transfer cabinet is regarded as a special transfer cabinet facing the equipment to be tested with a fixed model, when the special transfer cabinet is tested for the equipment to be tested with different models which are incompatible, the special transfer cabinet is selected to be connected into the test platform immediately, because the heavy-load line interfaces are consistent, the hardware and the cable of the test cabinet do not need to be changed, and the test software only needs to be correspondingly adjusted to be suitable for more equipment to be tested. The same test cabinet is matched with a plurality of switching cabinets for use, so that the hardware of various devices to be tested can be compatible, and the universality of the test platform is realized.
Moreover, the special switching module in the switching cabinet can be selected according to the model of the equipment to be tested, and the same switching cabinet can be adapted to the equipment to be tested with more models by replacing various special switching modules for connecting the equipment to be tested. Therefore, the universal purpose can be realized only by replacing the special switching module in the switching cabinet without replacing the whole switching cabinet.
In addition, the heavy-duty cable is through being switched over by special switching module again after subdividing in the switching cabinet, can be better the connection of overall arrangement test cable with walk the line condition, the heavy-duty cable is unified to be inserted and is switched over the cabinet, and the cable of same await measuring equipment is drawn forth by same or adjacent special switching module, and the cable trend is more regular, has avoided the cable of different equipment to mix, is difficult to clear the inconvenience that the cable belongs to.
In one embodiment, the dedicated switch cabinet comprises a cabinet body, wherein the cabinet body comprises two side walls and a back wall, and a heavy-load wire interface is arranged on at least one side wall and/or back wall and is used for connecting the heavy-load cable;
the cabinet body is fixed with the changeover mechanism, the changeover mechanism includes the mechanism body, the preceding terminal surface of mechanism body is equipped with a plurality of mounting grooves of bilateral symmetry and/or longitudinal symmetry distribution, the mounting groove internal fixation has the installation guide rail, is used for installing special switching module.
Set up the heavy load line interface on the outer wall of the cabinet body, in the inlet wire of cabinet body internal connection heavy load line interface to changeover mechanism, make the cabinet body make things convenient for cable plug and removal. The special switching module is mainly used for branching switching, so that the special switching module is arranged in the mounting groove on the front end face of the mechanism body to complete mounting, the two ends of the incoming line and the outgoing line of the special switching module can be embedded into the mounting groove of the mechanism body, and then regular lines are arranged in the mechanism body to realize wiring, so that the switching mechanism is still concise, clear and attractive after wiring is completed. The mounting groove can be internally fixed with a mounting guide rail for mounting the special switching module, the mounting guide rail can be installed as a clamping guide rail or can be fixedly mounted with a bolt, and the purpose is to facilitate the dismounting and replacement of the special switching module.
The quantity of mounting groove is corresponding with the quantity of special switching module, and the regularity of walking the line overall arrangement can be increased in the symmetric distribution, for example bilateral symmetry's mounting groove, then make left special switching module be used for the forceful electric power test group, and the special switching module on right side is used for the weak current test group to the attribution of each cable and the condition of walking the line of better distinguishing, similar, the mounting groove of longitudinal symmetry distribution also can correspond the subregion of setting for different test groups, with the connecting cable of dividing different test product or object.
In one embodiment, hollow wire channels are distributed on the mechanism body around the mounting groove, the wire channels are communicated with the outer wall of the mechanism body, wire outlets and wire inlets of the wire channels are correspondingly arranged on the outer wall of the mechanism body, and the wire channels are also communicated with the groove wall of the mounting groove through wire holes.
The main purpose of arranging the wire channels is to fix the wiring layout through regular wire channels, so that the wiring is more attractive. The common line can be a bright line or a dark line, but the hollow line designed in this embodiment is a dark line, the heavy-load line and the cable separated by the special switching module through switching are both wired in the mechanism body through the dark line, and then the heavy-load line interface is connected through the wiring inlet or the tested equipment is connected through the wiring outlet, especially the heavy-load line is introduced through the wiring inlet, the testing cable through switching is led out through the wiring outlet, so that the regular wiring layout is formed, and the structure is simple and attractive.
All set up the lane and can regularly lay the line in all directions that encircle the mounting groove, for example the heavy load line passes through from the left side lane, is connected with the special switching module in the mounting groove through the lane of top, and then the test cable that the switching was drawn forth passes through from the lane of below, draws forth the mechanism body through the right side lane and finally connects the equipment that awaits measuring, so walk the line, make things convenient for the clear line trend more when the line is checked.
In one embodiment, the special adapter module is a freely combined wiring terminal, and the number of the wiring terminals is selected according to the equipment to be tested.
The special switching module is mainly used for subdividing a heavy-load wire which is combined together into connecting cables which correspond to testing interfaces of all devices to be tested, so that the purpose of switching can be met by selecting the connecting terminals, the common connecting terminals comprise at least one group of interface groups, each group of interface groups comprises two interfaces which are distributed on two sides of the connecting terminals, one interface is set as a wire inlet interface, the other interface is set as a wire outlet interface, and the heavy-load wire and the testing cables are respectively connected. When the special switching module is used, the single wiring terminals are selected to be combined in parallel according to the number of the interfaces of the equipment to be tested, and the required special switching module can be obtained.
In one embodiment, the universal connection module or the dedicated switching module includes a phase sequence testing unit, and the phase sequence testing unit includes four testing terminal sets, each testing terminal set is used for respectively connecting one of the three UVW phases and the N phases of the device to be tested and a power supply terminal corresponding to the phase.
The phase sequence test needs to be carried out on three-phase power supply in a three-phase power supply system of equipment to be tested, the existing phase sequence test is realized by an external phase sequence meter, but the phase sequence meter is expensive, and can not be maintained independently after being damaged and needs to be sent back to a manufacturer for maintenance, so that the maintenance period is long, the cost is high, the phase sequence meter and a test platform are used independently, and the test result needs to be input manually.
Therefore, the phase sequence test is controlled and tested by the test platform through the design, and only the end group of the phase sequence test unit is correspondingly connected with the three-phase power supply end group, then the corresponding phases are sequentially controlled to be electrified to test whether the phase is really electrified or not, and meanwhile, the other two phases are not electrified, so that whether the phase is wrong or not can be judged. The phase sequence detection mode effectively reduces the test cost and is convenient to maintain. Similarly, the phase sequence test unit can be applied to both a general wiring module of the test cabinet and a special switching module of the switching cabinet.
In one embodiment, the universal wiring module or the special switching module comprises a power supply detection unit, the power supply detection unit comprises at least one relay, a coil of the relay is used for being connected into a voltage loop of a device to be tested in series, and a contact of the relay is used for being connected into a voltage testing end of the test cabinet;
wherein the rated working voltage of the relay is equal to the voltage of the voltage loop.
The power supply detection is used for testing whether the voltage of a power supply loop can meet the requirement of normal work of equipment, the existing power supply detection is used for actually testing the specific voltage value in the loop through a digital multimeter, so that whether the voltage value can be enough for supplying power to the equipment is judged, but the digital multimeter is an external hardware device, the cost is high, and safety is also noticed during use.
Through the design, the power supply condition of the voltage loop can be detected without using a digital multimeter, the hardware cost is reduced, the coil with the same rated working voltage is connected into the loop, as long as the coil can be normally connected, the voltage is enough to work by electric equipment, and the actual voltage value does not need to be detected specifically. When the coil is switched on, the contact is closed, the voltage testing end is electrified or becomes a high level, the testing platform can recognize that the voltage is enough, otherwise, the contact is always off, and the voltage testing end is a low level. The cost of the relay is far lower than that of a digital multimeter, and the test software directly obtains a test result and records and displays the test result without manual operation.
In one embodiment, the universal connection module or the dedicated switching module includes a current detection unit, and the current detection unit is used for sequentially connecting a current supply end of the test cabinet, a current channel of the device to be tested, and a current test end of the test cabinet to form a current loop.
The current detection is used for testing whether a control circuit (mainly a control circuit such as a scram switch) of a product to be tested can normally control on and off, when the control is on, the circuit is powered on and switched on, and when the control is switched off, the circuit cannot be powered off. However, because the wind turbine usually has strong current and weak current, an inductance effect occurs, and at the moment, if the resistance value is tested by using the digital multimeter, the resistance test is interfered by induced electricity, so that the resistance test has larger deviation, and the test result is inaccurate. And digital multimeter equipment is expensive, and the operation safety is also required to be noticed when in use.
Therefore, by adopting the scheme of the embodiment, whether the control circuit is normal can be directly detected through the test software, when the control circuit is closed, the current loop is conducted, the current value of the current test end is equal to the current value (about 10mA) given by the current power supply end, or only whether the current exists at the current test end is detected, the current exists, namely the current loop is conducted, and the current loop is disconnected and the control circuit is in connection failure. The current detection unit can be only a wiring terminal, current supply and test are both carried out in the test cabinet, test results are automatically identified and recorded through test software, an operation program is simpler, more convenient and faster than a mode of adopting a digital multimeter, and the implementation cost is lower.
The second aspect of the embodiment of the invention provides a testing method for a flexible testing platform of a wind turbine generator control system, which comprises the following steps:
respectively connecting a phase sequence testing unit with a phase sequence of equipment to be tested so that a first group of testing end groups of the phase sequence testing unit are respectively connected with a U phase of the equipment to be tested and a power supply end corresponding to the U phase, a second group of testing end groups are respectively connected with a V phase of the equipment to be tested and a power supply end corresponding to the V phase, a third group of testing end groups are respectively connected with a W phase of the equipment to be tested and a power supply end corresponding to the W phase, and a fourth group of testing end groups are respectively connected with an N phase of the equipment to be tested and a zero line;
and controlling the first group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the U phase is electrified, and the other phases are powered off;
recording the test result of the U-phase power-on and the other phases power-off as a first test result;
and controlling the second group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the V phase is electrified, and the other phases are powered off;
recording the test result that the V phase is electrified and the other phases are electrified as a second test result;
and controlling the third group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the W phase is electrified, and the other phases are powered off;
recording the test result of the W phase power-on and the rest phases power-off as a third test result;
determining whether the first test result, the second test result and the third test result are all true,
if the first test result, the second test result and the third test result are all true, judging that the phase sequence test result is correct;
and if at least one of the first test result, the second test result and the third test result is false, judging that the phase sequence test result is the phase sequence error, and the phase with the phase sequence error is the phase corresponding to the false result in the first test result, the second test result and the third test result.
The phase sequence test is controlled and tested by using the test platform, and whether the phase sequence is wrong or not can be judged only by correspondingly connecting the end group of the phase sequence test unit with the three-phase power supply end group, then sequentially controlling the corresponding phases to be electrified and testing whether the phase is really electrified or not and simultaneously judging whether the other two phases are not electrified or not. The phase sequence detection mode effectively reduces the test cost and is convenient to maintain.
The third aspect of the embodiment of the invention provides a method for testing a flexible test platform of a wind turbine control system, which comprises the following steps:
respectively connecting relay coils of the power supply detection unit in series into a voltage loop of the equipment to be tested, and connecting contacts of the relay into a voltage test end of the test cabinet;
identifying whether the voltage testing end is at a high level or not when the voltage loop supplies power;
if the voltage test end is at a high level, the voltage loop supplies power normally;
and if the voltage testing end is at a low level, the power supply of the voltage loop is abnormal.
The power supply condition of a voltage loop can be detected without using a digital multimeter, the hardware cost is reduced, a coil with the same rated working voltage is connected into the loop, as long as the coil can be normally connected, the voltage is represented to be enough for the electric equipment to work, and the actual voltage value does not need to be detected specifically. When the coil is switched on, the contact is closed, the voltage testing end is electrified or becomes a high level, the testing platform can recognize that the voltage is enough, otherwise, the contact is always off, and the voltage testing end is a low level. The cost of the relay is far lower than that of a digital multimeter, and the test software directly obtains a test result and records and displays the test result without manual operation.
The fourth aspect of the embodiment of the invention provides a method for testing a flexible test platform of a wind turbine generator control system, which comprises the following steps:
a current detection unit is used for sequentially connecting a current power supply end of a test cabinet, a current channel of the device to be tested and a current test end of the test cabinet to form a current loop;
controlling the current supply end to initiate test current;
identifying whether a detection value of the current test end is equal to the test current;
if the detection value is equal to the test current, the current channel is a normal path;
and if the detection value is not equal to the test current, the current channel is a circuit fault.
Whether the control circuit is normal or not can be detected directly through test software, when the control circuit is closed, the current loop is conducted, the current value of the current test end is equal to the current value (about 10mA) given by the current power supply end, or whether the current exists at the current test end or not is only detected, the current exists, namely the current loop is conducted, the control circuit can be normally controlled to be disconnected, and the current loop is disconnected if no current exists, so that the control circuit is connected with a fault. The current detection unit can be only a wiring terminal, current supply and test are both carried out in the test cabinet, test results are automatically identified and recorded through test software, an operation program is simpler, more convenient and faster than a mode of adopting a digital multimeter, and the implementation cost is lower.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the embodiment of the invention can ensure that the test platform is connected with the test platform through the same set of heavy-load line interface when facing various hardware interfaces, the arrangement of the test cabinet is not required to be changed, only the transfer cabinet is required to be replaced, the test platform can adapt to the equipment to be tested with different hardware models, the hardware of various equipment to be tested can be compatible by using the same set of test cabinet to be matched with a plurality of transfer cabinets, and the universality of the test platform is realized;
heavy load cable is through being switched by special switching module again after subdividing in the switching cabinet, can be better the connection of overall arrangement test cable with walk the line condition, the unified switching cabinet that inserts of heavy load cable, and the cable of same await measuring equipment is drawn forth by same or adjacent special switching module, and the cable moves towards more regularly, has avoided the cable of different equipment to mix, is difficult to clear the inconvenience that the cable belongs to.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a frame of a flexible test platform of a wind turbine generator control system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a dedicated switching cabinet in a flexible test platform of a wind turbine generator control system according to a first embodiment of the present invention;
fig. 3 is a rear view of a dedicated adapter cabinet in a flexible test platform of a wind turbine control system according to a first embodiment of the present invention;
fig. 4 is a schematic wiring diagram of a dedicated transfer cabinet in a flexible test platform of a wind turbine control system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an adapter mechanism in a flexible test platform of a wind turbine generator control system according to a first embodiment of the present invention;
fig. 6 is a schematic flow chart of a testing method of a flexible testing platform of a wind turbine generator control system according to a second embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a channel capacity expansion unit in a flexible test platform of a wind turbine generator control system according to a third embodiment of the present invention;
fig. 8 is a schematic flow chart of a testing method of a flexible testing platform of a wind turbine generator control system according to a third embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a phase sequence testing unit in a flexible testing platform of a wind turbine generator control system according to a fourth embodiment of the present invention;
fig. 10 is a schematic PLC control diagram of a phase sequence testing unit in a flexible testing platform of a wind turbine generator control system according to a fourth embodiment of the present invention;
fig. 11 is a schematic flow chart of a testing method of a flexible testing platform of a wind turbine generator control system according to a fourth embodiment of the present invention;
fig. 12 is a schematic circuit diagram of a power supply detection unit in a flexible test platform of a wind turbine generator control system according to a fifth embodiment of the present invention;
fig. 13 is a schematic flow chart of a testing method of a flexible testing platform of a wind turbine generator control system according to a fifth embodiment of the present invention;
fig. 14 is a schematic circuit diagram of a device to be tested in a flexible testing platform of a wind turbine generator control system according to a sixth embodiment of the present invention;
fig. 15 is a schematic flow chart of a testing method of a flexible testing platform of a wind turbine generator control system according to a sixth embodiment of the present invention.
Detailed Description
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Based on this, the embodiment of the present invention adopts the following structure:
the first embodiment is as follows:
referring to fig. 1, the present embodiment provides a flexible test platform for a wind turbine generator system, including a test cabinet a, the test cabinet a is provided with a general wiring module a1, the general wiring module a1 is connected to a heavy load line interface of a special transfer cabinet C through a heavy load cable, the special transfer cabinet C is provided with a special transfer module 200 corresponding to a hardware model of a device to be tested B, and the special transfer module 200 is connected to the device to be tested B through a test cable.
The dedicated switch over cabinet C as shown in fig. 2-3 comprises: the cabinet body 100, the cabinet body 100 is a rectangular cabinet supported by a steel structure, and in order to maintain the beauty, the cabinet body 100 in this embodiment is provided with two side walls 120, one back wall 130 and a cabinet door capable of opening and closing, wherein the lower parts of the left side wall 120 and the back wall 130 are both provided with heavy load line interfaces 140, a difference is that the heavy load line interface 140 on the back wall 130 is an interface for testing a heavy load line, and the heavy load line interface 140 on the side wall 120 is an interface for supplying power to the heavy load line.
The top of the cabinet 100 is fixedly provided with 4 rings 150 for hanging the movable cabinet. In other embodiments, the bottom of the cabinet body can be provided with rollers, so that the cabinet body can be moved conveniently.
The steel construction both sides of the cabinet body 100 are equipped with the crossbeam, are fixed with changeover mechanism 110 on the crossbeam, and changeover mechanism 110 is as shown in fig. 5, includes: the mechanism body 111, the mechanism body 111 may be made of a thicker plate, and the installation groove 112 and the wire duct 114 are excavated from the thicker plate, or may be made of a thinner plate, and a plurality of hollow wire ducts are fixed on the thicker plate, so that the required installation groove 112 is formed in the area surrounded by the hollow wire ducts, and the inner space of the hollow wire ducts is the wire duct 114, in this embodiment, the installation groove 112 is preferably surrounded on the thinner plate.
On the mechanism body 111 shown in fig. 5, 8 mounting grooves 112 are defined in the front end face through 4 vertical hollow lanes and 8 horizontal hollow lanes, wherein 2 vertical hollow lanes are fixed on the periphery, the other 2 vertical hollow lanes are close to each other and fixed in the center of the mechanism body 111, 2 horizontal hollow lanes are also fixed on the periphery, and the rest 6 vertical hollow lanes are fixed between the 4 vertical hollow lanes to divide the space into 8 mounting grooves 112.
It can be seen that the mounting grooves 112 are symmetrically distributed on the mechanism body 111 in a left-right manner and symmetrically distributed in an up-down manner, and at the same time, a wire 114 is distributed at each side wall of the mounting groove 112.
The peripheral 2 vertical hollow lanes and 2 horizontal hollow lanes jointly form the outer wall of the mechanism body 111, and the port of the hollow lane at the joint of the 4 lanes 114 is a passage opening, so that the joint can be regarded as a gap between the lanes 114 and is used as a routing inlet of a heavy load line.
Both ends of each hollow wire channel are wiring inlets and outlets, and the side wall of the hollow wire channel is uniformly distributed with strip-shaped wire holes 115, so that the vertical hollow wire channel and the horizontal hollow wire channel can be communicated through wiring channels and wire holes 115, the wall of the mounting groove 112 formed by the surrounding of all the hollow wire channels is the side wall of the hollow wire channel, and the strip-shaped wire holes 115 are communicated with the inside and the outside of the mounting groove 112. And the wire hole 115 at the bottom of the lowest transverse hollow wire channel can be used as a routing outlet of the test cable.
The installation groove 112 is fixed with an installation rail 113, and since the embodiment preferably fixes a hollow wire path on the plate to form the installation groove 112, the installation rail 113 is fixed in the enclosed structure area on the plate, and the installation rail 113 is distributed in the installation groove 112 forming the enclosed structure.
The mounting rail 113 is provided with a screw hole for fixing the special switching module 200 shown in fig. 4 by bolts, in addition, the mounting rail 113 is also provided with an upper side wing and a lower side wing which are clamped, the tail part of the connecting terminal is put into the mounting rail 113 by clamping, the disassembly and the assembly are convenient, the special switching module 200 is combined after the number of the connecting terminals is selected, the special switching module 200 which is combined by the bolt fixing is then combined, and finally, the cable is connected, so that the work can be realized.
The embodiment further provides a wiring structure of a special switching cabinet C of a flexible testing platform, as shown in fig. 4, a wiring design is performed for a model of a device B to be tested, for example, for a control cabinet of a wind turbine generator, a special switching module 200 in a left mounting groove 112 is defined as a strong electric group testing switching module 210, the strong electric group testing switching module 210 is provided with a 3P + N phase testing interface including 400V, a 3P phase testing interface, a 230V L + N phase testing interface, an L phase testing interface, etc., the special switching module 200 in a right mounting groove 112 is defined as a weak electric group testing switching module 220, and the weak electric group testing switching module 220 is provided with a V + and a V-testing interface including 24V, a 24V + testing interface, etc.
The left and upper side wire channels 114 of the strong electric set testing switching module 210 are wire inlet channels, and the lower and right side wire channels 114 of the strong electric set testing switching module 210 are wire outlet channels; the lines 114 on the right side and the upper side of the weak current group test switching module 220 are incoming lines, and the lines 114 on the lower side and the left side of the weak current group test switching module 220 are outgoing lines.
In the wiring of this embodiment, as shown in fig. 4, a heavy-duty cable is terminated by a corresponding interface on the inner side of the back wall 130, enters from the lower side of the hollow wire channel on the left side of the mechanism body 111, and is routed through the transverse hollow wire channel, and finally, the cable is led down from the wire hole 115 above the mounting groove 112, and is connected to the upper interface of the wiring terminal of the special adapter module 200;
the lower interface of the wiring terminal is connected with a test cable, the test cable is led out from a wire hole 115 below the mounting groove 112, is routed into a middle vertical hollow wire channel through a horizontal hollow wire channel below the mounting groove 112, finally enters a lowest horizontal hollow wire channel, and is led out from the wire hole 115 at the bottom of the wire channel.
The wiring is the layout in the switching cabinet, and can be correspondingly arranged according to the specified to-be-tested equipment B, and the number of the compatible wiring terminals is selected, so that the switching cabinet is directionally connected with the to-be-tested equipment B of a plurality of types, and when in testing, the heavy load line interface 140 on the outer side of the back wall 130 is connected with the testing platform through the heavy load line, the testing cable is connected with the to-be-tested equipment B, and the corresponding debugging and testing platform can work. And when the adapter cabinet is incompatible with the model B of the equipment to be tested, correspondingly replacing the compatible special adapter cabinet C which is already wired.
The front end of the wiring terminal is a cable interface, the single wiring terminal is provided with 1-3 groups of interfaces, each group of interfaces is generally distributed in an up-down symmetrical mode, therefore, after the wiring terminal is fixed on the installation guide rail 113, the upper interface can be used as a line inlet interface for switching, the lower interface is a line outlet interface for switching, the number of the wiring terminals is selected according to the number of the test interfaces of the equipment B to be tested, the special switching modules 200 with freely selected and combined number are formed, the structure of the wiring terminal belongs to the existing conventional device, and the structural design of the wiring terminal is known by technicians in the field, and is not described herein again.
It can be known that, in other embodiments, a designer may add a plurality of mounting grooves on the basis of the above 8 mounting grooves 112 according to the upper limit of the number of accessible interfaces and the upper limit of the load of the test platform, and only need to enlarge the sizes of the cabinet 100 and the mechanism body 111, and correspondingly increase the number of the hollow lanes, so as to obtain a larger adapting mechanism 110.
The installation groove 112 may be installed with a dedicated adapter module 200 composed of not only connection terminals, but also test resistors or relays, and the dedicated adapter module 200 may be fixed to the installation rail 113 by bolts.
Example two:
referring to fig. 6, the embodiment provides a method for testing a flexible test platform of a wind turbine control system, which includes a gear reading test method:
step S301: acquiring a test configuration table;
step S302: reading a test document according to an OPC communication address in the test configuration table;
step S303: it is detected whether the test document is empty,
if the test document is empty, the process proceeds to step S304: starting to test from initialization;
if the test document is not empty, the process proceeds to step S305: initiating a prompt to enable a tester to select whether to continue testing from the last gear-off position;
step S306: acquiring an instruction of a tester;
if the instruction is to select to continue the test from the last gear-off, step S307 is entered: entering a testing step from the last gear-breaking position;
if the instruction is to choose not to continue testing from the last gear-off, step S304 is entered: the test procedure is entered from initialization.
When the method is implemented, the method further comprises the following initialization steps: configuring a test configuration table, and writing test data into a test document in real time in the test process.
In this embodiment, the test configuration table is a readable and writable file.
Example three:
the embodiment provides a flexible test platform for a wind turbine generator control system, which is different from the first embodiment in that a general connection module a1 includes a channel capacity expansion unit, and a special-purpose switching module 200 is still a connection terminal, as shown in fig. 7 in the embodiment of the general connection module a1, the channel capacity expansion unit is a relay group formed by 16 relays in parallel;
the normally open contact ends of the 16 relays are integrally regarded as the normally open contact end group of the relay group, the normally closed contact ends of the 16 relays are integrally regarded as the normally closed contact end group of the relay group, the public ends of the 16 relays are integrally regarded as the public end group of the relay group, and the touch ends of the 16 relays are integrally regarded as the touch end group of the relay group.
The normally open contact end group of the relay group is a first channel testing end group, the first channel testing end group of the equipment B to be tested is connected, namely, a terminal with a pin of 3 in the figure is respectively communicated with testing channels with channel serial numbers of ST34_2, ST34_4, … …, ST34_24 and the like, the normally closed contact end group of the relay group is a second channel testing end group, and the second channel testing end group of the equipment B to be tested is connected, namely, a terminal with a pin of 5 in the figure is respectively communicated with testing channels with channel serial numbers of ST34_1, ST34_3, … …, ST34_23 and the like;
the common terminal group of the relay group is a test channel terminal group, and is connected to the test terminal group of the test cabinet a, that is, a terminal with 4 pins of a relay in the drawing is respectively connected to test channels with channel serial numbers of K302_ CH1, K302_ CH2, … …, K302_ CH16, etc., and the touch terminal group of the relay group is a capacity expansion control terminal group for connecting to a selection control terminal group of the test cabinet a, which is not shown in the drawing, but those skilled in the art can understand that the touch terminal group is used for controlling the relay to be powered on or powered off by a test platform, so as to switch on the common terminal group and the normally open contact terminal group or switch on the common terminal group and the normally closed contact terminal group, and the connection mode is a common design in the relay field, and thus, it is not described again.
Referring to fig. 8, the present embodiment further provides a testing method for a flexible testing platform of a wind turbine generator control system, that is, the method includes:
step S401: the method comprises the steps that a channel capacity expansion unit is used for connecting a device B to be tested and a test cabinet A, so that a first channel test end group of the channel capacity expansion unit is connected with a first end group to be tested of the device B to be tested, a second channel test end group is connected with a second end group to be tested of the device B to be tested, the test channel end group is connected with a test end group of the test cabinet A, and a capacity expansion control end group is connected with a selective control end group of the test cabinet A;
step S402: judging whether the terminal group to be tested is the first terminal group to be tested or the second terminal group to be tested,
if the end group to be tested is the first end group to be tested, the method proceeds to step S403: the relay set of the channel expansion unit is controlled to be not electrified through the selective control end set, so that the first end set to be tested is conducted with the testing end set;
if it is the second to-be-tested end group, step S404 is entered: and controlling the relay set of the channel expansion unit to be electrified through the selective control end set so as to conduct the second end set to be tested and the test end set.
Example four:
the embodiment provides a flexible test platform for a wind turbine generator control system, which is different from the first embodiment in that a universal connection module a1 includes a phase sequence test unit, and a dedicated switching module 200 is still a connection terminal, in the embodiment shown in fig. 9 to 10, the phase sequence test unit includes four groups of test terminal groups, and each group of test terminal group is respectively connected to one of the UVW three-phase and the N-phase of a device to be tested B and a power supply terminal corresponding to the phase.
K308_ DO25, K308_ DO26, K308_ DO27 and K308_ DO28 illustrated in fig. 9 to 10 are all contactors controlled by a PLC, 00-K2 to 00-K5 are corresponding control coils thereof, and the 4 contactors and the control coils thereof constitute the phase sequence testing unit of the present embodiment. The contactors K308_ DO25, K308_ DO26, K308_ DO27 and K308_ DO28 are connected with the PCL control end group and are controlled by the PLC to be electrified by corresponding coils, coil contacts of 00-K2 are respectively connected with power supply ends of a U phase and a U phase, coil contacts of 00-K3 are respectively connected with power supply ends of a V phase and a V phase, coil contacts of 00-K4 are respectively connected with power supply ends of a W phase and a W phase, coil contacts of 00-K5 are respectively connected with an N phase and a zero line, and wiring of the contactors is completed.
Referring to fig. 11, the embodiment further provides a testing method of a flexible testing platform of a wind turbine control system, that is, the testing method includes:
step S501: respectively connecting a phase sequence testing unit with a phase sequence of a device B to be tested so that a first group of testing end groups of the phase sequence testing unit are respectively connected with a U phase of the device B to be tested and a power supply end corresponding to the U phase, a second group of testing end groups are respectively connected with a V phase of the device B to be tested and a power supply end corresponding to the V phase, a third group of testing end groups are respectively connected with a W phase of the device B to be tested and a power supply end corresponding to the W phase, and a fourth group of testing end groups are respectively connected with an N phase of the device B to be tested and a zero line;
step S502: and controlling the first group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the U phase is electrified, and the other phases are powered off;
step S503: recording the test result of the U-phase power-on and the other phases power-off as a first test result;
step S504: and controlling the conduction of the second group of test end groups and the fourth group of test end groups, and testing whether the rest test end groups are not conducted: the V phase is electrified, and the other phases are powered off;
step S505: recording the test result that the V phase is electrified and the other phases are electrified as a second test result;
step S506: and controlling the third group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the W phase is electrified, and the other phases are powered off;
step S507: recording the test result of the W phase power-on and the rest phases power-off as a third test result;
step S508: determining whether the first test result, the second test result and the third test result are true,
if the first test result, the second test result, and the third test result are all true, step S509 is entered: judging that the phase sequence test result is that the phase sequence is correct;
if at least one of the first test result, the second test result and the third test result is false, step S510 is entered: and judging that the phase sequence test result is that the phase sequence is wrong, and the phase with the wrong phase sequence is the phase corresponding to the first test result, the second test result and the third test result, wherein the result of the phase is false.
Example five:
the embodiment provides a flexible test platform for a wind turbine generator control system, which is different from the first embodiment in that a general wiring module a1 includes a power supply detection unit, and a dedicated adapter module 200 is still a connection terminal, as shown in the embodiment shown in fig. 12, the power supply detection unit includes two relays for respectively detecting two power supply loops, each power supply loop is provided with one relay, the detection principles of the two relays are the same, only the relay 03-K60 is described below, a coil 03-K60 is connected in series to a voltage loop of a device to be tested B (a power supply loop between ST15_23 and ST15_ 24), and a relay contact 03-K60 shown on the right side in the figure is connected to a voltage test terminal DI (K210_ DI26) of a test cabinet a;
in the embodiment, the standard power supply of the circuit B to be tested is 230VAC, so the rated working voltage of the relay is also 230VAC, in other embodiments, the power supply detection unit may further be provided with a plurality of relays for detecting more power supply circuits, wherein the circuit to be tested with the standard power supply of 3 × 400VAC may complete the power supply voltage detection through 3 relays (rated working voltage: 230V) similar to the 230V detection function, and the 24VDC may complete the 24VDC power supply voltage detection function by adopting 1 relay with the rated working voltage of 24 VDC.
Referring to fig. 13, the embodiment further provides a testing method of a flexible testing platform of a wind turbine generator control system, that is, the testing method includes:
step S601: respectively connecting relay coils of the power supply detection unit in series into a voltage loop of the equipment B to be tested, and connecting contacts of the relay into a voltage test end of the test cabinet A;
step S602: identifying whether a voltage testing end is at a high level or not when the voltage loop supplies power;
if the voltage testing terminal is at high level, step S603: the voltage loop supplies power normally;
if the voltage testing terminal is at low level, step S604: the voltage loop is abnormally supplied with power.
The working principle is as follows: when the voltage loop 230V supplies power normally, the coil 03-K60 is electrified, the contact 03-K60 is closed, the K210_ DI26 is changed from low level to high level, if the voltage loop 230V supplies power abnormally, the coil 03-K60 is not electrified, the contact 03-K60 does not act, and the K210_ DI26 keeps low level.
Although the accuracy of the voltage measurement is not achieved, whether the power supply voltage is normal or not is judged by detecting whether the on-off of the measured loop is normal or not, so that the test requirement is met.
Example six:
the embodiment provides a flexible test platform for a wind turbine generator control system, which is different from the first embodiment in that a universal connection module a1 includes a current detection unit, the current detection unit in the embodiment is also a connection terminal, fig. 14 shows a control circuit of an emergency stop switch of a product cabinet to be tested, and the first embodiment sequentially connects 808-X1: 5 is connected with the current detection unit and the first current supply end of the test cabinet A, and then the voltage of 808-X1: and 7, the current detection unit and the first current test end of the test cabinet A are connected to form a current loop. Similarly, connection 808-X1: 6. current detection unit, second current supply terminal of test cabinet a, and 808-X1: 8. the current detection unit and a second current test end of the test cabinet A.
Referring to fig. 15, the embodiment further provides a testing method of a flexible testing platform of a wind turbine control system, that is, the testing method includes:
step S701: a current detection unit is used for sequentially connecting a current power supply end of a test cabinet A, a current channel of a device B to be tested and a current test end of the test cabinet A to form a current loop;
step S702: controlling a current supply end to initiate test current;
step S703: identifying whether a detection value of the current test end is equal to a test current;
if the detected value is equal to the test current, step S704: the current channel is a normal path;
if the detected value is not equal to the test current, step S705: the current path is a circuit fault.
I.e., at 808-X1: 5-6, then at 808-X1: 7-8, with current value indicating line on and no current value indicating line off, in order to test whether the emergency stop button 808-S2 is functioning as an emergency stop.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. A flexible test platform of a wind turbine generator control system comprises a test cabinet and is used for testing equipment to be tested, and the flexible test platform is characterized in that the test cabinet is provided with a universal wiring module, the universal wiring module is used for being connected with a heavy-load wire interface of a special switching cabinet through a heavy-load cable, the special switching cabinet is provided with a special switching module corresponding to the equipment to be tested, and the special switching module is used for being connected with the equipment to be tested through the test cable;
the universal wiring module or the special switching module comprises a current detection unit, and the current detection unit is used for sequentially connecting a current power supply end of the test cabinet, a current channel of the device to be tested and a current test end of the test cabinet to form a current loop.
2. The flexible test platform for the wind turbine generator control system according to claim 1, wherein the dedicated adapter cabinet comprises a cabinet body, the cabinet body comprises two side walls and a back wall, wherein at least one side wall and/or back wall is provided with a heavy-load wire interface for connecting the heavy-load cable;
the cabinet body is fixed with the changeover mechanism, the changeover mechanism includes the mechanism body, the preceding terminal surface of mechanism body is equipped with a plurality of mounting grooves of bilateral symmetry and/or longitudinal symmetry distribution, the mounting groove internal fixation has the installation guide rail, is used for installing special switching module.
3. The wind turbine generator system control system flexible test platform according to claim 2, wherein hollow wire channels are distributed on the mechanism body around the mounting groove, the wire channels are communicated with the outer wall of the mechanism body, wire outlets and wire inlets of the wire channels are correspondingly arranged on the outer wall of the mechanism body, and the wire channels are further communicated with the groove wall of the mounting groove through wire holes.
4. The flexible testing platform for the wind turbine generator control system according to claim 1, wherein the dedicated switching modules are freely combined wiring terminals, and the number of the wiring terminals is selected according to equipment to be tested.
5. The platform of claim 1, wherein the universal connection module or the dedicated switching module comprises a phase sequence testing unit, the phase sequence testing unit comprises four testing end groups, and each testing end group is used for being connected with one of the three UVW phases and the N phases of the device to be tested and a power supply end corresponding to the testing end.
6. The flexible test platform for the wind turbine generator control system according to claim 1, wherein the universal connection module or the dedicated switching module comprises a power supply detection unit, the power supply detection unit comprises at least one relay, a coil of the relay is used for being connected in series to a voltage loop of a device to be tested, and a contact of the relay is used for being connected to a voltage test end of the test cabinet;
wherein the rated working voltage of the relay is equal to the voltage of the voltage loop.
7. A testing method for the wind turbine generator control system flexible testing platform according to any one of claims 1 to 6, characterized by comprising the following phase sequence testing method:
respectively connecting a phase sequence testing unit with a phase sequence of equipment to be tested so that a first group of testing end groups of the phase sequence testing unit are respectively connected with a U phase of the equipment to be tested and a power supply end corresponding to the U phase, a second group of testing end groups are respectively connected with a V phase of the equipment to be tested and a power supply end corresponding to the V phase, a third group of testing end groups are respectively connected with a W phase of the equipment to be tested and a power supply end corresponding to the W phase, and a fourth group of testing end groups are respectively connected with an N phase of the equipment to be tested and a zero line;
and controlling the first group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the U phase is electrified, and the other phases are powered off;
recording the test result of the U-phase power-on and the other phases power-off as a first test result;
and controlling the second group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the V phase is electrified, and the other phases are powered off;
recording the test result that the V phase is electrified and the other phases are electrified as a second test result;
and controlling the third group of test end groups and the fourth group of test end groups to be conducted, and controlling the rest test end groups not to be conducted to test whether: the W phase is electrified, and the other phases are powered off;
recording the test result of the W phase power-on and the rest phases power-off as a third test result;
determining whether the first test result, the second test result and the third test result are all true,
if the first test result, the second test result and the third test result are all true, judging that the phase sequence test result is correct;
and if at least one of the first test result, the second test result and the third test result is false, judging that the phase sequence test result is the phase sequence error, and the phase with the phase sequence error is the phase corresponding to the false result in the first test result, the second test result and the third test result.
8. A testing method for the flexible testing platform of the wind turbine control system according to any one of claims 1 to 6, characterized by comprising a power supply detection method:
respectively connecting relay coils of the power supply detection unit in series into a voltage loop of the equipment to be tested, and connecting contacts of the relay into a voltage test end of the test cabinet;
identifying whether the voltage testing end is at a high level or not when the voltage loop supplies power;
if the voltage test end is at a high level, the voltage loop supplies power normally;
and if the voltage testing end is at a low level, the power supply of the voltage loop is abnormal.
9. A testing method for the wind turbine generator control system flexible testing platform according to any one of claims 1 to 6, characterized by comprising a current detection method:
a current detection unit is used for sequentially connecting a current power supply end of a test cabinet, a current channel of the device to be tested and a current test end of the test cabinet to form a current loop;
controlling the current power supply terminal to initiate test current;
identifying whether a detection value of the current test end is equal to the test current;
if the detection value is equal to the test current, the current channel is a normal path;
and if the detection value is not equal to the test current, the current channel is a circuit fault.
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| CN202210116163.0A CN114489021A (en) | 2020-11-26 | 2020-11-26 | Flexible testing platform and testing method for wind turbine generator control system |
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| CN202210116163.0A CN114489021A (en) | 2020-11-26 | 2020-11-26 | Flexible testing platform and testing method for wind turbine generator control system |
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| CN202210116163.0A Pending CN114489021A (en) | 2020-11-26 | 2020-11-26 | Flexible testing platform and testing method for wind turbine generator control system |
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| CN114415644A (en) * | 2020-11-26 | 2022-04-29 | 重庆科凯前卫风电设备有限责任公司 | Fan control system flexible test platform and test method |
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| CN114089070B (en) * | 2021-11-18 | 2023-11-07 | 广东利元亨智能装备股份有限公司 | Formation cabinet detection device |
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| CN108419423A (en) * | 2018-05-11 | 2018-08-17 | 中国船舶重工集团公司第七二三研究所 | A kind of warship cast alloy aluminous airtight cabinet |
| CN109655706A (en) * | 2018-12-11 | 2019-04-19 | 中国航空工业集团公司成都飞机设计研究所 | A kind of remote interface units automatic test equipment |
| CN209824259U (en) * | 2019-04-04 | 2019-12-20 | 中国核动力研究设计院 | Inside integrated wiring structure of rack |
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| CN114415644A (en) * | 2020-11-26 | 2022-04-29 | 重庆科凯前卫风电设备有限责任公司 | Fan control system flexible test platform and test method |
| CN114489018A (en) * | 2020-11-26 | 2022-05-13 | 重庆科凯前卫风电设备有限责任公司 | Fan system flexibility test platform and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415644A (en) * | 2020-11-26 | 2022-04-29 | 重庆科凯前卫风电设备有限责任公司 | Fan control system flexible test platform and test method |
| CN114489018A (en) * | 2020-11-26 | 2022-05-13 | 重庆科凯前卫风电设备有限责任公司 | Fan system flexibility test platform and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112731902B (en) | 2022-02-01 |
| CN114415644A (en) | 2022-04-29 |
| CN112731902A (en) | 2021-04-30 |
| CN114489018A (en) | 2022-05-13 |
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