CN113189954B - Test tool and test method for medium-voltage ATS controller - Google Patents
Test tool and test method for medium-voltage ATS controller Download PDFInfo
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- CN113189954B CN113189954B CN202110287028.8A CN202110287028A CN113189954B CN 113189954 B CN113189954 B CN 113189954B CN 202110287028 A CN202110287028 A CN 202110287028A CN 113189954 B CN113189954 B CN 113189954B
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- 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
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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Abstract
The invention provides a test tool and a test method for a medium-voltage ATS controller, which relate to the technical field of power supply conversion and comprise the following steps: the system comprises a computer, an auxiliary test module and a manual operation and fault input breakpoint module; the auxiliary test module comprises a logic processing submodule, a power supply control submodule, a switch control submodule and a controller state input submodule; the power supply control submodule comprises a first switch group and a second switch group; the switch control submodule comprises a switch state input submodule and a switch state output submodule; the manual operation and fault input breakpoint module comprises a third switch group, a fourth switch group, a fifth switch group and a sixth switch group; the first switch group is connected with the third switch group, and the second switch group is connected with the fourth switch group; the switch state input submodule is respectively connected with the fifth switch group; and the switch state output submodule is connected with the sixth switch group. The invention can relieve the technical problems of complex operation and certain limitation in the prior art.
Description
Technical Field
The invention relates to the technical field of power supply switching, in particular to a test tool and a test method for a medium-voltage ATS controller.
Background
The logic of the medium-voltage ATS is complex, the signal quantity is large, and the test is very important for complex logic test, so that a test tool meeting the test requirement of the medium-voltage ATS controller is needed.
The test fixture needs to meet the automatic test requirements: specifically, the automatic test is very suitable for repeated testing of the previous test case after logic modification in the research and development stage, so that repeated work of manual test is reduced, and meanwhile, the automatic test can also be used for factory test of the device.
The tool needs to meet the manual test requirement: for the deficiency of automatic testing, manual testing functions need to be supplemented. Such as setting some human faults or testing some logic processes of the ATS controller for abnormal conditions, all require manual testing.
Currently, there are several test schemes for medium voltage ATS controllers:
1) Use the test of relay protection tester, this scheme has following defect: the medium-voltage ATS device has the advantages of large input voltage quantity, large number of controlled switches, limited voltage output and switch control of the relay protection tester, and no preset test logic meeting the requirements. The relay protection tester tests the medium-voltage ATS device, which causes incomplete test and incapability of testing some functions and logics. The relay protection tester is not a professional device for testing the medium-voltage ATS device and has certain limitations.
2) Using a medium-voltage switch cabinet on an actual site as a simulated actual scene test; the method is characterized in that a simulated experiment scene is built by using an actual on-site medium-voltage switch cabinet, the scene is most consistent with the actual on-site, but the medium-voltage switch cabinet is large in size and expensive and is not suitable for being used in a laboratory in a research and development stage; the test of some abnormal logics, such as abnormal circuit breaker position, is inconvenient, and the test of the abnormal logics only can change the wiring of the terminal row in the medium voltage cabinet, so that the operation is complicated, and the time is wasted.
In summary, in the prior art, the ATS testing tool cannot meet the testing requirements of the medium-voltage ATS, and has certain limitations.
Disclosure of Invention
In view of this, the present invention provides a testing tool for a medium voltage ATS controller, so as to alleviate the technical problem that the testing tool for the medium voltage ATS cannot meet the testing requirement of the medium voltage ATS, and has certain limitations.
In a first aspect, an embodiment of the present invention provides a test fixture for a medium-voltage ATS controller, including: the system comprises a computer, an auxiliary test module and a manual operation and fault input breakpoint module;
the auxiliary test module comprises a logic processing submodule, a power supply control submodule, a switch control submodule and a controller state input submodule;
the power supply control submodule comprises a first switch group and a second switch group;
the switch control submodule comprises a switch state input submodule and a switch state output submodule;
the manual operation and fault input breakpoint module comprises a third switch group, a fourth switch group, a fifth switch group and a sixth switch group;
the first switch group is connected with the third switch group, and the second switch group is connected with the fourth switch group;
the switch state input submodule is respectively connected with the fifth switch group;
and the switch state output submodule is connected with the sixth switch group.
Preferably, the logic processing submodule is a single chip microcomputer.
Preferably, the device further comprises a power supply module;
the power supply module comprises a transformer and an alternating current/direct current converter;
the primary side of the transformer is connected with an external power supply;
the output voltage of the secondary side of the transformer is used for supplying power to the auxiliary test module and the manual operation and fault input breakpoint module;
and the voltage at the output side of the alternating current/direct current converter is used for supplying power to the auxiliary test module and the manual operation and fault input breakpoint module.
On the other hand, the invention provides a test method of the medium-voltage ATS controller by using the test tool of the medium-voltage ATS controller, which sends a test start instruction to enable the logic processing submodule to determine the opening and closing states of the first switch group and the second switch group;
the ATS controller to be tested acquires the opening and closing states of the first switch group and the second switch group and controls the opening and closing states of the switch state input submodule;
and the switching state output submodule acquires the switching state of the switching state input submodule and feeds back the switching state of the switching state input submodule to the ATS controller to be tested.
Preferably, one switch in the fifth switch group is turned off to control switching in and off of the switch state input submodule.
Preferably, any switch in the third switch group is turned off to simulate an external power failure.
Preferably, any switch in the fourth switch group is turned off to simulate an external power failure.
The embodiment of the invention has the following beneficial effects: the invention provides a test tool and a test method for a medium-voltage ATS controller, which comprises the following steps: the system comprises a computer, an auxiliary test module and a manual operation and fault input breakpoint module; the auxiliary test module comprises a logic processing submodule, a power supply control submodule, a switch control submodule and a controller state input submodule; the power supply control submodule comprises a first switch group and a second switch group; the switch control submodule comprises a switch state input submodule and a switch state output submodule; the manual operation and fault input breakpoint module comprises a third switch group, a fourth switch group, a fifth switch group and a sixth switch group; the first switch group is connected with the third switch group, and the second switch group is connected with the fourth switch group; the switch state input submodule is respectively connected with the fifth switch group; and the switch state output submodule is connected with the sixth switch group. The lower test tool can solve the technical problems of complex operation and certain limitation in the prior art.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a structural diagram of a test fixture of a medium voltage ATS controller according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, in the prior art, an ATS test tool is complex to operate and has certain limitations. Based on the above, the test tool and the test method for the medium-voltage ATS controller provided by the embodiment of the invention can relieve the technical problems that the test tool is complex in operation and has certain limitations in the prior art.
For the convenience of understanding the embodiment, the test tool of the medium voltage ATS controller disclosed in the embodiment of the present invention is first described in detail.
In a first aspect, an embodiment of the present invention provides a test fixture for a medium-voltage ATS controller, including: the system comprises a computer, an auxiliary test module and a manual operation and fault input breakpoint module;
the auxiliary test module comprises a logic processing submodule, a power supply control submodule, a switch control submodule and a controller state input submodule;
the power supply control submodule comprises a first switch group and a second switch group;
the switch control submodule comprises a switch state input submodule and a switch state output submodule;
the manual operation and fault input breakpoint module comprises a third switch group, a fourth switch group, a fifth switch group and a sixth switch group;
the first switch group is connected with the third switch group, and the second switch group is connected with the fourth switch group;
the switch state input submodule is respectively connected with the fifth switch group;
and the switch state output submodule is connected with the sixth switch group.
Preferably, the logic processing submodule is a single chip microcomputer.
Preferably, the device further comprises a power supply module;
the power supply module comprises a transformer and an alternating current/direct current converter;
the primary side of the transformer is connected with an external power supply;
the output voltage of the secondary side of the transformer is used for supplying power to the auxiliary test module and the manual operation and fault input breakpoint module;
and the voltage at the output side of the alternating current/direct current converter is used for supplying power to the auxiliary test module and the manual operation and fault input breakpoint module.
On the other hand, the invention provides a test method of the medium-voltage ATS controller by using the test tool of the medium-voltage ATS controller, which sends a test start instruction to enable the logic processing submodule to determine the opening and closing states of the first switch group and the second switch group;
the ATS controller to be tested acquires the opening and closing states of the first switch group and the second switch group and controls the opening and closing states of the switch state input submodule;
and the switching state output submodule acquires the switching state of the switching state input submodule and feeds back the switching state of the switching state input submodule to the ATS controller to be tested.
According to the test tool, a computer test computer can compile a test script, the test script is converted into a communication protocol for sequentially sending control commands through a tool, an auxiliary test module is enabled to sequentially execute the commands, and all test logics and test delay are guaranteed by the script of the computer. Various test scripts may be written for different logic and stored in the computer. If the device to be tested is upgraded or changed, repeated testing can be performed through the test script, links of repeatedly modifying and upgrading software of the auxiliary test device are reduced, and test efficiency is improved.
In the auxiliary testing device, the logic processing sub-module receives a control command of an upper computer testing computer and converts the control command into the switching of a plurality of groups of relays in the power supply control sub-module, so that the working conditions that an oil engine starting command needs to be sent if a power supply is abnormal are simulated. Meanwhile, the logic processing unit reads the input state of the controller state input module according to the control command of the upper computer, judges whether the medium-pressure controller to be tested sends an oil engine starting instruction and whether information such as an alarm exists, and uploads the information to the computer to be used as a basis for judging whether the test is passed;
in the auxiliary test device, a group of switch control modules comprise two inputs PA, PB and two outputs SA and SB, wherein the two inputs are respectively a switch tripping input PA and a switch closing input PB, and the two outputs are respectively a tripping position feedback SA and a switching-on position feedback SB. When the tripping pulse is input, the logic processing unit acquires that the PA has input, and controls the SA contact to be closed and the SB contact to be opened after time delay; when the logic processing unit acquires that the PB has input, the SB contact is controlled to be closed and the SA contact is controlled to be opened through time delay; the PA is connected to a certain path of tripping output of the medium-voltage ATS controller to be tested, the PB is connected to the path of switching-on output of the medium-voltage ATS controller to be tested, the SA is connected to the path of switching-on position feedback of the medium-voltage ATS controller to be tested, the SB is connected to the path of tripping position feedback of the medium-voltage ATS controller to be tested, and the auxiliary testing device realizes a group of analog testing switches. Because the medium-voltage ATS controller can control the on-off of the multiple groups of switches (generally more than 10 groups), the auxiliary testing device provides multiple groups of switch control modules according to actual requirements, and the on-off test of the multiple groups of switches can be controlled by the medium-voltage ATS controller. Meanwhile, the logic processing unit uploads the on-off states of all switches to serve as a judgment basis of a test result and provides the judgment basis to the upper computer, and therefore whether the medium-voltage ATS controller normally controls the on-off of the switches according to expected logic can be judged.
In the automatic test, the manual operation and fault input breakpoint module except for S7 and S8 is closed, and the test performed at this time is a test without simulating an external fault. And (4) testing whether the logic correspondence of the medium-voltage ATS controller under the external abnormal working condition meets the requirements or not at the break point of the test interruption. If the S1 is disconnected, the A-phase disconnection condition of the three-phase voltage of a certain circuit on the application site can be simulated; if S9 is disconnected, the abnormal situation of the on-position feedback of a certain switch on the application field can be simulated. Thus, external fault injection in automatic testing is realized.
Further, the computer does not send control commands during manual and manual testing. At the moment, all switches in the power supply control submodule are closed, but the switch control module and the control logic function exist, the controller state input submodule also works normally, and the upper computer test computer only monitors and indicates the switch state and does not issue control.
In the manual test, in the manual operation and fault input breakpoint module, S7 and S8 are pulse contacts, when the S7 or S8 is connected, the switch control input PA or PB receives a manual control pulse, according to preset logic, SA and SB can output tripping position and closing position signals according to signals, and therefore all switch states used in the expected test are output in the switch control submodule through manually controlling multiple groups of S7 and S8;
after all the power switch states and the load switch states are manually set according to the test purpose, one or more switches in the S1-S6 are manually disconnected to simulate the abnormal voltage condition, the controller finds that the incoming line voltage of a certain loop is abnormal, and controls the switches according to the current switch position, namely the to-be-tested medium-voltage ATS controller outputs the relay contact and the on-off state through the switch control interface and outputs the relay contact and the on-off state through the controller state interface. At this time, the switch control submodule in the auxiliary test device and the controller state input submodule have an input state (namely, the output of the medium voltage ATS controller), the state and the action process are recorded through the logic processing unit, and the test computer of the upper computer reads the state and the action process in a circulating way. At the moment, the action process and the state of the medium-voltage ATS controller to be tested can be read by the testing computer, and whether the operation is executed according to the expected logic is judged, so that the aim of manual testing is fulfilled;
preferably, any switch in the third switch group is turned off to simulate an external power failure.
Preferably, any switch in the fourth switch group is turned off to simulate an external power failure.
Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a test fixture of middling pressure ATS controller which characterized in that includes: the system comprises a computer, an auxiliary test module and a manual operation and fault input breakpoint module;
the auxiliary test module comprises a logic processing submodule, a power supply control submodule, a switch control submodule and a controller state input submodule;
the power supply control submodule comprises a first switch group and a second switch group;
the switch control submodule comprises a switch state input submodule and a switch state output submodule;
the switch state input submodule comprises a switch tripping input PA and a switch closing input PB, and the switch state output submodule comprises a tripping position feedback SA and a closing position feedback SB;
the manual operation and fault input breakpoint module comprises a third switch group, a fourth switch group, a fifth switch group and a sixth switch group;
the first switch group is connected with the third switch group, and the second switch group is connected with the fourth switch group;
the switch state input submodule is respectively connected with the fifth switch group;
the switch state output submodule is connected with the sixth switch group;
the third switch group comprises S1, S2 and S3, the fourth switch group comprises S4, S5 and S6, the fifth switch group comprises S7 and S8, and the sixth switch group comprises S9 and S10;
the logic processing sub-module receives a control command of an upper computer testing computer, converts the control command into the on-off of a plurality of groups of relays in the power supply control sub-module, simultaneously reads the input state of the controller state input module according to the control command of the upper computer, judges whether the medium-pressure controller to be tested sends an oil engine starting instruction and whether information such as an alarm exists or not, and uploads the information to the computer as a basis for judging whether the test is passed or not,
when the tripping pulse is input, the logic processing unit acquires that the PA has input, and controls the SA contact to be closed and the SB contact to be opened after time delay; when the logic processing unit acquires that the PB has input, the SB contact is controlled to be closed and the SA contact is controlled to be opened through time delay; connecting PA to a certain path of tripping output of the medium-voltage ATS controller to be tested, connecting PB to the path of switching-on output of the medium-voltage ATS controller to be tested, connecting SA to the path of switching-on position feedback of the medium-voltage ATS controller to be tested, and connecting SB to the path of tripping position feedback of the medium-voltage ATS controller to be tested, so that the auxiliary test device realizes a group of analog test switches;
the auxiliary test module provides a plurality of groups of switch control modules according to actual requirements, the logic processing unit uploads the on-off states of all switches and provides the on-off states as a judgment basis of a test result to the upper computer, namely, whether the medium-voltage ATS controller normally controls the on-off of the switches according to expected logic can be judged, at the moment, the manual operation and fault input breakpoint module is closed except for S7 and S8, and the test is a test without simulating an external fault;
during manual test, in manual operation and fault input breakpoint module, S7 and S8 are pulse contacts, when S7 or S8 is connected, switch control input PA or PB can receive manual control pulse, according to preset logic, SA and SB can output tripping position and closing position signals according to signals, thereby through manual control multiunit S7 and S8, all switch states used when the desired test is output in the switch control submodule are enabled to be passed, one or more switches in S1-S6 are manually disconnected, the condition of abnormal voltage is simulated, the medium voltage ATS controller to be tested passes through the switch control output relay contacts and the opening and closing state, the relay contacts and the opening and closing state are output through the controller state input submodule, at the moment, the switch control submodule and the controller state input submodule have input states, the test computer reads the action process and the state of the medium voltage ATS controller to be tested, and judges whether the operation is executed according to the preset logic, and the purpose of manual test is achieved.
2. The test tool of the medium-voltage ATS controller according to claim 1, wherein the logic processing submodule is a single chip microcomputer.
3. The test tool of the medium voltage ATS controller according to claim 1, further comprising a power supply module;
the power supply module comprises a transformer and an alternating current/direct current converter;
the primary side of the transformer is connected with an external power supply;
the output voltage of the secondary side of the transformer is used for supplying power to the auxiliary test module and the manual operation and fault input breakpoint module;
and the voltage at the output side of the alternating current/direct current converter is used for supplying power to the auxiliary test module and the manual operation and fault input breakpoint module.
4. A method for testing a medium voltage ATS controller using the test tool of the medium voltage ATS controller according to claim 1,
sending a test starting instruction to enable the logic processing submodule to determine the opening and closing states of the first switch group and the second switch group;
the ATS controller to be tested acquires the opening and closing states of the first switch group and the second switch group and controls the opening and closing states of the switch state input submodule;
and the switching state output submodule acquires the switching state of the switching state input submodule and feeds back the switching state of the switching state input submodule to the ATS controller to be tested.
5. The method of claim 4, wherein one switch in the fifth switch set is opened to control switching in and out of a switch state input submodule.
6. The method of claim 4, wherein any switch in the third switch set is opened to simulate an external power failure.
7. The method of claim 4, wherein any switch in the fourth switch set is opened to simulate an external power failure.
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