Integrated simulation test system and method for diesel engine speed regulation system

Abstract

The application particularly relates to an integrated simulation test system and method for a diesel engine speed regulation system, and belongs to the field of diesel engine speed regulation system testing. The system comprises: a diesel engine simulation simulation module for simulating output of a diesel engine working mode, responding to entering an offline test working mode or an online monitoring working mode, and providing offline test working parameters or online monitoring working parameters for the diesel engine speed regulation system; and a diesel engine speed regulation system simulation simulation test module for responding to entering the offline test working mode or the online monitoring working mode, and collecting offline test working state parameters or online monitoring working state parameters of the diesel engine speed regulation system in real time. The method uses the device to perform simulation test of the diesel engine speed regulation system. The application realizes offline test function verification of the diesel engine speed regulation system, reduces the cost and risk of diesel engine speed regulation system function verification, simultaneously realizes comprehensive test of the diesel engine speed regulation system, and improves the availability and reliability of the diesel engine speed regulation system function.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of diesel engine speed regulation system testing, in particular to an integrated simulation testing system and method for diesel engine speed regulation system. BACKGROUND

[0002] As an important safety device of nuclear power plants, nuclear emergency diesel engine is closely related to nuclear safety. In the event of an emergency, the diesel engine as an emergency power supply can play a role in promoting the normal shutdown of the reactor and protecting critical equipment from damage, and plays a crucial role in ensuring nuclear safety. Practice has proved that once a nuclear power plant fails, if the diesel engine cannot start normally and provide high-quality power, the consequences are unpredictable.

[0003] The diesel engine speed regulation system is the most important control system of the diesel engine, which functions to control the start and speed stability of the diesel engine according to external requirements and the current working state of the diesel engine, so as to ensure that the output of the diesel engine meets the external requirements. The diesel engine speed regulation system currently adopts an online testing mode for function verification, and the diesel engine speed regulation system online testing must rely on the actual operation of the diesel engine on site, resulting in high cost and high risk of diesel engine speed regulation system function verification. During the diesel engine speed regulation system online testing process, once the diesel engine speed regulation system fails, it may cause damage to the diesel engine itself, such as runaway and overload operation. SUMMARY

[0004] In order to solve the problem of high operation cost and high risk of the diesel engine speed regulation system using the online testing mode for function verification, the present application provides an integrated simulation testing system and method for diesel engine speed regulation system, which realizes the diesel engine speed regulation system using the offline testing mode for function verification, reduces the cost and risk of diesel engine speed regulation system function verification, and at the same time realizes the comprehensive testing of diesel engine speed regulation system, improves the availability and reliability of diesel engine speed regulation system function.

[0005] In order to solve the above problems, on the one hand, the present application provides an integrated simulation testing system for diesel engine speed regulation system, comprising:

[0006] The diesel engine simulation simulation module is used for simulating the output of the diesel engine working mode; in response to entering the offline testing working mode, the diesel engine speed regulation system is provided with offline testing working parameters based on the simulated output of the diesel engine working mode; in response to entering the online monitoring working mode, the diesel engine speed regulation system is provided with online monitoring working parameters based on the simulated output of the diesel engine working mode;

[0007] The diesel engine speed regulation system simulation and emulation test module is configured to, in response to entering an offline test mode, collect and display and analyze offline test state parameters of the diesel engine speed regulation system generated according to offline test working parameters in real time, and, in response to entering an online monitoring mode, collect and record and display online monitoring state parameters of the diesel engine speed regulation system generated according to online monitoring working parameters in real time; the online monitoring state parameters of the diesel engine speed regulation system are channel waveforms.

[0008] As one of the possible implementations, the diesel engine speed regulation system comprises an electronic speed regulator and a mechanical speed regulator; the diesel engine speed regulation system simulation and emulation test module comprises an electronic speed regulator simulation and emulation test module and a mechanical speed regulator simulation and emulation test module.

[0009] The diesel engine simulation and emulation module is configured to simulate and output a diesel engine working mode, provide offline test working parameters for the electronic speed regulator and the mechanical speed regulator in response to entering an offline test mode, and provide online monitoring working parameters for the electronic speed regulator and the mechanical speed regulator in response to entering an online monitoring mode.

[0010] The electronic speed regulator simulation and emulation test module is configured to, in response to entering an offline test mode, collect and display and analyze offline test state parameters of the electronic speed regulator generated according to offline test working parameters in real time, and, in response to entering an online monitoring mode, collect and record and display online monitoring state parameters of the electronic speed regulator generated according to online monitoring working parameters in real time.

[0011] The mechanical speed regulator simulation and emulation test module is configured to, in response to entering an offline test mode, collect and display and analyze offline test state parameters of the mechanical speed regulator generated according to offline test working parameters in real time, and, in response to entering an online monitoring mode, collect and record and display online monitoring state parameters of the mechanical speed regulator generated according to online monitoring working parameters in real time.

[0012] As one of the possible implementations, the diesel engine simulation and emulation module comprises:

[0013] The mode control unit is configured to generate offline test signals or online monitoring signals in corresponding working modes based on the simulated and output diesel engine working mode; the offline test signals and the online monitoring signals both comprise instruction signals and synchronization signals, and the instruction signals contain offline test working parameters or online monitoring working parameters.

[0014] The signal output control unit is connected with the electronic governor and the mechanical governor through the lower computer module, and is configured to output the instruction signal to the corresponding diesel engine speed regulation system through the lower computer module, and output the synchronization signal to the lower computer module, so that the lower computer module controls the output of the instruction signal.

[0015] The instruction signal is sequentially issued according to a message queue, and the synchronization signal is repeatedly issued at equal intervals.

[0016] As one of the implementable modes, the diesel engine simulation module further comprises:

[0017] The diesel engine simulation module further comprises:

[0018] The mode recording unit is configured to record the change of the working mode of the diesel engine.

[0019] The mode change display unit is configured to generate and display a change curve of the working mode of the diesel engine in real time according to the recorded change of the working mode of the diesel engine.

[0020] As one of the implementable modes, the working mode of the diesel engine simulated and output by the diesel engine simulation module comprises one or a combination of the following modes:

[0021] Start, stop, tripping, closing, normal start mode, emergency start mode, idle start mode, full-speed start mode, speed reduction speed regulation mode, constant speed speed regulation mode, speed increase, speed decrease, at least one simulated rotating speed, and mechanical governor rotating speed.

[0022] As one of the implementable modes, the integrated simulation test system of the diesel engine speed regulation system further comprises:

[0023] The parameter configuration module is configured to configure acquisition variables to be acquired from the electronic governor and the mechanical governor; the acquisition variables are configured as display variables or non-display variables.

[0024] As one of the implementable modes, the electronic governor simulation simulation test module comprises:

[0025] The state parameter display unit is configured to generate a continuous change curve of the working state parameter of the electronic governor based on the change of the working state parameter of the electronic governor corresponding to the display variable.

[0026] The channel waveform unit is configured to record and display waveforms of each channel of the electronic governor.

[0027] The electronic governor fault analysis unit is configured to analyze and obtain a fault state of the electronic governor based on the working state parameter of the electronic governor.

[0028] As one of the implementable modes, the mechanical governor simulation simulation test module comprises:

[0029] Running state acquisition and display unit, for acquiring and displaying the running state of the mechanical governor in different rotating speeds, acceleration and deceleration processes;

[0030] State change acquisition and display unit, for acquiring and displaying the change of the output angle of the mechanical governor and the state change of the throttle rack;

[0031] Curve recording unit, for recording any one or more combinations of the speed curve, the current curve and the rack curve of the mechanical governor according to the running state and the state change;

[0032] Mechanical governor fault analysis unit, for judging whether the mechanical governor exists in the shaking or the stall according to the running state and the state change.

[0033] As one of the implementable modes, the integrated simulation test system of the diesel engine speed regulation system further comprises:

[0034] The preset test software installed in the auxiliary analysis terminal; the auxiliary analysis terminal is connected with the electronic governor;

[0035] The preset test software is used for reading and writing the set parameters in the electronic governor and recording the working parameter changes of the electronic governor.

[0036] In the second aspect, the application further provides an integrated simulation test method of the diesel engine speed regulation system, which uses the integrated simulation test system of the diesel engine speed regulation system and comprises the following steps:

[0037] The diesel engine simulation simulation module simulates the output of the diesel engine working mode;

[0038] The diesel engine simulation simulation module and the diesel engine speed regulation system simulation simulation test module are both responsive to the entering of the offline test working mode or the online monitoring working mode;

[0039] In the offline test working mode, the diesel engine simulation simulation module provides the offline test working parameters for the diesel engine speed regulation system based on the simulated output of the diesel engine working mode, and the diesel engine speed regulation system simulation simulation test module collects the working state parameters generated by the diesel engine speed regulation system according to the offline test working parameters in real time and displays and analyzes them;

[0040] In the online monitoring working mode, the diesel engine simulation simulation module provides the online monitoring working parameters for the diesel engine speed regulation system based on the simulated output of the diesel engine working mode, and the diesel engine speed regulation system simulation simulation test module collects the channel waveforms generated by the diesel engine speed regulation system according to the online monitoring working parameters in real time and records and displays them.

[0041] The beneficial technical effects of the application are as follows:

[0042] The integrated simulation test system and method of the diesel engine speed regulation system can simultaneously test and evaluate the running state of the electronic speed regulator and the mechanical speed regulator of the diesel engine speed regulation system, realizes offline monitoring and checking analysis of the diesel engine speed regulation system, can comprehensively monitor the running state of the diesel engine speed regulation system, reduces fault judgment and decision-making time, reduces the non-planned unavailable time of the nuclear power emergency generator set, increases the safety benefit and economic benefit of the nuclear power plant, can significantly reduce the factory test and checking cost of the mechanical speed regulator and the electronic speed regulator, ensures the reliability and availability of the diesel engine speed regulation system, can train and teach the operation personnel, can realize detection of the diesel engine speed regulation system, and can achieve the purpose of technical training. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 A principle schematic diagram of an upper computer module in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0044] Figure 2 A principle schematic diagram of a diesel engine simulation simulation module in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0045] Figure 3 A working principle schematic diagram of the upper computer module in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0046] Figure 4 A principle structure schematic diagram of an electronic speed regulator simulation simulation test module in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0047] Figure 5 A principle structure schematic diagram of a mechanical speed regulator simulation simulation test module in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0048] Figure 6 A working principle schematic diagram of the integrated simulation test system of the diesel engine speed regulation system in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0049] Figure 7 A process schematic diagram of intelligent checking of the electronic speed regulator in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0050] Figure 8 A process schematic diagram of monitoring of the electronic speed regulator in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the present application is shown.

[0051] Figure 9The figure shows the process of fault monitoring and analysis of the electronic governor in the integrated simulation test system of the diesel engine speed regulation system according to an embodiment of the application.

[0052] Figure 10 The figure shows the flowchart of the integrated simulation test method of the diesel engine speed regulation system according to an embodiment of the application. DETAILED DESCRIPTION

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0054] Reference herein to“an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another.

[0055] The terms“comprises”,“comprising”, or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0056] The technical solutions of the application are described below in connection with the drawings and specific embodiments.

[0057] The embodiment provides an integrated simulation test system of a diesel engine speed regulation system, which is used for online monitoring and offline testing of the diesel engine speed regulation system, and comprises:

[0058] A diesel engine simulation simulation module is configured to simulate output of a diesel engine working mode; in response to entering an offline test working mode, the diesel engine simulation simulation module is configured to provide offline test working parameters for the diesel engine speed regulation system based on the simulated output of the diesel engine working mode; and in response to entering an online monitoring working mode, the diesel engine simulation simulation module is configured to provide online monitoring working parameters for the diesel engine speed regulation system based on the simulated output of the diesel engine working mode;

[0059] A diesel engine speed regulation system simulation simulation test module is configured to, in response to entering the offline test working mode, collect, display and analyze offline test working state parameters generated by the diesel engine speed regulation system according to the offline test working parameters in real time; and in response to entering the online monitoring working mode, the diesel engine speed regulation system simulation simulation test module is configured to collect, record and display online monitoring working state parameters generated by the diesel engine speed regulation system according to the online monitoring working parameters in real time; and the online monitoring working state parameters of the diesel engine speed regulation system are channel waveforms.

[0060] Referring to Figure 1 In this embodiment, as one of the implementable modes, the diesel engine speed regulation system comprises an electronic speed regulator and a mechanical speed regulator; the diesel engine speed regulation system simulation test module comprises an electronic speed regulator simulation test module and a mechanical speed regulator simulation test module;

[0061] The integrated simulation test system of the diesel engine speed regulation system is arranged in the upper computer module, and the upper computer module is connected with the electronic speed regulator and the mechanical speed regulator through the lower computer module; the diesel engine simulation module is connected with the electronic speed regulator and the mechanical speed regulator through the lower computer module, the electronic speed regulator simulation test module is connected with the electronic speed regulator through the lower computer module, and the mechanical speed regulator simulation test module is connected with the mechanical speed regulator through the lower computer module;

[0062] The diesel engine simulation module is used for simulating output of a diesel engine working mode, responding to entering an offline test working mode, and providing offline test working parameters for the electronic speed regulator and the mechanical speed regulator based on the simulated output of the diesel engine working mode through the lower computer module; and responding to entering an online monitoring working mode, and providing online monitoring working parameters for the electronic speed regulator and the mechanical speed regulator based on the simulated output of the diesel engine working mode through the lower computer module;

[0063] The electronic speed regulator simulation test module is used for responding to entering the offline test working mode, collecting, displaying and analyzing offline test working state parameters generated by the electronic speed regulator according to the offline test working parameters in real time through the lower computer module; and responding to entering the online monitoring working mode, collecting, recording and displaying online monitoring working state parameters generated by the electronic speed regulator according to the online monitoring working parameters in real time through the lower computer module; so as to perform online monitoring and offline test on the electronic speed regulator.

[0064] The mechanical speed regulator simulation test module is used for responding to entering the offline test working mode, collecting, displaying and analyzing offline test working state parameters generated by the mechanical speed regulator according to the offline test working parameters in real time through the lower computer module; and responding to entering the online monitoring working mode, collecting, recording and displaying online monitoring working state parameters generated by the mechanical speed regulator according to the online monitoring working parameters in real time through the lower computer module; so as to perform online monitoring and offline test on the mechanical speed regulator.

[0065] In this embodiment, as one of the implementable modes, the lower computer module comprises:

[0066] The input and output unit is used for transmitting the instruction signal sent by the diesel engine simulation module to the electronic governor, and transmitting the control signal generated by the electronic governor according to the instruction signal to the electronic governor simulation test module; the input and output unit is used for transmitting the instruction signal sent by the diesel engine simulation module to the mechanical governor, and transmitting the control signal generated by the mechanical governor according to the instruction signal to the mechanical governor simulation test module;

[0067] The signal acquisition unit is used for acquiring the control signal generated by the electronic governor according to the instruction signal in real time; and acquiring the control signal generated by the mechanical governor according to the instruction signal in real time;

[0068] The electronic governor simulation test module is used for generating the monitoring information of the electronic governor based on the control signal generated by the electronic governor, displaying and analyzing the working state parameters of the electronic governor, so as to perform online monitoring and offline test on the electronic governor;

[0069] The mechanical governor simulation test module is used for generating the monitoring information of the mechanical governor based on the control signal generated by the mechanical governor, displaying and analyzing the working state parameters of the mechanical governor, so as to perform online monitoring and offline test on the mechanical governor;

[0070] The instruction signal contains offline test working parameters or online monitoring working parameters; the control signal contains offline test working state parameters or online monitoring working state parameters; the working state parameters are offline test working state parameters or online monitoring working state parameters; the online monitoring working state parameters are channel waveforms.

[0071] In the embodiment, as one of the implementable modes, the PLC is used as the lower computer module to complete the functions of sampling, storage unit distribution, compression and restoration of the electrical signals of the diesel engine speed regulation system, and the data communication between the lower computer module and the diesel engine speed regulation system and the integrated simulation test system of the diesel engine speed regulation system is mainly in the Modbus and TCP / IP modes.

[0072] In the embodiment, as one of the implementable modes, the PLC as the lower computer module comprises: a performance excellent instrument and power module, a terminal connector and a wire with excellent conductivity, a main control box, and electrical elements reasonably distributed in the main control box.

[0073] The lower computer module is stable and has good insulation, so as to significantly improve the reliability and anti-interference performance of the lower computer module in operation, and ensure that the lower computer module does not occur misadjustment, disadjustment, malfunction, refusal to move and the like when subjected to any electrical operation, lightning strike, static electricity and electromagnetic interference such as radio transceiver in the field.

[0074] In the embodiment, as one of the implementable modes, the host computer module includes an industrial computer, a touch screen arranged on the front of the industrial computer, a plurality of operation buttons and / or operation knobs arranged on the side of the touch screen and used for controlling the electronic governor and the mechanical governor to perform intelligent verification, and a plurality of plug-in ports arranged on the back of the industrial computer; wherein the plurality of plug-in ports include a plurality of VGA ports, USB ports, network interfaces, printer interfaces and waveform recorders.

[0075] In the embodiment, as one of the implementable modes, the host computer module takes the touch screen as a man-machine interface window, and the touch screen is used for input and output control. A hot-pluggable mobile storage device interface is reserved, and a printer and a waveform recorder are used as expandable peripherals.

[0076] In the embodiment, as one of the implementable modes, the industrial computer of the host computer module adopts an embedded industrial controller IPC, which can realize data function combination, higher cycle operation speed, storage and graphic display functions. For example, the industrial computer adopts an X86 high-order CPU based on an IPC architecture, which has low power consumption, less heat generation, strong operation capacity and powerful graphic processing capacity. The main control unit component of the industrial computer adopts an aluminum-magnesium alloy shell, which has fast heat dissipation, dustproof and shock resistance, and a solid shell.

[0077] Referring to Figure 3 In the embodiment, as one of the implementable modes, the integrated simulation test system of the diesel engine speed regulation system further includes:

[0078] A preset test software installed on the auxiliary analysis terminal; the auxiliary analysis terminal is connected with the electronic governor;

[0079] The preset test software is used for reading and writing the set parameters in the electronic governor and recording the working parameter changes of the electronic governor.

[0080] For example, the LEEC tool software of the electronic governor interface and parameter management is configured in the auxiliary analysis terminal, the LEEC tool software is the original test tool software of the diesel engine, the LEEC software is installed on an IPC or a laptop, and the LEEC software is connected with the electronic governor through an RS232 interface, so as to read and write the set parameters of the electronic governor and record the working parameter changes of the electronic governor. The LEEC tool software as the original test tool software of the diesel engine can assist and verify the test results of the test on the electronic governor by the integrated simulation test system of the diesel engine speed regulation system.

[0081] The integrated simulation test system of the diesel engine speed regulation system in the embodiment can simultaneously test and evaluate the running states of the mechanical speed regulator and the electronic speed regulator of the diesel engine speed regulation system, realizes offline detection and verification analysis of the diesel engine speed regulation system, can comprehensively monitor the running state of the diesel engine speed regulation system, can significantly reduce the factory test and verification cost of the mechanical speed regulator and the electronic speed regulator, ensures the reliability and availability of the diesel engine speed regulation system, reduces the diesel engine speed regulation system fault judgment and decision-making time, reduces the non-planned unavailability time of the nuclear power emergency generator set, and increases the safety benefit and economic benefit of the nuclear power plant.

[0082] In the embodiment, as one of the implementable modes, an operation mode protection is set for the host computer module, and data storage and retrieval can be performed in any mode during the test process; when the software platform of the host computer module is normally used, installation and operation of third-party software are not allowed, data cannot be written into the OS system storage area, and only data operation can be performed on the test data storage area; only under the authorization of the operator and by changing the OS system into the debugging mode, the software upgrade of the host computer module or the installation of third-party APP software can be performed. These designs prevent accidental failure of the OS system in the host computer module, delay the storage medium life, and save storage space resources.

[0083] Referring to Figure 2 In the embodiment, as one of the implementable modes, the diesel engine simulation simulation module includes:

[0084] The mode control unit is configured to generate an offline test signal or an online monitoring signal in a corresponding working mode based on the simulated output of the diesel engine working mode; the offline test signal and the online monitoring signal both include an instruction signal and a synchronization signal, and the instruction signal contains an offline test working parameter or an online monitoring working parameter;

[0085] The signal output control unit is connected with the electronic speed regulator and the mechanical speed regulator through the lower computer module, and is configured to output the instruction signal to the corresponding diesel engine speed regulation system through the lower computer module, and output the synchronization signal to the lower computer module, so that the lower computer module controls the output of the instruction signal.

[0086] The instruction signal is sent one by one according to the message queue, and the synchronization signal is repeatedly sent at intervals.

[0087] In the embodiment, as one of the implementable modes, the diesel engine working mode simulated and output by the diesel engine simulation simulation module includes one or a combination of the following: starting, stopping, tripping, closing, normal starting mode, emergency starting mode, idle starting mode, full-speed starting mode, speed reduction speed regulation mode, constant speed speed regulation mode, speed increase, speed decrease, at least one simulated speed, and mechanical speed regulator speed.

[0088] In this embodiment, as one of the implementable modes, the diesel engine simulation module can display and record the continuous changes of all parameters of the diesel engine operating mode and represent them in the form of real-time curves.

[0089] The diesel engine simulation module further comprises:

[0090] A mode recording unit for recording the changes of the diesel engine operating mode.

[0091] A mode change display unit for generating and displaying the change curves of the diesel engine operating mode in real time according to the recorded changes of the diesel engine operating mode.

[0092] In this embodiment, as one of the implementable modes, the electronic governor simulation and emulation test module provides switch value and analog value input parameter management for the electronic governor according to the requirements of the diesel engine simulation module, and measures all parameters to provide to the diesel engine simulation module.

[0093] In this embodiment, as one of the implementable modes, the integrated simulation test system of the diesel engine speed regulation system further comprises:

[0094] A parameter configuration module for configuring the acquisition variables to be acquired from the electronic governor and the mechanical governor; wherein the acquisition variables are configured as display variables and non-display variables.

[0095] In this embodiment, as one of the implementable modes, the electronic governor simulation and emulation test module can display and record the continuous changes of all operating state parameters of the electronic governor and represent them in the form of real-time curves; and the electronic governor simulation and emulation test module can have historical monitoring information data playback, combined detailed analysis function, and waveform data can be analyzed on site and captured and stored, to realize real-time display and historical record comparison of the commissioning data.

[0096] Referring to Figure 4 , in this embodiment, as one of the implementable modes, the electronic governor simulation and emulation test module comprises a state parameter display unit, a channel waveform unit, and an electronic governor fault analysis unit.

[0097] The state parameter display unit is configured to generate a continuous change curve of the operating state parameters of the electronic governor based on the changes of the operating state parameters of the electronic governor corresponding to the display variables.

[0098] The channel waveform unit is configured to record and display the channel waveforms of the electronic governor.

[0099] The electronic governor fault analysis unit is configured to analyze and obtain the fault state of the electronic governor based on the operating state parameters of the electronic governor.

[0100] In this embodiment, as one of the implementable ways, the working state parameters of the electronic speed regulator include the switching value, the working current display value, the actual speed measurement value, the speed setting value, the number of speed probe failures, and the number of watchdog failures. The state parameter display unit can identify the working current of different electronic speed regulators in the form of (mA) and ((A).

[0101] In this embodiment, as one of the implementable ways, the mechanical speed regulator simulation test module can realize the speed setting, oil pressure test, and output angle test of the mechanical speed regulator. The speed of the motor can be regulated within (0 2000) rpm.

[0102] In this embodiment, as one of the implementable ways, the mechanical speed regulator simulation test module can display and record the continuous changes of all parameters of the mechanical speed regulator in the form of real-time curves. Specifically, as shown in Figure 5 the mechanical speed regulator simulation test module includes a running state acquisition display unit, a state change acquisition display unit, a curve recording unit, and a mechanical speed regulator fault analysis unit.

[0103] The running state acquisition display unit is configured to acquire and display the running state of the mechanical speed regulator in different speeds, accelerations, and decelerations.

[0104] The state change acquisition display unit is configured to acquire and display the changes of the output angle of the mechanical speed regulator and the state changes of the oil rack.

[0105] The curve recording unit is configured to record any one or a combination of the speed curve, the current curve, and the rack curve of the mechanical speed regulator 111 according to the running state and the state changes.

[0106] The mechanical speed regulator fault analysis unit is configured to determine whether the mechanical speed regulator has a shaking or stalling problem according to the running state and the state changes.

[0107] In this embodiment, as one of the implementable ways, the diesel engine simulation simulation module can configure the working parameters of each channel of the mechanical speed regulator to be measured, including the simulated speed and the set speed. The output current value of the mechanical speed regulator is output to the actuator of the mechanical speed regulator by the electronic speed regulator. The current value and the comparison between the simulated speed and the set speed of the mechanical speed regulator jointly regulate the speed response, so as to change the output angle of the output shaft of the mechanical speed regulator for oil adjustment. The mechanical speed regulator simulation test module records the continuous change curve of the parameters in this adjustment state.

[0108] ​​In this embodiment, the diesel engine simulation module outputs continuous speed signal for the mechanical governor, drives the mechanical governor to operate in a specific speed range, so that the mechanical governor simulation test module can not only obtain the operating state of the mechanical governor in different speeds and acceleration and deceleration processes, and whether there is jitter or stall phenomenon, but also can obtain the change of output angle, the state change of throttle rack, and record the speed curve, current curve and rack curve, and further measure the working state of the mechanical governor.

[0109] The embodiment of the application provides a kind of diesel engine speed regulation system integration simulation test system, provides almost complete simulation test close to real environment, error ≤±5%.Test system simulates the voltage, current amplitude provided to the corresponding channel of governor when diesel engine works, compared with the given voltage, current amplitude when diesel engine runs, numerical error ≤±5%.

[0110] Referring to Figure 6 In this embodiment, the diesel engine speed regulation system integration simulation test system can perform online monitoring and offline testing on the diesel engine speed regulation system, and can also evaluate and analyze online monitoring and offline testing.

[0111] When the electronic governor simulation test module and the mechanical governor simulation test module only display the collected data without further processing and analysis of the collected data, the electronic governor and the mechanical governor can be monitored only by the diesel engine simulation module.

[0112] The diesel engine speed regulation system integration simulation test system generates monitoring information according to the received electrical signal, and then displays the monitoring information in real time. Professional technicians can analyze and judge the real actual operating state of the diesel engine by observing the monitoring information, and further judge whether the adjustment function of the electronic governor is abnormal. When the diesel engine governor monitoring function is used, start the diesel engine electronic governor test software, display the LOGO interface, click to enter the main interface, the host computer station and the lower computer signal transmission module establish communication, the operation interface of the diesel engine simulation module appears, there are various sub-modules of the above diesel engine simulation module on the operation interface, various operations can be performed, operation permissions can be obtained, and various calibration data and preset values of simulated speed and acceleration can be automatically changed according to the test mode.

[0113] In this embodiment, as one of the implementable ways, when the electronic governor is tested offline, the input and output unit of the lower computer module is connected with the electronic governor through cable for transmitting instruction signal, and then the plurality of probes are connected with the corresponding lines of the electronic governor respectively for collecting control signal, the test instruction including instruction signal and synchronization signal is sent to the input and output unit by the operation interface of the integrated simulation test system of the diesel engine simulation test module, and then the instruction signal is transmitted to the electronic governor by the input and output unit.

[0114] In order to ensure the response time sequence of the PLC of the lower computer module, the instruction signal is sent one by one according to the queue organization, and the synchronization signal is sent repeatedly at equal intervals, when the PLC cannot receive the synchronization signal, all outputs are prohibited, the control signal is generated based on the instruction signal after the electronic governor receives the instruction signal, the control signal is mainly embodied by current, the change value of the current on the test line is collected by the probe, and is transmitted to the electronic governor simulation test module by the input and output unit, the PLC organizes data periodically, and uploads the data to the electronic governor simulation test module in batches, the electronic governor simulation test module decompresses, displays and stores the data, the channel of signal collection adopts TCP / IP protocol;

[0115] After the upper computer module starts communication, the connection request of the PLC is listened; after the connection is established, the data packet is listened; the data packet has time stamp to ensure accurate collection time;

[0116] If network interruption occurs, the automatic recovery mechanism of the communication channel can automatically rebuild the two communication channels after the network recovers, so as to ensure the continuity and integrity of data collection.

[0117] In this embodiment, as one of the implementable ways, the electronic governor simulation test module records the continuous change process of all the adjustment parameters of the electronic governor in the online working state, and also records the possible fault state data of the electronic governor;

[0118] Both on-site analysis and snapshot can be realized, the working state parameters of all channels of the electronic governor are recorded continuously for a long time, and all channel data are played back, combined, superimposed and other digital processing, so as to completely realize scene reproduction;

[0119] The instruction signal sent by the diesel engine simulation module is stored in real time by the electronic governor simulation test module, that is, the operation behavior is recorded.

[0120] By recording the operation behavior, the result (monitoring information) caused by the operation behavior is also recorded.

[0121] In order to facilitate the user intuitive comparison of data waveform image information, the electronic governor simulation test module is provided with a data analysis tool, so that the electronic governor failure can be better analyzed, and the electronic governor can be quickly diagnosed and analyzed.

[0122] In the embodiment, as one of the implementable modes, the integrated simulation test system of the diesel engine speed regulation system is provided with a simulation test mode, a monitoring measurement mode and a fault diagnosis mode.

[0123] Referring to Figure 7 In the simulation test mode, the integrated simulation test system of the diesel engine speed regulation system displays a simulation test function panel for the user to configure simulation test parameters.

[0124] After the user completes the simulation test parameter configuration, the diesel engine simulation module simulates the output of the diesel engine working mode, responds to enter the simulation test mode, and outputs the simulation test instruction to the diesel engine speed regulation system based on the diesel engine working mode. The diesel engine speed regulation system simulation test module collects the working state data generated by the diesel engine speed regulation system according to the simulation test instruction in real time and displays and analyzes it.

[0125] Referring to Figure 8 In the embodiment, as one of the implementable modes, in the monitoring measurement mode, the integrated simulation test system of the diesel engine speed regulation system continuously records the working state data of the diesel engine speed regulation system such as current, voltage, speed and ECC, and the simulation test operation function is disabled. The recording action is started and stopped through the recording menu, and the waveform recording window can also be paused.

[0126] Referring to Figure 9 In the embodiment, as one of the implementable modes, in the fault diagnosis mode, the integrated simulation test system of the diesel engine speed regulation system analyzes various real-time working state data and historical working state data of the diesel engine speed regulation system.

[0127] In order to facilitate the user intuitive comparison of data waveform, the integrated simulation test system of the diesel engine speed regulation system is provided with at least one analysis tool, and the various real-time working state data and historical working state data of the diesel engine speed regulation system are recorded with characteristic values such as equipment model and electric governor number as identifiers. The start and end time and duration information can be viewed.

[0128] In the embodiment, as one of the implementable modes, the data of the integrated simulation test system of the diesel engine speed regulation system in the online monitoring mode and the offline test mode includes the working parameter changes of each channel of the electronic speed regulator and the state parameter changes of the measurement setting.

[0129] The working parameter changes of each channel of the electronic governor include switch value changes, working current display values, actual speed measurement values, speed setting values, frequency probe fault times and watchdog fault times;

[0130] The measured setting state parameter changes include RUN and STOP states, on-line and off-line states, idle speed, full speed starting mode and speed reduction.

[0131] Referring to Figure 10 The embodiment also provides an integrated simulation test method of the diesel engine speed regulation system, which uses the integrated simulation test system of the diesel engine speed regulation system and includes the following steps:

[0132] The diesel engine simulation simulation module simulates and outputs the diesel engine working mode;

[0133] The diesel engine simulation simulation module and the diesel engine speed regulation system simulation simulation test module are both responsive to entering the offline test working mode or the online monitoring working mode;

[0134] In the offline test working mode, the diesel engine simulation simulation module provides offline test signals for the diesel engine speed regulation system based on the simulated and output diesel engine working mode, and the diesel engine speed regulation system simulation simulation test module collects, displays and analyzes the working state parameters generated by the diesel engine speed regulation system according to the offline test signals in real time;

[0135] In the online monitoring working mode, the diesel engine simulation simulation module provides online monitoring signals for the diesel engine speed regulation system based on the simulated and output diesel engine working mode, and the diesel engine speed regulation system simulation simulation test module collects, records and displays each channel waveform generated by the diesel engine speed regulation system according to the online monitoring signals in real time.

[0136] The above embodiment only expresses several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An integrated simulation test system for a diesel engine governing system, characterized by, The diesel engine simulation module is configured to simulate and output a diesel engine working mode, and to provide offline test working parameters for the diesel engine speed regulation system based on the simulated diesel engine working mode in response to entering an offline test working mode, and to provide online monitoring working parameters for the diesel engine speed regulation system based on the simulated diesel engine working mode in response to entering an online monitoring working mode. The diesel engine speed regulation system simulation test module is configured to collect and display and analyze offline test working state parameters generated by the diesel engine speed regulation system according to the offline test working parameters in real time in response to entering the offline test working mode, and to collect and record and display online monitoring working state parameters generated by the diesel engine speed regulation system according to the online monitoring working parameters in real time in response to entering the online monitoring working mode. The diesel engine speed regulation system includes an electronic speed regulator and a mechanical speed regulator, and the diesel engine speed regulation system simulation test module includes an electronic speed regulator simulation test module and a mechanical speed regulator simulation test module. The diesel engine simulation module is configured to simulate and output a diesel engine working mode, and to provide offline test working parameters for the electronic speed regulator and the mechanical speed regulator based on the simulated diesel engine working mode in response to entering an offline test working mode, and to provide online monitoring working parameters for the electronic speed regulator and the mechanical speed regulator based on the simulated diesel engine working mode in response to entering an online monitoring working mode.

2. The integrated analog test system for a diesel speed control system of claim 1, wherein, The electronic speed regulator simulation test module is configured to collect and display and analyze offline test working state parameters generated by the electronic speed regulator according to the offline test working parameters in real time in response to entering the offline test working mode, and to collect and record and display online monitoring working state parameters generated by the electronic speed regulator according to the online monitoring working parameters in real time in response to entering the online monitoring working mode. The mechanical speed regulator simulation test module is configured to collect and display and analyze offline test working state parameters generated by the mechanical speed regulator according to the offline test working parameters in real time in response to entering the offline test working mode, and to collect and record and display online monitoring working state parameters generated by the mechanical speed regulator according to the online monitoring working parameters in real time in response to entering the online monitoring working mode. The diesel engine simulation module includes: A mode control unit configured to generate offline test signals or online monitoring signals in a corresponding working mode based on the simulated diesel engine working mode, wherein the offline test signals and the online monitoring signals each include an instruction signal and a synchronization signal, and the instruction signal contains offline test working parameters or online monitoring working parameters.

3. The integrated analog test system for a diesel speed control system of claim 1, wherein, A signal output control unit connected to the electronic speed regulator and the mechanical speed regulator through a lower computer module, and configured to output the instruction signal to the corresponding diesel engine speed regulation system through the lower computer module, and to output the synchronization signal to the lower computer module for controlling the output of the instruction signal. The instruction signal is sent one by one according to a message queue, and the synchronization signal is sent repeatedly at equal intervals. The diesel engine simulation module further includes: A mode recording unit configured to record changes in the diesel engine working mode.

4. The integrated analog test system for a diesel speed control system of claim 3, wherein, A mode change display unit configured to generate and display a change curve of the diesel engine working mode in real time based on the recorded changes in the diesel engine working mode. ​ ​ 5. The integrated analog test system for a diesel speed control system of claim 1, wherein, The diesel engine working mode simulated and outputted by the diesel engine simulation simulation module comprises one or more of the following in combination: Starting, stopping, tripping, closing, normal starting mode, emergency starting mode, idle starting mode, full speed starting mode, speed reduction speed regulation mode, constant speed speed regulation mode, speed up, speed down, at least one simulated rotating speed, and mechanical speed regulator rotating speed.

6. The integrated analog test system for a diesel speed control system of claim 2, wherein, The integrated simulation test system of the diesel engine speed regulation system further comprises: A parameter configuration module is configured to configure acquisition variables to be acquired from the electronic speed regulator and the mechanical speed regulator; the acquisition variables are configured as display variables or non-display variables.

7. The integrated analog test system for a diesel speed control system of claim 2, wherein, The electronic speed regulator simulation simulation test module comprises: A state parameter display unit is configured to generate a continuous change curve of an electronic speed regulator state parameter based on changes in the electronic speed regulator state parameter corresponding to the display variable; A channel waveform unit is configured to record and display channel waveforms of the electronic speed regulator; An electronic speed regulator fault analysis unit is configured to analyze and acquire a fault state of the electronic speed regulator based on the electronic speed regulator state parameter.

8. The integrated analog test system for a diesel speed control system of claim 2, wherein, The mechanical speed regulator simulation simulation test module comprises: A running state acquisition display unit is configured to acquire and display running states of the mechanical speed regulator in different rotating speeds, acceleration, and deceleration processes; A state change acquisition display unit is configured to acquire and display changes in an output angle of the mechanical speed regulator and state changes of a throttle rack; A curve recording unit is configured to record any one or more combinations of a speed curve, a current curve, and a rack curve of the mechanical speed regulator according to the running state and the state change; A mechanical speed regulator fault analysis unit is configured to determine whether the mechanical speed regulator has jitter or stall according to the running state and the state change.

9. The integrated analog test system for a diesel speed control system of claim 2, wherein, The integrated simulation test system of the diesel engine speed regulation system further comprises: A preset test software installed on an auxiliary analysis terminal; the auxiliary analysis terminal is connected with the electronic speed regulator; The preset test software is configured to read and write set parameters in the electronic speed regulator and record changes in working parameters of the electronic speed regulator.

10. An integrated simulation test method for a diesel engine speed control system, characterized by, The integrated simulation test system of the diesel engine speed regulation system according to any one of claims 1-9 comprises the following steps: The diesel engine simulation simulation module simulates and outputs a diesel engine working mode; The diesel engine simulation simulation module and the diesel engine speed regulation system simulation simulation test module are both responsive to entering an offline test working mode or an online monitoring working mode; In the offline test working mode, the diesel engine simulation simulation module provides offline test working parameters for the diesel engine speed regulation system based on the simulated and outputted diesel engine working mode, and the diesel engine speed regulation system simulation simulation test module acquires, displays, and analyzes working state parameters generated by the diesel engine speed regulation system according to the offline test working parameters in real time; In the online monitoring working mode, the diesel engine simulation simulation module provides online monitoring working parameters for the diesel engine speed regulation system based on the simulated and outputted diesel engine working mode, and the diesel engine speed regulation system simulation simulation test module records and displays online monitoring working state parameters generated by the diesel engine speed regulation system according to the online monitoring working parameters in real time.

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