CN112214001B - Control system testing method and storage medium - Google Patents
Control system testing method and storage medium Download PDFInfo
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- CN112214001B CN112214001B CN201910624994.7A CN201910624994A CN112214001B CN 112214001 B CN112214001 B CN 112214001B CN 201910624994 A CN201910624994 A CN 201910624994A CN 112214001 B CN112214001 B CN 112214001B
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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
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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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 discloses a test method and a storage medium of a control system, wherein the method comprises the following steps: acquiring test information; obtaining output information according to the test information and the constructed circuit model of the control object of the control system; and sending the output information to the control system, receiving information fed back by the control system based on the output information, taking the fed back information as the test information, and repeating the steps, wherein the output information obtained based on the information fed back by the control system reflects the test result aiming at the control system. The invention does not need to bind entity equipment of the control object for testing, greatly saves the testing cost and improves the testing efficiency.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a test method and a storage medium of a control system.
Background
The train power supply device is a current transformer device on a passenger electric locomotive, which can rectify a rated single-phase alternating current 860V into a direct current DC600V for output and provide a working power supply for air conditioners, ventilators, lighting and other equipment of passenger trains. At present, the Ministry of railways in China cancels power generation cars on a large scale and popularizes DC600V train power supply devices of electric locomotives in order to promote energy conservation and consumption reduction of railways and improve transportation benefits. The train power supply device of the electric locomotive is widely used on the electric locomotive, and meanwhile, a train power supply control system serving as a core control component of a train power supply cabinet also plays a role in phase control, system protection, external communication and other functions of the train power supply device.
The reliability of the train power supply control system directly influences the operation quality of the train power supply device of the electric locomotive, and has great influence on the comfort of passengers when the passengers ride in relation to the operation of loads such as air conditioners, ventilators, lighting and the like of the passengers. Therefore, in order to ensure the performance of the train power supply control system, it is necessary to develop a test method for the train power supply control system.
In the prior art, most of the test methods for the train power supply control system adopt binding test with the train power supply device, namely, arranging a tested passenger electric locomotive to be placed on a specified railway station track, and connecting an external output interface of the train power supply device on the locomotive with a ground load test bed for carrying out load test, thereby verifying the integrity of the train power supply control system.
However, the existing test methods have the disadvantages that: the cost of the load test bed of the train power supply cabinet is high; the train power supply device has long one-time load test time, large power consumption, higher test cost and lower test efficiency, and does not support continuous test; in the testing process, the tested locomotive needs to be placed on a specified railway track, so that certain influence is caused on locomotive scheduling.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in the prior art, the test method for the train power supply control system adopts the binding test with the train power supply device, the test cost is high, the test efficiency is low, and the dispatching of the locomotive is influenced in the test process.
In order to solve the technical problem, the invention provides a test method of a control system and a storage medium.
According to one aspect of the invention, a method of testing a control system includes:
an acquisition step of acquiring test information;
a test step, obtaining output information according to the test information and the constructed circuit model of the control object of the control system;
a loop step of sending the output information to the control system, receiving information fed back by the control system based on the output information, using the fed back information as the test information, and repeating the test step and the loop step,
wherein the output information derived based on the information fed back by the control system reflects the test results for the control system.
Preferably, the control system is a train power supply control system, the control object is a train power supply device,
in the obtaining step, obtaining and using initial information of a single-phase rectifier bridge in a main circuit for controlling a train power supply device as the test information;
in the testing step, obtaining output information of the train power supply device according to the testing information and the built main circuit model of the train power supply device;
in the circulating step, the output information is sent to the train power supply control system, information fed back by the train power supply control system based on the output information is received, the fed back information is used as the test information, and the testing step and the circulating step are repeated,
and the output information obtained based on the information fed back by the train power supply control system reflects the test result aiming at the train power supply control system.
Preferably, the feedback information and the test information are used for controlling a conduction angle of a single-phase rectifier bridge in a main circuit of the train power supply device, and the output information is an output voltage of the train power supply device. Thus, the test method of the train power supply control system comprises the following steps:
the method comprises the steps of obtaining and taking an initial conduction angle of a single-phase rectifier bridge in a main circuit for controlling a train power supply device as a test conduction angle;
a testing step, namely obtaining the testing output voltage of the train power supply device according to the testing conduction angle and the built main circuit model of the train power supply device;
a circulation step of sending the test output voltage to the train power supply control system, receiving a conduction angle fed back by the train power supply control system based on the test output voltage, taking the fed back conduction angle as the test conduction angle, and repeating the test step and the circulation step,
and the test output voltage obtained based on the conduction angle fed back by the train power supply control system reflects the test result aiming at the train power supply control system.
Preferably, the method for testing the train power supply control system further includes constructing a main circuit model of the train power supply device offline, and includes:
simplifying a main circuit of the train power supply device into a single-phase sine wave power supply circuit;
and taking a second order differential equation of the single-phase sine wave power supply circuit as a main circuit model of the train power supply device.
Preferably, the train power supply device is simplified into a single-phase sine wave power supply circuit, and includes:
simplifying a single-phase rectifier bridge and an alternating current side circuit thereof in a main circuit of the train power supply device into an alternating current power supply of the single-phase sine wave power supply circuit;
simplifying a filter reactor in a transformer in a main circuit of the train power supply device into an inductor of the single-phase sine wave power supply circuit;
simplifying a filter capacitor in a main circuit of the train power supply device into a capacitor of the single-phase sine wave power supply circuit;
and simplifying the load of the train power supply device into the resistor of the single-phase sine wave power supply circuit.
Preferably, the main circuit model of the train power supply device satisfies:
LC(d2uC/dt2)+L/R(duC/dt)+uC＝uS
wherein u isCTest output voltage, u, for the train power supplySIs the output of the single-phase rectifier bridgeVoltage, L is an inductance value of the inductor, C is a capacitance value of the capacitor, and R is a resistance value of the resistor.
Preferably, the testing step comprises:
obtaining the output voltage of the single-phase rectifier bridge according to the test conduction angle;
and inputting the inductance value, the capacitance value, the resistance value and the output voltage of the single-phase rectifier bridge into a main circuit model of the train power supply device to obtain the test output voltage of the train power supply device.
Preferably, the method for testing the train power supply control system further includes:
a working condition simulation step, adjusting the resistance value of the resistor to simulate that the train power supply device is in different working conditions,
and in the testing step, obtaining the test output voltage of the train power supply device according to the test conduction angle and the adjusted main circuit model of the train power supply device.
Preferably, in the circulating step, the testing step and the circulating step are repeated until a preset condition is satisfied.
Preferably, the preset conditions include: the number of times of repeating the test step and the cycle step is less than or equal to a preset cycle upper limit, and/or the absolute value of the difference between the test output voltage and the target voltage is less than or equal to a preset voltage.
Preferably, the number of times the test step and the cycle step are repeated, and/or the absolute value of the difference between the test output voltage and the target voltage reflects the test result for the train power supply control system.
According to another aspect of the invention, a storage medium has stored therein a computer program which, when executed by a processor, implements the method of testing a control system as described above.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
by applying the testing method of the control system, the control system is tested by means of the built simulation model of the control object, and the physical equipment of the control object is not required to be bound for testing, so that the testing cost is greatly saved, and the testing efficiency is improved. In addition, the test method of the train power supply control system tests the train power supply control system by means of the built train power supply device main circuit simulation model, and physical equipment of the train power supply device is not required to be bound for testing, so that the test cost is greatly saved, the test efficiency is improved, and the dispatching of locomotives is not influenced.
Drawings
The scope of the present disclosure may be better understood by reading the following detailed description of exemplary embodiments in conjunction with the accompanying drawings. Wherein the included drawings are:
fig. 1 shows a system connection diagram of a train power supply control system test device;
figure 2 shows a schematic diagram of the main circuit of the train power supply;
figure 3 shows a simplified schematic of the main circuit of the train power supply;
FIG. 4 is a flow chart illustrating a testing method of the train power supply control system according to an embodiment of the invention; and
fig. 5 is a flowchart illustrating a testing method of a train power supply control system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe in detail an implementation method of the present invention with reference to the accompanying drawings and embodiments, so that how to apply technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
The existing test method of the train power supply control system has the defects that: the cost of the load test bed of the train power supply cabinet is high; the train power supply device has long one-time load test time, large power consumption, higher test cost and lower test efficiency, and does not support continuous test; in the testing process, the tested locomotive needs to be placed on a specified railway track, so that certain influence is caused on locomotive scheduling. In order to solve the above technical problem, an embodiment of the present invention provides a test method for a control system.
The test method of the control system of the embodiment of the invention mainly comprises an acquisition step, a test step and a circulation step.
In the acquiring step, test information is acquired.
In the testing step, output information is obtained according to the testing information and the constructed circuit model of the control object of the control system.
And in the circulating step, the output information is sent to the control system, the information fed back by the control system based on the output information is received, the fed back information is used as the test information, and the testing step and the circulating step are repeated. In this way, the output information derived based on the information fed back by the control system reflects the test results for the control system.
Here, the control system as the object to be measured may be an inverter, a four-quadrant converter, a charger, or the like.
By applying the test method of the control system of the embodiment of the invention, the control system is tested by means of the built simulation model of the control object, and the physical equipment of the control object is not required to be bound for testing, so that the test cost is greatly saved and the test efficiency is improved.
The following description will be made by taking a test method of a train power supply control system as an example. The control object of the train power supply control system is a train power supply device. The test method of the embodiment of the invention is realized by a control computer of the test device.
Fig. 1 shows a system connection diagram of a train power supply control system test device. As shown in fig. 1, the testing device for the train power supply control system comprises a testing cabinet, a control computer and an ac/dc power supply. An external alternating current power supply provides a direct current power supply for the test case through an alternating current/direct current power supply, and the test case is connected with the control computer. The test case collects the output signal of the external train power supply control system and transmits the data to the control computer for calculation and display. And the control computer runs the simulation model of the train power supply device in real time according to the working state of the current train power supply control system and the test requirement, issues an operation instruction to the test case and outputs a corresponding test signal to the train power supply control system. The train power supply control system testing device has the advantages of complete testing items, good compatibility and convenience and rapidness in testing, can be used for regularly checking and testing the train power supply control system, and improves the operation reliability of the train power supply control system. Here, the train power supply device (i.e., the train power supply cabinet) is a converter device on a passenger electric locomotive, which can rectify a rated single-phase alternating current 860V into a direct current DC600V for output, and provide a working power supply for air conditioners, ventilators, lighting and other equipment of passenger trains.
The test method of the train power supply control system comprises the step of constructing a main circuit model of the train power supply device. Before describing the method for constructing the main circuit model of the train power supply device in detail, first, the main circuit of the train power supply device will be described with reference to fig. 2.
The train power supply device is provided with two completely independent power supply systems, and principle circuits of the power supply systems are completely the same. Fig. 2 shows a schematic diagram of the main circuit of one of the power supply systems of the train power supply. As shown in fig. 2, an ac input voltage 860V is passed through the vacuum contactor 13KM and the fast fuse 11FU to the single-phase rectifier bridge and the current sensor 11SC, and a dc voltage 600V is outputted through the filter reactor 13L in the transformer and the filter capacitor 19C in the cabinet. An overvoltage absorption circuit composed of a resistor 21R, a capacitor 17C and a voltage dependent resistor 13RV and a synchronous transformer for control are connected in parallel on the alternating current side of the rectifier bridge. Meanwhile, when an element on the alternating current side breaks down and is short-circuited, the quick fuse can be quickly fused for protection, and the main circuit is broken, so that the further expansion of the fault is avoided. Two ends of each element in the rectifier bridge are connected with RC in parallel and used for absorbing phase-change overvoltage of the element. The dc side also has a no-load resistor R51 and a current sensor 11SC for detection, and the ground voltage dividing resistors 1R1, 1R2 and the voltage sensor 13SV are used for ground protection. And voltage sensors (not shown) respectively provide voltage feedback signals for the two groups of train power supply control system chassis.
The method for constructing the main circuit model of the train power supply device off line in the embodiment of the invention mainly comprises the steps of simplification and construction.
In the simplification step, the main circuit of the train power supply device is simplified into a single-phase sine wave power supply circuit.
Specifically, corresponding to the main circuit diagram in fig. 2, the single-phase rectifier bridge and the ac-side circuit are simplified to an ac power source u, except for the synchronous transformer, the voltage and current sensor, and the like in the diagramSThe filter reactor 13L in the transformer is simplified as a circuit inductance L, the filter capacitor 19C is simplified as a circuit capacitance C, and a load (not shown) of the train power supply device is simplified as a circuit resistance R.
The simplified main circuit of the train power supply device is a single-phase sine wave power supply circuit as shown in fig. 3, and the circuit is composed of the simplified alternating current power supply uSThe circuit comprises a circuit inductor L, a circuit capacitor C and a resistor R. As shown in fig. 3, the single-phase sinusoidal power supply circuit, which is a simplified main circuit of the train power supply device, is a second-order circuit.
In the construction step, a second order differential equation of the single-phase sine wave power supply circuit is used as a main circuit model of the train power supply device. Specifically, the method comprises the following steps:
according to the simplified train power supply apparatus main circuit shown in fig. 3, the following expressions can be listed:
iL＝iC+iR (1)
uL＝uS-uC (2)
iL＝1/L∫uLdt (3)
iC＝CduC/dt (4)
iR＝uC/R (5)
in combination of the above formulas (1) to (5), it is possible to obtain:
1/L∫uLdt＝CduC/dt+iR＝uC/R (6)
arranging to obtain the output voltage u of the train power supply deviceCSecond order differential equation of (1):
LC(d2uC/dt2)+L/R(duC/dt)+uC＝uS (7)
wherein iLIs the inductor current, i, of the inductor in FIG. 3CIs the capacitance current, i, of the capacitor of FIG. 3RIs the current of the resistor in FIG. 3, uLIs the inductor voltage, u, of the inductor in FIG. 3CThe capacitor voltage of the capacitor in FIG. 3, i.e. the output voltage Vout, u of the train power supplySThe output voltage of the single-phase rectifier bridge is L is the inductance of the inductor in FIG. 3, C is the capacitance of the capacitor in FIG. 3, and R is the resistance of the resistor in FIG. 3.
The second order differential equation (equation 7) is a main circuit model of the constructed train power supply device.
Fig. 4 is a schematic flow chart illustrating a testing method of the train power supply control system according to the embodiment of the invention. As shown in fig. 4, the test method of the train power supply control system of the present embodiment mainly includes steps S101 to S103. Specifically, the method comprises the following steps:
in the acquisition step of step S101, an initial conduction angle of a single-phase rectifier bridge in a main circuit for controlling a train power supply apparatus is acquired and used as a test conduction angle.
Specifically, the initial conduction angle may be obtained by a human input device such as a mouse or a keyboard, and may also be a conduction angle (also referred to as an opening angle) output by the train power supply system to be tested to the actual train power supply device. The initial conduction angle is taken as a test conduction angle.
In the actual control process, the train power supply system controls the conduction angle of a switch element inside a single-phase rectifier bridge of the train power supply device by using the conduction angle, so that the output voltage of the train power supply device is controlled.
In the test step of step S202, a test output voltage of the train power supply device is obtained according to the test conduction angle and the constructed main circuit model of the train power supply device.
Specifically, first, the output voltage of the single-phase rectifier bridge is obtained according to the test conduction angle. Then. And inputting the inductance value, the capacitance value, the resistance value and the output voltage of the single-phase rectifier bridge into a main circuit model of the train power supply device to obtain the test output voltage of the train power supply device.
In the circulation step of step S203, the test output voltage is sent to the train power supply control system, the conduction angle fed back by the train power supply control system based on the test output voltage is received, the fed back conduction angle is used as the test conduction angle, and the test step and the circulation step are repeated.
Specifically, after the test output voltage obtained in step S202 is sent to the train power supply control system as the object to be tested, the train power supply control system calculates a difference between the received test output voltage and the target voltage, and determines the conduction angle of the main circuit model input to the train power supply device in the next round according to the difference. It should be noted here that the conduction angle is calculated according to an internal algorithm of the train power supply control system.
After the train power supply control system determines the conduction angle of the next round, the conduction angle is fed back to the control computer, the control computer takes the conduction angle fed back by the train power supply system as a test conduction angle and continues to execute the step S202 and the step S203, and in the next round of test process, the test output voltage of the train power supply device obtained in the step S202 reflects the test result aiming at the train power supply control system.
In a preferred embodiment of the invention, the test criterion may be an absolute value of a difference (e.g. 30V) between a test output voltage of the train power supply and a target voltage. If the absolute value corresponding to multiple cycles tends to converge and can finally converge to be lower than the preset voltage, the performance of the train power supply control system of the tested object can be proved to be good. On the contrary, if the absolute value corresponding to multiple cycles tends to diverge or is difficult to converge to be lower than the preset voltage, it can be proved that the performance of the train power supply control system of the tested object is deficient, and technicians are required to debug the internal algorithm or other components of the train power supply control system.
In another preferred embodiment of the invention, the test criterion may be the time it takes for the absolute value of the corresponding number of cycles to converge (e.g. 4s), or may be scaled to the number of tests that have been performed before convergence is reached (the number of repeated cycles). If the number of times is less than or equal to the upper limit of the preset cycle number, the performance of the train power supply control system of the tested object can be proved to be good. On the contrary, if the number of times is greater than the preset upper limit of the number of times of circulation, it can be proved that the performance of the train power supply control system of the tested object is deficient, and technicians are required to debug the internal algorithm or other components of the train power supply control system.
Thus, in the circulation step, the test step and the circulation step are repeated until the preset condition is satisfied. In particular, the preset conditions include: the number of times of repeating the test step and the cycle step is less than or equal to a preset cycle upper limit, and/or the absolute value of the difference between the test output voltage and the target voltage is less than or equal to a preset voltage. And repeating the test step and the cycle step, and/or testing the absolute value of the difference value of the output voltage and the target voltage to reflect the test result of the train power supply control system.
In another preferred embodiment of the present invention, the test method of the train power supply control system further includes a working condition simulation step.
In the working condition simulation step, the resistance value of the resistor is adjusted to simulate that the train power supply device is in different working conditions. In the testing step, the testing output voltage of the train power supply device is obtained according to the testing conduction angle and the adjusted main circuit model of the train power supply device.
In this embodiment, the control computer adjusts the load of the train power supply device by adjusting the resistance of the simplified main circuit, so as to model different working conditions of the train power supply device. Here, simulating various operating conditions in which the train power supply apparatus is located includes: and the working conditions of half load, full load and the like are adopted to comprehensively detect the integrity of the train power supply control system.
A method for testing a train power supply control system according to an embodiment of the present invention is described below with reference to fig. 5.
Firstly, a driver manually inputs a plurality of rows of logic instructions in a driver console, after receiving a correct instruction, a train power supply control system sends a conduction angle (opening angle) instruction to a control computer, the control computer inputs the received conduction angle to a main circuit model of a train power supply device to obtain the output voltage of the train power supply device, and then the control computer sends the calculated output voltage to the train power supply control system. The train power supply control system compares the received output voltage with a target voltage (e.g., DC600V), adjusts the conduction angle command according to the absolute value of the difference between the two, and sends the adjusted conduction angle command to the control computer. And the control computer inputs the received conduction angle into a main circuit model of the train power supply device again, sends the calculated output voltage to a train power supply control system, circulates the operation to form closed-loop control, and finally enables the train power supply device to stably output the DC600 +/-30V voltage.
By applying the test method of the train power supply control system provided by the embodiment of the invention, the train power supply control system is tested by means of the built train power supply device main circuit simulation model, and the test is carried out without binding the physical equipment of the train power supply device, so that the test cost is greatly saved, the test efficiency is improved, and the dispatching of locomotives is not influenced. In addition, the test of the train power supply control system of the embodiment of the invention breaks through the original test method, and various working conditions of the train power supply control system are simulated through the simulation model of the running of the train power supply control system test device so as to comprehensively detect the integrity of the equipment.
The embodiment of the invention also provides a computer readable storage medium. The computer-readable storage medium has stored therein a computer program which, when executed by a processor, implements the method of testing the control system described above.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A method of testing a control system, comprising:
an acquisition step of acquiring test information;
a test step, obtaining output information according to the test information and the constructed circuit model of the control object of the control system;
a loop step of sending the output information to the control system, receiving information fed back by the control system based on the output information, using the fed back information as the test information, and repeating the test step and the loop step,
wherein output information derived based on information fed back by the control system reflects test results for the control system;
wherein the control system is a train power supply control system, the control object is a train power supply device,
in the obtaining step, obtaining and using initial information of a single-phase rectifier bridge in a main circuit for controlling a train power supply device as the test information;
in the testing step, obtaining output information of the train power supply device according to the testing information and the built main circuit model of the train power supply device;
in the circulating step, the output information is sent to the train power supply control system, information fed back by the train power supply control system based on the output information is received, the fed back information is used as the test information, and the testing step and the circulating step are repeated,
wherein output information obtained based on information fed back by the train power supply control system reflects a test result for the train power supply control system;
the feedback information and the test information are used for controlling the conduction angle of a single-phase rectifier bridge in a main circuit of the train power supply device, and the output information is the output voltage of the train power supply device;
wherein, still include off-line and construct the main circuit model of train power supply unit, include:
simplifying a main circuit of the train power supply device into a single-phase sine wave power supply circuit; and
taking a second order differential equation of the single-phase sine wave power supply circuit as a main circuit model of the train power supply device,
wherein, will train power supply unit's main circuit simplifies to single-phase sine wave power supply circuit, includes:
simplifying a single-phase rectifier bridge and an alternating current side circuit thereof in a main circuit of the train power supply device into an alternating current power supply of the single-phase sine wave power supply circuit;
simplifying a filter reactor in a transformer in a main circuit of the train power supply device into an inductor of the single-phase sine wave power supply circuit;
simplifying a filter capacitor in a main circuit of the train power supply device into a capacitor of the single-phase sine wave power supply circuit;
and simplifying the load of the train power supply device into the resistor of the single-phase sine wave power supply circuit.
2. The method according to claim 1, wherein the main circuit model of the train power supply device satisfies:
LC(d2uC/dt2)+L/R(duC/dt)+uC＝uS
wherein u isCTest output voltage, u, for the train power supplySAnd the output voltage of the single-phase rectifier bridge is L, the inductance value of the inductor is C, the capacitance value of the capacitor is C, and the resistance value of the resistor is R.
3. The method of claim 2, wherein the testing step comprises:
obtaining the output voltage of the single-phase rectifier bridge according to the test conduction angle;
and inputting the inductance value, the capacitance value, the resistance value and the output voltage of the single-phase rectifier bridge into a main circuit model of the train power supply device to obtain the test output voltage of the train power supply device.
4. The method of claim 2, further comprising:
a working condition simulation step, adjusting the resistance value of the resistor to simulate that the train power supply device is in different working conditions,
and in the testing step, obtaining the test output voltage of the train power supply device according to the test conduction angle and the adjusted main circuit model of the train power supply device.
5. The method according to any one of claims 2 to 4, wherein in the circulating step, the testing step and the circulating step are repeated until a preset condition is satisfied,
the preset conditions include: the number of times of repeating the test step and the cycle step is less than or equal to a preset cycle upper limit, and/or the absolute value of the difference between the test output voltage and the target voltage is less than or equal to a preset voltage.
6. The method of claim 5, wherein the number of times the testing step and the cycling step are repeated, and/or the absolute value of the difference between the test output voltage and the target voltage, reflects the test results for the train power supply control system.
7. A storage medium, characterized in that a computer program is stored therein, which computer program, when being executed by a processor, realizes a test method of a control system according to any one of claims 1 to 6.
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