An alternating current simulation control device for electrical connection clamp

Abstract

The present invention discloses an alternating current simulation control device for an electrical connection clamp, comprising: a computer control device, an alternating current curve conversion driver and a current booster; the computer control device is electrically connected to the alternating current curve conversion driver, and is used to generate a current curve conversion control signal according to traction current curve information and send it to the alternating current curve conversion driver; the alternating current curve conversion driver is also electrically connected to the current booster, and is used to convert the traction current curve information into alternating current curve information according to the current curve conversion control signal, and to generate a booster drive signal according to the alternating current curve information and send it to the current booster; the current booster is used to connect the electrical connection clamp, and is specifically used to simulate and generate an alternating current according to the booster drive signal and pass it into the electrical connection clamp. The technical solution of the present invention aims to solve the problem in the prior art that the size of the alternating current is uncontrollable, resulting in the inability to accurately measure the temperature state of the electrical connection clamp.

Description

Technical Field

[0001] The invention relates to the technical field of railway power supply, in particular to an alternating current simulation control device for an electrical connection clamp. Background Art

[0002] The overhead contact network is a special form of power transmission line erected above the railway line to supply power to electric locomotives. Once the overhead contact network is powered off or has poor contact with the train pantograph, the traction current will be blocked, affecting the power supply of the electric locomotive. Therefore, in order to ensure the smooth flow of traction current, electrical connection clamps are installed at the overhead contact network, traction substation, and the joints of each anchor section of the overhead contact network. The electrical connection clamps are usually connected between the overhead contact network and the feeder, and between the wires in the overhead contact network, to play a role in diverting current.

[0003] However, electric locomotives have large traction power, heavy traction tonnage, high speed and strong impact force, which can easily lead to loosening of the electrical connection clamps. In addition, the working environment of the contact network is harsh, which can easily lead to oxidation and poor contact of the electrical connection clamps due to environmental pollution, and even cause the electrical connection clamps to heat up, burn out and power outage. What's more, due to the poor contact of the electrical connection clamps, the current often flows through other equipment (such as suspension strings, load-bearing cables and positioners), causing non-current-conducting equipment to be burned. The above problems of the electrical connection clamps have greatly affected the power supply safety of the contact network.

[0004] In order to ensure the power supply safety of the contact network, it is urgent to monitor and warn the electric connection wire clamp before the fault occurs. According to the relevant certification standards, the most ideal monitoring method for the electric connection wire clamp is to directly measure the temperature state of the electric connection wire clamp around the clock, so a temperature sensor that can directly measure the temperature of the electric connection wire clamp is needed. The temperature sensor needs to be adjusted before use, but the normal working voltage of the contact network is relatively large and to ensure the efficiency and safety of driving, the contact network is not allowed to be powered off under normal circumstances, so the temperature sensor cannot be directly applied to the real contact network for adjustment. However, in order to reduce safety risks, it is necessary to obtain first-hand test data of the temperature sensor and discover hidden dangers, which requires a large number of repeated simulations of the operating environment of the real contact network. In the operating environment of the real contact network, the contact resistance value of the electric connection wire clamp, the duration of the current passing through, and the magnitude of the alternating current passing through are the main factors affecting the accurate monitoring of the temperature sensor. Among them, the contact resistance of the electric connection wire clamp and the time of the current passing through are controllable factors, but the magnitude of the alternating current passing through the electric connection wire clamp is uncontrollable and difficult to simulate.

[0005] Precisely because the size of the alternating current is uncontrollable, it is difficult to simulate the temperature of the electrical connection wire clamp in the real contact network in the relevant technologies. The temperature sensor is simply adjusted by conventional methods such as high and low temperature boxes or oil bath constant temperature baths. The above-mentioned temperature sensor adjustment method will have the problem that the influence of factors such as non-equipotential, strong electromagnetic fields, and alternating large current eddy current effect disturbances on the temperature sensor is ignored. The result is that when the temperature sensor is installed on the real electrical connection wire clamp, the temperature measurement may be inaccurate, and it is not conducive to troubleshooting the safety hazards of the electrical connection wire clamp; there may even be a situation where the electrical connection wire clamp melts and the temperature sensor does not alarm, thereby endangering driving safety. Summary of the invention

[0006] The present invention provides an alternating current simulation control device for an electrical connection clamp, aiming to solve the problem in the prior art that it is difficult to simulate the alternating current size of the uncontrollable electrical connection clamp, resulting in the inability to simulate the operating environment of a real contact network.

[0007] To achieve the above object, the present invention provides an alternating current simulation control device for an electrical connection clamp, comprising:

[0008] Computer control equipment, alternating current curve conversion driver and current booster; wherein,

[0009] The computer control device stores traction current curve information;

[0010] The computer control device is electrically connected to the alternating current curve conversion driver, and is used to generate a current curve conversion control signal according to the traction current curve information and send it to the alternating current curve conversion driver;

[0011] An alternating current curve conversion driver, used for converting traction current curve information into alternating current curve information according to a current curve conversion control signal;

[0012] The alternating current curve conversion driver is electrically connected to the current booster, and is also used to generate a booster drive signal according to the alternating current curve information and send it to the current booster;

[0013] The current booster is used to connect the electrical connection clamp and is used to simulate and generate an alternating current according to a current booster driving signal and pass the alternating current into the electrical connection clamp.

[0014] Preferably, in the above-mentioned alternating current simulation control device, the current booster and the electrical connection clamp form a closed loop through a cable connection bar; the above-mentioned alternating current simulation control device also includes:

[0015] A current sensor connected to the cable connection row between the current booster and the electrical connection clamp, for sensing the alternating current emitted by the current booster;

[0016] The current sensor is also electrically connected to the alternating current curve conversion driver, and is used to feed back the sensed alternating current to the alternating current curve conversion driver.

[0017] Preferably, in the above-mentioned alternating current simulation control device, the alternating current curve conversion driver comprises:

[0018] Communication control interface for accessing computer control equipment;

[0019] A sensor feeder interface for connecting a current sensor;

[0020] A drive output interface for connecting a current booster;

[0021] And, a conversion drive circuit electrically connected to the communication control interface, the sensor feeder interface and the drive output interface respectively.

[0022] Preferably, in the above-mentioned alternating current simulation control device, the conversion drive circuit includes:

[0023] A signal converter connected to the communication control interface;

[0024] A signal comparator connected to the sensor feeder interface and the signal converter respectively;

[0025] A drive controller is respectively connected to the signal converter and the signal comparator, wherein the drive controller is also electrically connected to the drive output interface.

[0026] Preferably, in the above-mentioned alternating current simulation control device, the computer control device includes:

[0027] An information storage device and a processing controller electrically connected to the information storage device; wherein,

[0028] The information memory is used to store traction current curve information;

[0029] The processing controller is also electrically connected to the alternating current curve conversion driver, and is used to generate a current curve conversion control signal according to the traction current curve information stored in the information memory, and send the signal to the alternating current curve conversion driver.

[0030] Preferably, the above-mentioned alternating current simulation control device further includes:

[0031] An AC power source electrically connected to the computer control device, the AC current curve conversion driver and the current booster respectively;

[0032] and, a power protector electrically connected to the AC power source;

[0033] The power protector includes: a leakage circuit breaker connected to the current input end of the AC power supply; and an air switch connected between the AC power supply and the leakage circuit breaker.

[0034] Preferably, in the above-mentioned alternating current simulation control device, the current booster further comprises:

[0035] A thermal element connected between the AC power source and the current booster circuit;

[0036] And, a reed type thermal protection switch is arranged on the housing of the current booster.

[0037] Preferably, the above-mentioned alternating current simulation control device further includes:

[0038] A three-dimensional cabinet containing computer control equipment, an alternating current curve conversion driver and a current booster;

[0039] And, rolling casters connected to the bottom surface of the three-dimensional cabinet.

[0040] Preferably, the above-mentioned alternating current simulation control device also includes a heat dissipation component, which includes: a cabinet temperature sensor arranged inside the three-dimensional cabinet; a cabinet temperature controller electrically connected to the cabinet temperature sensor; and a heat dissipation fan electrically connected to the cabinet temperature controller.

[0041] Preferably, the above-mentioned alternating current simulation control device further comprises: a grounding protection terminal respectively connected to the computer control device, the alternating current curve conversion driver and the current booster.

[0042] The alternating current simulation control device for an electrical connection clamp provided by the technical solution of the present invention comprises a computer control device, an alternating current curve conversion driver and a current booster. The working process of the alternating current simulation control device is as follows:

[0043] First, the computer control device loads the traction current curve information, which can be obtained through the traction substation microcomputer monitoring system. The computer control device can generate a current curve conversion control signal based on the traction current curve information and send it to the alternating current curve conversion driver. The current curve conversion control signal is used to control the alternating current curve conversion driver to convert the above traction current curve into alternating current curve information; wherein, the current curve conversion control signal includes the above traction current curve information, relevant timing and frequency parameters during the test, so that the alternating current curve conversion driver can convert the current curve. After the alternating current curve conversion driver converts the traction current curve information into the alternating current curve information, it will generate a current booster drive signal based on the alternating current curve information. The current booster drive signal is used to control the current booster to simulate and generate an alternating current matching the above alternating current curve information, and pass it into the electrical connection clamp, so as to simulate the real alternating current passing through the electrical connection clamp, that is, simulate the temperature of the electrical connection clamp in the real contact network, and then facilitate the accurate adjustment of the temperature sensor used to measure the temperature of the electrical connection clamp.

[0044] The alternating current simulation control device for the electric connection clamp provided by the technical solution of the present invention stores real traction current curve information. In the real power scene, the contact network guides the current through the electric connection clamp, and introduces the traction current generated by the substation into the electric locomotive, thereby realizing the traction operation of the electric locomotive. Therefore, the alternating current flowing through the electric connection clamp is generated because the traction current flows through. In this way, the computer control device stores the traction current curve information and combines the corresponding parameters to control the alternating current curve conversion driver to convert the traction current curve information into alternating current curve information. The alternating current curve information is close to the alternating current curve introduced into the electric connection clamp in the real power scene. In this way, the current booster can restore the generated alternating current most realistically according to the above-mentioned alternating current curve information under the control of the alternating current curve conversion driver, and pass it into the electric connection clamp. Thereby overcoming the defects of the prior art that the size of the alternating current is uncontrollable and the operating environment of the real contact network cannot be simulated. Ultimately, interferences such as non-equipotential, strong electromagnetic fields, and alternating large current eddy current effects caused by the existing temperature sensor adjustment method are eliminated, and the temperature changes when a vehicle passes through the electrical connection at the county level in the contact network are most realistically simulated, thereby improving the adjustment accuracy of the temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0046] Figure 1 It is a structural schematic diagram of an alternating current simulation control device for an electrical connection clamp provided by an embodiment of the present invention;

[0047] Figure 2 yes Figure 1 A schematic structural diagram of a conversion drive circuit provided by the illustrated embodiment;

[0048] Figure 3 yes Figure 1 A schematic diagram of the structure of a power supply protector provided in the illustrated embodiment;

[0049] Figure 4 yes Figure 1 The illustrated embodiment provides a schematic structural diagram of a heat dissipation assembly.

[0050] Description of Figure Numbers:

[0051]

[0052]

[0053] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0056] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] The alternating current simulation control device for an electrical connection clamp provided in the following embodiments of the present application needs to solve the following technical problems:

[0060] The magnitude of the alternating current flowing through the electrical connection clamp in the real contact network is often uncontrollable and difficult to simulate and restore. According to Joule's law: Q = I 2 *R*t, the temperature state of the electrical connection clamp is affected by the magnitude of the alternating current, the duration of the current passing through, and the contact resistance. Due to the uncontrollable magnitude of the alternating current, the existing technology cannot truly simulate the actual temperature state of the electrical connection clamp, and thus cannot truly simulate the actual operating environment of the contact network. In the research and development and generation stage of the temperature sensor used to measure the temperature of the electrical connection clamp, the adjustment effect of the temperature sensor is not good because the temperature state of the electrical connection clamp cannot be truly simulated. In the related temperature sensor adjustment technology, the method of using a high and low temperature box or an oil bath constant temperature bath to adjust the temperature sensor is prone to the problem that the influence of unstable factors (such as non-equipotential, strong electromagnetic field, and alternating large current eddy current effect disturbance, etc.) on the temperature sensor is ignored. In this way, the temperature sensor may be applied to the real electrical connection clamp, which may result in inaccurate temperature measurement, and is not conducive to troubleshooting the safety hazards of the electrical connection clamp; there may even be a situation where the electrical connection clamp is fused and the temperature sensor does not alarm, thereby endangering driving safety.

[0061] See also Figure 1 In order to solve the above problems, the following embodiments of the present invention provide an alternating current simulation control device for an electrical connection clamp to solve the above problems.

[0062] See Figure 1 , Figure 1 A schematic diagram of the structure of an alternating current simulation control device for an electrical connection clamp provided by an embodiment of the present invention, such as Figure 1 As shown, the alternating current simulation control device comprises:

[0063] Computer control device 1, alternating current curve conversion driver 2 and current booster 3; wherein, computer control device 1 stores traction current curve information; in a real power scenario, the contact network conducts current through the electrical connection clamp 4, thereby introducing the traction current generated by the substation into the electric locomotive to realize the traction operation of the electric locomotive. Therefore, the alternating current flowing through the electrical connection clamp 4 is generated in response to the traction current stress. In this way, by combining the traction current curve information with the relevant parameters of the contact network and the electrical connection clamp 4, the alternating current curve of the electrical connection clamp 4 at that time can be restored.

[0064] The computer control device 1 is electrically connected to the alternating current curve conversion driver 2, and is used to generate a current curve conversion control signal according to the traction current curve information and send it to the alternating current curve conversion driver 2. The current curve conversion control signal is used to control the alternating current curve conversion driver 2 to convert the traction current curve information into the alternating current curve information. The current curve conversion control signal includes the above-mentioned traction current curve information, related timing and frequency test parameters, so that the alternating current curve conversion driver 2 can convert the current curve. The computer control device 1 is an industrial control computer, which is electrically connected to the alternating current curve conversion driver 2 through an RS232 / RS485 communication interface.

[0065] The alternating current curve conversion driver 2 is used to convert the traction current curve information into the alternating current curve information according to the current curve conversion control signal; because the alternating current flowing through the electrical connection clamp 4 is generated in response to the traction current stress, after obtaining the traction current curve information, combined with the corresponding test parameters, the alternating current curve information can be generated through the above traction current curve information, thereby simulating the alternating current flowing through the electrical connection clamp 4 in the real scene in the most realistic way.

[0066] The alternating current curve conversion driver 2 is electrically connected to the current booster 3, and is also used to generate a current booster drive signal according to the alternating current curve information and send it to the current booster 3. The current booster drive signal is used to control the current booster 3 to simulate and generate an alternating current according to the above alternating current curve information. The current booster drive signal includes level control instructions corresponding to different current values. For example, the level of the current booster drive signal is a high level, which means that the current booster 3 increases the amplitude of the generated alternating current; the level of the current booster drive signal is a low level, which means that the current booster 3 reduces the corresponding amplitude of the alternating current.

[0067] The current booster 3 is used to connect the electrical connection clamp 4, and is used to simulate and generate an alternating current according to the booster drive signal and pass it into the electrical connection clamp 4. The current booster 3 can generate an alternating current of 0-3KA, so as to adapt to different types of electrical connection clamps 4. Among them, the rated power of the current booster 3 in the embodiment of the present application is 3KW. The temperature condition of the electrical connection clamp 4 is measured using a temperature sensor 13.

[0068] The alternating current simulation control device for the electrical connection clamp 4 provided in the embodiment of the present invention comprises a computer control device 1, an alternating current curve conversion driver 2 and a current booster 3. The working process of the alternating current simulation control device is as follows: First, the computer control device 1 loads the traction current curve information, which can be obtained through the traction substation microcomputer monitoring system. The computer control device 1 can generate a current curve conversion control signal based on the traction current curve information and send it to the alternating current curve conversion driver 2. The current curve conversion control signal is used to control the alternating current curve conversion driver 2 to convert the above traction current curve into alternating current curve information. After the alternating current curve conversion driver 2 converts the traction current curve information into alternating current curve information, it will generate a current booster drive signal based on the alternating current curve information. The current booster drive signal is used to control the current booster 3 to simulate and generate an alternating current matching the above-mentioned alternating current curve information, and pass it into the electrical connection clamp 4, so as to simulate the actual alternating current passing through the electrical connection clamp 4, that is, simulate the temperature of the electrical connection clamp 4 in the actual contact network, thereby facilitating the accurate adjustment of the temperature sensor 13 used to measure the temperature of the electrical connection clamp 4.

[0069] In summary, the alternating current simulation control device for the electrical connection clamp provided in the embodiment of the present invention stores real traction current curve information. In the real power scene, the contact network conducts the current through the electrical connection clamp, and introduces the traction current generated by the substation into the electric locomotive, thereby realizing the traction operation of the electric locomotive. Therefore, the alternating current flowing through the electrical connection clamp is generated because the traction current flows through. In this way, the computer control device 1 stores the traction current curve information and combines the corresponding test parameters, so that it can control the alternating current curve conversion driver 2 to convert the traction current curve information into alternating current curve information. The alternating current curve information is close to the alternating current curve introduced into the electrical connection clamp 4 in the real power scene. In this way, the current booster 3 can be under the control of the alternating current curve conversion driver 2. Through the above-mentioned alternating current curve information, the most realistic restoration generates alternating current and passes it into the electrical connection clamp 4 for testing. In this way, the technical solution of the present application overcomes the defects in the prior art that the size of the alternating current cannot be controlled and cannot simulate the operating environment of the real contact network; ultimately, interference such as non-equipotential, strong electromagnetic field and alternating large current eddy current effect that appear in the existing temperature sensor adjustment method is eliminated, and then the temperature change of the electrical connection wire clamp 4 in the contact network when a vehicle passes is simulated as closely as possible, thereby improving the adjustment accuracy of the corresponding temperature sensor 13.

[0070] Among them, Figure 1 As shown, in the alternating current simulation control device provided in the embodiment of the present application, the current booster 3 is connected to the electrical connection clamp 4 through the cable connection row 5, as shown in FIG. Figure 1As shown, the current booster 3 and the electrical connection clamp 4 form a closed loop through the cable connection bar 5; the cable connection bar 5 is made of high-quality copper soft busbar, which can withstand an alternating current of not less than 3KA and adapt to the access of various types of electrical connection clamps 4. In addition, the alternating current simulation control device also includes:

[0071] The current sensor 6 connected to the cable connection row 5 between the current booster 3 and the electrical connection clamp 4 is used to sense the alternating current emitted by the current booster 3. The rated alternating current collected by the current sensor 6 is not less than 3KA, so that the current sensor 6 can quickly and accurately collect the alternating current signal at the output end of the current booster 3.

[0072] The current sensor 6 is also electrically connected to the alternating current curve conversion driver 2, and is used to feed back the sensed alternating current to the alternating current curve conversion driver 2. The current sensor 6 has an output feeder interface, and the current sensor 6 is electrically connected to the alternating current curve conversion driver 2 through the output feeder interface.

[0073] In the technical solution provided in the embodiment of the present application, the alternating current emitted by the current booster 3 may deviate from the alternating current value corresponding to a certain moment of the original alternating current curve. If the deviation is large, the temperature state of the restored electrical connection clamp 4 may deviate greatly from the actual temperature state. Therefore, a current sensor 6 is set to sense the alternating current emitted by the current booster 3, and then feed it back to the alternating current curve conversion driver 2. The alternating current curve conversion driver 2 can compare the alternating current to ensure that the alternating current output by the current booster 3 is consistent with the traction current curve loaded by the computer control device 1, so as to achieve the purpose of monitoring and correcting the alternating current curve.

[0074] in, Figure 1 In the alternating current simulation control device provided in the illustrated embodiment, the alternating current curve conversion driver 2 comprises:

[0075] The communication control interface 201 used for accessing the computer control device 1; the communication control interface 201 is a RS232 / RS245 communication control interface, which can be compatible with the RS232 / RS235 communication interface of the computer control device 1, thereby improving the stability of communication control.

[0076] The sensor feeder interface 202 is used to access the current sensor 6; the sensor feeder interface 202 is used to access the current sensor 6 through the feeder, so that when the current booster 3 is working, the alternating current data collected by the current sensor 6 is obtained in time through the sensor feeder interface 202.

[0077] A drive output interface 203 for connecting the current booster 3; the drive output interface 203 is connected to the current booster 3, so that the alternating current curve conversion driver 2 can control the current booster 3 to output alternating current according to the alternating current curve under the control of the computer control device 1, and correct the alternating current curve according to the alternating current data fed back by the current sensor 6.

[0078] And, a conversion drive circuit 204 electrically connected to the communication control interface 201, the sensor feeder interface 202 and the drive output interface 203 respectively.

[0079] In the technical solution provided in the embodiment of the present application, the conversion drive circuit 204 is respectively connected to the communication control interface 201, the sensor feeder interface 202 and the drive output interface 203, so that the conversion drive circuit 204 can receive the current curve conversion control signal sent by the computer control device 1 to generate alternating current curve information; and obtain the alternating current data of the current booster 3 through the sensor feeder interface 202, so as to adjust the current booster 3 to output an alternating current that conforms to the actual scenario in a negative feedback manner.

[0080] Among them, the above Figure 1 The conversion drive circuit 204 shown in FIG. Figure 2 , the conversion drive circuit 204 specifically includes:

[0081] A signal converter 2041 connected to the communication control interface 201; the signal converter 2041 can access the current curve conversion control signal sent by the computer control device 1 through the communication control interface 201, and convert the traction current curve information into the alternating current curve information according to the current curve conversion control signal. Among them, because the traction current and the alternating current are both in the form of alternating current, in the predetermined period, the images corresponding to the traction current and the alternating current are both curve graphs. The traction current curve information and the alternating current curve information respectively include the above-mentioned traction current curve and the alternating current curve, which are correspondingly the traction current value or the alternating current value corresponding to each sampling moment in the predetermined time period.

[0082] A signal comparator 2042 is connected to the sensor feeder interface 202 and the signal converter 2041 respectively; the signal comparator 2042 is connected to the sensor feeder interface 202, and can access the alternating current fed back by the current booster 3 through the sensor feeder interface 202, so as to compare the alternating current with the alternating current curve converted by the signal converter 2041, and correct the output of the current booster 3.

[0083] A drive controller 2043 is connected to the signal converter 2041 and the signal comparator 2042 respectively, wherein the drive controller 2043 is also electrically connected to the drive output interface 203. The drive controller 2043 can send a current booster drive signal to the current booster 3 through the drive output interface 203 to drive the current booster 3 to simulate and generate an alternating current and pass it into the electrical connection clamp 4. In addition, the drive controller 2043 is electrically connected to the signal converter 2041 and the signal comparator 2042 respectively, and can receive the alternating current curve signal input by the signal converter 2041 and the alternating current correction signal fed back by the signal comparator 2042; according to the above alternating current curve signal or the alternating current correction signal, the output current booster drive signal is adjusted in a negative feedback manner.

[0084] In addition, if Figure 1 As shown, in the embodiment of the present application, the computer control device 1 specifically includes:

[0085] An information storage device 101 and a processing controller 102 electrically connected to the information storage device 101; wherein the information storage device 101 is used to store traction current curve information.

[0086] The processing controller 102 is also electrically connected to the alternating current curve conversion driver 2 . The processing controller 102 is installed with corresponding control software, and can generate a current curve conversion control signal according to the traction current curve information stored in the information storage 101 and send it to the alternating current curve conversion driver 2 .

[0087] In the technical solution provided by the embodiment of the present application, the information storage 101 can load and store the traction current curve information of the traction substation within a period of time under the control of the processing controller 102. The processing controller 102 is installed with control software, which can generate a current curve conversion control signal according to the traction current curve information stored in the information storage 101, so as to control the alternating current curve conversion driver 2 to generate alternating current curve information according to the traction current curve information.

[0088] In addition, if Figure 1 As shown, the alternating current simulation control device provided in the embodiment of the present application also includes:

[0089] An AC power source 7 is electrically connected to the computer control device 1, the AC curve conversion driver 2 and the current booster 3 respectively; wherein the AC power source 7 is a 220V power source.

[0090] and, a power protector 8 electrically connected to the AC power source 7;

[0091] Among them, see Figure 3The power protector 8 includes: a leakage circuit breaker 801 connected to the current input terminal of the AC power supply 7; and an air switch 802 connected between the AC power supply 7 and the leakage circuit breaker 801. In addition, the power protector 8 may also include an isolation transformer, a UPS, a dual power converter, and a lightning protection module.

[0092] In the technical solution provided by the embodiment of the present application, the power protector 8 is electrically connected to the AC power supply 7, so that when an abnormality occurs in the AC power supply 7, such as leakage, the power protector 8 can disconnect the connection of the AC power supply 7, thereby protecting the computer control device 1, the alternating current curve conversion driver 2 and the current booster 3. The leakage circuit breaker 801 is connected to the power input end of the AC power supply 7, so that the leakage circuit breaker 801 can timely sense whether the AC power supply 7 is leaking; when the AC power supply 7 leaks, the air switch 802 disconnects the power cord of the AC power supply 7 in time, thereby protecting the above-mentioned AC power supply 7, the computer control device 1, the alternating current curve conversion driver 2 and the current booster 3 in time.

[0093] Among them, Figure 1 As shown, in the above-mentioned alternating current simulation control device, the current booster 3 also includes:

[0094] A thermistor 301 connected between the AC power source 7 and the current booster circuit;

[0095] And, a reed type thermal protection switch 302 is arranged on the housing of the current booster 3.

[0096] In the technical solution provided in the embodiment of the present application, the thermistor 301 includes a positive temperature coefficient PTC thermistor or a negative temperature coefficient NTC thermistor, and the thermistor 301 is connected between the AC power supply 7 and the current booster circuit, so that the thermistor 301 can realize the current protection of the current booster circuit. When the current of the current booster circuit is overloaded, the thermistor 301 disconnects the connection between the current booster circuit and the AC power supply 7. The reed-type thermal protection switch 302 is arranged on the housing of the current booster 3, so that the reed-type thermal protection switch 302 can sense the temperature of the current booster 3. The reed-type thermal protection switch 302 can be connected to the line between the current booster 3 and the AC power supply 7, so that when the reed-type thermal protection switch 302 senses that the temperature of the current booster 3 is too high, it can disconnect the AC power supply 7 of the current booster 3, or cool the current booster 3 through other cooling devices (such as a fan).

[0097] In addition, if Figure 1 As shown, the above-mentioned alternating current simulation control device also includes:

[0098] A three-dimensional cabinet 9 is provided with a computer control device 1, an alternating current curve conversion driver 2, and a current booster 3; the overall design and modular assembly of the alternating current simulation control device can be realized by designing the three-dimensional cabinet 9. In addition, the three-dimensional cabinet 9 can be modularly installed according to actual conditions to adapt to a larger alternating current, so that the adaptability of the entire alternating current simulation control device is stronger. The three-dimensional cabinet 9 can adopt a small-angle louver-type heat dissipation port to install a heat dissipation dustproof net, thereby realizing functions such as water splashing and dustproof, and improving the safety performance of the entire alternating current simulation control device.

[0099] And, a rolling caster 10 connected to the bottom surface of the three-dimensional cabinet 9. The rolling caster 10 has a self-locking function, which not only facilitates the movement of the entire alternating current simulation control device, but also can firmly fix the position of the alternating current simulation control device.

[0100] The three-dimensional cabinet 9 contains a computer control device 1, an alternating current curve conversion driver 2 and a current booster 3, and the three-dimensional cabinet 9 can realize functions such as water splash and dustproof for the above-mentioned devices. The rolling casters 10 are connected to the bottom surface of the three-dimensional cabinet, so that the rolling of the casters 10 can realize the movement of the alternating current simulation control device, making the whole device easy to transport and move, and simple and flexible to use.

[0101] Also, see Figure 1 The above-mentioned alternating current simulation control device also includes a heat dissipation component 11. The specific performance of the heat dissipation component 11 can be found in Figure 4 , including: a cabinet temperature sensor 1101 arranged inside the three-dimensional cabinet 9; a cabinet temperature controller 1102 electrically connected to the cabinet temperature sensor 1101; and a cooling fan 1103 electrically connected to the cabinet temperature controller 1102.

[0102] In the technical solution provided in the embodiment of the present application, the cabinet temperature sensor 1101 can sense the temperature of the three-dimensional cabinet 9, and then perform comparative control through the cabinet temperature controller 1102, and output a temperature control signal to the cooling fan 1103 to cool the three-dimensional cabinet 9 and keep the computer control device 1, alternating current curve conversion driver 2 and current booster 3 in the three-dimensional cabinet 9 working within a normal temperature.

[0103] In addition, if Figure 1 As shown, the above-mentioned alternating current simulation control device also includes: a grounding protection terminal 12 connected to the computer control device 1, the alternating current curve conversion driver 2 and the current booster 3 respectively.

[0104] By providing a grounding protection terminal 12 connected to the computer control device 1, the alternating current curve conversion driver 2 and the current booster 3 respectively, the above-mentioned devices can be grounded.

[0105] Among them, Figure 1 As shown, the above-mentioned grounding protection terminal includes a cabinet grounding protection terminal 1201 connected to the three-dimensional cabinet 9, and the cabinet grounding protection terminal 1201 can be used to achieve overall grounding protection for the entire three-dimensional cabinet 9.

[0106] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An alternating current simulation control device for an electrical connection clamp, characterized in that: include: A computer control device (1), an alternating current curve conversion driver (2) and a current booster (3); wherein: The computer control device (1) stores traction current curve information; The computer control device (1) is electrically connected to the alternating current curve conversion driver (2) and is used to generate a current curve conversion control signal according to the traction current curve information and send the signal to the alternating current curve conversion driver (2); The alternating current curve conversion driver (2) is used to convert the traction current curve information into alternating current curve information according to the current curve conversion control signal; The alternating current curve conversion driver (2) is electrically connected to the current booster (3), and is also used to generate a booster drive signal according to the alternating current curve information and send the signal to the current booster (3); The current booster (3) is used to connect to the electrical connection clamp (4), and is used to simulate and generate an alternating current according to the current booster drive signal and pass the alternating current into the electrical connection clamp (4); The current booster (3) and the electrical connection clamp (4) form a closed loop through a cable connection row (5); the alternating current simulation control device also includes: A current sensor (6) connected to the cable connection row (5) between the current booster (3) and the electrical connection clamp (4), for sensing the alternating current emitted by the current booster (3); The current sensor (6) is also electrically connected to the alternating current curve conversion driver (2) and is used to feed back the sensed alternating current to the alternating current curve conversion driver (2); The working process of the alternating current simulation control device is as follows: The computer control device loads the traction current curve information, which is obtained through the traction substation microcomputer monitoring system; the computer control device generates a current curve conversion control signal based on the traction current curve information and sends it to the alternating current curve conversion driver; the current curve conversion control signal is used to control the alternating current curve conversion driver to convert the above traction current curve into alternating current curve information; after the alternating current curve conversion driver converts the traction current curve information into alternating current curve information, it generates a current booster drive signal based on the alternating current curve information, and the current booster drive signal is used to control the current booster to simulate and generate an alternating current matching the above alternating current curve information, and pass it into the electrical connection clamp, thereby simulating the real alternating current passing through the electrical connection clamp, that is, simulating the temperature of the electrical connection clamp in the real contact network, thereby facilitating the accurate adjustment of the temperature sensor used to measure the temperature of the electrical connection clamp.

2. The alternating current simulation control device according to claim 1, characterized in that: The alternating current curve conversion driver (2) comprises: A communication control interface (201) for accessing the computer control device (1); A sensor feeder interface (202) for accessing the current sensor (6); A drive output interface (203) for connecting to the current booster (3); And, a conversion drive circuit (204) electrically connected to the communication control interface (201), the sensor feeder interface (202) and the drive output interface (203) respectively.

3. The alternating current simulation control device according to claim 2, characterized in that: The conversion drive circuit (204) comprises: A signal converter (2041) connected to the communication control interface (201); a signal comparator (2042) connected to the sensor feeder interface (202) and the signal converter (2041) respectively; A drive controller (2043) connected to the signal converter (2041) and the signal comparator (2042) respectively, wherein the drive controller (2043) is also electrically connected to the drive output interface (203).

4. The alternating current simulation control device according to claim 1, characterized in that: The computer controlled device (1) comprises: An information storage device (101), and a processing controller (102) electrically connected to the information storage device (101); wherein: The information storage device (101) is used to store the traction current curve information; The processing controller (102) is also electrically connected to the alternating current curve conversion driver (2) and is used to generate a current curve conversion control signal based on the traction current curve information stored in the information storage device (101) and send the signal to the alternating current curve conversion driver (2).

5. The alternating current simulation control device according to claim 1, characterized in that: Also includes: an alternating current power source (7) electrically connected to the computer control device (1), the alternating current curve conversion driver (2) and the current booster (3) respectively; and, a power supply protector (8) electrically connected to the AC power supply (7); The power supply protector (8) comprises: a leakage circuit breaker (801) connected to the current input end of the AC power supply (7); and an air switch (802) connected between the AC power supply (7) and the leakage circuit breaker (801).

6. The alternating current simulation control device according to claim 5, characterized in that: The current booster (3) further comprises: A thermal element (301) connected between the AC power source (7) and the current booster circuit; And, a reed-type thermal protection switch (302) arranged on the housing of the current booster (3).

7. The alternating current simulation control device according to claim 1, characterized in that: Also includes: A three-dimensional cabinet (9), wherein the three-dimensional cabinet (9) contains the computer control device (1), the alternating current curve conversion driver (2) and the current booster (3); And, rolling casters (10) connected to the bottom surface of the three-dimensional cabinet (9).

8. The alternating current simulation control device according to claim 7, characterized in that: It also includes a heat dissipation component (11), wherein the heat dissipation component (11) includes: A cabinet temperature sensor (1101) disposed inside the three-dimensional cabinet (9); A cabinet temperature controller (1102) electrically connected to the cabinet temperature sensor (1101); A cooling fan (1103) electrically connected to the cabinet thermostat (1102).

9. The alternating current simulation control device according to claim 1, characterized in that: Also includes: The grounding protection terminals (12) are respectively connected to the computer control device (1), the alternating current curve conversion driver (2) and the current booster (3).

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