CN117558172A - Autonomous and safe single-phase live-line work training system and control method - Google Patents
Autonomous and safe single-phase live-line work training system and control method Download PDFInfo
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- CN117558172A CN117558172A CN202311400120.6A CN202311400120A CN117558172A CN 117558172 A CN117558172 A CN 117558172A CN 202311400120 A CN202311400120 A CN 202311400120A CN 117558172 A CN117558172 A CN 117558172A
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- 206010014357 Electric shock Diseases 0.000 abstract description 22
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention belongs to the technical field of construction of a real system for operation training of a power distribution network, and the method comprises the steps of controlling the reactance of an adjustable series reactor to be initial reactance; controlling the output voltage of the voltage regulating transformer to be 90% of the initial voltage; trimming the output voltage of the voltage regulator transformer according to the voltage at the voltage sensor until the voltage at the voltage sensor reaches the system nominal voltage divided by the system nominal voltageWhen one and only one of the voltages at the voltage sensor is below the system nominal voltage divided byAnd (3) controlling the power switch to be turned off. The voltage regulator and the adjustable series reactor are coordinated and controlled, so that the practical training line reaches the rated voltage of the system; when the practical training line has personal electric shock accidents, the voltage of the electric shock part is automatically reduced, and meanwhile, the electric shock current is reduced below the allowable current, so that serious personal electric shock injury is prevented.
Description
Technical Field
The invention relates to the technical field of construction of real type system for operation training of a power distribution network, in particular to live-line operation live-line practical training electric shock injury prevention.
Background
In order to improve the power supply reliability, reduce the power failure time, ensure the power continuity of users, and the quick development of the live working of the power grid is obtained in China, and the live working range and the working times are gradually increased.
The live working of the distribution network is obviously different from the working of the ultra-high voltage transmission line. The ultra-high voltage transmission line operation is characterized in that the space electric field intensity and the operation distance are large, an operator needs to wear shielding clothes, and the equipotential method is adopted for high-potential operation so as to ensure safety. In the live working of the distribution network, because the space distance between the three-phase wires is smaller, if the operation is improper, the personal electric shock can be caused, and the system has single-phase grounding and interphase short circuit faults, so that the personal casualties are caused.
Live working belongs to special operation, and operators must be strictly trained to completely master the skills of the live working so as to develop the live working on the premise of ensuring safety. In 1958, the first live working training class of our country was held in the Anshan electric bureau, but since 1958, most live working training in our country was performed in an "uncharged" environment. And the electrified training is not carried out, the trainee does not have electric shock risk in the training, and the safety is relatively high. However, since the trainee clearly knows that the work point is not electrified in the training, the trainee can grasp the work skill. However, in actual work, the live working point can affect the psychology of the operators, and even the situations of mental stress, movement deformation and incapability of electric work of the live working operators occur. Therefore, it is difficult to train out a charge worker with a quality too hard without charge training. However, under the condition of live training, the students cannot fully master the operation skills, so that the actions are unskilled, and the potential safety hazard of electric shock of the human body is large in the live training.
In order to realize live working live training under the safety condition and prevent personal electric shock, the invention provides an electric shock protection system of a live working live training system, which can quickly limit system voltage or cut off system power supply and prevent personal electric shock injury.
Disclosure of Invention
The present invention has been made in view of the above-described problems occurring in the prior art. The voltage regulator and the adjustable series reactor are controlled in a coordinated manner, so that the practical training line reaches the rated voltage of the system; when the practical training line has personal electric shock accidents, the voltage of the electric shock part is automatically reduced, and meanwhile, the electric shock current is reduced below the allowable current, so that serious personal electric shock injury is prevented.
Therefore, the control method of the autonomous and safe single-phase live working training system is provided.
In order to solve the technical problems, the invention provides a control method of an autonomous and safe single-phase live working training system, which comprises the following steps:
controlling the reactance of the adjustable series reactor to be an initial reactance; controlling the output voltage of the voltage regulating transformer to be 90% of the initial voltage; trimming the output voltage of the voltage regulator transformer according to the voltage at the voltage sensor until the voltage at the voltage sensor reaches the system nominal voltage divided by the system nominal voltageWhen the voltage at the voltage sensor is lower than the system nominal voltage divided by +.>And (3) controlling the power switch to be turned off.
As a preferable scheme of the control method of the autonomous safe single-phase live working training system, the invention comprises the following steps: the initial reactance of the adjustable series reactor comprises the following expression:
wherein X is L_org Is the initial reactance of the tunable series reactor.
As a preferable scheme of the control method of the autonomous safe single-phase live working training system, the invention comprises the following steps: the output voltage of the regulating transformer includes an initial voltage expressed as:
wherein U is Ty_org The initial voltage output by the voltage regulator transformer is m is the transformation ratio of the step-up transformer and is changed from step-upThe rated voltage of the low-voltage side of the transformer is divided by the rated voltage of the high-voltage side, U e For practical training line nominal voltage, k is a preset coefficient.
As a preferable scheme of the autonomous safe single-phase live working training system, the invention comprises the following steps: the adjustable series reactor comprises a power switch, wherein one side of the power switch is connected with an alternating current power supply, the other side of the power switch is connected with a voltage regulating transformer, when the power switch is turned on, the alternating current power supply is supplied to the voltage regulating transformer through the power switch, one side of the voltage regulating transformer is connected with the power switch, the voltage regulating transformer receives alternating current from the power switch to regulate voltage, the other side of the voltage regulating transformer is connected to a low-voltage side of the step-up transformer to receive the regulated voltage, one side of the step-up transformer is connected with the voltage regulating transformer, the other side of the step-up transformer is connected with the adjustable series reactor, the step-up transformer is used for raising the voltage of the low-voltage side to a required working voltage, the raised voltage is transmitted to the adjustable series reactor, one side of the adjustable series reactor is connected with an actual training line, the adjustable series reactor is used for receiving the working voltage from the step-up transformer, the regulated voltage is transmitted to the actual training line through the adjustable series reactor as required, the three-phase short circuit of the actual training line is connected to the adjustable series reactor, the step-up control module controls the voltage regulating reactor to realize voltage regulation, and the step-up control module controls the adjustable series reactor.
As a preferable scheme of the autonomous safe single-phase live working training system, the invention comprises the following steps: the boost control module comprises a voltage sensor and a control unit.
The voltage sensor is connected between the adjustable series reactor and the practical training line and is used for measuring the voltage of the point, the control unit controls the transformation ratio of the voltage-regulating transformer and controls the reactance of the adjustable series reactor, so that the practical training line reaches the rated voltage.
As a preferable scheme of the autonomous safe single-phase live working training system, the invention comprises the following steps: the training line comprises the sum expression of each relatively-distributed capacitor:
wherein C is LA To practically train the sum of the relatively distributed capacitances of the lines, R h The impedance of the human body is 0.5k omega-1.5 k omega, omega is the angular frequency of the system, k is a preset coefficient, and the value is 50-500.
As a preferable scheme of the autonomous safe single-phase live working training system, the invention comprises the following steps: the voltage regulating transformer comprises a voltage regulating transformer, wherein the capacity of the voltage regulating transformer is more than or equal to that of a step-up transformer, the capacity of the step-up transformer is more than or equal to 10 times of the charging capacity of a practical training line, and the charging capacity expression of the practical training line is as follows:
wherein S is L The method is used for training the charging capacity of the line.
Another object of the present invention is to provide an autonomous and safe single-phase live-line training system, in which an operator can simulate a real live-line operation scenario, learn how to correctly use devices such as a power switch, a step-up transformer, and an adjustable series reactor, and how to cope with possible safety problems and emergency situations. The system can monitor and control the voltage and the current in the practical training line so as to ensure the safety of operators, provide real-time feedback and guidance, and help the operators to raise the safety consciousness and the technical level of the operators.
The autonomous safe single-phase live working training system is characterized by comprising a power switch, a voltage regulating transformer, a step-up transformer, an adjustable series reactor, a training circuit and a step-up control module.
The power switch controls the on-off of the alternating current power supply, provides electric energy for the system when the alternating current power supply is turned on, and cuts off the power supply when the alternating current power supply is turned off.
The voltage regulating transformer is used for regulating the input voltage and converting alternating current from a power supply into required working voltage.
The step-up transformer is used for increasing the voltage of the low-voltage side to the required high voltage and adapting to the requirement of a practical training line.
The adjustable series reactor is used for adjusting the reactance value of the output voltage and influencing the current and the voltage in the practical training line by changing the reactance.
The practical training circuit is a circuit for actually carrying out live working practical training and is used for simulating a real working environment and comprises a three-phase short circuit connection mode.
The boost control module monitors and controls the running state of the whole system, realizes the adjustment of input voltage by controlling the voltage regulating transformer, and adjusts the reactance value of output voltage by controlling the adjustable series reactor.
A computer device comprising a memory and a processor, said memory storing a computer program, characterized in that said processor, when executing said computer program, implements the steps of controlling said method by an autonomous safe single-phase live working training system.
A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor realizes the steps of the method of controlling an autonomous safe single-phase live working training system.
The invention has the beneficial effects that: the voltage at the practical training line can reach the rated voltage of the system by coordinately controlling the voltage regulator and the adjustable series reactor. In the practical training process, if personal electric shock accidents occur, the system can autonomously reduce the voltage of an electric shock part, and simultaneously reduce the electric shock current below the allowable current, so that serious personal electric shock injuries are effectively prevented. The voltage and current conditions in the practical training line can be monitored in real time, and the voltage regulator and the adjustable series reactor can be adjusted according to the requirements so as to maintain the safe working state of the practical training line. And adjusting and optimizing according to actual requirements so as to adapt to different practical training scenes and requirements.
Drawings
For a clearer description of the technical solutions of embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic flow chart of a control method of an autonomous safe single-phase live-line work training system according to an embodiment of the invention.
Fig. 2 is a schematic diagram of an electric shock protection system according to a control method of an autonomous safe single-phase live-line work training system according to an embodiment of the present invention.
FIG. 3 is a schematic workflow diagram of an autonomous and safe single-phase live-line training system according to an embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
While the embodiments of the present invention have been illustrated and described in detail in the drawings, the cross-sectional view of the device structure is not to scale in the general sense for ease of illustration, and the drawings are merely exemplary and should not be construed as limiting the scope of the invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Also in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper, lower, inner and outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first, second, or third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected, and coupled" should be construed broadly in this disclosure unless otherwise specifically indicated and defined, such as: can be fixed connection, detachable connection or integral connection; it may also be a mechanical connection, an electrical connection, or a direct connection, or may be indirectly connected through an intermediate medium, or may be a communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1, a control method of an autonomous safe single-phase live working training system is provided for a first embodiment of the present invention, including:
s1: the reactance of the adjustable series reactor is controlled to be an initial reactance.
Further, when the power switch is turned on, the alternating current power is supplied to the voltage regulating transformer through the power switch, one side of the voltage regulating transformer is connected with the power switch, the voltage regulating transformer receives alternating current from the power switch to regulate voltage, the other side is connected to a low-voltage side of the step-up transformer to receive the regulated voltage, one side of the low-voltage side of the step-up transformer is connected with the voltage regulating transformer, the other side is connected to the adjustable series reactor, the step-up transformer raises the voltage of the low-voltage side to a required working voltage and transmits the raised voltage to the adjustable series reactor, one side of the adjustable series reactor is connected with the adjustable series reactor, the other side of the adjustable series reactor is connected with a practical training line, the adjustable series reactor receives the working voltage from the step-up transformer and regulates the reactance value according to requirements, the regulated voltage is transmitted to the practical training line through the adjustable series reactor, the three-phase short circuit of the practical training line is connected to the adjustable series reactor, the step-up control module controls the voltage regulating transformer to realize voltage regulation, and the step-up control module controls the reactance of the adjustable series reactor.
The initial reactance of the adjustable series reactor comprises the following expression:
wherein X is L_org Is the initial reactance of the tunable series reactor.
S2: controlling the output voltage of the voltage regulating transformer to 90% of the initial voltage
Further, the output voltage of the regulating transformer includes an initial voltage expressed as:
wherein U is Ty_org The initial voltage output by the voltage regulator transformer is represented by m, which is the transformation ratio of the step-up transformer and is obtained by dividing the rated voltage of the low-voltage side of the step-up transformer by the rated voltage of the high-voltage side, U e For practical training line nominal voltage, k is a preset coefficient.
S3: trimming the output voltage of the voltage regulator transformer according to the voltage at the voltage sensor until the voltage at the voltage sensor reaches the system nominal voltage divided by the system nominal voltageWhen the voltage at the voltage sensor is below the system nominal voltage divided byAnd (3) controlling the power switch to be turned off.
It should be noted that the boost control module includes a voltage sensor and a control unit.
The voltage sensor is connected between the adjustable series reactor and the practical training line and is used for measuring the voltage of the point, and the control unit controls the transformation ratio of the voltage-regulating transformer and controls the reactance of the adjustable series reactor so that the practical training line reaches the rated voltage.
It should also be noted that the training line includes the sum expression of the respective relatively distributed capacitances:
wherein C is LA To practically train the sum of the relatively distributed capacitances of the lines, R h The impedance of the human body is 0.5k omega-1.5 k omega, omega is the angular frequency of the system, k is a preset coefficient, and the value is 50-500.
The voltage regulating transformer comprises a voltage regulator transformer, wherein the capacity of the voltage regulator transformer is more than or equal to that of a step-up transformer, the capacity of the step-up transformer is more than or equal to 10 times of the charging capacity of a practical training line, and the charging capacity expression of the practical training line is as follows:
wherein S is L The method is used for training the charging capacity of the line.
Example 2
Referring to fig. 2, for one embodiment of the present invention, a control method of an autonomous and safe single-phase live-line training system is provided, and in order to verify the beneficial effects of the present invention, scientific demonstration is performed through experiments.
Setting experimental parameters:
the initial reactance of the adjustable series reactor is X L_org The method comprises the steps of carrying out a first treatment on the surface of the The output voltage of the regulating transformer is 90% of the initial voltage; the nominal voltage of the system is U Ty_org The method comprises the steps of carrying out a first treatment on the surface of the The preset coefficient k is 50; the transformation ratio m of the step-up transformer is obtained by dividing the rated voltage of the low-voltage side of the step-up transformer by the rated voltage of the high-voltage side; nominal voltage of practical training line is U e 。
The experimental steps are as follows:
turning on a power switch to supply electric energy to the system; according to the initial reactance value of the adjustable series reactor, adjusting the reactance to X L_org The method comprises the steps of carrying out a first treatment on the surface of the According to the output voltage expression of the voltage regulating transformer, regulating the output voltage to 90% of the initial voltage; trimming the output voltage of the regulating transformer according to the voltage at the voltage sensor until the voltage at the voltage sensor reaches the system nominal voltage divided by the voltage of the system nominal voltage; when one and only one of the voltages at the voltage sensor is below the system nominal voltage divided byAnd (3) controlling the power switch to be turned off.
Table 1 experimental data table:
according to the experimental data table, the relation between the output voltage of the regulating transformer under different initial reactance and the nominal voltage of the system can be obtained; meanwhile, the performance index of the prior art scheme and the performance index electric shock probability of the method can be compared, and the electric shock probability is greatly reduced; through comparative analysis, the method can prove the effectiveness and superiority of the method in controlling the output voltage of the adjustable series reactor and the adjustable transformer.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Example 3
A third embodiment of the present invention, which is different from the first two embodiments, is:
the functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for enabling a computer device to be a personal computer, a server, a network device or the like to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a ROM, a Read-only memory, a ram RAM, randomAccessMemory, a magnetic or optical disk, or other various media capable of storing program codes.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
A more specific example, non-exhaustive list of the computer-readable medium includes the following: an electrical connection electronics device having one or more wiring, a portable computer cartridge magnetic device, a random access memory RAM, a read-only memory ROM, an erasable programmable read-only memory EPROM or flash memory, an optical fiber device, and a portable compact disc read-only memory CDROM. In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable gate arrays PGAs, field programmable gate arrays FPGAs, and the like.
Example 4
Referring to fig. 3, a fourth embodiment of the present invention provides an autonomous safe single-phase live working training system, which includes a power switch, a voltage regulating transformer, a step-up transformer, an adjustable series reactor, a training line, and a step-up control module.
The power switch controls the on-off of the alternating current power supply, provides electric energy for the system when the system is opened, and cuts off the power supply when the system is closed.
The voltage regulating transformer is used for regulating the input voltage and converting alternating current from a power supply into a required working voltage.
The step-up transformer steps up the voltage of the low-voltage side to the required high voltage, and the step-up transformer adapts to the requirement of a practical training line.
The adjustable series reactor adjusts the reactance value of the output voltage, and the current and the voltage in the practical training line are influenced by changing the reactance.
The practical training circuit is used for simulating a real working environment and comprises a three-phase short circuit connection mode.
The boost control module monitors and controls the running state of the whole system, realizes the adjustment of input voltage by controlling the voltage regulating transformer, and adjusts the reactance value of output voltage by controlling the adjustable series reactor.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. A control method of an autonomous safe single-phase live working training system is characterized by comprising the following steps of: comprising the steps of (a) a step of,
controlling the reactance of the adjustable series reactor to be an initial reactance;
controlling the output voltage of the voltage regulating transformer to be 90% of the initial voltage;
trimming the output voltage of the voltage regulator transformer according to the voltage at the voltage sensor until the voltage at the voltage sensor reaches the system nominal voltage divided by the system nominal voltage
When the voltage at the voltage sensor is below the system nominal voltage divided byAnd (3) controlling the power switch to be turned off.
2. The control method of an autonomous and safe single-phase live-line training system according to claim 1, wherein the control method comprises the following steps: the initial reactance of the adjustable series reactor comprises the following expression:
wherein X is L_org Is the initial reactance of the tunable series reactor.
3. The control method of an autonomous and safe single-phase live working training system as claimed in claim 2, wherein: the output voltage of the regulating transformer includes an initial voltage expressed as:
wherein U is Ty_org The initial voltage output by the voltage regulator transformer is represented by m, which is the transformation ratio of the step-up transformer and is obtained by dividing the rated voltage of the low-voltage side of the step-up transformer by the rated voltage of the high-voltage side, U e For practical training line nominal voltage, k is a preset coefficient.
4. An autonomous safe single-phase live working training system is characterized in that: the device comprises a power switch, a voltage regulating transformer, a step-up transformer, an adjustable series reactor, a practical training line and a step-up control module;
the power switch is used for controlling the on-off of an alternating current power supply, supplying electric energy to the system when the alternating current power supply is turned on, and cutting off the power supply when the alternating current power supply is turned off;
the voltage regulating transformer is used for regulating the input voltage and converting alternating current from a power supply into required working voltage;
the step-up transformer is used for increasing the voltage of the low-voltage side to the required high voltage so as to adapt to the requirement of a practical training line;
the adjustable series reactor is used for adjusting the reactance value of the output voltage and influencing the current and the voltage in the practical training line by changing the reactance;
the practical training circuit is a circuit for actually carrying out live working practical training and is used for simulating a real working environment and comprises a three-phase short circuit connection mode;
the boost control module monitors and controls the operation state of the whole system, realizes the adjustment of the input voltage by controlling the regulating transformer 200, and adjusts the reactance value of the output voltage by controlling the adjustable series reactor 400.
5. An autonomous, safe, single-phase live working training system as defined in claim 4, wherein: the adjustable series reactor comprises a power switch, wherein one side of the power switch is connected with an alternating current power supply, the other side of the power switch is connected with a voltage regulating transformer, when the power switch is turned on, the alternating current power supply is supplied to the voltage regulating transformer through the power switch, one side of the voltage regulating transformer is connected with the power switch, the voltage regulating transformer receives alternating current from the power switch to regulate voltage, the other side of the voltage regulating transformer is connected to a low-voltage side of the step-up transformer to receive the regulated voltage, one side of the step-up transformer is connected with the voltage regulating transformer, the other side of the step-up transformer is connected with the adjustable series reactor, the step-up transformer is used for raising the voltage of the low-voltage side to a required working voltage, the raised voltage is transmitted to the adjustable series reactor, one side of the adjustable series reactor is connected with an actual training line, the adjustable series reactor is used for receiving the working voltage from the step-up transformer, the regulated voltage is transmitted to the actual training line through the adjustable series reactor as required, the three-phase short circuit of the actual training line is connected to the adjustable series reactor, the step-up control module controls the voltage regulating reactor to realize voltage regulation, and the step-up control module controls the adjustable series reactor.
6. An autonomous, safe, single-phase live working training system as defined in claim 5, wherein: the boost control module comprises a voltage sensor and a control unit;
the voltage sensor is connected between the adjustable series reactor and the practical training line and is used for measuring the voltage of the point, the control unit controls the transformation ratio of the voltage-regulating transformer and controls the reactance of the adjustable series reactor, so that the practical training line reaches the rated voltage.
7. An autonomous, safe, single-phase live working training system as defined in claim 6, wherein: the training line comprises the sum expression of each relatively-distributed capacitor:
wherein C is LA To practically train the sum of the relatively distributed capacitances of the lines, R h The impedance of the human body is 0.5k omega-1.5 k omega, omega is the angular frequency of the system, k is a preset coefficient, and the value is 50-500.
8. An autonomous, safe, single-phase live working training system as defined in claim 7, wherein: the voltage regulating transformer comprises a voltage regulating transformer, wherein the capacity of the voltage regulating transformer is more than or equal to that of a step-up transformer, the capacity of the step-up transformer is more than or equal to 10 times of the charging capacity of a practical training line, and the charging capacity expression of the practical training line is as follows:
wherein S is L The method is used for training the charging capacity of the line.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
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