CN112701938A - Rectifier power supply control device of combined arc heater - Google Patents
Rectifier power supply control device of combined arc heater Download PDFInfo
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- CN112701938A CN112701938A CN202011606291.0A CN202011606291A CN112701938A CN 112701938 A CN112701938 A CN 112701938A CN 202011606291 A CN202011606291 A CN 202011606291A CN 112701938 A CN112701938 A CN 112701938A
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- power supply
- rectification
- plc
- heater
- upper computer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/1555—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/18—Heating by arc discharge
- H05B7/185—Heating gases for arc discharge
Abstract
The invention discloses a rectification power supply control device of a combined arc heater, which comprises a control module, a rectification module and a heating module, wherein the control module comprises a power supply upper computer, a heating upper computer and a PLC (programmable logic controller) main station, the rectification module comprises a rectification power supply PLC slave station, a rectification power supply thyristor pulse controller, a rectification power supply relay unit and a rectification power supply, and the heating module is a combined arc heater and comprises two high-power heaters. The invention realizes the remote operation, synchronous control and synchronous output of two rectifying power supplies so as to meet the condition of simultaneously supplying power to the high-power combined direct-current heater, when a fault occurs, two groups of power supplies are simultaneously stopped for protection, and fault information can be uploaded for searching and analyzing.
Description
Technical Field
The invention relates to the technical field of industrial automation control, in particular to a rectification power supply control device of a combined type arc heater.
Background
With the continuous development of the space technology in China, the research of spacecraft materials becomes one of the key technologies. In the process of the spacecraft crossing the atmosphere, the high-speed friction can enable the surface material of the spacecraft to bear the external environments of high temperature, high pressure and the like. In order to prevent the serious accident caused by damage and even damage of the spacecraft due to pneumatic heating, the heat-proof material of the heat-proof system needs to be subjected to a pneumatic heat test on the ground to check the heat-proof performance of the heat-proof system, the pneumatic heat test is generally carried out in an electric arc heater jet flow or an electric arc wind tunnel, the high temperature of an electric arc is utilized to heat the gas, and screening, ablation and ablation appearance change experiments of the heat-proof material for the spacecraft can be provided, so that the safety and reliability of the spacecraft are greatly improved.
At present, a direct current arc heater powered by a direct current power supply is widely applied, a direct current power supply system mostly adopts a rectifying technology of a thyristor device and provides voltage and current required by the heater according to different characteristics of the heater, and the prior technical scheme is that a single rectifying power supply supplies power to a single direct current heater to operate.
With the development of pneumatic thermal ground simulation technology, higher-power arc heaters were developed.
Disclosure of Invention
The invention aims to provide a rectification power supply control device of a combined arc heater, and aims to solve the problems of simultaneous power supply and fault information search and analysis of a high-power combined direct-current heater.
The embodiment of the invention provides a rectification power supply control device of a combined arc heater, which comprises: the control module comprises a heater upper computer, a PLC main station and a power supply upper computer, the heating upper computer and the power supply upper computer are communicated with the PLC main station, the heating module is a combined arc heater and is used for ionizing air by using a direct current power supply to form plasma arc, the rectification module comprises a left rectification module and a right rectification module, the left rectification module comprises a rectification power supply PLC slave station, a rectification power supply thyristor pulse controller, a rectification power supply relay unit and a rectification power supply, the rectification power supply PLC slave station is communicated with the PLC main station, the rectification power supply PLC slave station is communicated with the rectification power supply thyristor pulse controller and the rectification power supply relay unit, and the rectification power supply thyristor pulse controller and the rectification power supply relay unit are connected with the rectification power supply, the rectification power supply is connected with one of the combined arc heaters, the negative electrode of the rectification power supply is connected with the common ground through the combined arc heater, and the left path rectification module and the right path rectification module have the same structure;
the power supply upper computer is used for remotely controlling and displaying the rectified power supply, the heater upper computer is a control host machine for the operation of the combined arc heater, the heater upper computer sends an instruction to the PLC main station, the PLC main station sends an instruction to the power supply upper computer, the power supply upper computer sends an instruction to the PLC master station to execute the heater running state requirement of the heater upper computer, the PLC master station distributes instructions to the rectification power supply PLC slave stations, the rectification power supply PLC slave stations receive operation instructions sent by the PLC master station and transmit signals to the thyristor trigger controller, and the rectifier power supply relay unit is used for controlling and displaying the field switching value of the rectifier power supply, providing current for the combined arc heater and realizing the distribution and the acquisition of the simultaneous power supply signals of two sets of rectifier power supplies.
Preferably, the control signal of the power upper computer is transmitted to the PLC master station through a Profibus-DP bus, and the field feedback signal is transmitted to the power upper computer through the PLC master station to be displayed.
Preferably, the PLC master station communicates with the power supply upper computer, the heater upper computer and the rectification power supply PLC slave station through a Profibus-DP bus, collects a feedback signal of the rectification power supply PLC slave station, and transmits the signal back to the power supply upper computer for display.
Preferably, the heater upper computer transmits the operation state of the heater to the PLC main station.
Preferably, the rectification power supply PLC slave station establishes communication with the PLC master station and the rectification power supply thyristor pulse controller through a Profibus-DP bus, receives an operation instruction sent by the PLC master station, transmits a starting signal, a stopping signal and a current given signal to the rectification power supply thyristor pulse controller to realize thyristor triggering, and simultaneously gives an instruction to the rectification power supply relay unit to realize operation and signal acquisition of on-site switching value.
Preferably, the rectifier power supply thyristor pulse controller is a direct current speed regulation driver, and is used for performing data acquisition and operation, generating a thyristor trigger pulse sequence, and triggering and protecting a thyristor of the rectifier power supply.
Preferably, the rectifier power supply thyristor pulse controller feeds the output current and voltage back to the PLC master station through a Profibus-DP bus.
Preferably, the rectifier power supply relay unit includes an intermediate relay, a miniature circuit breaker and a contactor, and is used for operating a switching variable of the rectifier power supply to realize state selection and switching of the rectifier power supply.
Preferably, the rectification power supply adopts a high-power direct-current power supply of a thyristor rectification technology, the design power is 63MW, and different power supply modes are output through switch cabinet combination.
Preferably, the combined arc heater adopts two tube arc heaters, two arcs are generated simultaneously, high voltage is generated through the combined action of the mixing chamber, and the low-enthalpy heat environment operation power reaches 50 MW-70 MW magnitude.
By adopting the embodiment of the invention, the upper computer, the PLC, the rectifier power supply thyristor pulse controller and the rectifier power supply relay unit are networked, so that the remote operation, synchronous control, synchronous output and synchronous protection of the two rectifier power supplies are realized, and the condition of simultaneously supplying power to a certain novel combined type direct current arc heater is met.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a rectified power supply control device of a combined arc heater according to an embodiment of the present invention;
description of reference numerals:
1: a power supply upper computer; 2: a PLC master station; 3: a heater upper computer; 4: a rectified power supply PLC slave station; 5: a thyristor pulse controller of the rectification power supply; 6: a rectified power supply relay unit; 7: a rectified power supply; 8: a combined arc heater.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to an embodiment of the present invention, a rectification power supply control device of a combined arc heater 8 is provided, fig. 1 is a schematic diagram of the rectification power supply control device of the combined arc heater 8 according to the embodiment of the present invention, and as shown in fig. 1, the rectification power supply control device of the combined arc heater 8 according to the embodiment of the present invention specifically includes a control module, a rectification module, and a heating module, the control module includes a heater upper computer 3, a PLC master station 2, and a power upper computer 1, the heating upper computer and the power upper computer 1 communicate with the PLC master station 2, the heating module is the combined arc heater 8, and is configured to ionize air to form plasma arc by using a dc power supply, the rectification module includes a left rectification module and a right rectification module, the left rectification module includes a rectification power supply PLC 4, a rectification power supply thyristor pulse controller 5, a slave station 5, and a fourth rectification power supply module, The power supply comprises a rectification power supply relay unit 6 and a rectification power supply 7, a rectification power supply PLC slave station 4 is communicated with a PLC master station 2, the rectification power supply PLC slave station 4 is communicated with a rectification power supply thyristor pulse controller 5 and the rectification power supply relay unit 6, the rectification power supply thyristor pulse controller 5 and the rectification power supply relay unit 6 are connected with the rectification power supply 7, the rectification power supply 7 is connected with one of the combined arc heaters, the negative pole of the rectification power supply 7 is connected in common through the combined arc heater 8, and a left rectification module and a right rectification module are identical in structure;
the power supply upper computer 1 is used for remotely controlling, operating and displaying the rectifier power supply 7, the heater upper computer 3 issues an instruction to the PLC master station 2, the PLC master station 2 sends the instruction to the power supply upper computer 1, the power supply upper computer 1 sends the instruction to the PLC master station 2 to execute the heater running state requirement of the heater upper computer 3, the PLC master station 2 distributes the instruction to the rectifier power supply PLC slave station 4, the rectifier power supply PLC slave station 4 receives the operating instruction sent by the PLC master station 2, transmits the signal to the thyristor trigger controller, and communicates with the rectifier power supply relay unit 6 at the same time, and the rectifier power supply relay unit 6 is used for controlling and displaying the field switching value of the rectifier power supply 7, so that the combined type arc heater provides current, and the distribution and collection of the power supply signals of the two sets.
The power supply upper computer 1 realizes the operation of the rectification power supply 7 through the built-in configuration software, the control signal of the power supply upper computer 1 is transmitted to the PLC master station 2 through the Profibus-DP bus, and the field feedback signal is transmitted to the power supply upper computer 1 through the PLC master station 2 to be displayed, so that the remote operation and monitoring during the simultaneous power supply of the two rectification power supplies 7 are realized. The PLC master station 2 is communicated with the power supply upper computer 1, the heater upper computer 3 and the rectification power supply PLC slave station 4 through a Profibus-DP bus by adopting S7-400 series of Siemens company, receives operation instructions sent by the power supply upper computer 1 and the heater upper computer 3, distributes the instructions to the corresponding rectification power supply PLC slave station 4, simultaneously collects feedback signals of the rectification power supply PLC slave station 4, and returns the signals to the power supply upper computer 1 for display, thereby realizing the real-time transmission of signals and data simultaneously supplied by two sets of rectification power supplies 7. The heater upper computer 3 is a control host computer for the operation of the combined arc heater 8 and transmits the operation state of the heater to the PLC main station 2. The rectification power supply PLC slave station 4 adopts S7-300 series of Siemens company, establishes communication with the PLC master station 2 and the rectification power supply thyristor pulse controller 5 through a Profibus-DP bus, receives an operation instruction sent by the PLC master station 2, transmits an on-off signal and a current given signal to the rectification power supply thyristor pulse controller 5 to realize thyristor triggering, and simultaneously gives an instruction to the rectification power supply relay unit 6 to realize the operation and signal acquisition of on-site switching value. The rectifier power supply thyristor pulse controller 5 adopts a direct current speed regulation driver SYMANDYND of siemens company for data acquisition, operation, generation of a thyristor trigger pulse sequence, and triggering and protection of a thyristor of the rectifier power supply. The rectifier power supply thyristor pulse controller 5 feeds the output current and voltage back to the PLC main station 2 through a Profibus-DP bus. The rectification power supply relay unit 6 includes an intermediate relay, a miniature circuit breaker, and a contactor, and is used for operating a switching variable of the rectification power supply 7 to realize state selection and switching of the rectification power supply 7. The rectification power supply 7 adopts a high-power direct-current power supply of a thyristor rectification technology, the design power is 63MW, and different power supply modes are output through switch cabinet combination. The combined arc heater 8 adopts two tube arc heaters, two arcs are generated simultaneously, high voltage is generated through the combined action of the mixing chamber, and the low-enthalpy heat environment operating power reaches 50 MW-70 MW magnitude.
The specific implementation steps are as follows:
firstly, a power supply upper computer 1 receives a heater running state requirement from a heater upper computer 3 through a PLC main station 2, and issues an instruction to a rectification power supply PLC slave station 4 through the PLC main station 2, and the rectification power supply PLC slave station 4 establishes a rectification power supply 7 adaptive to a power supply output mode by operating a rectification power supply relay unit 6. At this time, the two rectified power supplies 7 have the same no-load voltage and current gear, and the power supplies are in a hot standby state.
And secondly, receiving the arcing current numerical value transmitted from the heater upper computer 3 by the power supply upper computer 1 through the PLC master station 2, distributing the same data to the rectifier power supply thyristor pulse controller 5 through the rectifier power supply PLC slave station 4, and enabling the two sets of power supplies to be in a hot standby state.
And step three, the power supply upper computer 1 receives a driving signal transmitted from the heater upper computer 3 through the PLC master station 2, the two sets of power supplies enter the running state, meanwhile, the PLC master station 2 receives a dynamic current variable transmitted from the heater upper computer 3, the same data are distributed to the rectification power supply thyristor pulse controller 5 through the rectification power supply PLC slave station 4 in real time, the rectification power supply thyristor pulse controller 5 triggers the two sets of rectification power supplies 7 to output the same power supply parameters, and the two arc running states of the combined arc heater 8 are guaranteed to be consistent.
And step four, the power supply upper computer 1 receives the arc running state transmitted by the heater upper computer 3 and the power supply running state transmitted by the rectifier power supply thyristor pulse controller 5 in real time through the PLC master station 2, when one heater or one set of power supply is abnormal, the power supply upper computer 1 sends a parking instruction, and the two sets of power supplies stop running.
The embodiment of the invention utilizes a PLC digital control technology and a DP industrial network bus technology to carry out networking on an upper computer, the PLC, a rectification power supply thyristor pulse controller 5 and a rectification power supply relay unit 6, thereby realizing remote operation, synchronous control and synchronous output of two rectification power supplies 7 so as to meet the condition of simultaneous power supply of a high-power combined type direct current heater. When one group of power supplies is abnormal in state or one electric arc vibrates, the two groups of power supplies are stopped at the same time for protection, and fault information can be uploaded for searching and analyzing.
The control mode of the embodiment of the invention realizes the parallel operation of the two groups of high-power rectification power supplies 7 supplying power simultaneously, provides a brand new control method for the power supply of the novel combined arc heater 8, and simultaneously popularizes the method to more control fields to realize the operation of a higher-power direct current heater.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A rectification power supply control device of a combined type arc heater is characterized by comprising a control module, a rectification module and a heating module, wherein the control module comprises a heater upper computer, a PLC main station and a power upper computer, the heating upper computer and the power upper computer are communicated with the PLC main station, the heating module is a combined type arc heater and is used for ionizing air by utilizing a direct current power supply to form a plasma arc, the rectification module comprises a left rectification module and a right rectification module, the left rectification module comprises a rectification power PLC slave station, a rectification power thyristor pulse controller, a rectification power relay unit and a rectification power supply, the rectification power PLC slave station is communicated with the PLC main station, the rectification power PLC slave station is communicated with the rectification power thyristor pulse controller and the rectification power relay unit, the rectification power supply thyristor pulse controller and the rectification power supply relay unit are connected with the rectification power supply, the rectification power supply is connected with one of the combined arc heaters, the negative electrode of the rectification power supply is connected with the combined arc heater in a common ground mode, and the left rectification module and the right rectification module are identical in structure;
the power supply upper computer is used for remotely controlling and displaying the rectified power supply, the heater upper computer is a control host machine for the operation of the combined arc heater, the heater upper computer sends an instruction to the PLC main station, the PLC main station sends an instruction to the power supply upper computer, the power supply upper computer sends an instruction to the PLC master station to execute the heater running state requirement of the heater upper computer, the PLC master station distributes instructions to the rectification power supply PLC slave stations, the rectification power supply PLC slave stations receive operation instructions sent by the PLC master station and transmit signals to the thyristor trigger controller, and the rectifier power supply relay unit is used for controlling and displaying the field switching value of the rectifier power supply, providing current for the combined arc heater and realizing the distribution and the acquisition of the simultaneous power supply signals of two sets of rectifier power supplies.
2. The device of claim 1, wherein the power supply upper computer, control signals of the power supply upper computer are transmitted to a PLC main station through a Profibus-DP bus, and field feedback signals are transmitted to the power supply upper computer through the PLC main station to be displayed.
3. The apparatus of claim 1, wherein the PLC master station communicates with the power supply host computer, the heater host computer, and the rectified power supply PLC slave station via a Profibus-DP bus, collects feedback signals from the rectified power supply PLC slave station, and transmits the signals back to the power supply host computer for display.
4. The apparatus of claim 1, wherein the heater host computer transmits the heater operation status to the PLC master station.
5. The device of claim 1, wherein the rectification power supply PLC slave station establishes communication with the PLC master station and the rectification power supply thyristor pulse controller through a Profibus-DP bus, receives an operation command sent by the PLC master station, transmits an on/off signal and a current setting signal to the rectification power supply thyristor pulse controller to realize thyristor triggering, and simultaneously instructs a rectification power supply relay unit to realize operation and signal acquisition of field switching value.
6. The device of claim 1, wherein the rectified power supply thyristor pulse controller is a direct current speed regulation driver, and is used for performing data acquisition, operation, generating a thyristor trigger pulse sequence, and performing triggering and protection of a thyristor of the rectified power supply.
7. The apparatus of claim 1, wherein the rectified mains thyristor pulse controller feeds back the output current, voltage to the PLC master station via a Profibus-DP bus.
8. The apparatus of claim 1, wherein the rectified power supply relay unit comprises an intermediate relay, a miniature circuit breaker and a contactor for operating switching variables of the rectified power supply to enable rectified power supply state selection and switching.
9. The device of claim 1, wherein the rectified power supply is a high power direct current power supply adopting thyristor rectification technology, the designed power is 63MW, and different power supply modes are output through switch cabinet combination.
10. The apparatus of claim 1, wherein the combined arc heater is two tube arc heaters, two electric arcs are generated simultaneously, and the high voltage is generated by the combined action of the mixing chamber, and the low enthalpy heat environment operation power reaches 50 MW-70 MW magnitude.
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| CN202011606291.0A CN112701938B (en) | 2020-12-28 | 2020-12-28 | Rectifier power supply control device of combined arc heater |
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| CN202011606291.0A CN112701938B (en) | 2020-12-28 | 2020-12-28 | Rectifier power supply control device of combined arc heater |
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| CN112701938B CN112701938B (en) | 2022-03-29 |
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