Power supply module, power supply system and nuclear fusion reaction system

Abstract

The invention provides a power supply module, a power supply system and a nuclear fusion reaction system. The power supply module comprises a high-voltage DC power supply, a high-voltage capacitor unit, a thyristor, a first switch and a fly-wheel diode. The positive electrode of the high-voltage direct-current power supply is connected with the first end of the first switch, the second end of the first switch is connected with the first end of the high-voltage capacitor unit, and the negative electrode of the high-voltage direct-current power supply is connected with the second end of the high-voltage capacitor unit; the first end of the high-voltage capacitor unit is also connected with the anode of the thyristor, the cathode of the thyristor is connected with the output end of the fly-wheel diode, and the second end of the high-voltage capacitor unit is also connected with the input end of the fly-wheel diode; the second end of the high-voltage capacitor unit and the cathode of the thyristor are respectively connected with two ends of a load unit; the power supply module can generate large pulse current, and meets the requirements of a nuclear fusion reaction device.

Description

Technical Field

[0001] The present application relates to the field of power electronics technology, and in particular to a power module, a power system and a nuclear fusion reaction system. Background Art

[0002] With the development of electronic technology, there are more and more electronic devices with various functions, and electronic devices with different functions have different requirements for current.

[0003] For example, in a nuclear fusion reaction device, a large pulse current needs to be transmitted to the coil to cause a change in the electromagnetic field around the coil to generate plasma, and then the plasma is heated to the fusion reaction temperature to cause a fusion reaction.

[0004] However, current power supplies can usually only generate a relatively small current, which is difficult to meet the requirements of nuclear fusion reaction devices. Therefore, a power supply that can generate a relatively large pulse current is urgently needed. Summary of the invention

[0005] In view of this, the present application provides a power module, a power system and a nuclear fusion reaction system, which can generate a large pulse current to meet the needs of nuclear fusion reactions.

[0006] According to one aspect of an embodiment of the present application, a power supply module is provided, the power supply module comprising: a high-voltage direct current power supply, a high-voltage capacitor unit, a thyristor, a first switch and a freewheeling diode;

[0007] The positive electrode of the high-voltage DC power supply is connected to the first end of the first switch, the second end of the first switch is connected to the first end of the high-voltage capacitor unit, and the negative electrode of the high-voltage DC power supply is connected to the second end of the high-voltage capacitor unit;

[0008] The first end of the high-voltage capacitor unit is also connected to the anode of the thyristor, the cathode of the thyristor is connected to the output end of the freewheeling diode, and the second end of the high-voltage capacitor unit is also connected to the input end of the freewheeling diode;

[0009] The second end of the high-voltage capacitor unit and the cathode of the thyristor are also used to connect two ends of a load unit respectively.

[0010] In one embodiment, the high-voltage capacitor unit supports outputting a voltage of 10 kilovolts, and the thyristor supports transmitting a voltage of 10 kilovolts;

[0011] And / or, the high-voltage capacitor unit supports outputting a current of 10 kiloamperes, and the thyristor supports transmitting a current of 10 kiloamperes.

[0012] In one embodiment, the high-voltage capacitor unit includes a plurality of high-voltage capacitors connected in parallel.

[0013] In one embodiment, the power module further includes: an anti-reverse diode;

[0014] The positive electrode of the high-voltage DC power supply is connected to the first end of the first switch through the anti-reverse diode, the positive electrode of the high-voltage DC power supply is connected to the input end of the anti-reverse diode, and the first end of the first switch is connected to the output end of the anti-reverse diode.

[0015] In one embodiment, the power module further includes: a second switch and a first resistor, wherein a first end of the second switch is connected to a first end of the first resistor;

[0016] Two ends of the high-voltage capacitor unit are also connected to the second end of the second switch and the second end of the first resistor respectively.

[0017] In one embodiment, the power module further includes: a second resistor;

[0018] The cathode of the thyristor is connected to the first end of the second resistor, and the second end of the second resistor is used to connect to the load unit.

[0019] In one embodiment, the power module further includes: a current detection unit;

[0020] The first end of the high-voltage capacitor unit is connected to the anode of the thyristor through the current detection unit; or, the cathode of the thyristor is used to connect to the load unit through the current detection unit.

[0021] In one embodiment, the power module further includes: a voltage detection unit;

[0022] The second end of the high-voltage capacitor unit and the cathode of the thyristor are also connected to the two ends of the voltage detection unit respectively.

[0023] In one embodiment, the power module further includes: a control board and a drive board;

[0024] The control board is connected to the high-voltage DC power supply and the first switch; the control board is used to control the power supply of the high-voltage DC power supply and control the opening and closing of the first switch;

[0025] The driving board is connected to the thyristor and is used to control the on and off of the thyristor.

[0026] In one embodiment, the components in the power module are connected via a copper bus structure.

[0027] In one embodiment, the power module further includes: an insulating frame, the insulating frame includes a plurality of storage compartments, and each high-voltage capacitor is located in a different storage compartment.

[0028] According to another aspect of an embodiment of the present application, a power supply system is provided, the power supply system comprising: a host computer, a serial port server and at least one of the above-mentioned power supply modules;

[0029] The host computer is connected to the serial port server, and the host computer is used to control the power module through the serial port server.

[0030] In one embodiment, the power supply system further includes: a timer, the timer being connected to the serial port server;

[0031] The host computer is used to send the power supply time information of each power module to the timer through the serial port server, and the timer is used to control the at least one power module to supply power to the load unit based on the power supply time information.

[0032] In one embodiment, the at least one power module includes a plurality of power modules connected in parallel.

[0033] According to another aspect of the embodiment of the present application, a nuclear fusion reaction system is provided, the nuclear fusion reaction system comprising: a tokamak device and the above-mentioned power supply system;

[0034] The power supply system is connected to the tokamak device and is used to send pulse current to the poloidal magnetic field coil in the tokamak device;

[0035] The poloidal magnetic field coil is used to: generate a magnetic field based on the pulse current, wherein the magnetic field surrounds the poloidal magnetic field coil to ionize the breakdown gas to form two initial plasma rings; promote the fusion of the two initial plasma rings into one plasma ring and the reconnection of the magnetic field around the plasma ring, so as to heat the plasma in the plasma ring to the fusion reaction temperature to generate a fusion reaction.

[0036] In the power supply module provided in the embodiment of the present application, the high-voltage capacitor unit is charged by a high-voltage DC power supply, and then the first switch can be disconnected and the thyristor can be turned on, and the high-voltage capacitor unit is discharged to the load unit until the power of the high-voltage capacitor unit is exhausted, so that the input of a pulse current to the load unit can be realized. And because the high-voltage capacitor unit and the thyristor have a relatively large tolerable voltage, it can be ensured that the pulse current input to the load unit when the high-voltage capacitor unit is discharged is relatively large, which can meet the current requirements of the nuclear fusion device. In addition, the freewheeling diode plays a freewheeling role for the load unit, which can avoid the situation where a sudden voltage is generated at both ends of the load unit and causes damage to the load unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of a circuit structure of a power module provided by an embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of the circuit structure of another power supply module provided in one embodiment of the present application;

[0039] Figure 3 This is a structural diagram of another power supply module provided in one embodiment of the present application;

[0040] Figure 4 This is a schematic diagram of the physical structure of a power module provided in one embodiment of the present application;

[0041] Figure 5 is a structural schematic diagram of a power supply system provided by an embodiment of the present application;

[0042] Figure 6 It is a structural schematic diagram of another power supply system provided in one embodiment of the present application. DETAILED DESCRIPTION

[0043] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0044] The terms used in one or more embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present application. The singular forms of "one", "said" and "the" used in one or more embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items. The term "at least one" in one or more embodiments of the present application refers to "one or more", and "multiple" refers to "two or more". The term "including" is an open description and should be understood as "including but not limited to", and may include other content on the basis of the content described.

[0045] It should be understood that, although the terms "first", "second", etc. may be used to describe various information in one or more embodiments of the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present application, "first" may also be referred to as "second", and similarly, "second" may also be referred to as "first". Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0046] In the field of electronic technology, various electronic devices require power supply devices to supply power, and the power supplies required by different electronic devices may be different. The power supply required for a nuclear fusion reaction device is different from the power supply required for ordinary electronic devices. For example, a nuclear fusion reaction device may include a spherical tokamak (ST) device and a compact torus (CT) device. Due to the shape restrictions of the nuclear fusion reaction device, a central column is usually not set or the setting space of the central column is too narrow. Instead, a traditional central solenoid is set in the nuclear fusion reaction device to generate plasma by solenoid induction. In this case, it is usually difficult to obtain a plasma current of the megaampere (MA) level; therefore, it is crucial to study the starting method of discharging to generate plasma without a central solenoid to improve the plasma parameters (such as current) of the nuclear fusion reaction device.

[0047] At present, the startup method of merging-compression (MC) plasma has gradually attracted attention. In this method, a pair of poloidal magnetic field coils inside the nuclear fusion reaction device need to generate current pulses to cause rapid changes in the surrounding electromagnetic field, so that the magnetic field surrounds the coil to ionize the breakdown gas to form a pair of plasma rings. After that, the plasma rings are promoted to merge and the surrounding magnetic fields are reconnected. The conversion characteristics of magnetic energy to plasma kinetic energy and thermal energy during magnetic reconnection are used to heat the plasma and increase the plasma current. Accordingly, it is necessary to design a corresponding MC power supply to provide the pulse current required in the startup method of the MC plasma.

[0048] The embodiment of the present application provides a power supply module that can output a large pulse current, such as outputting the pulse current to the poloidal magnetic field coil in a nuclear fusion reaction device, so that the nuclear fusion reaction device can implement a MC plasma startup method. The embodiment of the present application also relates to a power supply system and a nuclear fusion reaction system.

[0049] Figure 1 1 is a schematic diagram of a circuit structure of a power module provided in an embodiment of the present application. Figure 1 As shown, the power module 10 includes a high-voltage DC power supply U, a high-voltage capacitor unit C, a thyristor T, a freewheeling diode D1 and a first switch K1. The switch in the embodiment of the present application may also be referred to as a contactor.

[0050] Among them, the positive electrode of the high-voltage DC power supply U is connected to the first end of the first switch K1, the second end of the first switch K1 is connected to the first end of the high-voltage capacitor unit C, and the negative electrode of the high-voltage DC power supply U is connected to the second end of the high-voltage capacitor unit C. The first end of the high-voltage capacitor unit C is also connected to the anode of the thyristor T, the cathode of the thyristor T is connected to the output end of the freewheeling diode D1, and the second end of the high-voltage capacitor unit C is also connected to the input end of the freewheeling diode D1. The second end of the high-voltage capacitor unit C and the cathode of the thyristor T are also used to connect the two ends of the load unit respectively.

[0051] The high-voltage DC power supply U is used to charge the high-voltage capacitor unit C. After charging, the high-voltage capacitor unit C can be used as an energy storage device to generate high voltage and high current, and then output current to the load unit. The control end of the thyristor T can be connected to the control unit so that the control unit can control the on and off of the thyristor T.

[0052] The freewheeling diode D1 can be connected in parallel with the load unit to play a freewheeling role for the load unit. When the current in the main circuit of the power supply (such as the circuit composed of the high-voltage capacitor unit C, the thyristor T and the load unit) changes suddenly, the freewheeling diode D1 can make the current on the load unit change more smoothly, avoiding the situation where a sudden voltage is generated at both ends of the load unit and causes damage to the load unit.

[0053] For example, the first switch K1 can be closed first, so that the high-voltage DC power supply U, the first switch K1 and the high-voltage capacitor unit C form a first current loop, and the high-voltage DC power supply U can charge the high-voltage capacitor unit C. After the high-voltage capacitor unit C is charged to a specified voltage, the high-voltage DC power supply U is controlled to stop outputting, and the first switch K1 is controlled to be disconnected to stop charging the high-voltage capacitor unit C. Afterwards, the thyristor T can be controlled to be turned on, so that the high-voltage capacitor unit C, the thyristor T and the load unit form a second current loop, at which time the high-voltage capacitor unit C can be discharged to output a higher current to the load unit. In the process of outputting current to the load unit, the voltage on the high-voltage capacitor unit C gradually decreases. When the voltage drop on the high-voltage capacitor unit C is 0, the current output to the load unit can be stopped. When the high-voltage capacitor unit C discharges to the load unit until its voltage drop is 0, the freewheeling diode D1 can be used to freewheel the load unit, so that the current on the load unit slowly decreases, and the current on the load unit is prevented from changing suddenly. This is equivalent to outputting a current pulse to the load unit, which can also be called a pulse current output to the load unit.

[0054] Since the high-voltage capacitor unit C and the thyristor T have a high withstand power, the high-voltage DC power supply U can output a higher voltage to the high-voltage capacitor unit C, and the high-voltage capacitor unit C can output a higher voltage and current to the load unit. In some embodiments, the high-voltage capacitor unit C supports outputting a voltage of 10 kilovolts, and the thyristor T supports transmitting a voltage of 10 kilovolts. In some embodiments, the high-voltage capacitor unit C supports outputting a current of 10 kiloamperes, and the thyristor T supports transmitting a current of 10 kiloamperes.

[0055] For example, the thyristor T can be replaced by a thyristor valve group. The high-voltage capacitor unit C can be a high-voltage film capacitor unit. The high-voltage capacitor unit C can include only one high-voltage capacitor, or can also include multiple high-voltage capacitors connected in parallel. The high-voltage capacitor can be a high-voltage film capacitor.

[0056] By connecting multiple high-voltage capacitors in parallel, the high-voltage capacitor unit C can output a higher level of current, which can meet the different needs of the nuclear fusion reaction device. In the embodiment of the present application, high-voltage film capacitors are used as energy storage devices, which can enable the power module to have a higher current change rate (di / dt) capability, ensure the stability and reliability of the power module, and ensure that the power module is not prone to explosions and other accidents.

[0057] In the embodiment of the present application, the load unit is taken as a coil L, and the internal resistance of the coil L can be relatively small. For example, the coil L can be a poloidal magnetic field coil in a nuclear fusion reaction device, and the power module 10 can supply power to the nuclear fusion reaction device. In some embodiments, the load unit can also be other electrical equipment, and the power module 10 can also provide current to other devices that require high voltage and high current.

[0058] In summary, in the power supply module provided by the embodiment of the present application, the high-voltage capacitor unit is charged by a high-voltage DC power supply, and then the first switch can be disconnected and the thyristor can be turned on, and the high-voltage capacitor unit is discharged to the load unit until the power of the high-voltage capacitor unit is exhausted, so that the input of a pulse current to the load unit can be realized. And because the high-voltage capacitor unit and the thyristor have a relatively large tolerable voltage, it can be ensured that the pulse current input to the load unit when the high-voltage capacitor unit is discharged is relatively large, which can meet the current requirements of the nuclear fusion device. In addition, the freewheeling diode plays a freewheeling role for the load unit, which can avoid the situation where a sudden voltage is generated at both ends of the load unit and causes damage to the load unit.

[0059] Figure 2 FIG. 1 is a schematic diagram of a circuit structure of another power module provided in an embodiment of the present application. Figure 2 As shown, in Figure 1 Based on the structure shown, the power module 10 may further include other additional components.

[0060] In some embodiments, the power module 10 may further include an anti-reverse diode D2, which is located between the high-voltage DC power supply U and the high-voltage capacitor unit C. The anti-reverse diode D2 can prevent the high-voltage DC power supply U from charging the high-voltage capacitor unit C in reverse. If the circuit connection between the high-voltage DC power supply U and the high-voltage capacitor unit C is incorrect, the high-voltage capacitor unit C cannot be charged.

[0061] For example, the anti-reverse diode D2 is located between the high-voltage DC power supply U and the first switch K1. Figure 2 As shown, the positive electrode of the high-voltage DC power supply U is connected to the first end of the first switch K1 through the anti-reverse diode D2, the positive electrode of the high-voltage DC power supply U is connected to the input end of the anti-reverse diode D2, and the first end of the first switch K1 is connected to the output end of the anti-reverse diode D2.

[0062] In another implementation of the anti-reverse diode D2, the anti-reverse diode D2 can also be located between the first switch K1 and the high-voltage capacitor unit C, such as the second end of the first switch K1 is connected to the input end of the anti-reverse diode D2, and the output end of the anti-reverse diode D2 is connected to the first end of the high-voltage capacitor unit C.

[0063] In another implementation of the anti-reverse diode D2, the cathode of the high-voltage DC power supply U is connected to the second end of the high-voltage capacitor unit C through the anti-reverse diode D2. For example, the output end of the anti-reverse diode D2 is connected to the cathode of the high-voltage DC power supply U, and the input end of the anti-reverse diode D2 is connected to the second end of the high-voltage capacitor unit C.

[0064] In some embodiments, please continue to refer to Figure 2 ,exist Figure 1 On the basis of the structure shown, the power module 10 may further include: a second switch K2 and a first resistor R1. The second switch K2 is connected in series with the first resistor R1 and in parallel with the high-voltage capacitor unit C. For example, the first end of the second switch K2 is connected to the first end of the first resistor R1, and the two ends of the high-voltage capacitor unit C are also connected to the second end of the second switch K2 and the second end of the first resistor R1, respectively. The positions of the second switch K2 and the first resistor R1 may also be interchanged, which is not limited in the embodiment of the present application. For example, the first resistor R1 may be a wire-wound resistor.

[0065] The first resistor R1 can be used to discharge the voltage of the high-voltage capacitor unit C. In the process of the high-voltage capacitor unit C discharging to the load unit, the second switch K2 can be in an open state. When the voltage on the high-voltage capacitor unit C drops to 0, there may still be some residual electric energy in the high-voltage capacitor unit. At this time, the second switch K2 can be closed to allow the first resistor R1 to discharge the residual electric energy in the high-voltage capacitor unit C.

[0066] In some embodiments, please continue to refer to Figure 2 ,exist Figure 1 On the basis of the structure shown, the power module 10 may further include: a second resistor R2. The second resistor R2 may be located in a second current loop formed by the high-voltage capacitor unit C, the thyristor T, and the load unit. The second resistor R2 may play a current limiting role in the second current loop to prevent excessive current in the second current loop, thereby causing damage to components in the second current loop.

[0067] For example, Figure 2 As shown, the second resistor R2 is located between the thyristor T and the load unit, the cathode of the thyristor T is connected to the first end of the second resistor R2, and the second end of the second resistor R2 is used to connect the load unit. For example, the second resistor R2 can be a water-cooled resistor. In another example, the second resistor R2 can also be located between the high-voltage capacitor unit C and the thyristor T, or between the high-voltage capacitor unit C and the load unit.

[0068] In some embodiments, please continue to refer to Figure 2 ,exist Figure 1 On the basis of the structure shown, the power supply module 10 may further include: a current detection unit 101. The current detection unit 101 may be located in a second current loop formed by a high-voltage capacitor unit C, a thyristor T, and a load unit to detect a current value in the second current loop. In the embodiment of the present application, the location of the current detection unit 101 in the second current loop is not limited.

[0069] For example, the first end of the high-voltage capacitor unit C is connected to the anode of the thyristor T through the current detection unit 101, that is, the current detection unit 101 is located between the high-voltage capacitor unit C and the thyristor T. For another example, Figure 2 As shown, the cathode of the thyristor T can be connected to the load unit through the current detection unit 101 , that is, the current detection unit 101 is located between the thyristor T and the load unit. Figure 2 Taking the current detection unit 101 being located between the thyristor T and the second resistor R2 as an example, the current detection unit 101 may also be located between the second resistor R2 and the load unit.

[0070] The current detection unit 101 may be a current sensor. The current detection unit 101 may periodically detect the current value in the second current loop and transmit the detected current value to the control unit. The control unit may control the display unit to display based on the current value, or adjust the working state of the components in the power module 10. If the current value does not reach the required current value, the control unit may control the high-voltage capacitor unit C to increase the output current.

[0071] In some embodiments, please continue to refer to Figure 2 ,exist Figure 1On the basis of the structure shown, the power supply module 10 may also include: a voltage detection unit 102. The voltage detection unit 102 is connected in parallel with the load unit, and is used to detect the voltage value in the second current loop. In the embodiment of the present application, there is no limitation on the setting position of the voltage detection unit 102 in the second current loop. For example, the second end of the high-voltage capacitor unit C and the cathode of the thyristor T are respectively connected to the two ends of the voltage detection unit 102. In another example, the two ends of the voltage detection unit 102 can be connected to the second end of the high-voltage capacitor unit C and the anode of the thyristor T, respectively.

[0072] The voltage detection unit 102 may be a voltage sampling board. The voltage detection unit 102 may periodically detect the voltage value in the second current loop and transmit the detected voltage value to the control unit. The operations that the control unit may perform based on the voltage value may refer to the above-mentioned related introduction about the current value, which will not be repeated here.

[0073] In the present application, only Figure 2 For example, Figure 1 The circuit structure of the power module 10 including additional components is illustrated on the basis of FIG. 1 , and the power module 10 includes five additional components, namely, the anti-reverse diode D2, the first resistor R1, the second resistor R2, the current detection unit 101, and the voltage detection unit 102. The power module 10 may also include only some of the five additional components, and accordingly, Figure 2 The circuit structure of the power module 10 in this case is obtained by removing other additional components that are not included. In the embodiment of the present application, no additional illustration is given for other optional circuit structures of the power module 10.

[0074] Figure 3 FIG. 1 is a schematic diagram of the structure of another power supply module provided in an embodiment of the present application. Figure 3 As shown, in the circuit structure of the power module 10 (with Figure 2 Based on the structure shown in FIG. 1 , the power module 10 may further include: a control board and a drive board. The control unit may include the control board and the drive board.

[0075] The control board can be connected to the high-voltage DC power supply U and the first switch K1. The control board is used to control the power supply of the high-voltage DC power supply U and control the opening and closing of the first switch K1. The control board can also be connected to the second switch K2, the current detection unit 101 and the voltage detection unit 102 to control the opening and closing of the second switch K2, and obtain the current value detected by the current detection unit 101 and the voltage value detected by the voltage detection unit 102. The drive board is connected to the thyristor T to control the conduction of the thyristor T. Figure 3 The dotted lines are used to indicate the connection relationship between the control board and the drive board and other components.

[0076] In the embodiment of the present application, the working process of the power supply module 10 may include: the control board first controls the first switch K1 to close, and controls the second switch K2 to open, and controls the high-voltage DC power supply U to charge the high-voltage capacitor unit C to a specified voltage. When the high-voltage capacitor unit C is charged, the control board controls the high-voltage DC power supply U to turn off the output and disconnect K1. The drive board controls the thyristor T to turn on, and at this time, the high-voltage capacitor unit C discharges the load unit until the voltage of the high-voltage capacitor unit C drops to 0. At this time, the control board controls the second switch K2 to close to discharge the residual voltage of the high-voltage capacitor unit C. In addition, in the stage after the voltage of the high-voltage capacitor unit C drops to 0, the freewheeling diode D1 continues the current to the load unit until the current on the load unit drops to 0. The load unit can be a poloidal magnetic field coil in a nuclear fusion reaction device, and the working process can be a stroke in the starting method of fusion compressed plasma in a nuclear fusion reaction device.

[0077] The above components in the power module 10 may belong to the main power part of the power module 10. The power module 10 may also include a mechanical structure part. Figure 4 is a schematic diagram of a physical structure of a power module provided in an embodiment of the present application. Figure 4 It is used to illustrate the mechanical structure of the power module 10.

[0078] like Figure 4 As shown, the components in the power module 10 can be connected through the copper bus structure 104 to reduce the noise in the power circuit formed by the components. For example, the high-voltage capacitor unit C includes a plurality of high-voltage capacitors connected in parallel. Figure 4 For example, the high-voltage capacitor unit C includes six high-voltage capacitors c' connected in parallel. The six high-voltage capacitors can be connected through the copper bus structure 104. Figure 4 The high-voltage capacitor unit C and the thyristor T, the thyristor T and the current detection unit 101 , and the second resistor R2 and the current detection unit 101 may also be connected through the copper bus structure 104 .

[0079] For example, Figure 4 The copper busbar structure connecting different components is distinguished and illustrated in the figure. For example, the positive electrode of each high-voltage capacitor c' can be connected to other components using the copper busbar structure 1041, the negative electrode of each high-voltage capacitor c' can be connected to other components using the copper busbar structure 1042, and the thyristor T and the current detection unit 101 and the second resistor R2 and the current detection unit 101 can be connected using the copper busbar structure 1043.

[0080] Please continue to refer to Figure 4The power module 10 may further include: an insulating frame 103, the insulating frame 103 includes a plurality of storage spaces, such as the storage space may include storage compartments, and each high-voltage capacitor c' in the high-voltage capacitor unit C may be located in a different storage compartment. The use of the insulating frame 103 may facilitate the combination of each high-voltage capacitor c' in the high-voltage capacitor unit C and ensure a good insulation effect between each component.

[0081] Other components in the power module 10 may also be located on the insulating frame 103. Figure 4 The middle thyristor T and the current detection unit 101 are located in the same storage compartment, the second resistor R2 is located in a storage compartment, and the first resistor R2 is located in a storage space. Figure 4 Other components in the power module 10 not shown in the figure may be located on the insulating frame 103 , or may be located outside the insulating frame 103 , such as being integrated into a chassis and then connected to components on the insulating frame 103 .

[0082] In summary, in the power supply module provided in the embodiment of the present application, the high-voltage capacitor unit is charged by the high-voltage DC power supply, and then the first switch can be disconnected and the thyristor can be turned on to discharge the high-voltage capacitor unit to the load unit until the power of the high-voltage capacitor unit is exhausted, so that the input of a pulse current to the load unit can be realized. And because the high-voltage capacitor unit and the thyristor have a relatively large withstand voltage, it can be ensured that the pulse current input to the load unit is relatively large when the high-voltage capacitor unit is discharged, which can meet the current requirements of the nuclear fusion device.

[0083] Figure 5 is a schematic diagram of a power supply system provided in one embodiment of the present application. Figure 6 is a schematic diagram of the structure of another power supply system provided by an embodiment of the present application. Figure 5 and Figure 6 As shown, the power supply system may include: a host computer 20, a serial port server 30 and at least one power supply module 10. The power supply module 10 may be Figures 1 to 4 Any of the power modules 10 shown.

[0084] Figure 5 The power system includes Figure 3 The power module 10 shown in FIG. Figure 6 As shown, the power supply system may include N power supply modules 10 connected in parallel, and the N power supply modules 10 may be connected in parallel with a load unit (such as a coil L), and N≥2. Figure 6 The specific structure of the power module 10 is not illustrated. Figure 5 and Figure 6The arrow direction of the connecting line between the components represents the information interaction relationship between the components. In the embodiment of the present application, when the power supply system includes multiple power modules 10, the high-voltage DC power supply U in each power module 10 can be shared, or can also be charged using an independent high-voltage DC power supply U, which is not limited here.

[0085] The host computer 20 is connected to the serial port server 30, and the host computer 20 is used to control the power module 10 through the serial port server 30. The host computer 20 is used to control the power module 10 to charge and discharge, and the serial port server 30 is used to send control information to each power module 10 and obtain information fed back by each power module 10 (such as the feedback current value and voltage value). For example, the control personnel can operate on the host computer 20 to control the charging and discharging process of the power module 10. The aforementioned control unit may include the host computer 20 and the serial port server 30.

[0086] In some embodiments, please continue to refer to Figure 5 and Figure 6 The power supply system may further include: a timer 40, which is connected to the serial port server 30. The host computer 20 is used to send the power supply time information of each power module 10 to the timer 40 through the serial port server 30, and the timer 40 is used to control each power module 10 to supply power to the load unit based on the power supply time information. In this way, the number of operations of the staff can be reduced and the operation process can be simplified.

[0087] For example, the power supply time information may include triggering the power module 1 to discharge at the first moment, and triggering the power module 2 to discharge at an interval of 2 seconds after the power module 1 has discharged. In this way, the timer 40 can send a driving signal to the driving board of the power module 1 at the first moment, so that the driving board drives the thyristor T in the power module 1 to conduct, so that the power module 1 discharges to the coil L. In addition, after sending the driving signal, the timer 40 also counts, and after the timing reaches 2 seconds, it sends a driving signal to the driving board of the power module 2, so that the driving board drives the thyristor T in the power module 2 to conduct, so that the power module 2 discharges to the coil L.

[0088] In some embodiments, a corresponding serial port server 30 may be provided for each power module 10. The host computer 20 may send control information for the corresponding power module 10 to each serial port server 30, and then each serial port server 30 controls the corresponding power module 10 to work. A corresponding timer 40 may also be provided for each power module 10, so that each timer 40 controls the corresponding power module 10 to work at a fixed time.

[0089] In the embodiment of the present application, the power supply system may include a plurality of power supply modules 10 connected in parallel, and the power supply system may utilize the plurality of power supply modules 10 to generate multiple high-voltage and high-current pulses in a short period of time. In this way, the power supply system may provide current to the nuclear fusion reaction device to ensure that the device realizes a multi-stroke nuclear fusion reaction, and may break down the gas multiple times to generate plasma. The power supply system may ensure that the method of triggering the nuclear fusion reaction device to perform a nuclear fusion reaction is relatively simple and the energy consumption caused is relatively low, thereby ensuring that the nuclear fusion reaction is relatively stable.

[0090] When the power supply system is used to supply power to the nuclear fusion reaction device, the host computer 20 can control the charging of the high-voltage capacitor units in the power modules 1 to N in sequence through the serial port server 30. When the voltage of each power module reaches the specified value, each power module can be controlled to discharge separately (such as controlling the power modules 1 to N to discharge in sequence, or controlling multiple power modules to discharge at the same time) to meet the needs of multi-stroke fusion. After any power module is discharged, the power module can be charged again.

[0091] The present application also provides a nuclear fusion reaction system in an embodiment, which may include: a nuclear fusion reaction device and the above-mentioned power supply system (such as Figure 5 and Figure 6 The power supply system is connected to the nuclear fusion reaction device. For example, the nuclear fusion reaction device is a tokamak device.

[0092] The tokamak device may include a pair of poloidal magnetic field coils, which may be connected in series. The power supply system is used to send a pulse current to the poloidal magnetic field coil, and the method of sending the pulse current may refer to the aforementioned introduction to the power supply module 10 and the power supply system. The poloidal magnetic field coil may generate a magnetic field based on the received pulse current, and the magnetic field may surround the poloidal magnetic field coil to ionize the breakdown gas to form two initial plasma rings. Then, the poloidal magnetic field coil may promote the fusion of the two initial plasma rings into one plasma ring, and the magnetic field around the plasma ring may be reconnected. During the magnetic reconnection process, magnetic energy may be converted into kinetic energy and thermal energy of the plasma, the plasma in the plasma ring may be heated, and the total plasma current may be significantly increased. When the plasma is heated to the fusion reaction temperature, a fusion reaction may occur.

[0093] The power supply system can utilize multiple power supply modules 10 connected in parallel to send current pulses to the poloidal magnetic field coils in the tokamak device multiple times, thereby realizing a multi-stroke nuclear fusion reaction in the tokamak device.

[0094] The above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0095] Those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application. In the above embodiments, the description of each embodiment has its own emphasis, and for parts not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0096] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The optional embodiments do not describe all the details in detail, nor do they limit the present application to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can understand and use the present application well.

Claims

1. A power module, characterized in that: The power supply module comprises: a high-voltage direct current power supply, a high-voltage capacitor unit, a thyristor, a first switch and a freewheeling diode; The positive electrode of the high-voltage DC power supply is connected to the first end of the first switch, the second end of the first switch is connected to the first end of the high-voltage capacitor unit, and the negative electrode of the high-voltage DC power supply is connected to the second end of the high-voltage capacitor unit; The first end of the high-voltage capacitor unit is also connected to the anode of the thyristor, the cathode of the thyristor is connected to the output end of the freewheeling diode, and the second end of the high-voltage capacitor unit is also connected to the input end of the freewheeling diode; The second end of the high-voltage capacitor unit and the cathode of the thyristor are also used to connect two ends of a load unit respectively.

2. The power module according to claim 1, characterized in that: The high-voltage capacitor unit includes a plurality of high-voltage capacitors connected in parallel.

3. The power module according to claim 1 or 2, characterized in that: The power supply module further includes: an anti-reverse diode; The positive electrode of the high-voltage DC power supply is connected to the first end of the first switch through the anti-reverse diode, the positive electrode of the high-voltage DC power supply is connected to the input end of the anti-reverse diode, and the first end of the first switch is connected to the output end of the anti-reverse diode.

4. The power module according to claim 1 or 2, characterized in that: The power module further includes: a second switch and a first resistor, wherein a first end of the second switch is connected to a first end of the first resistor; Two ends of the high-voltage capacitor unit are also connected to the second end of the second switch and the second end of the first resistor respectively.

5. The power module according to claim 1 or 2, characterized in that: The power module further includes: a second resistor; The cathode of the thyristor is connected to the first end of the second resistor, and the second end of the second resistor is used to connect to the load unit.

6. The power module according to claim 1 or 2, characterized in that: The power supply module also includes: a current detection unit; The first end of the high-voltage capacitor unit is connected to the anode of the thyristor through the current detection unit; or, the cathode of the thyristor is used to connect to the load unit through the current detection unit.

7. The power module according to claim 1 or 2, characterized in that: The power module also includes: a voltage detection unit; The second end of the high-voltage capacitor unit and the cathode of the thyristor are also connected to the two ends of the voltage detection unit respectively.

8. The power module according to claim 1 or 2, characterized in that: The power module also includes: a control board and a drive board; The control board is connected to the high-voltage DC power supply and the first switch; the control board is used to control the power supply of the high-voltage DC power supply and control the opening and closing of the first switch; The driving board is connected to the thyristor and is used to control the on and off of the thyristor.

9. The power module according to claim 1 or 2, characterized in that: The components in the power module are connected via a copper bus structure.

10. The power module according to claim 2, characterized in that: The power module further includes: an insulating frame, the insulating frame includes a plurality of storage compartments, and each high-voltage capacitor is located in a different storage compartment.

11. A power supply system, characterized in that: The power supply system comprises: a host computer, a serial port server and at least one power supply module, wherein the power supply module is the power supply module according to any one of claims 1 to 10; The host computer is connected to the serial port server, and the host computer is used to control the power module through the serial port server.

12. The power supply system according to claim 11, characterized in that: The power supply system further includes: a timer, the timer being connected to the serial port server; The host computer is used to send the power supply time information of each power module to the timer through the serial port server, and the timer is used to control the at least one power module to supply power to the load unit based on the power supply time information.

13. The power supply system according to claim 11, characterized in that: The at least one power module includes a plurality of power modules connected in parallel.

14. A nuclear fusion reaction system, characterized in that: The nuclear fusion reaction system comprises: a tokamak device and a power supply system according to any one of claims 11 to 13; The power supply system is connected to the tokamak device and is used to send pulse current to the poloidal magnetic field coil in the tokamak device; The poloidal magnetic field coil is used to: generate a magnetic field based on the pulse current, wherein the magnetic field surrounds the poloidal magnetic field coil to ionize the breakdown gas to form two initial plasma rings; promote the fusion of the two initial plasma rings into one plasma ring and the reconnection of the magnetic field around the plasma ring, so as to heat the plasma in the plasma ring to the fusion reaction temperature to generate a fusion reaction.

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