Power supply and system for nuclear fusion field anti-configuration

Abstract

The utility model discloses a power supply and a system used for nuclear fusion field anti-configuration. The power supply comprises a DC power supply, an inverter, a multi-output isolation transformer and N resonant branches. The direct-current power supply is electrically connected with the inverter; the inverter is used for converting the direct current into alternating current; the inverter is connected with the input end of the multi-output isolation transformer; and a plurality of output ends of the multi-output isolation transformer are respectively connected with one resonant branch. Structural improvement is carried out on the basis of a traditional field inversion configuration power supply technology, the charging function of capacitors of all branches of a coil is achieved through a transformer, all the branches are isolated from one another in the charging process, and mutual interference and influence are avoided; and meanwhile, the safety of other branches is not influenced when a single branch fails or is damaged in the working process.

Description

Technical Field

[0001] This utility model relates to nuclear fusion power sources, specifically to a power source and system for reverse configuration in nuclear fusion fields. Background Technology

[0002] Deuterium-deuterium and deuterium-tritium fusion are two common forms of nuclear fusion reactions with potential energy utilization value. Nuclear fusion refers to the process by which two lighter atomic nuclei (such as deuterium and tritium nuclei) combine under high temperature and pressure to form a heavier atomic nucleus and release energy. This is how the Sun and other stars continuously generate energy.

[0003] With the ever-increasing global demand for clean energy, the research significance and application prospects of deuterium-deuterium and deuterium-tritium nuclear fusion as potential energy sources are attracting increasing attention. It is estimated that nuclear fusion could meet humanity's energy needs for millions of years.

[0004] Fusion fuels are abundant and readily available: deuterium can be cheaply extracted from seawater, while tritium can be produced using abundant natural lithium. Unlike traditional reactors that use uranium and plutonium fission materials, deuterium-deuterium and deuterium-tritium fusion reactors do not produce highly radioactive, long-term nuclear waste. Fusion reactors will not experience core meltdown due to uncontrollable high temperatures caused by nuclear reactions. If the situation gets out of control, the fusion reaction will immediately terminate, preventing irreparable damage.

[0005] Nuclear fusion does not produce greenhouse gases such as carbon dioxide, making it environmentally friendly and a clean, controllable, and safe energy source. Deuterium-deuterium or deuterium-tritium nuclear fusion can play a role in mitigating climate change in the future as a clean energy source. Utility Model Content

[0006] The technical problem this invention aims to solve is that traditional field inversion devices experience significant mutual interference when charging the capacitors of each branch, and a failure in one branch can have a substantial impact on other branches. This invention aims to provide a power supply and system for nuclear fusion field inversion, improving upon traditional field inversion power supply technology by using a transformer to charge the capacitors of each branch of the coil. Furthermore, the charging process isolates each branch from the others, preventing mutual interference and impact. Simultaneously, if a single branch fails or is damaged during operation, the safety of other branches remains unaffected.

[0007] This utility model is achieved through the following technical solution:

[0008] This solution provides a power supply for reverse configuration of a nuclear fusion field, including: a DC power supply, an inverter, a multi-output isolation transformer, and N resonant branches;

[0009] The DC power supply is electrically connected to the inverter and is used to provide DC power; the inverter is used to convert DC power into AC power.

[0010] The inverter is connected to the input terminal of the multi-output isolation transformer;

[0011] The multiple output terminals of the multi-output isolation transformer are each connected to a resonant branch. Specifically, the multiple output terminals of the multi-output isolation transformer are each connected to the pulse capacitor of each branch to charge each capacitor.

[0012] Traditional field inversion devices suffer from significant mutual interference when charging capacitors in each branch; a fault in one branch can severely impact other branches. This invention aims to provide a power supply and system for nuclear fusion field inversion. Based on traditional field inversion power supply technology, it improves the structure by using a transformer to charge the capacitors in each branch of the coil. Furthermore, it isolates each branch from the others during charging, preventing mutual interference and impact. Simultaneously, if a single branch fails or is damaged during operation, the safety of other branches remains unaffected.

[0013] The further optimized solution also includes a venting branch and an angular clamping coil;

[0014] The output terminals of the N resonant branches are electrically connected to the discharge branch, and the discharge branch is electrically connected to the angular clamping coil.

[0015] A further optimized solution is that the discharge branch includes a resistor.

[0016] A further optimized solution is that the resonant branch includes a capacitor, a first switch, a second switch, and a rectifier;

[0017] One end of the rectifier is electrically connected to the output terminal of the multi-output isolation transformer, and the other end is electrically connected to the first switch;

[0018] The first switch is connected in series with a capacitor;

[0019] The second switch is connected to a capacitor at one end and serves as the output terminal of the resonant branch at the other end.

[0020] A further optimized solution is that the inverter includes a single-phase bridge arm inverter, a three-phase bridge arm inverter, or a DC pulse power supply.

[0021] A further optimized scheme is as follows: N=3, and the N resonant branches include: field reversal branch, pre-ionization branch and bias branch.

[0022] A further optimized solution is that the multi-output isolation transformer includes three output terminals, which are respectively connected to the field reversal branch, the pre-ionization branch, and the bias branch.

[0023] A further optimized solution includes a control module, which controls the on / off state of the first and second switches in each resonant branch according to instructions.

[0024] A further optimization scheme is that the control module includes: Ethernet, CAN bus, RS485 bus, Wi-Fi module or Bluetooth module, etc.

[0025] This solution also provides a power supply system for inverted configuration of a nuclear fusion field, including the power supply for inverted configuration of a nuclear fusion field described above.

[0026] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0027] This invention provides a power supply and system for inverted configuration in nuclear fusion fields. Based on traditional inverted configuration power supply technology, it improves the structure by using a transformer to charge the capacitors of each branch of the coil. During the charging process, each branch is isolated from the others to avoid mutual interference and influence. At the same time, if a single branch fails or is damaged during operation, the safety of other branches is not affected. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 A schematic diagram of the power supply structure in the inverse configuration of a nuclear fusion field;

[0030] Figure 2 This is a schematic diagram of a traditional field inversion configuration device. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0032] Field inversion configuration is a common confined plasma configuration. Angular pinching (θ-pinch) is the most traditional and common method for forming field inversion configurations, such as... Figure 2As shown, the traditional field-inverting configuration device mainly consists of four electrical branches (①, ②, ③, ④), a magnet coil ⑤, and a vacuum chamber ⑥. Each branch consists of a capacitor and a switch. Branch ① is the field-inverting branch; branch ② is the pre-ionization branch; branch ③ is the bias branch; and branch ④ is the freewheeling / energy-discharging branch. The sequential discharge of the coils by the four branches corresponds to the four stages of the field-inverting plasma formation process. The θ-pinch coil ⑤ of the field-inverting configuration can be regarded as an inductor. The function of branch ① is to generate a reversing magnetic field; the function of branch ② is to ionize neutral gas at high frequency to form plasma; the function of branch ③ is to generate a bias magnetic field in the quartz tube; during the sequential operation of the first three branches, branch ④ is in the off state. After the operation of the preceding branches is completed, branch ④ is turned on, providing a release path for the energy stored in the θ-pinch coil inductance (branch 5).

[0033] Traditional field-reversing configuration devices contain four branches, with each branch (1, 2, and 3) containing capacitors of varying electrical parameters. During operation, different charging circuits are required to pre-charge these capacitors before driving the switching transistors to close the circuit. This causes the capacitors in these branches to resonate with the inductance of the coils, generating sufficient current and voltage spikes. These charging circuits make the system more complex and bulky, with cumbersome wiring, prone to poor contact and short circuits between different branches. Considering the complexity of the device, traditional field-reversing configuration devices contain multiple sets of coils. If each set of coils requires multiple branch circuits, the system, including the corresponding charging circuits for each branch, becomes extremely large and complex. Furthermore, system safety and operational safety issues arise.

[0034] Example 1

[0035] This embodiment provides a power source for reverse configuration of nuclear fusion fields, such as... Figure 1 As shown, it includes: DC power supply, inverter, multi-output isolation transformer, and N resonant branches;

[0036] The DC power supply is electrically connected to the inverter to provide DC power; the inverter is used to convert DC power into AC power; this provides the necessary conditions for achieving transformer electrical isolation and energy transmission.

[0037] The inverter is connected to the input terminal of the multi-output isolation transformer;

[0038] The multiple output terminals of the multi-output isolation transformer are each connected to a resonant branch. Specifically, the multiple output terminals of the multi-output isolation transformer are each connected to the pulse capacitor of each branch to charge each capacitor.

[0039] It also includes a discharge branch and an angular clamping coil;

[0040] The output terminals of the N resonant branches are electrically connected to the discharge branch, and the discharge branch is electrically connected to the angular clamping coil.

[0041] The discharge branch includes a resistor.

[0042] The resonant branch includes a capacitor, a first switch, a second switch, and a rectifier;

[0043] One end of the rectifier is electrically connected to the output terminal of the multi-output isolation transformer, and the other end is electrically connected to the first switch;

[0044] The first switch is connected in series with a capacitor;

[0045] The second switch is connected to a capacitor at one end and serves as the output terminal of the resonant branch at the other end.

[0046] The inverter includes a single-phase bridge arm inverter, a three-phase bridge arm inverter, or a DC pulse power supply.

[0047] N=3, and the N resonant branches include: a field reversal branch, a pre-ionization branch, and a bias branch. In practical applications, multiple coils may be connected in parallel simultaneously, and each coil needs to be configured with these three circuits.

[0048] The multi-output isolation transformer includes three output terminals, which are respectively connected to the field reversal branch, the pre-ionization branch, and the bias branch.

[0049] It also includes a control module, which controls the on / off state of the first and second switches in each resonant branch according to instructions.

[0050] The control module includes Ethernet, CAN bus, RS485 bus, Wi-Fi module or Bluetooth module, etc., depending on actual needs.

[0051] The DC input power is converted by an inverter or pulsed DC source, and then the energy is transferred to the capacitors of multiple branches via a transformer. Through the switching timing, the capacitors of each branch and the θ-pinch coil achieve second-order resonance, generating sufficient current rate of change (di / dt), current peak, and voltage peak. Under these conditions, the gas in the vacuum chamber forms plasma, eventually creating a field-inverse structure. Then, by controlling the power system's operating state, a sufficiently strong magnetic field is generated in the coil to confine the formed plasma. The smooth changes in current and magnetic field at each stage create suitable conditions for the final nuclear fusion reaction.

[0052] Taking branch 1 as an example, the transformer output is rectified by rectifier 1. When switch 11 is in the off state, the transformer output cannot charge capacitor 1; when switch 11 is in the on state, the transformer output can charge capacitor 1. When capacitor 1 is fully charged, if the host computer issues a command to start working, first open switch 11, then close switch 12. At this time, the capacitor rapidly releases its charge, similar to a step voltage. In this circuit, capacitor 1 and the θ-pinch coil (inductor) form a typical second-order resonant circuit.

[0053] After the capacitor in branch 1 has discharged its charge, the energy is stored in the inductor. At this time, switch 12 needs to be turned off and the switch of the bleeder branch needs to be closed, so that the energy of the inductor can be released through the bleeder branch. The energy is mainly consumed by the resistance in the bleeder branch circuit, and the loss exists in the form of heat. The working principle of branches 2 and 3 is similar to that of branch 1, except that the electrical parameters and the working sequence are different.

[0054] This solution achieves electrical isolation of the charging process of the three branches through a transformer. 1. During charging, the multiple branches are isolated from each other, thereby avoiding mutual interference between the multiple branches; under necessary conditions, the transformer can simultaneously charge the capacitors of multiple branches, reducing the number of operation steps and increasing the operating frequency.

[0055] Example 2

[0056] This embodiment provides a power supply system for inverted configuration of a nuclear fusion field, including the power supply for inverted configuration of a nuclear fusion field described in Embodiment 1. Based on a transformer, it realizes the charging function of several different branches (1, 2, 3) of the coil, while isolating each branch from each other during charging to avoid mutual interference and influence. This solution can also be applied to the charging function of different branch capacitors of multiple coils within a device, and can also adapt to designs with more branches (1, 2, 3...n) in the same coil. Electrical isolation is achieved between each branch, so even if one branch fails or is damaged during operation, the safety of other branches is not affected.

[0057] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A power supply for a nuclear fusion field-reversed configuration, characterized by, The power supply comprises: a direct current power supply, an inverter, a multi-output isolation transformer, and N resonance branches; the direct current power supply is electrically connected with the inverter, and is configured to provide a direct current power supply; the inverter is configured to convert the direct current into an alternating current; the inverter is connected with an input end of the multi-output isolation transformer; a plurality of output ends of the multi-output isolation transformer are respectively connected with one resonance branch.

2. A power supply for a nuclear fusion field-reversed configuration according to claim 1, wherein, The power supply further comprises a bleeding branch and an angular pinch coil. Output ends of the N resonance branches are electrically connected with the bleeding branch, and the bleeding branch is electrically connected with the angular pinch coil.

3. A power supply for a nuclear fusion field-reversed configuration according to claim 2, wherein, The bleeding branch comprises a resistor.

4. A power supply for a nuclear fusion field-reversed configuration according to claim 1, wherein, The resonance branch comprises a capacitor, a first switch, a second switch, and a rectifier. One end of the rectifier is electrically connected with an output end of the multi-output isolation transformer, and the other end of the rectifier is electrically connected with the first switch. The first switch is connected with the capacitor in series. One end of the second switch is connected with the capacitor, and the other end of the second switch is configured as an output end of the resonance branch.

5. A power supply for nuclear fusion field-reversed configurations as defined in claim 1, wherein, The inverter comprises a single-phase bridge arm inverter, a three-phase bridge arm inverter, or a direct current pulse power supply.

6. A power supply for nuclear fusion field-reversed configurations as defined in claim 1, wherein, N=3, and the N resonance branches comprise a field reversal branch, a pre-ionization branch, and a bias branch.

7. A power supply for a nuclear fusion field-reversed configuration according to claim 6, wherein, The multi-output isolation transformer comprises three output ends, and the three output ends are respectively connected with the field reversal branch, the pre-ionization branch, and the bias branch.

8. A power supply for a nuclear fusion field-reversed configuration according to claim 4, wherein, The power supply further comprises a control module configured to control on-off of the first switch and the second switch in each resonance branch according to an instruction.

9. A power supply for a nuclear fusion field-reversed configuration according to claim 8, wherein, The control module comprises an Ethernet, a CAN bus, an RS485 bus, a wifi module, or a Bluetooth module.

10. A power system for a nuclear fusion field-reversed configuration, characterized by, The power supply comprises any one of claims 1-9. The power supply is used for a nuclear fusion field configuration.

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