Particle accelerator coil / magnet power supply device

Abstract

The invention discloses a particle accelerator coil / magnet power supply device which comprises a case, and a first back plate, a second back plate, a plurality of control modules, a plurality of function modules and a plurality of bus power supply modules which are arranged in the case, and the first back plate and the second back plate are arranged in the case in a face-to-face manner; an inner cavity of the case is sequentially divided into a first compartment, a second compartment and a third compartment; the plurality of control modules are placed in the first compartment and connected with one another through the first back plate, the plurality of function modules are placed in the third compartment and connected to the second back plate, and the second compartment is located between the first back plate and the second back plate and is a wiring operation space; mode switching of different circuits and power supplies with different polarities is achieved by adjusting wires on the second backboard. According to the modular arrangement, the situation that the interior of the power supply is disordered due to the use of traditional wires is avoided, and the universality and the heat dissipation effect are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of particle accelerators, and in particular to a particle accelerator coil / magnet power supply device. Background Art

[0002] Most existing particle accelerator magnet power supplies on the market feature non-standard, integrated power supply designs. These designs are custom-built, using different functional components assembled on demand, making them challenging to debug. Due to the lack of unified standards, these designs lack universality, are characterized by a complex mix of technical systems, and exhibit complex structural and process control. Furthermore, these integrated power supply designs are typically compact, resulting in high power density and concentrated heat generation, leading to significant heat dissipation challenges. Improper heat dissipation can lead to excessively high temperatures within the chassis, compromising the performance and lifespan of the power supply, and even causing failure. Furthermore, limited space can complicate assembly, significantly increasing operational complexity and requiring the disassembly of multiple components for subsequent maintenance and upgrades, leading to increased maintenance costs. Internal components are connected using a variety of cables. The cramped space results in poorly arranged wiring, hindering air circulation. These complex cables are susceptible to electromagnetic interference, wear, and aging, leading to poor contact and signal transmission anomalies, impacting power supply performance. This, in turn, reduces the stability and reliability of particle accelerator operations, increasing the risk of downtime and the probability of interruptions. Summary of the Invention

[0003] To solve the technical problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a particle accelerator coil / magnet power supply device, propose the concept of a modular structure of the particle accelerator magnet power supply / coil power supply, and solve the structural problems of the existing non-standard integrated power supply.

[0004] The objectives of the present invention are achieved through the following technical solutions: A particle accelerator coil / magnet power supply device comprises a chassis and a first backplane and a second backplane disposed therein, a plurality of control modules, a plurality of functional modules, and a plurality of busbar power supply modules, wherein the first backplane and the second backplane are disposed face-to-face within the chassis, and the inner cavity of the chassis is sequentially divided into a first compartment, a second compartment, and a third compartment; the plurality of control modules are disposed in the first compartment and interconnected via the first backplane, the plurality of functional modules are disposed in the third compartment and respectively connected to the second backplane, and the second compartment is located between the first and second backplanes and serves as a wiring operation space; mode switching between different circuits and power supplies of different polarities is achieved by adjusting the wiring on the second backplane, or the overall function and output parameters of the power supply device are changed by changing the parameters of the modules.

[0005] Specifically, by changing the routing mode of the second backplane, the switching between the BUCK circuit and the H-bridge circuit is achieved in the circuit operation mode, and the switching between the unipolar power supply and the bipolar power supply is achieved in the function.

[0006] Specifically, the functional module includes a VAC board card, at least two CAP board cards, at least two power board cards, at least two driver board cards, a CRC absorption board card and an output sampling board card; the power board card and the driver board card are combined into a functional module, and shielding covers fixed by snaps are respectively installed on the outer layers of the power board card and the driver board card.

[0007] Preferably, the several functional modules are respectively connected to the second backplane through several quick-plug connection terminals, and the functional modules are independent of each other. The quick-plug connection terminals are connected to each other through copper busbars, and the connection switching between different functional modules is achieved by adjusting the connection method of the copper busbars.

[0008] Specifically, the busbar power supply module includes several DC power supplies; for a DC power supply that does not have a quick-plug structure, the DC power supply is connected to the second backplane via a copper busbar or a cable, thereby connecting the busbar power supply module to the functional module; for a DC power supply that has a quick-plug structure, a third backplane is provided, and the DC power supply with a quick-plug structure is connected to the third backplane via several quick-plug connection terminals, respectively. The third backplane is connected to the second backplane via a copper busbar, thereby connecting the busbar power supply module to the functional module.

[0009] Furthermore, the DC power supply without a quick-plug structure is a high-power power supply, which is arranged at the bottom of the chassis and below the functional module; the power of the DC power supply with a quick-plug structure is less than that of the DC power supply without a quick-plug structure, and the volume is also smaller than that of the DC power supply without a quick-plug structure. The DC power supply with a quick-plug structure is arranged next to the control module.

[0010] Furthermore, by adjusting the copper busbar connection method and / or the parameters of each module, different power supply output modes can be achieved, including:

[0011] Mode 1: One DC power supply and one H-bridge module are converted into two synchronous buck parallel outputs with unipolar output.

[0012] Mode 2: Two DC power supplies, one H-bridge module transforms into two synchronous buck parallel outputs, unipolar output;

[0013] Mode 3: Two DC power supplies, two H-bridge modules transform into four synchronous BUCK parallel outputs, unipolar output;

[0014] Mode 4: Two DC power supplies and two H-bridge modules are converted into two sets of synchronous buck series outputs, where each set of two synchronous bucks are connected in parallel, with unipolar outputs.

[0015] Mode 5: one DC power supply, one H-bridge module output, bipolar output;

[0016] Mode 6: Two DC power supplies and one H-bridge module in parallel, bipolar output;

[0017] Mode seven, two DC power supplies, two H-bridge modules in parallel output, bipolar output;

[0018] Mode eight, two DC power supplies, two H-bridge modules connected in series, bipolar output.

[0019] Furthermore, the control module and the functional module are both arranged in the chassis in the form of boards and installed in a quick-plug manner.

[0020] Specifically, the chassis is provided with a plurality of beams and a plurality of guide rails. The beams and the guide rails are vertically arranged in pairs to form a frame for fixing the control module and the functional module. The upper and lower sides of the board-type control module or functional module are respectively inserted into the upper and lower guide rails. When the control module or functional module needs to be replaced, the control module or functional module can be pulled out or installed along the guide rails by removing the corresponding panel of the chassis.

[0021] Furthermore, the control module includes a signal processing board, a control board and an ADC acquisition board. The ADC acquisition board samples the key input and output signals of the power supply with high precision and high speed, and sends them to the control board for calculation. The control board outputs relevant control signals to control the overall operation of the power supply. The signal processing board is used to handle the fault protection, fault interlocking and protection and processing of some analog sampling signals of the power supply; the first backplane and the second backplane are connected by a copper bus or a coaxial cable to realize the connection between the control module and the functional module.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] 1. The modular design of the present invention not only facilitates upgrading and modifying power supply systems but also avoids the cluttered interior of the power supply caused by traditional wiring. This allows for the planning of rational ventilation channels within the chassis, improving heat dissipation. By modularizing control components, functional components, and power supply components, the power supply's applicability is expanded. Mode switching between different circuits and power supplies of different polarities can be achieved by simply changing the wiring pattern, and the overall functionality and output parameters of the power supply can be modified by changing the module parameters.

[0024] 2. In the module layout within the power supply, the first and second backplanes divide the wiring space, providing ample space for easy operation while ensuring safe and rational wiring. Furthermore, the functional module and control module are separated, with the front half of the chassis housing the control module and the back half housing the functional module. This design prevents electromagnetic interference from the high current and high voltage in the power module on the control circuit, ensuring the stability and accuracy of the control circuit. Furthermore, power supply load fluctuations and temperature rise during operation may affect circuit operation. Separating the two improves overall system reliability.

[0025] 3. The copper busbar used in the present invention has high mechanical strength and is not easy to break or deform. In some harsh working environments or places with mechanical vibration, the copper busbar can maintain better connection due to its regular shape and size. The copper busbar is an integrally formed structure, which reduces the possibility of errors during installation and fixing. In addition, due to its large heat dissipation area, the heat dissipation performance is better than that of the wire during high current transmission, and the heat generated can be dissipated faster, which can effectively avoid electrical failures caused by overheating.

[0026] 4. The module wiring connection of the present invention also uses a plug-in card structure, which can be quickly installed and removed, and the power supply structure can be quickly adjusted. Moreover, a slide rail is used at the bottom of the power supply to calibrate the position of the bus power module, which not only saves time and effort during the installation process, but also avoids the possibility of wrong wiring.

[0027] 5. The present invention has been tested on-site for assembly, maintenance, upgrading, power supply operating temperature, and power supply operation stability, and the test results are superior to those of traditional integrated power supplies. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the present invention from the rear side perspective.

[0030] Figure 3 This is a schematic diagram of the internal structure of the present invention with the upper panel removed.

[0031] Figure 4 for Figure 3 A partial enlarged view of part A.

[0032] Figure 5 This is a schematic diagram of the internal structure of the present invention with the upper end panel and one side end panel removed.

[0033] Figure 6 A schematic diagram of the structure of the board of the control module.

[0034] Figure 7 This is a structural diagram of the VAC board.

[0035] Figure 8 This is a structural diagram of the CAP board.

[0036] Figure 9 This is a structural diagram of the power board.

[0037] Figure 10 This is a structural diagram of the CRC absorption board.

[0038] Figure 11 This is a structural diagram of the ADC output sampling board.

[0039] Figure 12 Schematic diagram of the structure of other embodiments.

[0040] Figure 13 Schematic diagram of the structure of other embodiments.

[0041] Figure 14 This is the wiring diagram for mode one.

[0042] Figure 15 This is the circuit diagram of mode 1.

[0043] Figure 16 This is the circuit diagram of mode 2.

[0044] Figure 17 This is the circuit diagram of mode three.

[0045] Figure 18 This is the circuit diagram of mode four.

[0046] Figure 19 This is the circuit diagram of mode five.

[0047] Figure 20 This is the circuit diagram of mode six.

[0048] Figure 21 This is the circuit diagram of mode seven.

[0049] Figure 22 This is the circuit diagram of mode eight.

[0050] In the picture:

[0051] 10 - Chassis; 11 - Front panel; 111 - Blind panel; 112 - Signal processing board panel; 113 - Control board panel; 114 - Acquisition board panel; 115 - Front ventilation panel; 1150 - Array ventilation holes; 12 - Rear panel; 121 - VAC board panel; 1213 - Switch; 1215 - Through-type high-current terminal block; 122 - CAP board panel; 123 - Power board panel; 124 - Second CAP Board panel; 125-Second power board panel; 126-CRC absorption board panel; 127-Output sampling board panel; 1270-Copper square terminal; 13-Upper end panel; 14-Lower end panel; 15-Side end panel; 16-Front flange; 160-Handle; 17-Rear flange; 181-Front crossbeam; 182-Rear crossbeam; 183-First middle crossbeam; 184-Second middle crossbeam; 191-First guide rail; 192-Second guide rail;

[0052] 21-first backplane; 22-second backplane; 23-third backplane; 24-quick-plug connector; 25-copper busbar;

[0053] 31-first compartment; 32-second compartment; 33-third compartment;

[0054] 40-control module; 41-processing board; 43-control board; 45-ADC acquisition board;

[0055] 50-Function module; 51VAC board; 52-CAP board; 53-Power board; 54-CRC absorption board 54; 55-Output sampling board;

[0056] 60-busbar power module; 62-slide rail. DETAILED DESCRIPTION

[0057] In order to facilitate the understanding of the present invention, the technical solutions and advantages of the invention are further described in detail below in conjunction with the accompanying drawings and embodiments. Any mechanism or method not described in detail in the present invention may refer to the prior art. The specific structure and characteristics of the present invention are described below in an illustrative manner, which should not constitute any limitation to the present invention. At the same time, any of the technical features mentioned below (including implicit or disclosed), as well as any technical features directly displayed or implied in the figures, can be further combined or deleted between these technical features to form more other embodiments that may not be directly or indirectly mentioned in the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0058] like Figure 1-11As shown, the particle accelerator coil / magnet power supply device of this embodiment includes a chassis 10 and, housed therein, a first backplane 21, a second backplane 22, several control modules 40, several functional modules 50, and several busbar power supply modules 60. The first backplane 21 and the second backplane 22 are positioned face-to-face within the chassis 10, dividing the interior of the chassis 10 into a first compartment 31, a second compartment 32, and a third compartment 33. The control module 40 is placed in the first compartment 31 and interconnected via the first backplane 21. The functional modules 50 are placed in the third compartment 33 and are each connected to the second backplane 22. The second compartment 32, between the first and second backplanes 21 and 22, provides space for wiring. By adjusting the wiring on the second backplane 22, mode switching between different circuits and power supplies of different polarities is achieved; by changing the module parameters, the overall functionality and output parameters can be modified.

[0059] Specifically, the chassis 10 is a square container having six end surfaces, namely a front panel 11 , a rear panel 12 , an upper panel 13 , a lower panel 14 and two side panels 15 .

[0060] Among them, the front panel 11 is divided into an independent blind panel 111, a signal processing board panel 112, a control board panel 113, an acquisition board panel 114 and a front ventilation panel 115 in the horizontal direction. The front ventilation panel 115 is provided with an array of ventilation holes 1150 to facilitate heat dissipation. The inner wall of the front panel 11 is provided with two front crossbeams 181 arranged up and down, respectively located at the upper and lower edges of the front panel 11. The panels of the front panel 11 are connected to the front crossbeams 181 by screws to achieve panel fixation. The corresponding independent panel can be removed by removing the corresponding screws. In addition, front flanges 16 are provided on both sides of the front panel 11 to strengthen the connection between the front panel 11 and the two side end panels 15. A handle 160 is provided on the front flange 16.

[0061] The rear panel 12 is horizontally divided into a VAC card panel 121, a first CAP card panel 122, a first power card panel 123, a second CAP card panel 124, a second power card panel 125, a CRC absorption card panel 126, and an output sampling card panel 127. The VAC card panel 121 is equipped with a switch 1213 and a through-type high-current terminal block 1215, while the output sampling card panel 127 is equipped with two 120A copper square terminals 1270. The first CAP card panel 122, the first power card panel 123, the second CAP card panel 124, the second power card panel 125, and the CRC absorption card panel 126 are all equipped with arrayed ventilation holes 1150 to facilitate heat dissipation. The inner wall of the rear panel 12 is equipped with two rear crossbeams 182, arranged vertically, located at the upper and lower edges of the rear panel 12, respectively. The panels of the rear panel 12 are connected to the rear crossbeams 182 with screws to secure them. The corresponding independent panel can be removed by removing the corresponding screws. A rear flange 17 is provided on both sides of the rear panel 12 to strengthen the connection between the rear panel 12 and the two side end panels 15.

[0062] The upper end panel 13 , the lower end panel 14 and the two side end panels 15 are each integrally formed, and the end panels are fixedly connected to each other by screws.

[0063] The chassis 10 is further provided with a plurality of central crossbeams and a plurality of guide rails. The guide rails and the crossbeams are arranged perpendicularly in pairs, forming a square frame for securing the control module 40 and the functional module 50. The central crossbeams are divided into a plurality of first central crossbeams 183 and a plurality of second central crossbeams 184. The plurality of first central crossbeams 183 and second central crossbeams 184 are arranged vertically, with the first central crossbeams 183 close to the front crossbeam 181 and the second central crossbeams 184 close to the rear crossbeam 182.

[0064] The first backplane 21 is positioned between the upper and lower first center crossbeams 183, and the second backplane 22 is positioned between the upper and lower second center crossbeams 184. A certain distance is left between the first backplane 21 and the front panel 11. A first compartment 31 is defined between the first backplane 21 and the second backplane 22. A second compartment 32 is defined between the first and second backplanes 21, 22. This second compartment 32 provides space for adjusting the wiring of the power supply device of this embodiment. A third compartment 33 is defined between the second backplane 22 and the rear panel 12.

[0065] The guide rails are divided into a plurality of first guide rails 191 and a plurality of second guide rails 192. The first guide rails 191 are arranged in the first compartment 31 and vertically extend between the front crossbeam 181 and the first middle crossbeam 183, forming a plurality of first frames for accommodating the boards of the control module 40. The second guide rails 192 are arranged in the third compartment 33 and vertically extend between the rear crossbeam 182 and the second middle crossbeam 184, forming a plurality of second frames for accommodating the boards of the functional module 50.

[0066] A plurality of quick-connect terminals 24 are provided on the surface of the second backplane 22 facing the second compartment 32. Each functional module 50 is connected to the second backplane 22 through the quick-connect terminals 24. Each functional module 50 is functionally independent of each other. The quick-connect terminals 24 are fixedly connected to the copper busbar 25 by screws. By adjusting the connection method of the copper busbar 25, mode switching of different circuits and power supplies of different polarity can be achieved.

[0067] Specifically, the control module 40 is placed in the first compartment 31. The control module 40 includes a signal processing board 41, a control board 43, and an ADC acquisition board 45, which are fixed in the form of PCB boards in a plurality of first frames using a quick-plug installation method. Among them, the signal processing board 41 corresponds to the signal processing board panel 112, the control board 43 corresponds to the control board panel 113, and the ADC acquisition board corresponds to the acquisition board panel 114. The upper and lower sides of each board of the control module 40 are respectively inserted into the first guide rails 191 set up above and below, and the other two sides of the board correspond to the first backplane 21 and the front panel 11, that is, the first guide rails 191 are perpendicular to each panel. When the board of the control module 40 needs to be replaced, it is only necessary to loosen the screws, remove the corresponding independent panel, pull out the board along the first guide rail 191, and then choose to insert other boards, which is a quick-plug installation method.

[0068] The signal processing board 41, control board 43, and ADC acquisition board 45 are interconnected via the first backplane 21. The ADC acquisition board 45 performs high-precision and high-speed sampling on the power supply's key input and output signals, sending them to the control board 43 for calculation. The control board 43 outputs relevant control signals to control the overall operation of the power supply. The signal processing board 41 is responsible for handling power supply fault protection, fault interlocking, and the protection and processing of some analog sampling signals. The first backplane 21 and the second backplane 22 are connected via copper busbars 25 or coaxial cables, connecting the control module 40 and the functional module 50.

[0069] The accelerator magnet power supply has very high reliability requirements. The signal processing board 41 detects and judges all fault signals such as device overtemperature, overvoltage, overcurrent, external interlocking input, etc., which are all hardware protections. The protection function is realized through physical circuits. When abnormal conditions such as overcurrent and overvoltage occur, it can respond in a very short time, quickly cut off the circuit or take other protective measures. The design of this circuit is based on mature circuit design and physical principles, and does not rely on the operation of software programs.

[0070] The control board 43 can realize the calculation, processing and analysis of the data of the entire power supply, and can realize the output of the control signal PWM. It has an embedded large-capacity serial-parallel FLASH, an isolated digital output interface, and a preset timing that can meet the control needs of most magnet power supplies.

[0071] The ADC acquisition board 45 converts continuously changing analog signals, such as voltage and current, into discrete digital signals. It samples the analog signals at a specific sampling frequency, converts them into digital signals, and stores them for analysis, processing, and display. The ADC acquisition board 45 can communicate directly with a host computer via a network port, displaying the collected data in real time. It can also connect to the control board 43 to perform relevant processing and analysis on the collected signals.

[0072] Specifically, the functional module 50 is placed in the third compartment 33. The functional module 50 includes a VAC board 51, two CAP boards 52, two power boards 53, two driver boards, a CRC absorption board 54 and an output sampling board 55. Each functional module 50 is in the form of a PCB board and is fixedly placed in several second frames using a quick-plug installation method.

[0073] The power board 53 and the driver board are combined into a functional module 50. The power boards can be modified or replaced separately as needed during system upgrades. The two boards are connected using pin and female connectors for quick-connect connections, enhancing isolation between the two boards. This prevents interference between the high-voltage and high-current signals in the power board 53 and the driver circuits, improving signal stability and reliability. Shielding covers, secured by snaps, are installed on the outer layers of the power board 53 and the driver board, providing independent shielding for these circuits and enhancing system stability and anti-interference capabilities.

[0074] In this embodiment, the VAC board 51, first CAP board 52, first power board 53 and driver board, second CAP board 52, second power board 53 and driver board, CRC absorption board 54, and output sampling board 55 are preferably arranged in sequence, corresponding to the VAC board panel 121, first CAP board panel 122, first power board panel 123, second CAP board panel 124, second power board panel 125, CRC absorption board panel 126, and output sampling board panel 127, respectively. The upper and lower edges of each board in the functional module 50 are inserted into the upper and lower second guide rails 192, respectively. The other two edges of the board correspond to the second backplane 22 and the rear panel 12, respectively. That is, the second guide rails 192 are perpendicular to each panel. When a board in the functional module 50 needs to be replaced, the screws are simply removed, the corresponding independent panel is removed, and the board is pulled out along the second guide rails 192. Another board can then be inserted, thus achieving a quick-plug installation method.

[0075] Each functional module 50 is independently connected to the second backplane 22 via several quick-connect terminals 24. The quick-connect terminals 24 are screwed to copper busbars 25. Adjusting the connection pattern of the busbars 25 allows for switching between different functional modules 50. The first and second backplanes 21 and 22 are connected via a flat cable and coaxial cable. Both the flat cable and the coaxial cable can be considered formable, quick-connect interfaces, enabling the connection between the control module 40 and the functional modules 50.

[0076] Specifically, the VAC board 51 realizes the access of the external AC power supply, uses a fuse holder to facilitate the installation and replacement of the fuse, uses an EMI filter to filter the AC power, and at the same time, the filter is connected and fixed to the circuit board with screws and copper busbar 25 to increase the overall stability. A Mylar sheet is added between the filter and the circuit board to act as an insulator. The output of the filter is also connected to the PCB board using copper busbar 25, and an ACDC power supply module is used to generate 24V control power, and the on-off output of the 24V control power and the bus AC power is realized through the switch, DC relay and AC relay on the panel.

[0077] The CAP board 52's functional design utilizes the unidirectional conductivity of the diodes in the rectifier bridge to prevent reverse polarity on the input bus DC power supply, followed by LC filtering, ensuring bus voltage stability. When the input power fails to meet the circuit's instantaneous energy needs during operation, the capacitors release stored energy to replenish it, ensuring proper operation. A cooling fan control module 40 is also included to adjust the fan speed based on changes in heat sink temperature. The fan control module 40 detects the temperature of the heat sink, such as the power module's heat sink or the CAP board 52's heat sink, to adjust the fan speed, ultimately increasing the fan's overall lifespan.

[0078] The CRC absorption board 54 is designed using thin film capacitors and power resistors. Its functional design absorbs the resonant energy of voltage spikes generated during switching operation, preventing damage caused by excessive voltage spikes. It also effectively reduces electromagnetic interference (EMI) and improves the circuit's electromagnetic compatibility. The power module output typically connects to an LC circuit, followed by an RC circuit in parallel. Because the power supply's load consists of an inductor and resistor in series, and the load inductance is relatively high, resulting in a large time constant, coupled with specific requirements for ripple and high stability, the second-order filter in the subsequent high-frequency filter circuit presents a challenge for PID correction. A voltage-loop plus current-loop control scheme is typically employed, but this also presents the challenge of complex control parameter adjustment. In this design, an RC compensation branch is added to the load side of the power supply to modify the load's characteristics. This RC compensation branch results in a more gradual change in the power supply's output phase-frequency curve at the crossover frequency, further away from 180° phase, making it easier to adjust control loop parameters. The L at the power module output is located on the power board, while the C and RC circuits are located on the CRC board.

[0079] The output sampling board 55 is designed with one voltage sensor and two current sensors. One current sensor is used for feedback, and the other for sampling. The current sensor DCCT is fixed flat on the circuit board with screws. Mylar tape is used between the DCCT and the circuit board for good insulation, and the intermediate conductors are connected using copper busbars 25. The DCCT's power and signal lines are connected to the circuit board using DB9 connectors and flat cables. Furthermore, the DCCT uses a low-ripple LDO power supply to provide a stable DC voltage to the sensor, reducing the impact of voltage fluctuations on measurement results. This improves current measurement accuracy, reduces system failures caused by unstable sensor power supply, and enhances overall system stability and reliability. Copper busbars 25 are also used to connect the panel output terminals, and a magnetic ring is placed on the busbars to effectively suppress common-mode interference signals. The output sampling board 55 mounts the DCCT on the board, making it easy to install. From an electrical perspective, this avoids signal line crossover issues, further enhancing the performance of the power supply.

[0080] The busbar power module 60 includes several DC power supplies. The first backplane 21 does not completely separate the first compartment 31 and the second compartment 32; there is still some connection between the first compartment 31 and the second compartment 32. Several DC power supplies are placed across the first compartment 31 and the second compartment 32, and are located next to the control module 40. The lower panel 14 of the chassis 10 is provided with a slide rail and a third backplane 23. The busbar power module 60 is fixed within the chassis 10 via the slide rail 62 and corresponds to the front ventilation plate 115. The slide rail 62 not only enables the plug-in installation of the busbar power module 60, but also allows for calibration of the installation position of the busbar power module 60, saving time and effort during installation and avoiding the possibility of incorrect wiring. The third backplane 23 is located in the second compartment 32. The DC power supplies are connected to the third backplane 23 via several quick-connect terminals 24. The third backplane 23 and the second backplane 22 are connected via a copper busbar 25, thereby connecting the busbar power module 60 to the functional module 50.

[0081] In the above embodiment, the bus power supply module 60 is provided with two DC power supplies. In other embodiments, only one DC power supply may be provided according to actual needs. Figure 12 shown.

[0082] In the above embodiment, the bus power module 60 is a DC power supply suitable for a quick-plug interface, so that the bus power module 60 can be installed next to the control module 40 to achieve a compact design. In other embodiments, the bus power module 60 is a DC power supply suitable for a non-quick-plug interface, which is usually larger in size and has a larger power. When installing this DC power supply, it is necessary to raise the chassis of the present invention, and install the DC power supply without a quick-plug structure at the bottom of the power chassis. The DC power supply is connected to the second backplane 22 through a copper bus 25 or a cable, thereby connecting the bus power module 60 to the functional module 50. Moreover, it is also possible to choose whether to install one DC source or two DC sources according to actual conditions, such as Figure 13 By changing the parameters of the modules, the overall function and output parameters of the power supply device can be changed. For example, by adjusting the parameters and quantity of the DC power supply, the overall output parameters of the power supply device can be adjusted. The same applies to other modules.

[0083] The present invention adjusts the above embodiment according to the copper busbar routing and / or module parameters, etc., and can achieve multiple mode outputs of the coil / magnet power supply device, including:

[0084] like Figure 14-15 As shown in Figure 1, Mode 1: One DC power supply and one H-bridge module are transformed into two synchronous buck parallel outputs (unipolar output).

[0085] like Figure 16As shown, mode 2: two DC power supplies, one H-bridge module is transformed into two synchronous buck parallel outputs (unipolar output).

[0086] like Figure 17 As shown, mode three: two DC power supplies, two H-bridge modules are transformed into four synchronous buck parallel outputs (unipolar output).

[0087] like Figure 18 As shown, mode 4: two DC power supplies, two H-bridge modules are transformed into two groups (two synchronous bucks in parallel in each group) of synchronous buck series output (unipolar output).

[0088] like Figure 19 As shown, mode five: one DC power supply and one H-bridge module output (bipolar output).

[0089] like Figure 20 The figure shows mode 6: two DC power supplies and one H-bridge module with parallel output (bipolar output).

[0090] like Figure 21 As shown, mode seven: two DC power supplies, two H-bridge modules with parallel output (bipolar output).

[0091] like Figure 22 As shown, mode eight: two DC power supplies, two H-bridge modules are connected in series for output (bipolar output).

[0092] Compared to existing technologies, the modular design of the particle accelerator coil / magnet power supply unit in this embodiment not only facilitates upgrading and modifying the power supply system but also avoids the cluttered interior of the power supply caused by traditional wiring. This allows for the planning of rational ventilation channels within the chassis, improving heat dissipation. By modularizing control components, functional components, and power supply components, the power supply's applicability is expanded. Mode switching between different circuits and power supplies of different polarities can be achieved by simply changing the wiring pattern, and the overall functionality and output parameters of the power supply unit can be modified by changing the module parameters.

[0093] Moreover, the particle accelerator coil / magnet power supply device of this embodiment has been subjected to actual on-site assembly, maintenance, upgrading and modification, power supply operating temperature testing, power supply operation stability testing, etc., and the results are all superior to traditional integrated power supplies.

[0094] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. For ordinary technicians in this field, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A particle accelerator coil / magnet power supply device, characterized in that: The invention comprises a chassis and a first backplane and a second backplane placed therein, a plurality of control modules, a plurality of functional modules and a plurality of bus power modules. The first backplane and the second backplane are arranged face to face in the chassis, and the inner cavity of the chassis is divided into a first compartment, a second compartment and a third compartment in sequence; the plurality of control modules are placed in the first compartment and are interconnected through the first backplane, the plurality of functional modules are placed in the third compartment and are respectively connected to the second backplane, and the second compartment is located between the first backplane and the second backplane and is a wiring operation space; by adjusting the wiring on the second backplane, the mode switching of different circuits and power supplies of different polarities can be realized, or, by changing the parameters of the module, the overall function and output parameters of the power supply device can be changed.

2. The particle accelerator coil / magnet power supply device according to claim 1, wherein: By changing the wiring mode of the second backplane, the switching between the BUCK circuit and the H-bridge circuit is achieved in the circuit working mode, and the switching between the unipolar power supply and the bipolar power supply is achieved in the function.

3. The particle accelerator coil / magnet power supply device according to claim 2, wherein: The functional module includes a VAC board, at least two CAP boards, at least two power boards, at least two driver boards, a CRC absorption board and an output sampling board; the power board and the driver board are combined into a functional module, and shielding covers fixed by snaps are respectively installed on the outer layers of the power board and the driver board.

4. The particle accelerator coil / magnet power supply device according to claim 3, wherein: The functional modules are respectively connected to the second backplane through a plurality of quick-plug connection terminals. The functional modules are independent of each other. The quick-plug connection terminals are connected to each other through copper busbars. By adjusting the connection method of the copper busbars, the connection switching between different functional modules can be achieved.

5. The particle accelerator coil / magnet power supply device according to claim 4, wherein: The bus power supply module includes several DC power supplies; for a DC power supply without a quick-plug structure, the DC power supply is connected to the second backplane via a copper busbar or a cable, thereby connecting the bus power supply module to the functional module; for a DC power supply with a quick-plug structure, a third backplane is provided, and the DC power supply with a quick-plug structure is connected to the third backplane via several quick-plug connection terminals, respectively. The third backplane is connected to the second backplane via a copper busbar, thereby connecting the bus power supply module to the functional module.

6. The particle accelerator coil / magnet power supply device according to claim 5, wherein: The DC power supply without a quick-plug structure is a high-power power supply, which is arranged at the bottom of the chassis and below the functional module; the DC power supply with a quick-plug structure has less power than the DC power supply without a quick-plug structure, and its volume is also smaller than that of the DC power supply without a quick-plug structure. The DC power supply with a quick-plug structure is arranged next to the control module.

7. The particle accelerator coil / magnet power supply device according to claim 5, wherein: By adjusting the copper busbar connection method and / or the parameters of each module, different power supply output modes can be achieved, including: Mode 1: One DC power supply and one H-bridge module are converted into two synchronous BUCK parallel outputs with unipolar output; Mode 2: Two DC power supplies, one H-bridge module transforms into two synchronous buck parallel outputs, unipolar output; Mode 3: Two DC power supplies, two H-bridge modules transform into four synchronous BUCK parallel outputs, unipolar output; Mode 4: Two DC power supplies and two H-bridge modules are converted into two sets of synchronous buck series outputs, where each set of two synchronous bucks are connected in parallel, with unipolar outputs. Mode 5: one DC power supply, one H-bridge module output, bipolar output; Mode 6: Two DC power supplies and one H-bridge module in parallel, bipolar output; Mode seven, two DC power supplies, two H-bridge modules in parallel output, bipolar output; Mode eight, two DC power supplies, two H-bridge modules connected in series, bipolar output.

8. The particle accelerator coil / magnet power supply device according to claim 1, wherein: The control module and the functional module are both arranged in the chassis in the form of boards and installed in a quick-plug manner.

9. The particle accelerator coil / magnet power supply device according to claim 8, wherein: The chassis is provided with a plurality of cross beams and a plurality of guide rails. The cross beams and the guide rails are vertically arranged in pairs to form a frame for fixing the control module and the functional module. The upper and lower sides of the board-type control module or functional module are respectively inserted into the upper and lower guide rails. When the control module or functional module needs to be replaced, the control module or functional module can be pulled out or installed along the guide rails by removing the corresponding panel of the chassis.

10. The particle accelerator coil / magnet power supply device according to claim 1, wherein: The control module includes a signal processing board, a control board and an ADC acquisition board. The ADC acquisition board performs high-precision and high-speed sampling on the key input and output signals of the power supply and sends them to the control board for calculation. The control board outputs relevant control signals to control the overall operation of the power supply. The signal processing board is used to handle the fault protection, fault interlocking and protection and processing of some analog sampling signals of the power supply. The first backplane is connected to the second backplane via a copper bus or a coaxial cable, so that the control module is connected to the functional module.

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