Energy switching method and device, computer equipment and storage medium

Abstract

The invention relates to the technical field of automatic control, and discloses an energy switching method and device, computer equipment and a storage medium, and the method comprises the steps: detecting a mode switching instruction for the energy switching device; determining a target input mode and a corresponding relay configuration strategy according to the mode switching instruction; and adjusting the connection state of different potential characteristic relay groups in the energy switching device based on the relay configuration strategy, so that the energy switching device is switched to the target input mode. The problems that an existing pneumatic control method is low in response speed, poor in reliability and frequent in maintenance are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic control, and in particular to an energy switching method and device, a computer device and a storage medium. BACKGROUND

[0002] As a key doping means in modern manufacturing processes, electrical driving equipment realizes the control of the electrical properties (such as the conductivity type and the carrier concentration) of the target region by injecting the energy of a specific element into the substrate after switching. This technology has the advantages of high controllability and non-equilibrium doping distribution, and can meet the stringent requirements of advanced devices for small size and complex doping structure. The accurate regulation of energy parameters directly determines the performance boundary of the device, and the ionization energy required for different injection elements spans three orders of magnitude from low energy to high energy. Therefore, the multi-energy switching capability has become a core requirement of electrical driving equipment, and the energy switching device capable of fast switching is a key link to realize this function.

[0003] At present, the existing high-low energy switching device controlled by gas cylinder relies on mechanical components driven by gas cylinder to switch modes, which has the disadvantages of slow response speed, easy wear and aging of moving parts, possible micro-leakage damage to the ultra-high vacuum environment caused by long-term operation, and complex system structure. These deficiencies seriously affect the switching efficiency, reliability and maintenance cycle of the equipment, and limit the flexibility and stability of the ion implantation process. SUMMARY

[0004] Therefore, the embodiments of the present application provide an energy switching method, device, computer device and storage medium to solve the problems of slow response speed, poor reliability and frequent maintenance of the existing pneumatic control method.

[0005] In a first aspect, the embodiments of the present application provide an energy switching method, which comprises: detecting a mode switching instruction for an energy switching device; determining a target input mode and a corresponding relay configuration strategy according to the mode switching instruction; adjusting the connection state of different potential characteristic relay groups in the energy switching device based on the relay configuration strategy, so that the energy switching device switches to the target input mode.

[0006] Further, the energy switching device comprises a first controller, a second controller, a first relay group and a second relay group, wherein the first controller is configured to control the connection state of the first relay group, the second controller is configured to control the connection state of the second relay group, the first relay group comprises at least a first high-voltage end relay and a second high-voltage end relay, and the second relay group comprises at least a first ground end relay and a second ground end relay.

[0007] Further, the adjusting the connection state of the relay groups with different potential characteristics in the energy switching device based on the relay configuration strategy comprises: triggering the first controller to generate a first control signal based on the relay configuration strategy, and driving the first relay group to perform on-off operation by using the first control signal; triggering the second controller to generate a second control signal based on the relay configuration strategy, and driving the second relay group to perform on-off operation by using the second control signal.

[0008] Further, the adjusting the connection state of the relay groups with different potential characteristics in the energy switching device based on the relay configuration strategy comprises: If the target input mode is a high-energy input mode, the output end of the energy switching device is connected to the first power input end through the first high-voltage end relay and the second power input end is connected to the ground end of the energy switching device through the first ground end relay based on the first configuration strategy, wherein the power energy of the first power input end is higher than that of the second power input end; If the target input mode is a low-energy input mode, the output end of the energy switching device is connected to the second power input end through the second high-voltage end relay and the third power input end is connected to the ground end of the energy switching device through the second ground end relay based on the second configuration strategy, wherein the power energy of the second power input end is higher than that of the third power input end.

[0009] Further, the first controller at least comprises an inverter unit, an isolation unit, a rectifier unit and a voltage stabilizing unit; the triggering the first controller to generate a first control signal based on the relay configuration strategy comprises: generating an initial alternating current energy by the inverter unit; performing isolation conversion on the initial alternating current energy by the isolation unit to obtain a candidate alternating current energy; converting the candidate alternating current energy into a pulse direct current signal by the rectifier unit; processing the pulse direct current signal by the voltage stabilizing unit to obtain a first control signal.

[0010] Further, the inverter unit at least comprises a half-bridge inverter topology or a full-bridge inverter topology, wherein the half-bridge inverter topology is composed of two switching tubes and a driving chip, and the full-bridge inverter topology is composed of four switching tubes and a driving chip; The generating initial alternating current energy by the inverter unit comprises: generating a pulse width modulation signal with a specific duty ratio by the driving chip, and controlling a switching tube to perform on-off operation by using the pulse width modulation signal, so that the initial direct current energy is converted into the initial alternating current energy.

[0011] Further, the isolation unit at least comprises a first edge winding and a second edge winding, wherein the first edge winding is connected with the output end of the inverter unit, and the second edge winding is connected with the input end of the rectifier unit. The isolation conversion of the initial alternating current energy by the isolation unit to obtain candidate alternating current energy comprises: receiving the initial alternating current energy by the first edge winding, and adjusting the initial alternating current energy according to the turns ratio of the first edge winding and the second edge winding to obtain the candidate alternating current energy.

[0012] Further, the energy switching device further comprises a third controller, wherein the third controller is configured to perform delay processing operation on the control signal for the relay group; after detecting the mode switching instruction for the energy switching device, the method further comprises: processing the mode switching instruction by the third controller to generate a delay switching signal, wherein the delay switching signal is an off signal generated by an analog circuit when the control signal level jumps, or a switching signal output after delay processing of the control signal by a preset delay program in a digital chip; controlling different potential characteristic relay groups to perform on-off operation according to a preset time sequence based on the delay switching signal.

[0013] In a second aspect, an embodiment of the present application provides an energy switching device, which comprises: a detection module configured to detect a mode switching instruction for the energy switching device; a determination module configured to determine a target input mode and a corresponding relay configuration strategy according to the mode switching instruction; an adjustment module configured to adjust the connection state of different potential characteristic relay groups in the energy switching device based on the relay configuration strategy, so that the energy switching device switches to the target input mode.

[0014] In a third aspect, an embodiment of the present application provides a computer device, which comprises a memory and a processor, the memory and the processor are communicatively connected with each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the method of the first aspect or any of the corresponding embodiments thereof.

[0015] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, which stores computer instructions for causing a computer to execute the method of the first aspect or any of the corresponding embodiments thereof.

[0016] The method provided by the embodiment of the present application has the following beneficial effects: The method provided by the embodiment of the present application realizes the transition from the mechanical response of the pneumatic control to the electrical signal control by detecting the mode switching instruction, significantly improves the response speed of the system and the accuracy of the instruction recognition, realizes the intelligentization and programming of the switching process according to the instruction to determine the target input mode and the relay configuration strategy, overcomes the uncertainty and delay caused by the mechanical positioning of the traditional pneumatic device, ensures the accuracy and optimality of the mode switching path, adjusts the connection state of the relay group with different potential characteristics based on the strategy, utilizes the characteristics of the vacuum relay such as no wear, long service life and fast action in vacuum, not only realizes the high-speed and arcless switching in milliseconds, greatly improves the switching efficiency, but also effectively avoids the damage of the mechanical movement to the ultra-high vacuum environment, greatly enhances the reliability and stability of the entire energy switching device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a flowchart of the energy switching method according to the embodiment of the present application; Figure 2 is a structural schematic diagram of the energy switching device according to the embodiment of the present application; Figure 3 is a hardware composition schematic diagram of the high-voltage end relay according to the embodiment of the present application; Figure 4 is a hardware composition schematic diagram of another high-voltage end relay according to the embodiment of the present application; Figure 5 is a hardware composition schematic diagram of the ground end relay according to the embodiment of the present application; Figure 6 is a hardware composition schematic diagram of another ground end relay according to the embodiment of the present application; Figure 7 is a circuit schematic diagram of the high-energy input mode configuration strategy according to the embodiment of the present application; Figure 8is a circuit schematic diagram of a low-energy input mode configuration strategy according to an embodiment of the present application; Figure 9 is a structural schematic diagram of a first controller according to an embodiment of the present application; Figure 10 is an internal structural schematic diagram of an inverter unit according to an embodiment of the present application; Figure 11 is an internal structural schematic diagram of another inverter unit according to an embodiment of the present application; Figure 12 is an internal structural schematic diagram of an isolation unit according to an embodiment of the present application; Figure 13 is an internal structural schematic diagram of a rectifier unit according to an embodiment of the present application; Figure 14 is an internal structural schematic diagram of a voltage stabilizing unit according to an embodiment of the present application; Figure 15 is a position structural schematic diagram of a third controller according to an embodiment of the present application; Figure 16 is an internal structural schematic diagram of a third controller according to an embodiment of the present application; Figure 17 is an internal structural schematic diagram of another third controller according to an embodiment of the present application; Figure 18 is a structural block diagram of another energy switching device according to an embodiment of the present application; Figure 19 is a hardware structural schematic diagram of a computer device of an embodiment of the present application. DETAILED DESCRIPTION

[0019] So that the objects, technical solutions and advantages of the embodiments of the present application are more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] According to an embodiment of the present application, an energy switching method and device, a computer device and a storage medium are provided. It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a group of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0021] In the present embodiment, an energy switching method is provided, Figure 1 is a flowchart of an energy switching method according to an embodiment of the present application, asFigure 1 As shown, the flow includes the following steps: Step S101, detecting a mode switching instruction for the energy switching device.

[0022] In the embodiments of the present application, a mode switching request is actively sent by an external control system (such as a host computer or a process controller) connected to the energy switching device. The detection process is performed by a control module (which can correspond to the first controller, the second controller, or a more upper-level general control unit) inside the energy switching device through its signal input interface to receive the instruction. The mode switching instruction is usually an electrical signal, such as a specific level jump (e.g., from low to high, or vice versa) or a set of preset digital communication protocol commands (such as a data packet containing a target mode code sent through a serial communication interface), the core content of which is to indicate that the energy switching device needs to switch from the current working mode to another specified working mode, i.e., the high-energy input mode (Accel mode) or the low-energy input mode (Deflect mode). After the control module captures the instruction through continuous monitoring or in response to an interrupt, the detection step is completed, and the trigger basis for subsequent determination of the target mode and execution of the switching operation is provided.

[0023] Step S102, determining the target input mode and the corresponding relay configuration strategy according to the mode switching instruction.

[0024] In the embodiments of the present application, after the control module (which can be the upper level or an integrated part of the first controller and the second controller) successfully detects the mode switching instruction, the instruction is parsed to determine the specific working mode required by the instruction to switch to, i.e., the target input mode, which is defined as one of the high-energy input mode (Accel mode) or the low-energy input mode (Deflect mode). Subsequently, the control module calls the relay configuration strategy uniquely corresponding to the target input mode from the internally preset logical mapping relationship; the strategy is a set of pre-defined combination rules about how to set the on-off state of each specific relay (such as the first high-voltage end relay JDQ3, the second high-voltage end relay JDQ4, the first ground end relay JDQ1, and the second ground end relay JDQ2) in the first relay group (high-voltage end relay) and the second relay group (ground end relay), aiming to achieve the energy output required by the target input mode through specific circuit path connections.

[0025] Step S103, adjusting the connection state of the different potential characteristic relay groups in the energy switching device based on the relay configuration strategy, so that the energy switching device switches to the target input mode.

[0026] In the embodiment of the present application, the control module generates corresponding driving signals according to the determined relay configuration strategy and sends them to the first controller and the second controller respectively; wherein the first controller drives the first relay group (i.e. the high-voltage end relay group, including the first high-voltage end relay JDQ3 and the second high-voltage end relay JDQ4) to perform on-off operation according to the strategy, so as to switch the connection between the high-voltage output end (HV OUTPUT) and different high-voltage input ends (HV INPUT1, HV INPUT2); at the same time, the second controller drives the second relay group (i.e. the ground end relay group, including the first ground end relay JDQ1 and the second ground end relay JDQ2) to perform on-off operation according to the strategy, so as to switch the connection between different power input ends and the chassis ground (GND); through the coordinated change of the connection states of the two groups of relays, the specific current path required by the target input mode is formed, and finally the reliable conversion of the working mode of the energy switching device is realized.

[0027] The generation and execution of the driving signals have time sequence control characteristics. The control module does not send the driving signals to the first controller and the second controller at the same time, but sends them step by step in the order of ground end first and high-voltage end later: first, the control module sends the signal driving the second relay group to the second controller, and then, after the ground end relay state is stable, the control module sends the signal driving the first relay group to the first controller. The time sequence triggering mechanism reduces the risk of instantaneous common in the switching process, and improves the safety and reliability of the whole switching process.

[0028] As an example, when the ion implantation process needs to switch from the low-energy input mode to the high-energy input mode, the external control system sends a digital instruction containing the target mode code "ACCEL" to the energy switching device through the CAN bus. After receiving the mode switching instruction, the control module determines that the target input mode is the high-energy input mode, and calls the corresponding first configuration strategy. Then, the control module generates the first control signal driving the first high-voltage end relay JDQ3 to turn on through the first controller, and generates the second control signal driving the first ground end relay JDQ1 to turn on through the second controller according to the first configuration strategy. During the execution of the switching process, the third controller ensures that JDQ3 and JDQ1 are turned on after JDQ4 and JDQ2 are completely disconnected, with a delay of 5 ms, so as to safely complete the mode switching.

[0029] In the embodiment of the present application, the energy switching device includes a first controller, a second controller, a first relay group and a second relay group, wherein the first controller is used to control the connection state of the first relay group, the second controller is used to control the connection state of the second relay group, the first relay group includes at least a first high-voltage end relay and a second high-voltage end relay, and the second relay group includes at least a first ground end relay and a second ground end relay.

[0030] Specifically, as shown in Figure 2 The energy switching device includes a first controller, a second controller, a first relay group, and a second relay group. The first controller is a high-voltage end relay controller, which includes an inverter, an isolator, a rectifier, and a voltage stabilizer unit, and is used to generate and control the high-voltage isolated signal required to drive the high-voltage end relay. The second controller is a ground end relay controller, which can be directly driven by a low-voltage DC power supply and a logic signal because the ground end relay is at a low potential, and the structure is relatively simple. The first relay group, i.e., the high-voltage end relay group, includes at least a first high-voltage end relay (e.g., JDQ3) and a second high-voltage end relay (e.g., JDQ4). One end of the relays in this group is connected to a high-voltage output (HV OUTPUT) for switching different high-voltage power sources. The second relay group, i.e., the ground end relay group, includes at least a first ground end relay (e.g., JDQ1) and a second ground end relay (e.g., JDQ2). One end of the relays in this group is connected to a reference ground (GND) for switching the ground loop of different power input terminals.

[0031] It should be noted that one end of the high-voltage end relay (e.g., JDQ3, JDQ4) in the first relay group is connected to the high-voltage output (HV OUTPUT). The hardware structure can use two single-pole single-throw relays (e.g., Figure 3 or one single-pole double-throw relay (e.g., Figure 4 Both relay configuration schemes can achieve reliable connection between the first relay group and the high-voltage output, meeting the switching control requirements of the high-voltage loop. The two schemes are equivalent in function and can be selected flexibly according to actual circuit layout space, cost control targets, and other factors.

[0032] One end of the ground end relay (e.g., JDQ1, JDQ2) in the second relay group is directly connected to the ground. The hardware structure can use two single-pole single-throw relays (e.g., Figure 5 or one single-pole double-throw relay (e.g., Figure 6 Both relay configuration schemes can achieve stable connection between the first relay group and the ground end, meeting the switching control requirements of the ground loop. The two schemes are equivalent in function and can be selected flexibly according to actual assembly space and cost control targets, and other factors.

[0033] By dividing the energy switching device into a structure comprising a first controller, a second controller, a first relay group, and a second relay group, independent control of the high-voltage and ground circuits is achieved: the first controller is dedicated to driving the high-voltage relays, ensuring isolation and safety during high-voltage switching; the second controller directly drives the ground relays, simplifying the control structure of the low-potential circuit; the first relay group (including the first and second high-voltage relays) is responsible for selecting the high-voltage power supply, enabling flexible access to different energy levels; the second relay group (including the first and second ground relays) is responsible for configuring the grounding circuit, together forming a clear and reliable dual-path control system, improving the modularity and maintainability of the overall device.

[0034] In this embodiment of the application, adjusting the connection state of relay groups with different potential characteristics in the energy switching device based on the relay configuration strategy includes the following steps A1-A2: Step A1: Based on the relay configuration strategy, the first controller is triggered to generate a first control signal, and the first control signal is used to drive the first relay group to perform on / off operations.

[0035] Specifically, after receiving a trigger command based on a relay configuration strategy from the upper-level control module, the first controller (i.e., the high-voltage relay controller) first converts low-voltage DC power into initial AC power of a specific frequency through its internal inverter unit. This AC power is then electrically isolated and voltage-transformed by the isolation unit (using an isolation transformer) to obtain candidate AC power. Next, the rectifier unit (using a full-bridge rectifier circuit) converts the candidate AC power into a unidirectional pulsating pulse DC signal. Finally, the voltage regulator unit (using an LDO) smooths and stabilizes the pulse DC signal to generate a high-precision constant DC voltage as the first control signal. This first control signal is applied to the first relay group (i.e., the high-voltage relay group, including the first high-voltage relay JDQ3 and the second high-voltage relay JDQ4), driving the vacuum relay coils inside, thereby controlling the contacts of each relay to complete the specified on or off operation, realizing the switching of the high-voltage circuit.

[0036] Step A2: Based on the relay configuration strategy, the second controller is triggered to generate a second control signal, and the second control signal is used to drive the second relay group to perform on / off operations.

[0037] Specifically, after receiving the trigger instruction from the upper control module based on the same relay configuration strategy, the second controller (i.e., the ground end relay control module) directly generates the required second control signal (one or more low-voltage, small-current direct current drive signals) by using the drive circuit composed of a low-voltage direct current power supply and a logic circuit in the second controller; the second control signal is directly applied to the second relay group (i.e., the ground end relay group, including the first ground end relay JDQ1 and the second ground end relay JDQ2), to drive the vacuum relay coil inside the second relay group, so as to control the contacts of the ground end relays to complete the specified conduction or disconnection operation, and to realize the reliable switching of the ground loop between the corresponding power input end and the reference ground (GND).

[0038] By triggering the first controller to generate the first control signal and drive the first relay group, and triggering the second controller to generate the second control signal and drive the second relay group, the decoupling and synchronous execution of high and low voltage control are realized: the first controller generates the first control signal which is isolated and stabilized, to ensure the high precision and electrical safety of the high-voltage relay drive; the second controller directly generates the second control signal to realize the fast and low-power response of the ground end relay; through the cooperative output of the two groups of signals, the high-voltage end and the ground end relay can act synchronously or sequentially according to the strategy, which not only guarantees the integrity of the loop switching, but also avoids the circuit conflict caused by asynchronous control.

[0039] In the embodiments of the present application, the connection state of the different potential characteristic relay groups in the energy switching device is adjusted based on the relay configuration strategy, including the following steps B1-B2: Step B1, if the target input mode is the high-energy input mode, the output end of the energy switching device is connected to the first power input end through the first high-voltage end relay based on the first configuration strategy, and the second power input end is connected to the ground end of the energy switching device through the first ground end relay, wherein the power energy of the first power input end is higher than that of the second power input end.

[0040] Specifically, when the control module determines that the target input mode is the high-energy input mode (Accel mode), the preset first configuration strategy is called; the logic of the strategy is as shown in the following table: Figure 7 As shown in the table: the first high-voltage end relay (i.e., JDQ3) is controlled to be conductive, so that the output end (HV OUTPUT) of the energy switching device is electrically connected to the first power input end (HV INPUT1) to introduce high-energy power supply; at the same time, the first ground end relay (i.e., JDQ1) is controlled to be conductive, so that the second power input end (HV INPUT2) forms a ground loop with the ground end (i.e., the chassis GND) of the energy switching device through the relay; by establishing the two key paths, a complete working circuit required for high-energy injection is formed.

[0041] If the target input mode is a low-energy input mode, the output end of the energy switching device is connected to the second high-voltage end relay and the second power input end based on a second configuration strategy, and the third power input end is connected to the ground end of the energy switching device through the second ground end relay, wherein the power energy of the second power input end is higher than that of the third power input end.

[0042] Specifically, when the control module determines that the target input mode is a low-energy input mode (Deflect mode), a preset second configuration strategy is called. The logic of the strategy is as shown in the following table: Figure 8 As shown in the table, the second high-voltage end relay (JDQ4) is controlled to be turned on, so that the output end (HV OUTPUT) of the energy switching device is electrically connected to the second power input end (HV INPUT2) to introduce a medium-low energy power supply. At the same time, the second ground end relay (JDQ2) is controlled to be turned on, so that the third power input end (HV INPUT3) forms a grounding loop with the ground end (chassis GND) of the energy switching device through the relay. By establishing these two key paths different from the high-energy mode, a complete working circuit required for low-energy injection is formed.

[0043] By using the configuration strategy of different connection modes for different modes (the first high-voltage end relay is connected to the first power input end, the first ground end relay is connected to the second power input end to ground, and the second high-voltage end relay is connected to the second power input end if it is a low-energy mode, and the second ground end relay is connected to the third power input end to ground), the energy path is accurately constructed and mode isolation is achieved. In the high-energy mode, the highest energy power supply is connected through the first high-voltage end relay, and the corresponding grounding is completed by using the first ground end relay to form a high-energy injection loop. In the low-energy mode, the second high-voltage end relay is switched to connect the medium-low energy power supply, and an independent grounding path is established through the second ground end relay to ensure complete isolation of the power supply and ground wire between the two modes, and to eliminate the risk of energy reverse connection and short circuit.

[0044] In the embodiment of the present application, as shown in the following table: Figure 9 The first controller at least includes an inverter unit, an isolation unit, a rectifier unit, and a voltage stabilizing unit. The first controller generates a first control signal based on the relay configuration strategy, including the following steps C1-C4: Step C1: generating an initial alternating current energy through the inverter unit.

[0045] In the embodiment of the present application, the inverter unit at least includes a half-bridge inverter topology or a full-bridge inverter topology, wherein the half-bridge inverter topology is composed of two switching tubes and a driving chip, and the full-bridge inverter topology is composed of four switching tubes and a driving chip. The initial alternating current energy is generated by an inverter unit, including: generating a pulse width modulation signal with a specific duty cycle by a driving chip, and controlling the on-off operation of a switch tube by the pulse width modulation signal to convert the initial direct current energy into the initial alternating current energy.

[0046] Specifically, the inverter unit (as a core component of the first controller) starts to work after receiving an enable signal; the unit adopts a half-bridge inverter topology (as shown in Figure 10 , composed of two switch MOS tubes and a driving chip) or a full-bridge inverter topology (as shown in Figure 11 , composed of four switch MOS tubes and a driving chip); the driving chip (analog or digital chip) inside generates a pulse width modulation signal with a duty cycle of 50%; the PWM signal is applied to the control electrode of each switch tube, and the switch tube is controlled to perform high-frequency on-off operation according to the preset logic (in the half-bridge, two switch tubes are alternately turned on; in the full-bridge, diagonal tube groups are alternately turned on), so as to convert the input low-voltage direct current energy into alternating current energy of a specific frequency, i.e. the initial alternating current energy.

[0047] The generation of the pulse width modulation signal has a configurable switching frequency. The driving chip can configure the switching frequency of the PWM signal according to the driving requirements of different relays through external resistance or digital interface, which is usually adjustable in the range of 20 kHz to 100 kHz. Higher switching frequency is beneficial to reduce the size of the isolation transformer, while lower switching frequency can improve the conversion efficiency of the system. This configurable feature enables the inverter unit to adapt to the driving requirements of different types of vacuum relays, enhancing the flexibility and adaptability of the system.

[0048] The generation of the PWM signal by the driving chip controls the on-off of the switch tube to generate the initial alternating current energy, realizing efficient and controllable inverter process: the driving chip generates a PWM signal with a specific duty cycle to ensure the stability of the alternating current output waveform and the accuracy of the frequency; in the half-bridge or full-bridge topology, the conversion from direct current to alternating current is realized by the alternate conduction of the switch tube, and the half-bridge structure is simplified and low in cost, while the full-bridge structure has large power capacity and small output ripple; this design enables the inverter unit to flexibly select the topology structure according to the actual requirements, achieving an optimal balance between efficiency, cost and performance, and providing high-quality energy input for the subsequent isolation and rectification stages.

[0049] Step C2, the initial alternating current energy is isolated and converted by an isolation unit to obtain candidate alternating current energy.

[0050] In the embodiments of the present application, as shown in Figure 12 , the isolation unit at least includes a first side winding and a second side winding, wherein the first side winding is connected to the output end of the inverter unit, and the second side winding is connected to the input end of the rectification unit; The initial alternating current energy is isolated and converted by the isolation unit to obtain the candidate alternating current energy, including: receiving the initial alternating current energy by the first side winding, and adjusting the initial alternating current energy according to the turns ratio of the first side winding and the second side winding to obtain the candidate alternating current energy.

[0051] Specifically, the first side winding (i.e. the primary winding) of the isolation unit (taking the isolation transformer as the core) receives the initial alternating current energy output from the inverter unit; using the transformer magnetic coupling principle, the energy is transmitted to the second side winding (i.e. the secondary winding) in an electrically isolated state, during which the turns ratio of the first side winding and the second side winding is adjusted to proportionally convert the voltage amplitude, and finally the alternating current energy after electrical isolation and voltage adjustment, i.e. the candidate alternating current energy, is obtained at the output end of the second side winding, which provides the subsequent rectifier module with an input signal that meets the voltage requirement and ensures reliable isolation of high and low voltage circuits.

[0052] The initial alternating current energy is received by the first side winding, and the candidate alternating current energy is output by the second side winding after turns ratio adjustment, realizing the isolation and voltage adaptation of energy transmission: the first side winding receives the inverter output, and the energy is transmitted to the second side winding by magnetic coupling, completely isolating the high voltage side from the low voltage control end; by adjusting the turns ratio of the primary and secondary sides, the output voltage can be flexibly increased or decreased to meet the driving voltage requirements of different high voltage relays; this isolation conversion not only ensures the electrical safety of the system, but also realizes the accurate matching of the voltage amplitude, providing the rectifier module with a safe and level-compliant alternating current input.

[0053] Step C3, converting the candidate alternating current energy into a pulse direct current signal by the rectifier unit.

[0054] Specifically, as shown in Figure 13 The rectifier unit (using a full-bridge rectifier circuit as the core implementation structure) receives the candidate alternating current energy output from the second side winding of the isolation unit; the circuit is connected by four rectifier diodes (D1, D2, D3, D4) according to the bridge topology, and uses the unidirectional conduction characteristic of diodes to guide the input positive and negative half-cycle alternating current, so that a pulse direct current signal with a single direction but a periodic fluctuation in amplitude is formed at the output end, thereby completing the conversion from alternating current to direct current and providing the required direct current input basis for the subsequent voltage stabilization module.

[0055] Step C4, processing the pulse direct current signal by the voltage stabilization unit to obtain the first control signal.

[0056] Specifically, as shown in Figure 14As shown, the voltage stabilizing unit (using an LDO low dropout linear voltage regulator circuit as the core) receives the pulse direct current signal output from the rectifying unit; the LDO circuit monitors and compensates the voltage fluctuation and load change of the input signal in real time through the internal error amplifier, reference voltage source and adjusting tube and other components, effectively suppresses the ripple and noise at the input end, processes and stabilizes the unstable pulse direct current signal into a constant direct current voltage with high precision and low noise; the constant direct current voltage processed through the voltage stabilizing unit is the first control signal, which provides a stable and reliable operating power source for the vacuum relay coil in the first relay group (high-voltage end relay group), ensuring that it can accurately perform on-off operation.

[0057] The initial alternating current energy is generated through the inverter unit, the candidate alternating current energy is obtained through the isolation unit for isolation conversion, the pulse direct current signal is converted through the rectifying unit, and the first control signal is obtained through the voltage stabilizing unit, so that the multi-stage generation and optimization of the high-voltage driving signal are realized: the inverter unit converts direct current into alternating current to provide a high-frequency signal basis for isolation conversion; the isolation unit realizes the electrical isolation of high-voltage and low-voltage circuits through a transformer and adjusts and adapts the driving voltage through the turn ratio; the rectifying unit restores alternating current into direct current to provide input for voltage stabilization; the voltage stabilizing unit finally outputs a stable and low-noise direct current control signal, ensuring the accuracy and reliability of the driving voltage of the high-voltage relay coil and comprehensively improving the anti-interference ability and service life of the high-voltage side control.

[0058] In the embodiment of the present application, the energy switching device further comprises a third controller, wherein the third controller is configured to perform a delay processing operation on the control signal for the relay group; After detecting the mode switching instruction for the energy switching device, the method further comprises: In step S201, the third controller processes the mode switching instruction to generate a delay switching signal, wherein the delay switching signal is an off signal generated by an analog circuit when the control signal level jumps, or a switching signal output after the control signal is delayed by a preset delay program in a digital chip.

[0059] It should be noted that, as Figure 15 As shown, the third controller (i.e., the switching delay controller) and the first controller and the second controller together constitute a control module arranged in the energy switching device, and are configured to generate a delay switching signal based on the mode switching instruction to control the on-off timing sequence of the relay group.

[0060] In the embodiment of the present application, after receiving the mode switching instruction, the third controller processes the instruction through its internal circuit to generate a delay switching signal; the specific implementation adopts one of the following two ways: one is an analog circuit, as Figure 16As shown, that is, at the moment when the level jump of the control signal is detected, a low-level off signal is immediately generated as the delay switching signal, which will make the drive chip enter the off state; the second is the digital control mode, as shown in Figure 17 As shown, that is, through the preset delay program in the digital chip, the received control signal is delayed, and after the preset delay time, an effective switching signal is output as the delay switching signal; the finally generated delay switching signal is sent to the drive chip to control the on-off time sequence of the relay group.

[0061] The delay program has a programmable delay time parameter. The delay program in the digital chip stores the delay time value through the register, which can be set by the external control system through the communication interface, and the delay range is usually adjustable between 1ms and 20ms. Users can accurately set the required delay time according to the actual use of the relay action time characteristics, which not only ensures enough time to wait for the relay to completely turn off, but also avoids unnecessary process waiting time, achieving safety.

[0062] Step S202, controlling different potential characteristic relay groups to perform on-off operation according to preset time sequence based on the delay switching signal.

[0063] In the embodiments of the present application, the delay switching signal is sent to the drive chip in the first controller (high-voltage end relay control module) and the second controller (ground end relay control module); the signal forces the drive chip to control all relays in the first relay group (high-voltage end relay group) and the second relay group (ground end relay group) to enter a unified off state during the transition of mode switching, or to allow another group of relays to turn on after a preset time delay after a group of relays is completely turned off; through this controlled preset time sequence, it is ensured that different potential relay groups (such as JDQ3 / JDQ4 connected to high voltage and JDQ1 / JDQ2 connected to ground) will not appear in the dangerous state of instantaneous simultaneous conduction during mode switching, thereby preventing power series short circuit or ground short circuit, and ensuring the electrical safety of the device and the power supply.

[0064] The delay switching signal is generated by the third controller, and the relay group is controlled to turn on and off according to the preset time sequence based on the signal, which realizes the safety interlocking during mode switching: the third controller generates an off signal in real time through an analog circuit, or outputs a switching signal through a digital program delay, which ensures that all relays enter the full off state at the moment of mode switching; then the target relay is turned on in sequence according to the preset time sequence, completely eliminating the possibility of power series or ground short circuit caused by the conduction of high and low voltage relays; this delay control mechanism greatly improves the fault tolerance and operation safety of the system, and ensures the long-term stable operation of the device and the power supply in frequent switching.

[0065] An energy switching device is also provided in the embodiments, which is used to implement the above embodiments and preferred embodiments, and will not be described again. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware is also possible and contemplated.

[0066] The embodiments provide an energy switching device, as shown in Figure 18 comprises: A detection module 181 is configured to detect a mode switching instruction for the energy switching device. A determination module 182 is configured to determine a target input mode and a corresponding relay configuration strategy according to the mode switching instruction. An adjustment module 183 is configured to adjust connection states of different potential characteristic relay groups in the energy switching device based on the relay configuration strategy, so that the energy switching device switches to the target input mode.

[0067] In the embodiments of the present application, the energy switching device comprises a first controller, a second controller, a first relay group and a second relay group, wherein the first controller is configured to control connection states of the first relay group, the second controller is configured to control connection states of the second relay group, the first relay group comprises at least a first high-voltage end relay and a second high-voltage end relay, and the second relay group comprises at least a first ground end relay and a second ground end relay.

[0068] In the embodiments of the present application, the adjustment module 183 comprises: A first generation sub-module is configured to trigger the first controller to generate a first control signal based on the relay configuration strategy, and drive the first relay group to perform on-off operation by using the first control signal. A second generation sub-module is configured to trigger the second controller to generate a second control signal based on the relay configuration strategy, and drive the second relay group to perform on-off operation by using the second control signal.

[0069] In the embodiments of the present application, the adjustment module 183 further comprises: A first connection sub-module is configured to, if the target input mode is a high-energy input mode, connect an output end of the energy switching device to a first power input end through the first high-voltage end relay and connect a second power input end to a ground end of the energy switching device through the first ground end relay based on the first configuration strategy, wherein power energy of the first power input end is higher than that of the second power input end. The second connection sub-module connects the output end of the energy switching device with the second power input end through the second high-voltage end relay and connects the third power input end with the ground end of the energy switching device through the second ground end relay based on the second configuration strategy if the target input mode is a low-energy input mode, wherein the power energy of the second power input end is higher than that of the third power input end.

[0070] In the embodiment of the present application, the first generating sub-module is configured to generate initial alternating current energy through an inverter unit, perform isolation conversion on the initial alternating current energy through an isolation unit to obtain candidate alternating current energy, convert the candidate alternating current energy into a pulse direct current signal through a rectifier unit, and process the pulse direct current signal through a voltage stabilizing unit to obtain a first control signal.

[0071] In the embodiment of the present application, the inverter unit is configured to generate a pulse width modulation signal with a specific duty cycle through a drive chip, and control a switching tube to perform on-off operation by using the pulse width modulation signal, so as to convert the initial direct current energy into initial alternating current energy.

[0072] In the embodiment of the present application, the isolation unit is configured to receive the initial alternating current energy through a first side winding, and adjust the initial alternating current energy according to the number of turns ratio between the first side winding and a second side winding to obtain the candidate alternating current energy.

[0073] In the embodiment of the present application, the device further comprises a delay switching module configured to process a mode switching instruction through a third controller to generate a delay switching signal, wherein the delay switching signal is an off signal generated by an analog circuit when the level of the control signal jumps, or a switching signal output after the control signal is delayed by a preset delay program in a digital chip; and the different potential characteristic relay groups are controlled to perform on-off operation according to a preset time sequence based on the delay switching signal.

[0074] Please refer to Figure 19 , Figure 19 is a structural schematic diagram of a computer device provided by an optional embodiment of the present application, as Figure 19As shown, the computer device includes one or more processors 10, memory 20, and interfaces 30 for external devices such as modems and other means commonly used for connecting computer systems to other computational systems and devices. Examples of such interfaces include, but are not limited to, modems, modem banks, optical transmission interfaces, network adapters, and the like. Utilization of these and other interfaces for interfacing computer system 100 to other computational systems, devices, and various entities is well known in the art since the inception of computer systems themselves and, as such, need not be discussed at length here.

[0075] Processor 10 can be a central processing unit, a network processing unit, or a combination thereof. Processor 10 can further include a hardware chip. The hardware chip can be an application specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device can be a complex programmable logic device, a field programmable logic device, a general array logic, or any combination thereof.

[0076] Memory 20 stores instructions and receives data from at least one processor 10. The instructions and data include code for implementing embodiments of the present disclosure. Memory 20 further includes a file system for mapping an address of each data item to a location of the data item on memory 20.

[0077] Memory 20 can include a program storage area and a data storage area. The program storage area can store an operating system, application programs, and program modules. The data storage area can store data used by the operating system, application programs, and program modules, as well as data created by the use of the computer device. Memory 20 can further include a high-speed random access memory, and can also include a nonvolatile memory, such as a flash memory, a hard disk drive, or a solid-state drive. In some alternative embodiments, memory 20 can optionally include a remote memory that is located remotely from processor 10, and can be connected to the computer device through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0078] Memory 20 can include a volatile memory, such as a random access memory, and a non-volatile memory, such as a flash memory, a hard disk drive, or a solid-state drive. Memory 20 can also include a combination of the above-mentioned types of memories.

[0079] The computer device further includes a communication interface 30 for communicating with other devices or communication networks.

[0080] The embodiments of the present application further provide a computer readable storage medium, and the method according to the embodiments of the present application can be implemented in hardware, firmware, or recorded in a storage medium, or be implemented as computer codes stored in a remote storage medium or a non-transitory machine readable storage medium and downloaded through a network and stored in a local storage medium, so that the method described herein can be processed by such software on a storage medium using a general purpose computer, a special purpose processor, or programmable or special hardware. The storage medium can be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid state disk, etc. Further, the storage medium can also include a combination of the above-mentioned types of memories. It can be understood that the computer, the processor, the microprocessor controller, or the programmable hardware includes a storage component that can store or receive software or computer codes, when the software or computer codes are accessed and executed by the computer, the processor, or the hardware, the method shown in the above embodiments is implemented.

[0081] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. An energy switching method, characterized in that, The method includes: Detect mode switching commands for the energy switching device; The target input mode and the corresponding relay configuration strategy are determined based on the mode switching instruction. Based on the relay configuration strategy, the connection status of relay groups with different potential characteristics in the energy switching device is adjusted so that the energy switching device switches to the target input mode.

2. The method according to claim 1, characterized in that, The energy switching device includes a first controller, a second controller, a first relay group, and a second relay group. The first controller is used to control the connection status of the first relay group, and the second controller is used to control the connection status of the second relay group. The first relay group includes at least a first high-voltage end relay and a second high-voltage end relay, and the second relay group includes at least a first ground end relay and a second ground end relay.

3. The method according to claim 2, characterized in that, Adjusting the connection status of relay groups with different potential characteristics in the energy switching device based on the relay configuration strategy includes: Based on the relay configuration strategy, the first controller is triggered to generate a first control signal, and the first control signal is used to drive the first relay group to perform on / off operations. Based on the relay configuration strategy, the second controller is triggered to generate a second control signal, and the second control signal is used to drive the second relay group to perform on / off operations.

4. The method according to claim 2, characterized in that, Adjusting the connection status of relay groups with different potential characteristics in the energy switching device based on the relay configuration strategy includes: If the target input mode is a high-energy input mode, then based on the first configuration strategy, the output terminal of the energy switching device is connected to the first power input terminal through the first high-voltage relay, and the second power input terminal is connected to the ground terminal of the energy switching device through the first ground relay, wherein the power energy of the first power input terminal is higher than the power energy of the second power input terminal. If the target input mode is a low-energy input mode, then based on the second configuration strategy, the output terminal of the energy switching device is connected to the second power input terminal through the second high-voltage relay, and the third power input terminal is connected to the ground terminal of the energy switching device through the second ground relay, wherein the power energy of the second power input terminal is higher than the power energy of the third power input terminal.

5. The method according to claim 3, characterized in that, The first controller includes at least an inverter unit, an isolation unit, a rectifier unit, and a voltage regulator unit; the step of triggering the first controller to generate a first control signal based on the relay configuration strategy includes: The inverter unit generates initial AC power. The initial AC power is isolated and transformed by the isolation unit to obtain candidate AC power. The rectifier unit converts the candidate AC power into a pulsed DC signal. The pulsed DC signal is processed by the voltage regulator unit to obtain the first control signal.

6. The method according to claim 5, characterized in that, The inverter unit includes at least a half-bridge inverter topology or a full-bridge inverter topology, wherein the half-bridge inverter topology consists of two switching transistors and a driver chip, and the full-bridge inverter topology consists of four switching transistors and a driver chip. The process of generating initial AC power through the inverter unit includes: generating a pulse width modulation signal with a specific duty cycle through the driver chip, and using the pulse width modulation signal to control the switching transistor to perform on / off operations, so as to convert the initial DC power into the initial AC power.

7. The method according to claim 5, characterized in that, The isolation unit includes at least a first side winding and a second side winding, wherein the first side winding is connected to the output terminal of the inverter unit, and the second side winding is connected to the input terminal of the rectifier unit. The step of isolating and transforming the initial AC power through the isolation unit to obtain candidate AC power includes: receiving the initial AC power through the first side winding, and adjusting the initial AC power according to the turns ratio of the first side winding to the second side winding to obtain the candidate AC power.

8. The method according to claim 2, characterized in that, The energy switching device further includes a third controller, wherein the third controller is configured to perform a delay processing operation on the control signal for the relay group; after detecting a mode switching command for the energy switching device, the method further includes: The third controller processes the mode switching command to generate a delayed switching signal. The delayed switching signal is either a shutdown signal generated by an analog circuit when the control signal level changes, or a switching signal output after the control signal is delayed by a preset delay program in a digital chip. Based on the delayed switching signal, relay groups with different potential characteristics are controlled to perform on / off operations according to a preset timing sequence.

9. An energy switching device, characterized in that, The device includes: The detection module is used to detect mode switching commands for the energy switching device; The determination module is used to determine the target input mode and the corresponding relay configuration strategy based on the mode switching instruction; An adjustment module is used to adjust the connection status of relay groups with different potential characteristics in the energy switching device based on the relay configuration strategy, so that the energy switching device can switch to the target input mode.

10. A computer device, characterized in that, include: A memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, the processor executing the computer instructions to perform the method of any one of claims 1 to 8.

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