Intelligent cooperative control method and system for multi-module high-voltage switching power supply

Abstract

The invention discloses an intelligent cooperative control method and system for a multi-module high-voltage switching power supply, and relates to the technical field of power electronics, and the system comprises a central processor, an input circuit module, a power conversion circuit module, an output circuit module, a control circuit module, an auxiliary power supply unit, a communication unit, and a heat dissipation unit. The intelligent cooperative control unit monitors and controls the operation state of the whole switching power supply system. The intelligent cooperative control unit is integrated in the central processing unit, intelligent cooperation of the multi-module high-voltage switching power supply can realize redundancy design to ensure continuous and stable operation of the power supply system, accurate control of output power of each module is realized through intelligent cooperation, overload or light load operation is avoided, and the reliability of the power supply system is improved. The efficiency of the whole high-voltage switching power supply system is improved, and the intelligent cooperative system can dynamically adjust load distribution of each module according to actual requirements to realize more efficient energy utilization, so that the system can be flexibly configured and expanded according to the actual requirements.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and in particular to an intelligent collaborative control method and system for a multi-module high-voltage switching power supply. Background Art

[0002] A multi-module high-voltage switching power supply is a modular power supply device that integrates multiple high-voltage generators, power converters and control circuits. The working principle of the multi-module high-voltage switching power supply mainly involves the conversion process from AC to DC. The multi-module high-voltage switching power supply is composed of multiple independent power modules. Each module can provide high-voltage output and realize the output and regulation of the overall power supply through the control system. The multi-module high-voltage switching power supply is widely used in medical equipment, industrial automation, aerospace, scientific research experiments and other technical fields due to its high efficiency, stability and reliability.

[0003] The defects of the high-voltage switching power supply control system in the prior art are: 1. Patent document CN103401428B discloses a switching power supply control chip and a switching power supply control system. The control system cannot realize intelligent coordination among multiple modules, cannot ensure the continuous and stable operation of the power supply system, cannot accurately control the output power of each module, and is prone to overload or underload operation, which reduces the efficiency of the entire high-voltage switching power supply system and cannot adapt to different application scenarios and changes in demand.

[0004] 2. Patent document CN219351523U discloses a switching power supply control circuit and a switching power supply. The communication delay between the modules of the control circuit is relatively large, resulting in poor real-time performance of the coordinated control instructions, which affects the dynamic response performance of the system.

[0005] 3. Patent document CN111478583B discloses a switching power supply control circuit and a switching power supply control method using the circuit. The control circuit cannot ensure a reasonable distribution of power output between modules. Changes in the external environment and load conditions during the use of the high-voltage switching power supply will lead to poor working performance, and it is impossible to optimize and improve system performance to accurately control each power module.

[0006] 4. Patent document CN207882700U discloses a multi-module integrated control system for a high-power switching power supply. The coordination algorithm of the control system is highly complex and requires a large amount of calculation, which limits the scalability and flexibility of the system to a certain extent. It is difficult to adapt to various working conditions, resulting in the system being difficult to achieve the optimal coordination effect in actual operation. Summary of the invention

[0007] The object of the present invention is to provide an intelligent coordinated control method and system for a multi-module high-voltage switching power supply to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: an intelligent collaborative control system for a multi-module high-voltage switching power supply, comprising a central processing unit, an input circuit module, a power conversion circuit module, an output circuit module, a control circuit module, an auxiliary power supply unit, a communication unit and a heat dissipation unit, wherein the central processing unit is integrated with an intelligent collaborative control unit, and the intelligent collaborative control unit monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current and temperature parameters and adjusts the working state of each module; The intelligent collaborative control unit communicates with the control circuit module to achieve real-time monitoring and control of the entire system, and adjusts the PWM signal frequency and duty cycle of the control circuit as needed.

[0009] Preferably, the intelligent collaborative control unit adjusts the protection mechanism of the input circuit by monitoring the changes in the input voltage and current of the input circuit module to prevent the occurrence of overvoltage and overcurrent abnormal conditions, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply.

[0010] Preferably, the intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module to achieve the stability of the output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes.

[0011] Preferably, the intelligent collaborative control unit monitors changes in the output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, optimizes the output circuit parameters according to the load demand, and the intelligent collaborative control unit monitors the output voltage and current of the auxiliary power supply unit to ensure its stable operation, and dynamically adjusts the output power of the auxiliary power supply to meet the power supply requirements of other modules.

[0012] Preferably, the intelligent collaborative control unit transmits data and issues instructions with other modules through the communication unit, and adopts a high-speed and reliable communication protocol to ensure real-time communication and data synchronization between each module. The intelligent collaborative control unit monitors the temperature of the system and adjusts the working state of the heat dissipation unit, and dynamically adjusts the heat dissipation strategy according to the system load and temperature changes to ensure that the system temperature always remains within a safe range.

[0013] An intelligent collaborative control method for a multi-module high-voltage switching power supply is applicable to an intelligent collaborative control system for a multi-module high-voltage switching power supply, preferably comprising the following steps: step S1, data acquisition and monitoring; step S2, load demand analysis and prediction; step S3, dynamic adjustment and allocation; step S4, fault detection, processing and monitoring diagnosis.

[0014] Preferably, the data collection and monitoring steps are as follows: the control circuit module collects the changes in the input voltage and current of the input circuit module and the current, voltage and temperature parameters of each power module in real time through sensors, and analyzes the collected data in real time to detect the working status and performance of the power module.

[0015] Preferably, the load demand analysis and prediction step is as follows: the intelligent collaborative control unit calculates the required power output according to the actual load demand of the power conversion circuit module, predicts future load demand changes and adjusts the power output of the output circuit module in advance; The dynamic adjustment and allocation steps are as follows: according to the load demand and the working status of the power module, the intelligent collaborative control unit dynamically adjusts the power output of the output circuit module, and the fuzzy control algorithm ensures that the power output distribution between the modules is reasonable.

[0016] Preferably, a fuzzy control algorithm is used to perform intelligent collaborative control on the high-voltage switching power supply module, and the algorithm formula is as follows:

[0017] Preferably, the fault detection processing and monitoring diagnosis steps are as follows: the intelligent collaborative control unit has a fault detection function, which can promptly discover and process the fault of the control circuit module. Remote monitoring and diagnosis through the communication unit allows maintenance personnel to monitor and manage the system without visiting the site. Through the communication unit, maintenance personnel can obtain the system's operating status and performance parameters in real time, and perform remote fault diagnosis and elimination.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention integrates an intelligent collaborative control unit in the central processing unit. The intelligent collaboration of multi-module high-voltage switching power supplies can realize redundant design to ensure the continuous and stable operation of the power supply system. The intelligent collaborative system monitors the working status of each module in real time, promptly discovers and handles potential faults to further improve the reliability of the system. Intelligent collaboration realizes precise control of the output power of each module to avoid overload or underload operation, thereby improving the efficiency of the entire high-voltage switching power supply system. The intelligent collaborative system can also dynamically adjust the load distribution of each module according to actual needs to achieve more efficient energy utilization. The intelligent collaboration of multi-module high-voltage switching power supplies allows the system to be flexibly configured and expanded according to actual needs, and better adapt to different application scenarios and changes in demand.

[0019] 2. The present invention ensures reasonable distribution of power output among modules through fuzzy control algorithm. The fuzzy control algorithm shows superior performance in processing complex, large-lag, and difficult-to-establish accurate mathematical model nonlinear systems of high-voltage switching power supply modules. Fuzzy control can adapt well to its control needs. Fuzzy control has good robustness and adaptability, can cope with external interference and load changes, and maintain stable operation of the system. The external environment and load conditions may change during the use of the high-voltage switching power supply, requiring the control system to be able to adaptively adjust to maintain performance. Fuzzy control achieves control through fuzzy rules and fuzzy reasoning, which gives it certain advantages in control accuracy and flexibility. Fuzzy control is used to avoid tedious derivation and calculation of complex mathematical models and algorithms in traditional control methods, and accurately controls high-voltage switching power supply modules to achieve optimization and improvement of system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a diagram of the intelligent collaborative control system of the present invention; Figure 2 It is a schematic diagram of the working process of the control system of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection or a movable connection, or a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1, an embodiment provided by the present invention: an intelligent collaborative control system of a multi-module high-voltage switching power supply, comprising a central processing unit, an input circuit module, a power conversion circuit module and an output circuit module, wherein an intelligent collaborative control unit is integrated in the central processing unit, and the intelligent collaborative control unit monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current and temperature parameters and adjusts the working state of each module; The intelligent collaborative control unit monitors the changes in input voltage and current of the input circuit module, adjusts the protection mechanism of the input circuit, prevents the occurrence of overvoltage and overcurrent abnormalities, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply; The intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module to achieve stable output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes; The intelligent collaborative control unit monitors changes in output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, and optimizes the output circuit parameters according to load requirements.

[0025] Embodiment 2, an embodiment provided by the present invention: an intelligent collaborative control system of a multi-module high-voltage switching power supply, comprising a central processing unit, an input circuit module, a power conversion circuit module, an output circuit module and a control circuit module, wherein an intelligent collaborative control unit is integrated in the central processing unit, and the intelligent collaborative control unit monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current and temperature parameters and adjusts the working state of each module; The intelligent collaborative control unit communicates with the control circuit module to realize real-time monitoring and control of the entire system, and adjusts the PWM signal frequency and duty cycle of the control circuit as needed; The intelligent collaborative control unit monitors the changes in input voltage and current of the input circuit module, adjusts the protection mechanism of the input circuit, prevents the occurrence of overvoltage and overcurrent abnormalities, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply; The intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module to achieve stable output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes; The intelligent collaborative control unit monitors changes in output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, and optimizes the output circuit parameters according to load requirements.

[0026] Embodiment 3, an embodiment provided by the present invention: an intelligent collaborative control system of a multi-module high-voltage switching power supply, comprising a central processing unit, an input circuit module, a power conversion circuit module, an output circuit module, a control circuit module and an auxiliary power supply unit, wherein an intelligent collaborative control unit is integrated in the central processing unit, and the intelligent collaborative control unit monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current and temperature parameters and adjusts the working state of each module; The intelligent collaborative control unit communicates with the control circuit module to realize real-time monitoring and control of the entire system, and adjusts the PWM signal frequency and duty cycle of the control circuit as needed; The intelligent collaborative control unit monitors the changes in input voltage and current of the input circuit module, adjusts the protection mechanism of the input circuit, prevents the occurrence of overvoltage and overcurrent abnormalities, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply; The intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module to achieve stable output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes; The intelligent collaborative control unit monitors the changes in output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, and optimizes the output circuit parameters according to the load requirements; The intelligent collaborative control unit monitors the output voltage and current of the auxiliary power supply unit to ensure its stable operation, and dynamically adjusts the output power of the auxiliary power supply to meet the power requirements of other modules.

[0027] Embodiment 4, an embodiment provided by the present invention: an intelligent collaborative control system of a multi-module high-voltage switching power supply, comprising a central processing unit, an input circuit module, a power conversion circuit module, an output circuit module, a control circuit module, an auxiliary power supply unit and a communication unit, wherein an intelligent collaborative control unit is integrated in the central processing unit, and the intelligent collaborative control unit monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current, and temperature parameters, and adjusts the working state of each module; The intelligent collaborative control unit communicates with the control circuit module to realize real-time monitoring and control of the entire system, and adjusts the PWM signal frequency and duty cycle of the control circuit as needed; The intelligent collaborative control unit monitors the changes in input voltage and current of the input circuit module, adjusts the protection mechanism of the input circuit, prevents the occurrence of overvoltage and overcurrent abnormalities, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply; The intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module to achieve stable output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes; The intelligent collaborative control unit monitors the changes in output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, and optimizes the output circuit parameters according to the load requirements; The intelligent collaborative control unit monitors the output voltage and current of the auxiliary power unit to ensure its stable operation, and dynamically adjusts the output power of the auxiliary power unit to meet the power requirements of other modules; The intelligent collaborative control unit transmits data and issues instructions to other modules through the communication unit, and adopts high-speed and reliable communication protocols to ensure real-time communication and data synchronization between modules.

[0028] Embodiment 5, an embodiment provided by the present invention: an intelligent collaborative control system of a multi-module high-voltage switching power supply, comprising a central processing unit, an input circuit module, a power conversion circuit module, an output circuit module, a control circuit module, an auxiliary power supply unit, a communication unit and a heat dissipation unit, wherein an intelligent collaborative control unit is integrated in the central processing unit, and the intelligent collaborative control unit monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current and temperature parameters and adjusts the working state of each module; The intelligent collaborative control unit communicates with the control circuit module to realize real-time monitoring and control of the entire system, and adjusts the PWM signal frequency and duty cycle of the control circuit as needed; The intelligent collaborative control unit monitors the changes in input voltage and current of the input circuit module, adjusts the protection mechanism of the input circuit, prevents the occurrence of overvoltage and overcurrent abnormalities, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply; The intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module to achieve stable output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes; The intelligent collaborative control unit monitors the changes in output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, and optimizes the output circuit parameters according to the load requirements; The intelligent collaborative control unit monitors the output voltage and current of the auxiliary power unit to ensure its stable operation, and dynamically adjusts the output power of the auxiliary power unit to meet the power requirements of other modules; The intelligent collaborative control unit transmits data and issues instructions to other modules through the communication unit, and adopts high-speed and reliable communication protocols to ensure real-time communication and data synchronization between modules; The intelligent collaborative control unit monitors the system temperature and adjusts the working status of the cooling unit, such as the fan speed and the heat dissipation area of ​​the heat sink. It dynamically adjusts the cooling strategy according to the system load and temperature changes to ensure that the system temperature always remains within a safe range.

[0029] Embodiment 6, based on the above embodiment, the present invention provides an embodiment: an intelligent collaborative control method for a multi-module high-voltage switching power supply, comprising the following steps: step S1, data acquisition and monitoring; step S2, load demand analysis and prediction; step S3, dynamic adjustment and allocation; step S4, fault detection and processing; step S5, remote monitoring and diagnosis; The steps of data collection and monitoring are as follows: the control circuit module collects the changes of input voltage and current of the input circuit module and the current, voltage and temperature parameters of each power module in real time through sensors, and analyzes the collected data in real time to detect the working status and performance of the power module; The load demand analysis and prediction steps are as follows: the intelligent collaborative control unit calculates the required power output according to the actual load demand of the power conversion circuit module, predicts future load demand changes and adjusts the power output of the output circuit module in advance; The steps of dynamic adjustment and allocation are as follows: according to the load demand and the working status of the power module, the intelligent collaborative control unit dynamically adjusts the power output of the output circuit module, and the fuzzy control algorithm ensures that the power output distribution between the modules is reasonable; The fuzzy control algorithm is used to perform intelligent collaborative control on the high-voltage switching power supply module. The algorithm formula is as follows: , The steps of fault detection, processing and monitoring diagnosis are as follows: the intelligent collaborative control unit has a fault detection function, which can detect and handle the fault of the control circuit module in time. When a fault is detected, the control unit will take appropriate measures to shut down the faulty module and start the backup module to ensure the stable operation of the system. The use of remote monitoring and diagnosis allows maintenance personnel to monitor and manage the system without visiting the site in person. Through the communication unit, maintenance personnel can obtain the system's operating status and performance parameters in real time, and perform remote fault diagnosis and elimination; The intelligent collaborative control unit transmits data and issues instructions to other modules through the communication unit, and adopts high-speed and reliable communication protocols to ensure real-time communication and data synchronization between modules. The intelligent collaborative control unit monitors the system temperature and adjusts the working status of the cooling unit. It dynamically adjusts the cooling strategy according to the system load and temperature changes to ensure that the system temperature always remains within a safe range.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An intelligent collaborative control system for a multi-module high-voltage switching power supply, characterized in that: It includes a central processing unit, an input circuit module, a power conversion circuit module, an output circuit module, a control circuit module, an auxiliary power supply unit, a communication unit and a heat dissipation unit. The central processing unit is integrated with an intelligent collaborative control unit, which monitors and controls the operating state of the entire switching power supply system, analyzes voltage, current, and temperature parameters, and adjusts the working state of each module; The intelligent collaborative control unit communicates with the control circuit module to achieve real-time monitoring and control of the entire system, and adjusts the PWM signal frequency and duty cycle of the control circuit as needed.

2. The intelligent coordinated control system of a multi-module high-voltage switching power supply according to claim 1, characterized in that: The intelligent collaborative control unit adjusts the protection mechanism of the input circuit by monitoring the changes in the input voltage and current of the input circuit module to prevent the occurrence of overvoltage and overcurrent abnormalities, and optimizes the operation of the power factor correction circuit according to the quality of the input power supply.

3. The intelligent coordinated control system of a multi-module high-voltage switching power supply according to claim 1, characterized in that: The intelligent collaborative control unit accurately controls the on and off time of the power switch tube of the power conversion circuit module, achieves the stability of the output voltage and current, and dynamically adjusts the output power of the power conversion circuit module according to load changes.

4. The intelligent coordinated control system of a multi-module high-voltage switching power supply according to claim 1, characterized in that: The intelligent collaborative control unit monitors changes in the output voltage and current of the output circuit module, adjusts the protection mechanism of the output circuit, and optimizes the output circuit parameters according to load requirements. The intelligent collaborative control unit monitors the output voltage and current of the auxiliary power supply unit to ensure its stable operation, and dynamically adjusts the output power of the auxiliary power supply to meet the power requirements of other modules.

5. The intelligent coordinated control system of a multi-module high-voltage switching power supply according to claim 1, characterized in that: The intelligent collaborative control unit transmits data and issues instructions to other modules through the communication unit, and adopts a high-speed and reliable communication protocol to ensure real-time communication and data synchronization between the modules. The intelligent collaborative control unit monitors the temperature of the system and adjusts the working state of the heat dissipation unit, and dynamically adjusts the heat dissipation strategy according to the system load and temperature changes to ensure that the system temperature always remains within a safe range.

6. An intelligent collaborative control method for a multi-module high-voltage switching power supply, applicable to an intelligent collaborative control system for a multi-module high-voltage switching power supply according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: step S1, data collection and monitoring; step S2, load demand analysis and prediction; step S3, dynamic adjustment and allocation; step S4, fault detection, processing and monitoring diagnosis.

7. The intelligent coordinated control method of a multi-module high-voltage switching power supply according to claim 6 is characterized in that: The data collection and monitoring steps are as follows: the control circuit module collects the changes in the input voltage and current of the input circuit module and the current, voltage and temperature parameters of each power module in real time through sensors, and analyzes the collected data in real time to detect the working status and performance of the power module.

8. The intelligent coordinated control method of a multi-module high-voltage switching power supply according to claim 6 is characterized in that: The load demand analysis and prediction steps are as follows: the intelligent collaborative control unit calculates the required power output according to the actual load demand of the power conversion circuit module, predicts future load demand changes and adjusts the power output of the output circuit module in advance; The dynamic adjustment and allocation steps are as follows: according to the load demand and the working status of the power module, the intelligent collaborative control unit dynamically adjusts the power output of the output circuit module, and the fuzzy control algorithm ensures that the power output distribution between the modules is reasonable.

9. The intelligent coordinated control method of a multi-module high-voltage switching power supply according to claim 8, characterized in that: The fuzzy control algorithm is used to perform intelligent collaborative control on the high-voltage switching power supply module. The algorithm formula is as follows: 。 10. The intelligent coordinated control method of a multi-module high-voltage switching power supply according to claim 6, characterized in that: The fault detection processing and monitoring diagnosis steps are as follows: the intelligent collaborative control unit has a fault detection function, which can promptly discover and handle faults in the control circuit module. Remote monitoring and diagnosis through the communication unit enable maintenance personnel to monitor and manage the system without visiting the site. Through the communication unit, maintenance personnel can obtain the system's operating status and performance parameters in real time, and perform remote fault diagnosis and elimination.

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