Complex power control system based on double main control modules
By using a dual-master control module system to process high and low power signals, the system solves the problems of control accuracy and availability under complex working conditions in the traditional single-master control PLC architecture, and realizes efficient and reliable control of multi-load devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU CHANGFENG AVIATION ELECTRONICS
- Filing Date
- 2025-12-17
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional single-master PLC architecture cannot effectively manage diverse load devices under complex working conditions, resulting in problems such as low control accuracy, redundant false alarms, and insufficient system availability.
A complex power control system based on dual master control modules is adopted, including a power supply module, an arbitration module, and dual master control modules. High-power and low-power signals are processed by the first CPU module and the second CPU module, respectively. Logic discrimination and signal distribution are performed by FPGA, and signal processing is combined with high-pass and low-pass filters to ensure the accuracy of control signals and the fault tolerance of the system.
It improves the accuracy and reliability of complex power control, reduces the probability of dual system downtime, enables flexible control of high and low power loads, and ensures the continuity and reliability of control signals.
Smart Images
Figure CN121879083A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power control technology, and in particular to a complex power control system based on dual master control modules. Background Technology
[0002] Currently, mature control solutions based on programmable logic controllers (PLCs) are widely used in industrial-grade and high-reliability thermal management systems. PLC modules excel in sequential control and logic processing due to their high reliability, strong anti-interference capabilities, and modular design. Traditional power control systems typically employ a single-master PLC architecture, where one main controller handles data acquisition, logic operations, and power drive command output. However, with the expansion of system scale, the diversification of controlled objects (such as simultaneously managing compressors, pumps, fans, PTC heaters, electronic expansion valves, and other actuators), and the extreme demands for system availability, the single-master architecture has gradually revealed its limitations in handling complex operating conditions, multi-point coordinated control, and fault tolerance. Existing power control methods suffer from low accuracy, control redundancy, false alarms, and erroneous processing leading to system shutdowns. Summary of the Invention
[0003] In view of this, embodiments of this application provide a complex power control system based on dual master control modules, which at least partially solves the problem that traditional control architecture systems in the prior art cannot simultaneously control and communicate with multiple high-power load devices and multiple low-power load devices.
[0004] This application provides a complex power control system based on a dual-master control module. The system includes a power supply module, an arbitration module, and a dual-master control module. The dual-master control module includes a data acquisition module, a first CPU module, and a second CPU module. The power supply module provides power to the arbitration module and the dual-master control module, as well as input and output of complex power load signals. The data acquisition module receives complex power load signals from the power supply module and transmits them to the arbitration module. The arbitration module determines whether the acquired complex power load signal is a high-power signal or a low-power signal, and transmits the high-power signal to the first CPU module and the low-power signal to the second CPU module. The first CPU module performs real-time on / off control of the external load based on the high-power signal, and the second CPU module performs real-time on / off control of the external load based on the low-power signal.
[0005] According to a specific implementation of an embodiment of this application, the first CPU module includes a first data processing module and a first data control module. The first data processing module is connected to the arbitration module, and the first data control module is connected to an external load.
[0006] According to one specific implementation of an embodiment of this application, a high-pass filter is provided in the first data processing module.
[0007] According to a specific implementation of an embodiment of this application, the second CPU module includes a second data processing module and a second data control module. The second data processing module is connected to the arbitration module, and the second data control module is connected to an external load.
[0008] According to one specific implementation of an embodiment of this application, the second data processing module includes a low-pass filter.
[0009] According to a specific implementation of an embodiment of this application, the first data control module controls the real-time on / off control of a high-power 300V external load by controlling the data output by the first data processing module through a first bridging processing strategy.
[0010] According to a specific implementation of an embodiment of this application, the first bridging processing strategy is to use a 5V circuit to control the optical MOS, then use a solid-state relay to output 24V, and then use a contactor to output 300V power.
[0011] According to a specific implementation of an embodiment of this application, the second data control module controls the real-time on / off control of a low-power 24V external load by using the data output by the second data processing module through a second bridging processing strategy.
[0012] According to a specific implementation of an embodiment of this application, the first bridging processing strategy is to use a 5V circuit to control the optical MOS and then use a solid-state relay to output 24V power.
[0013] According to one specific implementation of an embodiment of this application, the power supply module includes a filter circuit, a protection circuit, an isolation circuit, and a redundant circuit.
[0014] Beneficial effects: The complex power control system based on dual master control modules in this embodiment verifies the control signals to ensure their accuracy and reduce the probability of dual system failure. This method, which separately controls the high-power and low-power control signals, improves the accuracy of complex power control, avoids mutual interference between control output channels, and keeps the overall system control delay within 10 microseconds. Due to the system's flexible configuration, it can output multiple different types of load channel signals for high and low power loads, enabling real-time output control of complex power in complex environments. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a framework diagram of a complex power control system based on dual main control modules according to an embodiment of the present invention; Figure 2 A flowchart of a first data control module according to an embodiment of the present invention; Figure 3 A flowchart of a second data control module according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a 5V circuit controlling a 24V output circuit according to an embodiment of the present invention. Detailed Implementation
[0017] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0018] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0021] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.
[0022] This application provides a complex power control system based on dual main control modules, as described below. Figures 1 to 4 Provide a detailed description.
[0023] In one embodiment, refer to Figure 1 A complex power control system based on a dual-master control module is provided. The system includes a power supply module, an arbitration module, and a dual-master control module. The dual-master control module includes a data acquisition module, a first CPU module, and a second CPU module. The power supply module provides power to the arbitration module and the dual-master control module, as well as the input and output of complex power load signals. The data acquisition module receives complex power load signals from the power supply module and transmits them to the arbitration module. The arbitration module determines whether the acquired complex power load signal is a high-power signal or a low-power signal (by monitoring and acquiring the status of the input 300V DC power supply signal to obtain communication and control status results), and transmits the high-power signal to the first CPU module and the low-power signal to the second CPU module. The first CPU module performs real-time on / off control of the external load based on the high-power signal, and the second CPU module performs real-time on / off control of the external load based on the low-power signal (by selecting separate on / off modes for high and low power based on communication status results and communication control results, thus realizing the control output of the dual CPUs).
[0024] In this embodiment, the high-power and low-power control methods of the dual main control module are mainly achieved through logic discrimination using FPGA, which controls the two CPUs and realizes the construction of a high-power and low-power control system. This allows one CPU to control the high-power load device and the other CPU to control the low-power load device, thereby ensuring that the two CPUs can simultaneously control the signals of the high-power load device and the low-power load device, guaranteeing the continuity and reliability of the control signals, and thus improving the fault tolerance of the system.
[0025] In practical implementation, the power supply module provides power to the arbitration module and the dual-main control CPU module, as well as handles complex power load signal input and output. The data acquisition module collects the data signals output by the power supply module, performs normalization processing, and inputs the processed data to the arbitration module. The arbitration module includes a signal selection module and a signal acquisition module, which group and manage the collected data signals according to heartbeat signal discrimination, and outputs the high-power input signals to the first CPU module and the second CPU module. In the process of controlling complex power loads, a clear and simple decision optimization logic is adopted. The FPGA module in the signal selection module judges the high-power load signal and low-power load signal based on the heartbeat signal status, selecting the first CPU module and the second CPU module to operate. This allows the system to flexibly adjust according to system conditions, ensuring the input of 300V DC power and 28.5V DC power, while simultaneously achieving stable output control of multiple high-power and low-power channels according to application requirements.
[0026] This embodiment employs a dual-CPU + FPGA architecture, acquiring three 300V DC high-power voltage inputs and one 28.5V DC low-power voltage input. Simultaneously, it performs calculations and controls on the three 300V inputs, enabling the conversion of the three 300V DC power inputs to control four 300V high-power load devices and four 24V low-power load devices. This solves the problem that traditional control architecture systems cannot simultaneously control and communicate with four 300V high-power devices and four 24V low-power load devices.
[0027] Furthermore, the first CPU module includes a first data processing module and a first data control module. The first data processing module is connected to the arbitration module, and the first data control module is connected to an external load.
[0028] In practice, the arbitration module groups the collected data signals and manages them according to heartbeat signals. It outputs the high-power input signal to the first data processing module and the low-power signal to the second data processing module.
[0029] Furthermore, the first data processing module includes a high-pass filter. This high-pass filter filters the data received by the data acquisition module, removing noisy low-frequency signal data and retaining high-frequency signal data before sending it to the first data control module.
[0030] Furthermore, the second CPU module includes a second data processing module and a second data control module. The second data processing module is connected to the arbitration module, and the second data control module is connected to an external load.
[0031] Furthermore, the second data processing module includes a low-pass filter. This second data processing module filters the data received by the data acquisition module using the low-pass filter, removing noisy high-frequency signal data and retaining the low-frequency signal data, before sending it to the second data control module.
[0032] Furthermore, the first data control module uses the data output by the first data processing module to control the real-time on / off switching of the high-power 300V external load through the first bridging processing strategy.
[0033] Furthermore, refer to Figure 2 The first bridging strategy is to use a 5V circuit to control the optical MOS, then use a solid-state relay for 24V output, and then use a contactor for 300V power output.
[0034] Furthermore, the second data control module uses the data output by the second data processing module to control the real-time on / off switching of the low-power 24V external load through the second bridging processing strategy.
[0035] Furthermore, refer to Figure 3 The second bridging strategy is to use a 5V circuit to control the optical MOS and then use a solid-state relay for 24V power output.
[0036] In practical implementation, the principle of the 5V circuit controlling the 24V output circuit is as follows: Figure 4 .
[0037] Furthermore, the power module includes a filter circuit, a protection circuit, an isolation circuit, and a redundancy circuit.
[0038] Furthermore, the signal gating module communicates with the dual main control module, and uses the heartbeat signal to distinguish the received power data signal. The high-power data signal is output to the first CPU module, and the low-power data signal is output to the second CPU module.
[0039] The embodiments provided by this invention offer a complex power control system for dual master control modules. High-pass and low-pass filters are designed to process high-power load signals and low-power load signals respectively, improving the accuracy of power on / off control. Employing two CPU modules to process different power load signals significantly improves system performance, reduces interference from external noise signals, and substantially lowers the probability of all loads failing to function properly due to a single system failure during environmental testing. This invention is used for complex power load control and signal exchange in the thermal management system of ultra-large equipment, greatly improving the efficiency of complex power load calculation and processing under complex environments. Within this framework, different functionalities can be developed according to operational needs.
[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A complex power control system based on dual master control modules, characterized in that, The system includes a power supply module, an arbitration module, and a dual main control module. The dual main control module includes a data acquisition module, a first CPU module, and a second CPU module. The power supply module provides power to the arbitration module and the dual main control module, as well as input and output of complex power load signals. The data acquisition module receives complex power load signals from the power supply module and transmits them to the arbitration module. The arbitration module determines whether the acquired complex power load signal is a high-power signal or a low-power signal, and transmits the high-power signal to the first CPU module and the low-power signal to the second CPU module. The first CPU module performs real-time on / off control of the external load based on the high-power signal, and the second CPU module performs real-time on / off control of the external load based on the low-power signal.
2. The complex power control system based on dual master control modules according to claim 1, characterized in that, The first CPU module includes a first data processing module and a first data control module. The first data processing module is connected to the arbitration module, and the first data control module is connected to an external load.
3. The complex power control system based on dual master control modules according to claim 2, characterized in that, The first data processing module is equipped with a high-pass filter.
4. The complex power control system based on dual master control modules according to claim 1, characterized in that, The second CPU module includes a second data processing module and a second data control module. The second data processing module is connected to the arbitration module, and the second data control module is connected to an external load.
5. The complex power control system based on dual master control modules according to claim 4, characterized in that, The second data processing module is equipped with a low-pass filter.
6. The complex power control system based on dual master control modules according to claim 2, characterized in that, The first data control module uses the data output from the first data processing module and the first bridging processing strategy to control the real-time on / off state of the high-power 300V external load.
7. The complex power control system based on dual master control modules according to claim 6, characterized in that, The first bridging strategy is to use a 5V circuit to control the optical MOS, then use a solid-state relay for 24V output, and then use a contactor for 300V power output.
8. The complex power control system based on dual master control modules according to claim 4, characterized in that, The second data control module uses the data output from the second data processing module and the second bridging processing strategy to control the real-time on / off state of the low-power 24V external load.
9. The complex power control system based on dual master control modules according to claim 8, characterized in that, The first bridging strategy is to use a 5V circuit to control the optical MOS and then use a solid-state relay for 24V power output.
10. The complex power control system based on dual master control modules according to claim 1, characterized in that, The power module includes a filter circuit, a protection circuit, an isolation circuit, and a redundancy circuit.