Underwater platform power supply management and control system
By employing power isolation conversion technology and dual redundant output circuits, combined with solid-state relays and multiple communication methods, the reliability and redundancy issues of underwater platform power management equipment have been solved, achieving highly reliable and flexible circuit functions.
Patent Information
- Application Number
- CN202422962976.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing underwater platform power management equipment suffers from limitations such as single communication methods, single-channel power conversion output, and a single initial power output state, which fail to meet the requirements for high redundancy and high reliability.
By employing power isolation conversion technology and dual redundant output circuits, combined with multiple selections of the initial state of solid-state relays, the redundancy of communication methods is increased. Dual communication is achieved through CAN bus and RS232 bus, improving the reliability and flexibility of the system.
The system achieves high reliability and redundancy in the underwater platform power management system, enhances the system's fault resistance, and improves communication reliability and circuit function adaptability.
Smart Images
Figure CN223527966U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to power control equipment field, specifically point to a kind of underwater platform power control system. BACKGROUND
[0002] The task of underwater platform power control is to provide power distribution function for underwater platform system, build bridge between power supply and electrical appliance, provide circuit passage for electrical appliance, since the maintenance and repair of underwater equipment are relatively difficult, so the reliability and maintainability of power control system are crucial, the existing underwater platform power control equipment generally includes power conversion circuit, data processing circuit, drive circuit and power output circuit, power conversion circuit outputs voltage that maintains the working of control system, data processing circuit processes and controls signal, drive circuit sends drive instruction to power output circuit according to the instruction of data processing circuit, the output end of power output circuit is electrically connected with underwater platform, there are the shortcomings such as single communication mode, single output of power conversion circuit, single initial state of power output circuit, which cannot adapt to the demand of high redundancy and high reliability of underwater platform power control. SUMMARY
[0003] The utility model aims at the shortcomings of prior art, provide a kind of underwater platform power control system with high reliability and redundancy.
[0004] The technical scheme for achieving the above-mentioned object includes the following contents.
[0005] A kind of underwater platform power control system, including power conversion circuit, data processing circuit, drive circuit and power output circuit, power conversion circuit outputs voltage that maintains the working of control system, data processing circuit processes and controls signal, drive circuit sends drive instruction to power output circuit according to the instruction of data processing circuit, the output end of power output circuit is electrically connected with underwater platform equipment, the power conversion circuit uses power isolation conversion technology, including two DC-DC isolation power modules K2 and K6 respectively connected with relevant filter circuit to form double-redundancy output circuit, convert DC input power +28V into +5V and +5V1, then pass through three-terminal voltage regulator K5, directly reduce +5V voltage to +3.3V.
[0006] Further, the power output circuit comprises solid-state relays K2 and K3, a transistor Q4 and an optoelectronic coupler Q5, the input end of the optoelectronic coupler Q5 being connected with the driving circuit, the output end of the optoelectronic coupler Q5 being connected with the input end of the transistor Q4, the output end of the transistor Q4 being connected with one input control end of the solid-state relay K2, one input control end of the solid-state relay K3 being connected with the driving circuit, the power output circuit being divided into two modes of initial state conduction and initial state cut-off, the initial state conduction mode being realized by the transistor Q4 and the optoelectronic coupler Q5 of the front-end circuit, and the initial state cut-off mode being realized by the driving instruction n given by the driving circuit to control the solid-state relay K3.
[0007] Further, the data processing circuit comprises a single-chip microcomputer K1 and a bus circuit connected with the single-chip microcomputer K1, the bus circuit comprising a CAN bus circuit and an RS232 bus circuit, the CAN bus circuit being based on a bxCAN controller self-provided by the data processing circuit, cooperating with an external CAN isolation transceiver module T1 to form a CAN bus network, realizing communication with external equipment and real-time data transmission and reception, and the RS232 bus circuit being composed of an RS232 bus transceiver K8 and related circuits, and transmitting instructions sent by an upper computer to the data processing circuit.
[0008] When the underwater platform power management system works, the power conversion circuit outputs two 5V voltages, as optimization, the initial state of the solid-state relay in the power output circuit is divided into conduction and cut-off, which is one more choice than the case that the initial state of the commonly used solid-state relay is cut-off, the power output circuit also has an anti-reverse function to protect the power management system from being damaged due to external circuit failure; as optimization, the bus circuit adopts two communication modes of CAN communication and RS232 communication, and one of the two communication modes can still be used before being damaged.
[0009] Compared with the prior art, the underwater platform power management system converts the input power +28V into main backup dual +5V, improving the circuit conversion reliability of the product; in the optimization scheme, the initial state of the solid-state relay is arbitrarily configured to be conduction or cut-off, which is used to complete various logic operations such as conduction and prohibition of signals, and realize more complex circuit functions according to different requirements; in the optimization scheme, two communication modes are compatible for selection by users, improving the communication reliability. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a principle block diagram of the underwater platform intelligent power management device;
[0011] Figure 2 It is a power conversion circuit block diagram of the underwater platform intelligent power management device;
[0012] Figure 3The switch quantity detection circuit block diagram of the intelligent power management and control device of the underwater platform;
[0013] Figure 4 The data processing circuit block diagram of the intelligent power management and control device of the underwater platform;
[0014] Figure 5 The bus circuit block diagram of the intelligent power management and control device of the underwater platform;
[0015] Figure 6 The drive circuit block diagram of the intelligent power management and control device of the underwater platform;
[0016] Figure 7 The power output circuit block diagram of the intelligent power management and control device of the underwater platform. DETAILED DESCRIPTION
[0017] The utility model will be specifically explained below in combination with embodiments.
[0018] Referring to Figures 1 to 7 , an underwater platform power management and control system, comprising a power conversion circuit, a data processing circuit, a drive circuit and a power output circuit, the power conversion circuit outputs a voltage to maintain the operation of the management and control system, the data processing circuit processes and controls signals, the drive circuit sends a drive instruction to the power output circuit according to the instruction of the data processing circuit, and the output end of the power output circuit is electrically connected with underwater platform equipment; the power conversion circuit adopts a power isolation conversion technology, referring to Figure 2 , comprising two DC-DC isolation power modules K2 and K6 connected with relevant filter circuits to form a double-redundancy output circuit, which converts a direct-current input power +28V into +5V and +5V1, and then directly reduces the +5V voltage to +3.3V through a three-terminal voltage stabilizer K5; the power output circuit comprises solid-state relays K2 and K3, a triode Q4 and an optoelectronic coupler Q5, referring to Figure 7 , the input ends of the solid-state relays K2 and K3 are connected with the direct-current input power +28V through a voltage stabilizing diode, the output ends of the solid-state relays K2 and K3 are electrically connected with underwater platform equipment, the input end of the optoelectronic coupler Q5 is connected with the drive circuit, the output end of the optoelectronic coupler Q5 is connected with the input end of the triode Q4, the output end of the triode Q4 is connected with the control end of the solid-state relay K2, the control end of the solid-state relay K3 is connected with the drive circuit, the power output circuit has two modes of initial state conduction and initial state cutoff, the initial state conduction mode is realized through the triode Q4 and the optoelectronic coupler Q5 of the front-end circuit, and the initial state cutoff mode is realized by the drive instruction n given by the drive circuit to control the solid-state relay K3; referring to Figure 4 , the data processing circuit comprises a single-chip microcomputer K1 and a bus circuit connected with the single-chip microcomputer K1, referring to Figure 5The bus circuit includes a CAN bus circuit and an RS232 bus circuit, the CAN bus circuit is based on a bxCAN controller self-provided by the data processing circuit, cooperates with an external CAN isolation transceiving module T1 to form a CAN bus network, realizes communication with external equipment, and transceives data in real time, and the RS232 bus circuit is composed of an RS232 bus transceiver K8 and related circuits and transmits instructions sent by an upper computer to the data processing circuit.
[0019] The power conversion circuit of the power management system of the underwater platform outputs two 5V voltage, the initial state of the solid state relay in the power output circuit is divided into conduction and cut-off, which is one more choice than the initial state of the commonly used solid state relay which is cut-off, the power output circuit also has an anti-reverse function to protect the power management system from being damaged due to external circuit failure; the bus circuit adopts two communication modes, CAN communication and RS232 communication, and one of the two communication modes can still be used when the other one is damaged. Obviously, the power management system has stronger reliability compared with the prior art, the initial state of the solid state relay can be configured as conduction and cut-off, which is used to complete various logic operations such as signal conduction and inhibition, and more complex circuit functions are realized according to different requirements, two communication modes are compatible for the user to select, the communication reliability of the system is improved, and the power management system has the advantages of strong reliability and high redundancy, and is more suitable for the use requirements of the underwater platform equipment.
Claims
1. An underwater platform power management system, comprising a power conversion circuit, a data processing circuit, a driving circuit and a power output circuit, the power conversion circuit outputs a voltage to maintain the operation of the power management system, the data processing circuit processes and controls signals, the driving circuit sends a driving instruction to the power output circuit according to the instruction of the data processing circuit, and the output end of the power output circuit is electrically connected with underwater platform equipment, characterized in that, The power conversion circuit adopts power isolation conversion technology, and includes two DC-DC isolation power modules K2 and K6 connected with relevant filter circuits to form a double-redundancy output circuit, so as to convert a direct current input power +28V into +5V and +5V1, and then directly reduce the +5V voltage to +3.3V through a three-terminal voltage stabilizer K5.
2. The subsea platform power management system of claim 1, wherein, The power output circuit includes solid-state relays K2 and K3, a triode Q4 and a photoelectric coupler Q5, the input end of the photoelectric coupler Q5 is connected with a driving circuit, the output end of the photoelectric coupler Q5 is connected with the input end of the triode Q4, the output end of the triode Q4 is connected with the driving end of the solid-state relay K2, the driving end of the solid-state relay K3 is connected with the driving circuit, the power output circuit has two modes of initial state conduction and initial state cut-off, the initial state conduction mode is realized through the triode Q4 and the photoelectric coupler Q5 of the front-end circuit, and the initial state cut-off mode is realized by the driving instruction n given by the driving circuit to control the solid-state relay K3.
3. The power management system for an offshore platform of claim 1, wherein, The data processing circuit includes a single-chip microcomputer K1 and a bus circuit connected with the single-chip microcomputer K1, the bus circuit includes a CAN bus circuit and an RS232 bus circuit, the CAN bus circuit is based on a bxCAN controller of the data processing circuit, cooperates with an external CAN isolation transceiver module T1 to form a CAN bus network, realizes communication with external equipment, and realizes real-time data transmission and reception, and the RS232 bus circuit is composed of an RS232 bus transceiver K8 and relevant circuits, and transmits instructions sent by an upper computer to the data processing circuit.