Integrated intelligent power supply and distribution system

Abstract

The invention provides an integrated intelligent power supply and distribution system which comprises a power supply part and a power distribution part, the power supply part comprises six power supply modules, and the power distribution part comprises a power output part, six control modules and a monitoring module. A circuit in the system adopts a dual-redundancy backup form, so that the power supply reliability of the system is ensured. And all the components adopt domestic devices, are autonomous, controllable, miniaturized and integrated, can receive multi-path power supply input, have hardware interfaces and network redundancy control, and are strong in functionality and stable and reliable in performance.

Description

Technical Field

[0001] The present invention belongs to the electrical field, and specifically relates to a domestic integrated intelligent power supply and distribution system. Background Art

[0002] In the current international competition landscape, the autonomous controllability of products is particularly important, and the autonomous controllability of technology can make products sufficiently competitive. In the national key model large system, its power supply and distribution system plays a very important role. The reliability and safety of the power supply and distribution system directly determine the success or failure of the large system mission, so the reliability of the power supply and distribution system must be guaranteed. In actual applications, power supply and distribution are increasingly tending towards localization, integrated and intelligent development.

[0003] In order to realize independent, controllable and reliable power supply equipment and ensure the success of national key model tasks, a domestically produced integrated intelligent power supply and distribution system equipment is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide an easy-to-implement, effective, autonomous and controllable domestic integrated intelligent power supply and distribution system, which is used to realize domestic autonomous controllable, integrated miniaturized and intelligent power supply and distribution, and has good autonomy, applicability and reliability. The circuit in the system adopts a dual redundant backup form to ensure the reliability of the system power supply.

[0005] The present invention provides an integrated intelligent power supply and distribution system, which comprises a power supply part and a power distribution part, wherein the power supply part is a power supply combination, and the power distribution part comprises a power output part, a control module and a monitoring module.

[0006] The power supply combination consists of 6 identical power modules, which are connected in parallel in pairs to redundantly power the system. Each power module automatically identifies the IP address setting according to the key position, communicates with the intelligent power distribution, and converts 380V AC power into an adjustable DC voltage of 24 to 40V.

[0007] The power output part includes a diode, an output contactor, and a shunt. The function of the diodes V1-V6 is to connect the two power modules of the power supply combination in parallel for redundancy; the output contactors K1-K6 are combined in pairs, and two identical contactors are used for parallel redundancy. The on and off of the contactors are controlled by the control module, and the contactors supply power to the back-end equipment. The shunt collects the output current and sends it to the control module circuit for processing. The current signal of the shunt RS1 is sent to the control modules 1 and 2; the current signal of the shunt RS2 is sent to the control modules 3 and 4; the current signal of the shunt RS3 is sent to the control modules 5 and 6.

[0008] The control module receives the system hardware interface control signal and the digital communication unit command to control the power module startup, DC output start / stop and control the output contactor on and off. The power startup is realized through the internal circuit logic interlock. When the power fails and a protection fault occurs, the power module will upload the fault signal GZ to the control module, and the GZ signal will unlock and power off the startup power module signal.

[0009] The control module includes a sampling circuit. The output voltage and current signals of the power module are adjusted by the precision amplifier OP07, and the output voltage 0-60V is adjusted to a voltage signal Vf of 0-4V; the current signal collected by the shunt is converted into a voltage signal If of 0-100A corresponding to 0-10V. The voltage signal Vf and the current signal If are sent to the digital communication unit in the monitoring module through linear optocoupler isolation, converted into digital signals by the digital communication unit, and then uploaded to the back-end system computer for display.

[0010] Furthermore, control module 1 and control module 2 are used to control power module 1 and power module 2; control module 3 and control module 4 are used to control power module 3 and power module 4; control module 5 and control module 6 are used to control power module 5 and power module 6.

[0011] The monitoring module includes two sets of identical circuits, each of which includes an auxiliary power supply and a digital communication circuit. The auxiliary power supply uses the domestically produced device MV300A36M500BLG, which outputs 28V, and the PAD15-24S5EM outputs 1 channel of 5V. The 28V provides power for the power output part, the control module, the digital communication unit, and the output interface. The 5V is used to power the digital communication unit.

[0012] The digital communication unit is designed based on the 32-bit ARM processor developed and produced by the 58th Institute. The chip integrates the CortexM4 ARM core, integrated Ethernet MAC network controller, ADC, DAC and other resources, and can provide a 100-pin interface. The network PHY interface chip is designed using Shenzhen Guowei's SM83848, which can meet the adaptive mode of the 10M / 100M network interface. It communicates with 6 DC power supplies through the RS485 communication bus to achieve voltage and current sampling of the 6 DC power supplies, input abnormality, overvoltage, overcurrent status collection, power supply output voltage setting, etc.

[0013] The digital communication unit can control the control module by collecting the working status information in the control module, and can also control the AC input startup, DC output startup, system power supply control, etc. of the power module. The digital communication circuit communicates with the system computer through two network ports. The two network interfaces are independent of each other and can be configured with two IP addresses respectively, which can be responsible for the data query function of the system at the same time.

[0014] In the intelligent power distribution, network port 1 and network port 2 back up each other and are assigned different IP addresses. They are respectively connected to the two digital communication units in the monitoring module. They can control the on and off of the three-way output of the power supply with the six control modules respectively, and can also communicate with the six power modules to collect the working status of the power modules.

[0015] The beneficial effects of the present invention are as follows:

[0016] The intelligent power supply and distribution system of the present invention is domestically produced, integrated and intelligent, with clear system relationships, clear timing logic, stable and reliable circuit dual redundancy performance, and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention:

[0018] Figure 1 It is a circuit diagram of a domestic integrated intelligent power supply and distribution system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0020] This embodiment provides an integrated intelligent power supply and distribution system, which uses domestic components to design the power supply and distribution system, and has a modular design, including a power supply part and a distribution part. The power supply part is a power supply combination, and the distribution part includes a power output part, 6 identical control modules and a monitoring module.

[0021] The power supply combination consists of 6 identical 100A DC power modules, which are connected in parallel in pairs to provide redundant power for the system. Each power module automatically identifies the IP address setting according to the key position, communicates with the monitoring module, and converts the 380V AC power into an adjustable DC voltage of 24-40V. The domestically produced full-bridge phase-shifted power management chip SW1875MD is used, the power switch tube HRQM50N80BT is selected, and the output rectifier diode WGDF2×100B4060FJ is selected to realize the soft switching technology of zero voltage opening and zero current closing of the power switch tube, thereby improving the power supply efficiency.

[0022] The power output part includes a diode, an output contactor, and a shunt. The function of the diodes V1-V6 is to connect the two power modules of the power supply combination in parallel for redundancy; the output contactors K1-K6 are combined in pairs, and two identical contactors are used for parallel redundancy. The on and off of the contactors are controlled by the control module, and the contactors supply power to the back-end equipment. The shunt collects the output current and sends it to the control module circuit for processing. The current signal of the shunt RS1 is sent to the control modules 1 and 2; the current signal of the shunt RS2 is sent to the control modules 3 and 4; the current signal of the shunt RS3 is sent to the control modules 5 and 6.

[0023] The six control modules are redundant with each other, and receive the system hardware interface control signal and the digital communication unit command to control the startup of a group of backup power modules, the start / stop of DC output, and the on / off of the control output contactor. A power start interlock circuit is designed inside the control module. When a power module in each group of power fails and a protection fault occurs, the fault signal GZ of the power module will be uploaded to the corresponding control module, and the GZ signal will unlock the start power module signal to cut off the power.

[0024] The control module includes a sampling circuit. The output voltage and current signals of the power module are adjusted by the precision amplifier OP07, and the output voltage 0-60V is adjusted to a voltage signal Vf of 0-4V; the current signal collected by the shunt is converted into a voltage signal If of 0-100A corresponding to 0-10V. The voltage signal Vf and the current signal If are sent to the digital communication unit in the monitoring module through linear optocoupler isolation, converted into digital signals by the digital communication unit, and then uploaded to the back-end system computer for display.

[0025] Furthermore, control module 1 and control module 2 are used to control power module 1 and power module 2; control module 3 and control module 4 are used to control power module 3 and power module 4; control module 5 and control module 6 are used to control power module 5 and power module 6.

[0026] The monitoring module includes two sets of identical circuits, each of which includes an auxiliary power supply and a digital communication circuit. The auxiliary power supply uses the domestically produced device MV300A36M500BLG, which outputs 28V, and the PAD15-24S5EM outputs 1 channel of 5V. The 28V provides power for the power output part, the control module, the digital communication unit, and the output interface. The 5V is used to power the digital communication unit.

[0027] The digital communication unit is designed based on the 32-bit ARM processor developed and produced by the 58th Institute. The chip integrates the CortexM4 ARM core, integrated Ethernet MAC network controller, ADC, DAC and other resources, and can provide a 100-pin interface. The network PHY interface chip is designed using Shenzhen Guowei's SM83848, which can meet the adaptive mode of the 10M / 100M network interface. It communicates with 6 DC power supplies through the RS485 communication bus to achieve voltage and current sampling of the 6 DC power supplies, input abnormality, overvoltage, overcurrent status collection, power supply output voltage setting, etc.

[0028] The digital communication unit can control the control module by collecting the working status information in the control module, and can also control the AC input startup, DC output startup, system power supply control, etc. of the power module. The digital communication circuit communicates with the system computer through two network ports. The two network interfaces are independent of each other and can be configured with two IP addresses respectively, which can be responsible for the data query function of the system at the same time.

[0029] In the intelligent power distribution, network port 1 and network port 2 back up each other and are assigned different IP addresses. They are respectively connected to the two digital communication units in the monitoring module. They can control the on and off of the three-way output of the power supply with the six control modules respectively, and can also communicate with the six power modules to collect the working status of the power modules.

[0030] Furthermore, the power module and the control module support hot swapping and can be maintained online.

[0031] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated intelligent power supply and distribution system, characterized in that: The system includes a power supply part and a power distribution part, wherein the power supply part is a power supply combination, and the power distribution part includes a power output part, a control module and a monitoring module; wherein, The power supply combination is composed of 6 identical power supply modules, which are connected in parallel in pairs and divided into 3 groups for redundancy to supply power to the system; The power output part includes 6 diodes, 6 output contactors, and 3 shunts; the 6 diodes correspond to the power modules one by one; the output contactors K1-K6 are combined in pairs, and two identical contactors are used for parallel redundancy. The output contactors supply power to the back-end equipment, and the shunts collect the output current and send it to the control module. Every two combined power modules correspond to one shunt; The monitoring module includes an auxiliary power supply and a digital communication unit; The control module receives the system hardware interface control signal and the digital communication unit instruction to control the power supply module to start up, start / stop the DC output, and control the on / off of the output contactor.

2. The integrated intelligent power supply and distribution system according to claim 1, characterized in that: Each power module automatically identifies the IP address setting according to the key position and can communicate with the monitoring module.

3. The integrated intelligent power supply and distribution system according to claim 1, characterized in that: The voltage and current signals are sent to the digital communication unit through linear optocoupler isolation, converted into digital signals by the digital communication unit and uploaded to the back-end system computer for display.

4. The integrated intelligent power supply and distribution system according to claim 1, characterized in that: The monitoring module includes two sets of identical circuits, each of which includes an auxiliary power supply and a digital communication circuit.

5. The integrated intelligent power supply and distribution system according to claim 4, characterized in that: The auxiliary power supply adopts the domestically produced device MV300A36M500BLG, which outputs 28V, and the device PAD15-24S5EM, which outputs 5V.

6. The integrated intelligent power supply and distribution system according to claim 4, characterized in that: The digital communication unit can control the control module by collecting the working status information in the control module, and can also control the AC input startup, DC output startup and system power supply control of the power module.

7. The integrated intelligent power supply and distribution system according to claim 6, characterized in that: The digital communication unit has two network ports for independent communication.

8. An integrated intelligent power supply and distribution system according to any one of claims 1 to 7, characterized in that: The system includes 6 identical control modules, and every two control modules are mutually redundant and control the power supply modules respectively.

9. The integrated intelligent power supply and distribution system according to claim 8, characterized in that: The control module is internally designed with a power supply start-up interlock circuit. When a power supply module fails, a fault signal GZ of the power supply module will be uploaded to the corresponding control module to cut off the power supply module.

10. An integrated intelligent power supply and distribution system according to any one of claims 1 to 9, characterized in that: The power module adopts the full-bridge phase-shifted power management chip SW1875MD.

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