Multi-area distributed power distribution system suitable for restarting

Abstract

The invention discloses a multi-area distributed power distribution system suitable for restarting. The system comprises a power supply and distribution control circuit in an area in a cabin, a power supply and distribution control circuit in an area outside the cabin, and a sun orientation device. Wherein the power supply and distribution control circuit in the cabin area obtains a primary power supply from a system bus, the primary power supply is converted into a cabin secondary power supply, and the cabin secondary power supply supplies power to the second-stage cabin equipment; the second-stage in-cabin equipment obtains instruction voltage from the system bus; the power supply and distribution control circuit in the outboard area obtains a primary power supply from a system bus through the sun orientation device, converts the primary power supply into an outboard secondary power supply, and supplies power to second-stage outboard equipment by the outboard secondary power supply; the power supply and distribution control circuit in the out-cabin area obtains instruction voltage from a system bus through the sun orientation device and provides the instruction voltage to the second-stage in-cabin equipment. The long-term stable operation of the power supply system is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply systems, and in particular relates to a multi-regional distributed power distribution system that is applicable and can be restarted. Background Art

[0002] With the development of aerospace technology and the improvement of requirements for space exploration missions, spacecraft are getting larger and larger, and system functions are becoming more and more complex. As the power supply system of my country's most complex aircraft, the Chinese Space Station should have the ability to decouple the systems from each other when the equipment is powered off for maintenance, equipment is replaced, or functions are expanded. When the equipment replacement operation is separated from the power supply system, the secondary power supply and distribution of the power supply system can still ensure normal operation; when new equipment is installed and the power supply system interface is expanded, the secondary power supply and distribution of the power supply system can still ensure normal operation. In the existing aircraft power supply system, there is no technical method that can meet the ability to ensure the normal operation of the secondary power supply and distribution system when equipment is repaired, replaced, or functions are expanded. Summary of the invention

[0003] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art, to provide a multi-area distributed power distribution system that is suitable for restarting, to solve the technical difficulties of power distribution control management in which the secondary power supply and distribution do not affect each other when power outages, equipment replacement or function expansion occur in the power supply system equipment, and to ensure the long-term stable operation of the power supply system.

[0004] The object of the present invention is achieved through the following technical solutions: a multi-area distributed power distribution system suitable for restarting, comprising: a power supply and distribution control circuit for the cabin area, a power supply and distribution control circuit for the cabin area and a sun-orientation device; wherein the power supply and distribution control circuit for the cabin area is connected to the power supply and distribution control circuit for the cabin area through the sun-orientation device; the power supply and distribution control circuit for the cabin area obtains a primary power supply from a system bus, converts the primary power supply into a cabin secondary power supply, and supplies the cabin secondary power supply to a second-stage cabin of the power supply and distribution control circuit for the cabin area. The equipment inside the cabin is powered; the level 2 cabin equipment of the power supply and distribution control circuit in the cabin area obtains the command voltage from the system bus; the power supply and distribution control circuit in the outer cabin area obtains the primary power from the system bus through the sun-facing device, converts the primary power into an outer cabin secondary power, and uses the outer cabin secondary power to power the level 2 outer cabin equipment of the power supply and distribution control circuit in the outer cabin area; the power supply and distribution control circuit in the outer cabin area obtains the command voltage from the system bus through the sun-facing device, and provides the command voltage to the level 2 cabin equipment of the power supply and distribution control circuit in the outer cabin area.

[0005] In the above-mentioned multi-area distributed power distribution system that can be restarted, the power supply and distribution control circuit of the cabin area includes a bus filter and two-level cabin equipment; wherein, the bus filter obtains primary power from the system bus, converts the primary power into a cabin secondary power, and uses the cabin secondary power to power the two-level cabin equipment; the two-level cabin equipment obtains the command voltage from the system bus.

[0006] In the above-mentioned multi-area distributed power distribution system that can be restarted, the power supply and distribution control circuit of the extravehicular area includes a shunt regulator and a second-level extravehicular equipment; wherein the shunt regulator obtains a primary power supply from the system bus through the sun-facing device, converts the primary power supply into an extravehicular secondary power supply, and supplies the extravehicular secondary power supply to the second-level extravehicular equipment of the power supply and distribution control circuit of the extravehicular area; the shunt regulator obtains a command voltage from the system bus through the sun-facing device, and supplies the command voltage to the second-level extravehicular equipment of the power supply and distribution control circuit of the extravehicular area.

[0007] In the above-mentioned multi-area distributed power distribution system that can be restarted, the level 2 cabin equipment includes charge and discharge regulator a, charge and discharge regulator b, charge and discharge regulator c, charge and discharge regulator d, a cabin drive controller and a power manager.

[0008] In the above-mentioned multi-area distributed power distribution system that can be restarted, the primary power supply is 100V, and the secondary power supplies in the cabin include +5V, ±12V and +28V.

[0009] In the above-mentioned multi-area distributed power distribution system that can be restarted, the in-cabin secondary power supply required by the charge and discharge regulator a is +5V and ±12V; the in-cabin secondary power supply required by the charge and discharge regulator b is +5V and ±12V; the in-cabin secondary power supply required by the charge and discharge regulator c is +5V and ±12V; the in-cabin secondary power supply required by the charge and discharge regulator d is +5V and ±12V; the in-cabin secondary power supply required by the in-cabin drive controller is +5V, ±12V and +28V; the in-cabin secondary power supply required by the power manager is +5V and ±12V.

[0010] In the above-mentioned multi-area distributed power distribution system that can be restarted, the level 2 extravehicular equipment includes an integrated drive controller, an extravehicular drive controller, an extravehicular temperature controller and a too sensitive controller.

[0011] In the above-mentioned restartable multi-area distributed power distribution system, the primary power supply is 100V, and the off-board secondary power supplies include +5V, ±12V and +28V.

[0012] In the above-mentioned multi-area distributed power distribution system that can be restarted, the extravehicular secondary power supply required by the integrated drive controller is +5V, ±12V and +28V; the extravehicular secondary power supply required by the extravehicular drive controller is +5V, ±12V and +28V; the extravehicular secondary power supply required by the extravehicular temperature controller is +5V and ±12V; the extravehicular secondary power supply required by the too sensitive controller is +5V.

[0013] In the above-mentioned multi-area distributed power distribution system that can be restarted, the power supply and distribution control circuit of the extravehicular area also includes: an on-orbit expansion controller; wherein the shunt regulator obtains primary power from the system bus through the solar orientation device, converts the primary power into an extravehicular secondary power, and provides the extravehicular secondary power to the on-orbit expansion controller; the shunt regulator obtains a command voltage from the system bus through the solar orientation device, and provides the command voltage to the on-orbit expansion controller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention reasonably controls the working conditions of the secondary power supply and distribution system of each device in the power supply system, realizes the power-off maintenance, equipment replacement or function expansion capabilities of the secondary power supply and distribution system, and ensures the long-term stable operation of the secondary power supply and distribution system of each device;

[0016] (2) The present invention adopts a decentralized power distribution method, and sets up level 1 equipment to manage the power supply interface between general equipment and the system according to different layout areas; when a single device fails, the level 1 device can be used to disconnect the faulty device from the system, and the system can reduce the spread of faults between devices;

[0017] (3) The present invention connects the level 1 equipment via the busbar. When the busbar maintains a 100V voltage-stabilizing state, the power supply and distribution system of the system can be established here to ensure that the system restarts again;

[0018] (4) The present invention is compatible with newly added expansion devices, thereby enhancing the fault tolerance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0020] Figure 1 It is a control block diagram of a multi-area distributed power distribution system applicable to restarting provided by an embodiment of the present invention;

[0021] Figure 2This is a control block diagram of a power distribution system after adding new equipment provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Figure 1 1 is a control block diagram of a multi-area distributed power distribution system applicable to restarting according to an embodiment of the present invention. Figure 1 As shown, the multi-area distributed power distribution system applicable for restarting includes: a power supply and distribution control circuit in the cabin area, a power supply and distribution control circuit in the outer cabin area, and a sun-directing device.

[0024] The power supply and distribution control circuit of the in-cabin area is connected to the power supply and distribution control circuit of the out-cabin area through the sun orientation device.

[0025] The power supply and distribution control circuit of the in-cabin area obtains primary power from the system bus, converts the primary power into in-cabin secondary power, and uses the in-cabin secondary power to power the level 2 in-cabin equipment of the power supply and distribution control circuit of the in-cabin area; the level 2 in-cabin equipment of the power supply and distribution control circuit of the in-cabin area obtains the command voltage from the system bus.

[0026] The power supply and distribution control circuit of the extravehicular area obtains primary power from the system bus through the sun-facing device, converts the primary power into extravehicular secondary power, and supplies power to the second-level extravehicular equipment of the power supply and distribution control circuit of the extravehicular area with the extravehicular secondary power; the power supply and distribution control circuit of the extravehicular area obtains command voltage from the system bus through the sun-facing device, and supplies the command voltage to the second-level intravehicular equipment of the power supply and distribution control circuit of the extravehicular area.

[0027] The power supply and distribution control circuit of the cabin area includes a bus filter and a second-level cabin device; wherein the bus filter obtains primary power from the system bus, converts the primary power into a cabin secondary power, and supplies power to the second-level cabin device from the cabin secondary power; the second-level cabin device obtains the command voltage from the system bus. Specifically, the primary power is 100V, and the cabin secondary power includes +5V, ±12V and +28V.

[0028] Specifically, the level 2 in-cabin equipment includes a charge and discharge regulator a, a charge and discharge regulator b, a charge and discharge regulator c, a charge and discharge regulator d, an in-cabin drive controller and a power manager.

[0029] The in-cabin secondary power supply required by the charge and discharge regulator a is +5V and ±12V; the in-cabin secondary power supply required by the charge and discharge regulator b is +5V and ±12V; the in-cabin secondary power supply required by the charge and discharge regulator c is +5V and ±12V; the in-cabin secondary power supply required by the charge and discharge regulator d is +5V and ±12V; the in-cabin secondary power supply required by the in-cabin drive controller is +5V, ±12V and +28V; the in-cabin secondary power supply required by the power manager is +5V and ±12V.

[0030] The power supply and distribution control circuit of the extravehicular area includes a shunt regulator and a second-level extravehicular device; wherein the shunt regulator obtains a primary power supply from the system bus through the sun-directed device, converts the primary power supply into an extravehicular secondary power supply, and supplies the extravehicular secondary power supply to the second-level extravehicular device of the power supply and distribution control circuit of the extravehicular area; the shunt regulator obtains a command voltage from the system bus through the sun-directed device, and supplies the command voltage to the second-level in-cabin device of the power supply and distribution control circuit of the extravehicular area. The primary power supply is 100V, and the extravehicular secondary power supply includes +5V, ±12V and +28V.

[0031] Level 2 extravehicular equipment includes an integrated drive controller, an extravehicular drive controller, an extravehicular temperature controller, and a Taimin controller. The extravehicular secondary power supply required by the integrated drive controller is +5V, ±12V, and +28V; the extravehicular secondary power supply required by the extravehicular drive controller is +5V, ±12V, and +28V; the extravehicular secondary power supply required by the extravehicular temperature controller is +5V and ±12V; the extravehicular secondary power supply required by the Taimin controller is +5V.

[0032] like Figure 2 As shown, the power supply and distribution control circuit of the extravehicular area also includes: an on-orbit expansion controller; wherein the shunt regulator obtains primary power from the system bus through the solar orientation device, converts the primary power into an extravehicular secondary power, and provides the extravehicular secondary power to the on-orbit expansion controller; the shunt regulator obtains a command voltage from the system bus through the solar orientation device, and provides the command voltage to the on-orbit expansion controller.

[0033] The system is divided into level 1 equipment and level 2 equipment. According to different layout areas, one device is set as level 1 equipment in one area. The level 1 equipment is responsible for the power supply interface between all level 2 equipment in the area and the system bus.

[0034] Level 1 equipment is the power supply and distribution management equipment within the system. It takes power from the system bus inside the product and directly provides secondary power supply to the product through the conversion circuit. The command bus within the system is uniformly provided by the level 1 equipment.

[0035] Level 2 equipment is other general working equipment in the system. According to the needs inside the product, it takes power from the system bus and uses conversion circuits such as "100V / +5V", "100V / ±12V" and "100V / +28V" to provide secondary power supply inside the product.

[0036] The system can meet the task of restarting after the system bus is powered off. The level 1 equipment is set to directly draw power from the power supply bus, and a 100V regulated input is provided through the regulated power supply interface to ensure the power supply bus voltage. A 28V command bus is formed through the conversion circuit in the level 1 equipment, and then uniformly distributed to each device in the system to ensure that each device can start the device power supply path through the 28V command bus and restore the system bus power supply. After the system bus power supply is restored, the 100V regulated input provided by the regulated power supply interface can be disconnected.

[0037] All new devices added to the system are Level 2 devices. The system reserves the power supply interface and 28V command interface of the system bus for the subsequent new devices. After the new devices are installed, they are connected to the system through cables and the reserved interfaces of the system. Finally, the power supply switch is controlled to close inside the Level 1 device, so that the new devices can be connected to the system bus for power supply.

[0038] (1) Power supply and distribution control circuit

[0039] The power supply and distribution control circuit of the system consists of two relatively independent and dispersed parts: the in-cabin area and the out-cabin area.

[0040] The power supply and distribution control circuit in the cabin area consists of a bus filter, charge and discharge regulators a~d, a cabin drive controller and a power manager.

[0041] The bus filter is a Class 1 device that draws power from the 100V power supply bus. The product uses a secondary power distribution method through a "100V / +28V" conversion circuit inside the product to provide power to the command relay coils of all equipment in the power supply system, with an output capacity of no less than 1A; and provides the remaining Class 2 products with a 100V power supply bus access through a secondary power distribution method.

[0042] The bus filter is also equipped with a 100V voltage-stabilized power supply interface for receiving 100V input from an external circuit. The voltage-stabilized power supply interface is equipped with an isolation relay. The voltage-stabilized power supply relay wire package in the single machine is powered by the 28V command bus of the external circuit.

[0043] The charge and discharge regulators a~d, the cabin drive controller and the power manager are Level 2 devices. They take power from the primary bus as required inside the product and use secondary power distribution through conversion circuits to provide their own working needs.

[0044] The power supply and distribution control circuit of the extravehicular area is composed of a shunt regulator, an integrated drive controller, an extravehicular drive controller, an extravehicular temperature controller and a Taimin controller.

[0045] The shunt regulator is a Class 1 device that draws power from the 100V power supply bus. The product uses a secondary power distribution method through the "100V / +5V" and "100V / ±12V" conversion circuits to meet its own working needs; and the 100V power supply bus access for the remaining Class 2 products is provided through the secondary power distribution method.

[0046] Taking into account the need for command bus management of all equipment in the power system, and optimizing the number of slip rings between the extravehicular equipment and the solar orientation device between the extravehicular areas, the 28V command bus of all extravehicular equipment is transferred inside the shunt regulator.

[0047] The integrated drive controller, extravehicular drive controller, extravehicular temperature controller and Taimin controller are Level 2 devices. According to the needs inside the product, they take power from the primary bus and use secondary power distribution through the conversion circuit to provide their own working needs.

[0048] (2) Voltage stabilizing starting circuit

[0049] The system can meet the task of restarting after the system bus is powered off. After the 100V power supply bus is powered off, the system will disconnect all power switches to ensure safety, and the bus voltage will be 0V.

[0050] When the system needs to be restarted, the external circuit inputs 100V through the bus filter voltage stabilization power supply interface.

[0051] When the external 28V command bus controls the voltage-stabilized power supply relay package to close the power supply switch, the voltage-stabilized power supply interface inputs 100V to maintain the system power supply bus voltage boosted to 100V.

[0052] The bus filter forms a 28V command bus through the "100V / 28V" conversion circuit, which is uniformly distributed to the charge and discharge regulators a~d, the cabin drive controller and the power manager cabin level 2 equipment, and at the same time transmitted to the shunt regulator of the level 1 equipment in the outer cabin area through the sun-directed device, and then transferred by the shunt regulator to the integrated drive controller, the outer cabin drive controller, the outer cabin temperature controller and the Taimin controller outer cabin level 2 equipment. Ensure that each device can start the device power supply path through the 28V command bus and restore the system bus power supply.

[0053] After the system bus power supply is restored, the external 100V regulated voltage input provided by the regulated power supply interface can be disconnected.

[0054] (3) New equipment

[0055] The on-orbit expansion controller is a new device added to the system, so it is a level 2 device. The shunt regulator in the extravehicular area reserves the power supply interface and command bus interface for the subsequent new equipment.

[0056] After installation, the on-orbit expansion controller is connected to the power supply interface and command bus interface reserved by the shunt regulator through a cable. The shunt regulator controls the reserved power supply path switch to close, so that the on-orbit expansion controller is connected to the system bus for power supply.

[0057] This embodiment reasonably controls the working conditions of the secondary power supply and distribution system of each device in the power supply system, realizes the ability of the secondary power supply and distribution system to be powered off for maintenance, equipment replacement or function expansion, and ensures the long-term stable operation of the secondary power supply and distribution system of each device; this embodiment adopts a decentralized power distribution method, and sets up level 1 equipment to manage the power supply interface between general equipment and the system according to different layout areas; when a single device fails, the faulty device can be disconnected from the system through the level 1 device, and the system can reduce the spread of faults between devices; this embodiment connects the level 1 equipment through the bus, and when the bus maintains a 100V voltage-stabilizing state, the system's power supply and distribution system can be established here to ensure that the system is restarted again; this embodiment is compatible with newly added expansion equipment and enhances the fault tolerance of the system.

[0058] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A multi-area distributed power distribution system suitable for restarting, characterized in that include: The power supply and distribution control circuit in the cabin area, the power supply and distribution control circuit in the outer cabin area and the sun orientation device; among which, The power supply and distribution control circuit of the cabin area is connected to the power supply and distribution control circuit of the outer cabin area through the sun orientation device; The power supply and distribution control circuit in the cabin area obtains primary power from the system bus, converts the primary power into a secondary power supply in the cabin, and uses the secondary power supply in the cabin to supply power to the level 2 cabin equipment of the power supply and distribution control circuit in the cabin area; The second-level cabin equipment of the power supply and distribution control circuit in the cabin area obtains the command voltage from the system bus; The power supply and distribution control circuit of the extravehicular area obtains primary power from the system bus through the sun-directing device, converts the primary power into extravehicular secondary power, and uses the extravehicular secondary power to supply power to the second-level extravehicular equipment of the power supply and distribution control circuit of the extravehicular area; The power supply and distribution control circuit of the outer area obtains a command voltage from the system bus through the solar orientation device, and provides the command voltage to the second-level cabin equipment of the power supply and distribution control circuit of the outer area.

2. The restartable multi-area distributed power distribution system according to claim 1, characterized in that: The power supply and distribution control circuit of the cabin area includes a bus filter and two-level cabin equipment; wherein, The bus filter obtains primary power from the system bus, converts the primary power into a secondary power in the cabin, and uses the secondary power in the cabin to supply power to the level 2 cabin equipment; The level 2 cabin equipment obtains a command voltage from the system bus.

3. The restartable multi-area distributed power distribution system according to claim 1, characterized in that: The power supply and distribution control circuit of the extravehicular area includes a shunt regulator and a second-level extravehicular device; wherein, The shunt regulator obtains primary power from the system bus through the solar orientation device, converts the primary power into an off-board secondary power, and uses the off-board secondary power to supply power to the second-level off-board equipment of the power supply and distribution control circuit in the off-board area; The shunt regulator obtains a command voltage from the system bus through the solar orientation device, and provides the command voltage to the second-level cabin equipment of the power supply and distribution control circuit in the outer cabin area.

4. The restartable multi-area distributed power distribution system according to claim 2, characterized in that: The level 2 in-cabin equipment includes a charge and discharge regulator a, a charge and discharge regulator b, a charge and discharge regulator c, a charge and discharge regulator d, an in-cabin drive controller and a power manager.

5. The restartable multi-area distributed power distribution system according to claim 4, characterized in that: The primary power supply is 100V, and the secondary power supplies in the cabin include +5V, ±12V and +28V.

6. The restartable multi-area distributed power distribution system according to claim 5, characterized in that: The secondary power supply required by the charge and discharge regulator a is +5V and ±12V; The secondary power supply required by the charge and discharge regulator b is +5V and ±12V; The secondary power supply required by the charge and discharge regulator c is +5V and ±12V; The secondary power supply required by the charge and discharge regulator d is +5V and ±12V; The in-cabin secondary power supplies required by the in-cabin drive controller are +5V, ±12V and +28V; The secondary power supplies required by the power manager are +5V and ±12V.

7. The restartable multi-area distributed power distribution system according to claim 3, characterized in that: The second-level extravehicular equipment includes an integrated drive controller, an extravehicular drive controller, an extravehicular temperature controller and a temperature sensitive controller.

8. The restartable multi-area distributed power distribution system according to claim 7, characterized in that: The primary power supply is 100V, and the secondary power supplies outside the cabin include +5V, ±12V and +28V.

9. The restartable multi-area distributed power distribution system according to claim 8, characterized in that: The off-board secondary power supplies required by the integrated drive controller are +5V, ±12V and +28V; The extravehicular secondary power supplies required by the extravehicular drive controller are +5V, ±12V and +28V; The extravehicular secondary power supply required by the extravehicular temperature controller is +5V and ±12V; The secondary power supply outside the cabin required by the Taimin controller is +5V.

10. The restartable multi-area distributed power distribution system according to claim 3, characterized in that: The power supply and distribution control circuit of the extravehicular area further includes: an on-orbit expansion controller; wherein, The shunt regulator obtains primary power from the system bus through the solar orientation device, converts the primary power into an off-board secondary power, and supplies the off-board secondary power to the on-orbit expansion controller; The shunt regulator obtains a command voltage from the system bus through the solar orientation device, and provides the command voltage to the on-orbit expansion controller.

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