A multi-zone distributed power distribution system suitable for restartability

Abstract

The application discloses a kind of suitable for multiple area distributed power distribution system of restart, comprising: cabin area power supply and distribution control circuit, cabin area power supply and distribution control circuit and to the orientation device of day;Wherein, the cabin area power supply and distribution control circuit obtains primary power supply from system bus, converts primary power supply into cabin secondary power supply, and cabin secondary power supply is powered to 2 stage cabin equipment;2 stage cabin equipment obtains command voltage from system bus;The cabin area power supply and distribution control circuit obtains primary power supply from system bus by the orientation device to day, converts primary power supply into cabin secondary power supply, and cabin secondary power supply is powered to 2 stage cabin equipment;The cabin area power supply and distribution control circuit obtains command voltage from system bus by the orientation device to day, and command voltage is provided to 2 stage cabin equipment.The application guarantees long-term stable operation of power supply system.

Description

Technical Field

[0001] This invention belongs to the field of power supply system technology, and in particular relates to a multi-area distributed power distribution system that can be restarted. Background Technology

[0002] With the development of aerospace technology and the increasing demands on space exploration missions, spacecraft are becoming larger and their system functions more complex. As the power supply system of my country's most complex spacecraft, the Chinese Space Station must possess the ability to decouple its systems during equipment maintenance, replacement, or functional expansion. When equipment replacement is separated from the power supply system, the secondary power supply and distribution system must still function normally; similarly, when new equipment is installed and the power supply system is expanded, the secondary power supply and distribution system must still function normally. Currently, no existing spacecraft power supply system possesses the capability to ensure the normal operation of the secondary power supply and distribution system during equipment maintenance, replacement, or functional expansion. Summary of the Invention

[0003] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide a multi-regional distributed power distribution system that can be restarted. This solves the technical difficulty of power distribution control and management in which secondary power supply and distribution do not affect each other when there is a power outage for maintenance, equipment replacement or functional expansion in the power supply system equipment, and ensures the long-term stable operation of the power supply system.

[0004] The objective of this invention is achieved through the following technical solution: a re-startable multi-area distributed power distribution system, comprising: a power supply and distribution control circuit for the interior area, a power supply and distribution control circuit for the exterior area, and a sun-oriented device; wherein, the power supply and distribution control circuit for the interior area is connected to the power supply and distribution control circuit for the exterior area via the sun-oriented device; the power supply and distribution control circuit for the interior area receives primary power from the system bus, converts the primary power into secondary power within the interior, and supplies the secondary power to the second-level compartment of the power supply and distribution control circuit for the interior area. The internal equipment is powered; the second-level internal equipment of the power supply and distribution control circuit in the internal area receives command voltage from the system bus; the power supply and distribution control circuit in the external area receives primary power from the system bus through the sun-oriented device, converts the primary power into external secondary power, and supplies the external secondary power to the second-level external equipment of the power supply and distribution control circuit in the external area; the power supply and distribution control circuit in the external area receives command voltage from the system bus through the sun-oriented device, and supplies the command voltage to the second-level internal equipment of the power supply and distribution control circuit in the external area.

[0005] In the aforementioned applicable multi-area distributed power distribution system that can be restarted, the power supply and distribution control circuit of the compartment area includes a bus filter and level 2 compartment equipment; wherein, the bus filter receives primary power from the system bus, converts the primary power into secondary power in the compartment, and supplies power to the level 2 compartment equipment; the level 2 compartment equipment receives command voltage from the system bus.

[0006] In the aforementioned applicable multi-area distributed power distribution system that can be restarted, the power supply and distribution control circuit of the external area includes a shunt regulator and secondary external equipment. The shunt regulator receives primary power from the system bus via the sun-aligning device, converts the primary power into secondary external power, and supplies the secondary external power to the secondary external equipment of the power supply and distribution control circuit in the external area. The shunt regulator also receives command voltage from the system bus via the sun-aligning device and supplies the command voltage to the secondary internal equipment of the power supply and distribution control circuit in the external area.

[0007] In the above-mentioned re-startable multi-area distributed power distribution system, the Level 2 in-cabin equipment includes charge / discharge regulator a, charge / discharge regulator b, charge / discharge regulator c, charge / discharge regulator d, in-cabin drive controller, and power manager.

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

[0009] In the aforementioned re-startable multi-area distributed power distribution system, the secondary power supply required by the charge / discharge regulator a is +5V and ±12V; the secondary power supply required by the charge / discharge regulator b is +5V and ±12V; the secondary power supply required by the charge / discharge regulator c is +5V and ±12V; the secondary power supply required by the charge / discharge regulator d is +5V and ±12V; the secondary power supply required by the in-cabin drive controller is +5V, ±12V, and +28V; and the secondary power supply required by the power manager is +5V and ±12V.

[0010] In the aforementioned applicable multi-area distributed power distribution system that can be restarted, the Level 2 external equipment includes an integrated drive controller, an external drive controller, an external temperature controller, and a sensitive controller.

[0011] In the above-mentioned re-startable multi-area distributed power distribution system, the primary power supply is 100V, and the external secondary power supply includes +5V, ±12V and +28V.

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

[0013] In the aforementioned applicable multi-area distributed power distribution system that can be restarted, the power supply and distribution control circuit of the external area further includes: an on-orbit extension controller; wherein, the shunt regulator obtains primary power from the system bus through the sun-oriented device, converts the primary power into external secondary power, and supplies the external secondary power to the on-orbit extension controller; the shunt regulator obtains command voltage from the system bus through the sun-oriented device and provides the command voltage to the on-orbit extension controller.

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

[0015] (1) This invention reasonably controls the operation of the secondary power supply and distribution system of each equipment in the power supply system, realizes the power outage maintenance, equipment replacement or functional expansion 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 equipment.

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

[0017] (3) The present invention connects the first-level equipment through the bus. When the bus maintains a 100V stable voltage state, the power supply and distribution system of the system can be established here to ensure the system restarts.

[0018] (4) The present invention is compatible with newly added expansion devices and enhances the fault tolerance of the system. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0020] Figure 1 This is a control block diagram of a re-startable multi-area distributed power distribution system provided in an embodiment of the present invention.

[0021] Figure 2This is a control block diagram of the power distribution system after adding new equipment, provided in an embodiment of the present invention. Detailed Implementation

[0022] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a control block diagram of a re-startable multi-area distributed power distribution system provided in an embodiment of the present invention. Figure 1 As shown, the applicable re-startable multi-area distributed power distribution system includes: power supply and distribution control circuits for the interior area, power supply and distribution control circuits for the exterior area, and a sun-oriented device. Among them,

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

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

[0026] The power supply and distribution control circuit of the external area receives primary power from the system bus through the sun-oriented device, converts the primary power into external secondary power, and supplies power to the second-level external equipment of the power supply and distribution control circuit of the external area; the power supply and distribution control circuit of the external area receives command voltage from the system bus through the sun-oriented device, and supplies the command voltage to the second-level internal equipment of the power supply and distribution control circuit of the external area.

[0027] The power supply and distribution control circuit for the cabin area includes a bus filter and level 2 cabin equipment. The bus filter receives primary power from the system bus, converts it into secondary power for the cabin, and supplies the level 2 cabin equipment with power. The level 2 cabin equipment receives command voltage from the system bus. Specifically, the primary power supply is 100V, and the secondary power supply includes +5V, ±12V, and +28V.

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

[0029] The charge / discharge regulator a requires +5V and ±12V for its internal secondary power supply; the charge / discharge regulator b requires +5V and ±12V for its internal secondary power supply; the charge / discharge regulator c requires +5V and ±12V for its internal secondary power supply; the charge / discharge regulator d requires +5V and ±12V for its internal secondary power supply; the internal drive controller requires +5V, ±12V, and +28V for its internal secondary power supply; and the power manager requires +5V and ±12V for its internal secondary power supply.

[0030] The power supply and distribution control circuit for the external area includes a shunt regulator and two levels of external equipment. The shunt regulator receives primary power from the system bus via the sun-aligning device, converts it into secondary external power, and supplies this secondary power to the two levels of external equipment in the power supply and distribution control circuit. The shunt regulator also receives command voltage from the system bus via the sun-aligning device and supplies this command voltage to the two levels of internal equipment in the power supply and distribution control circuit. The primary power supply is 100V, and the secondary external power supply includes +5V, ±12V, and +28V.

[0031] The Level 2 external equipment includes an integrated drive controller, an external drive controller, an external temperature controller, and a thermocouple controller. The integrated drive controller requires +5V, ±12V, and +28V external secondary power supplies; the external drive controller requires +5V, ±12V, and +28V external secondary power supplies; the external temperature controller requires +5V and ±12V external secondary power supplies; and the thermocouple controller requires +5V external secondary power supplies.

[0032] like Figure 2 As shown, the power supply and distribution control circuit in the external area also includes: an on-orbit extension controller; wherein, the shunt regulator obtains primary power from the system bus through the sun-orienting device, converts the primary power into external secondary power, and supplies the external secondary power to the on-orbit extension controller; the shunt regulator obtains command voltage from the system bus through the sun-orienting device and supplies the command voltage to the on-orbit extension controller.

[0033] The system is equipped with both Level 1 and Level 2 devices. Depending on the layout area, one Level 1 device is installed within each area, responsible for the power supply interface between all Level 2 devices and the system bus in that area.

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

[0035] Level 2 equipment consists of other general-purpose equipment within the system. Power is drawn from the system bus and supplied internally via conversion circuits for "100V / +5V", "100V / ±12V", and "100V / +28V" as needed.

[0036] This system can restart the system after a power outage on the mains bus. Level 1 devices draw power directly from the mains bus, receiving a 100V regulated input via a voltage regulator interface to ensure the mains bus voltage is maintained. The level 1 devices then use internal conversion circuits to create a 28V command bus, which is then distributed to each device in the system. This ensures that each device can start its power supply via the 28V command bus, restoring power to the mains bus. Once the mains bus power is restored, the 100V regulated input from the voltage regulator interface can be disconnected.

[0037] All newly added equipment in the system is Level 2 equipment. The system reserves power supply interfaces for the system bus and a 28V command interface for subsequent additions of equipment. After installation, the new equipment is connected to the system via cables to the reserved interfaces. Finally, the power supply switch inside the Level 1 equipment is closed to connect the new equipment 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 decentralized parts: the internal area and the external area.

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

[0041] The bus filter is a Class 1 device, drawing power from the 100V power supply bus. Internally, the product uses a "100V / +28V" conversion circuit to provide power to the command relay coils of all equipment in the power supply system through a secondary power distribution method, with an output capacity of not less than 1A. It also provides the 100V power supply bus path for the other Class 2 products through a secondary power distribution method.

[0042] The bus filter is also equipped with a 100V regulated power supply interface to receive 100V input from external circuits. The regulated power supply interface is equipped with an isolation relay. The power supply coil of the regulated power supply relay in the single unit is powered by the 28V command bus of the external circuit.

[0043] The charge / discharge regulators a to d, the in-cabin drive controller, and the power manager are level 2 devices. They draw power from the primary bus according to their needs inside the product and use secondary power distribution through conversion circuits to provide their own working requirements.

[0044] The power supply and distribution control circuit for the external area consists of a shunt regulator, an integrated drive controller, an external drive controller, an external temperature controller, and a sensitive controller.

[0045] The shunt regulator is a Class 1 device, drawing power from the 100V power supply bus. Internally, it uses a secondary power distribution method through "100V / +5V" and "100V / ±12V" conversion circuits to provide its own operating needs; and it also provides the 100V power supply bus path for the other Class 2 products through the secondary power distribution method.

[0046] Considering the need for all equipment in the power system to manage the command bus, and optimizing the number of slip rings for the solar orientation devices in the outer area and between the outer areas, the 28V command bus of all outer equipment is transferred inside the shunt regulator.

[0047] The integrated drive controller, external drive controller, external temperature controller, and Taimin controller are all Level 2 devices. Inside the product, they draw power from the primary bus according to their needs and use a secondary power distribution method through conversion circuits to provide their own working requirements.

[0048] (2) Regulated start-up circuit

[0049] This system can restart after a power outage on the system bus. To ensure safety, the system will disconnect all power switches after a 100V power bus outage, resulting in a bus voltage of 0V.

[0050] When the system needs to restart, the external circuit receives 100V through the bus filter's regulated power supply interface.

[0051] When the external 28V command bus controls the regulated power supply relay coil to close the power supply switch, the regulated power supply interface inputs 100V to maintain the system power supply bus voltage at 100V.

[0052] The bus filter generates a 28V command bus via a 100V / 28V conversion circuit, which is then uniformly distributed to the charge / discharge regulators (a-d), the in-cabin drive controller, and the power manager (cabin level 2 equipment). Simultaneously, it transmits power through the solar orientation device to the external area level 1 equipment shunt regulator, which then relays the power to the integrated drive controller, external drive controller, external temperature controller, and the solar sensor (level 2 equipment). This ensures that each piece of equipment can be powered up via the 28V command bus, restoring the system bus power supply.

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

[0054] (3) New equipment

[0055] The on-orbit extension controller is a subsequent addition to the system, therefore it is a Level 2 device. The shunt regulator in the external area provides power supply and command bus interfaces for future additions.

[0056] After installation, the on-orbit extension controller is connected to the reserved power supply interface and command bus interface of the shunt regulator via cables. The shunt regulator internally controls the closure of the reserved power supply path switch, enabling the on-orbit extension controller to connect to the system bus power supply.

[0057] This embodiment rationally controls the operation of the secondary power supply and distribution systems of each device within the power supply system, enabling power outage maintenance, equipment replacement, or functional expansion of the secondary power supply and distribution systems, ensuring long-term stable operation of each device's secondary power supply and distribution system. This embodiment adopts a distributed power distribution method, setting up Level 1 equipment to manage the power supply interfaces between general equipment and the system according to different layout areas. In the event of a single device failure, the faulty device can be disconnected from the system through Level 1 equipment, reducing the spread of faults between devices. This embodiment connects Level 1 equipment via a busbar; when the busbar maintains a 100V stable voltage state, the system's power supply and distribution system can be established there, ensuring system restart. This embodiment is compatible with newly added and expanded equipment, enhancing the system's fault tolerance.

[0058] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A re-startable multi-area distributed power distribution system, characterized in that... include: The power supply and control circuits for the interior area, the power supply and control circuits for the exterior area, and the sun-oriented 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 area through the sun-oriented device; The power supply and distribution control circuit of the cabin area receives primary power from the system bus, converts the primary power into cabin secondary power, and supplies power to the second-level cabin equipment of the power supply and distribution control circuit of the cabin area. The Level 2 in-cabin equipment of the power supply and distribution control circuit in the in-cabin area receives command voltage from the system bus. The power supply and distribution control circuit for the external area includes a shunt regulator and Level 2 external equipment; wherein... The shunt regulator receives primary power from the system bus via the sun-oriented device, converts the primary power into secondary power outside the cabin, and supplies power to the second-level external equipment of the power supply and distribution control circuit in the external area. The shunt regulator receives the command voltage from the system bus through the sun-oriented device and provides the command voltage to the level 2 external equipment of the power supply and distribution control circuit in the external area.

2. The applicable re-startable multi-area distributed power distribution system according to claim 1, characterized in that: The power supply and distribution control circuit for the cabin area includes a bus filter and Level 2 cabin equipment; wherein... The bus filter receives primary power from the system bus, converts the primary power into secondary power in the cabin, and supplies power to the Level 2 cabin equipment. The Level 2 cabin equipment receives command voltage from the system bus.

3. The applicable re-startable multi-area distributed power distribution system according to claim 2, characterized in that: The Level 2 in-cabin equipment includes charge / discharge regulator a, charge / discharge regulator b, charge / discharge regulator c, charge / discharge regulator d, in-cabin drive controller, and power manager.

4. The applicable restartable multi-area distributed power distribution system according to claim 3, characterized in that: The primary power supply is 100V, and the secondary power supplies inside the cabin include +5V, ±12V and +28V.

5. The applicable re-startable multi-area distributed power distribution system according to claim 4, characterized in that: The secondary power supply required by the charge / discharge regulator a is +5V and ±12V; The charge / discharge regulator b requires a secondary power supply of +5V and ±12V. The charge / discharge regulator c requires a secondary power supply of +5V and ±12V. The charge / discharge regulator d requires +5V and ±12V for its internal secondary power supply. The cabin drive controller requires +5V, ±12V and +28V for its cabin secondary power supply. The power manager requires +5V and ±12V for the cabin secondary power supply.

6. The applicable re-startable multi-area distributed power distribution system according to claim 1, characterized in that: The Level 2 external equipment includes an integrated drive controller, an external drive controller, an external temperature controller, and a sensitive controller.

7. The applicable restartable multi-area distributed power distribution system according to claim 6, characterized in that: The primary power supply is 100V, and the external secondary power supply includes +5V, ±12V and +28V.

8. The applicable re-startable multi-area distributed power distribution system according to claim 7, characterized in that: The integrated drive controller requires external secondary power supplies of +5V, ±12V and +28V. The external secondary power supply required by the external drive controller is +5V, ±12V and +28V; The external temperature controller requires an external secondary power supply of +5V and ±12V. The external secondary power supply required by the Taimin controller is +5V.

9. The applicable re-startable multi-area distributed power distribution system according to claim 1, characterized in that: The power supply and distribution control circuit for the external area also includes: an on-orbit extended controller; wherein... The shunt regulator receives primary power from the system bus via the sun-oriented device, converts the primary power into external secondary power, and supplies power to the on-orbit extension controller. The shunt regulator receives the command voltage from the system bus through the sun-oriented device and provides the command voltage to the on-orbit extension controller.

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