Multi-network integration heterogeneous complementary power supply system of zero-carbon park / green data center

Abstract

The invention provides a multi-network fusion heterogeneous complementary power supply system of a zero-carbon park / green data center, which is a highly integrated and innovative micro-grid architecture, introduces a'single-line looped network 'technology as a core, and is composed of a new energy power generation cluster single-line looped network, a park / data center direct-current power distribution single-line looped network and an alternating-current power distribution three-phase looped network. The new energy power generation cluster is connected in series with n power generation systems through a single-line looped network, and the looped network DC / DC converter, the DC / AC inverter and the DC input end of the multi-port bidirectional energy storage energy router form a closed loop. The DC power distribution single-line looped network is connected in series with the n DC / DC power distribution devices, the AC / DC rectifier and the DC / DC end of the energy storage router; the AC power distribution three-phase looped network is connected in parallel with the AC / AC power distribution equipment, the transformer and the DC / AC end of the energy storage router. According to the invention, the high-efficiency consumption of new energy is realized through a single-line looped network architecture, and the high-reliability and high-efficiency power supply requirements of a zero-carbon park / data center in a 100% new energy supply scene are met.

Description

Technical Field

[0001] This invention belongs to the fields of new energy power generation, energy storage, and microgrids, and specifically involves a multi-network integrated heterogeneous complementary power supply system for zero-carbon parks / green data centers. Background Technology

[0002] The rapid development of zero-carbon industrial parks and green data centers has placed higher demands on the national requirement for "green direct power supply." However, a core contradiction lies in the fact that new energy construction adopts a clustered layout, while remaining relatively separate from industrial parks and data centers. This "source-load geographical mismatch" encounters bottlenecks in ensuring stable power supply, efficiently absorbing green electricity, and controlling energy costs, urgently requiring systemic innovation. Under the dual constraints of the mandatory "zero-carbon" target and the rigid demand for "high reliability," the traditional power supply model, which relies on long-distance transmission, uses traditional thermal power as a stable base load, and separates generation and consumption, has reached its limits in terms of economics, technical feasibility, and policy compliance. The future solution must inevitably be the construction of a new power system characterized by "local priority, intelligent collaboration, multi-energy complementarity, and market-driven development," and zero-carbon industrial parks and green data centers are the forefront testing grounds and key drivers of this transformation. Currently, newly built data centers are required to achieve an 80% green electricity consumption ratio, promoting the coordinated operation of computing power and electricity, and promoting the local absorption of new energy sources by computing infrastructure through new business models such as direct green electricity connection and smart microgrids.

[0003] With the rapid development of power electronics technology, various types and levels of power supplies have been introduced. For example, data center power supplies utilize A / B / C graded configurations, resulting in diversified power system redundancy. Flexible HVDC (High Voltage Direct Current) power supply on the external power supply side of server racks, and next-generation 750V / 800V solutions with end-to-end efficiency of approximately 98%, have become important development directions for data center power supply systems. These solutions effectively support the transition of data center power distribution systems towards high efficiency, high power density, low footprint, and intelligent control, while also being compatible with renewable energy access, driving the evolution of power distribution and conversion technologies with higher voltage levels, higher power density, and higher dynamic response. However, to ensure the reliability of the 800V DC power supply system in data centers, the grid-side power supply method at the next higher level is crucial. Therefore, a data center all-DC power supply system architecture adapted to future 100% renewable energy scenarios needs to possess high efficiency, high reliability, flexible redundancy configuration, and rapid fault response capabilities to support the continuous and stable power supply needs of data centers. Summary of the Invention

[0004] To address the aforementioned technical challenges, this invention provides a multi-network converged heterogeneous complementary power supply system for zero-carbon parks / green data centers. This system is a highly integrated and innovative microgrid architecture. Its core innovation lies in the introduction of a novel electrical connection form—a "single-line ring network"—combined with a traditional three-phase AC ring network, and coordinated control via a "multi-port bidirectional energy storage router" as the hub.

[0005] Because single-line ring network technology can effectively address the volatility and local consumption of new energy sources, single-line ring networks offer advantages in terms of friendliness, economy, and stability in energy exchange with the power grid, different types of power sources, and other single-line ring networks through multi-port bidirectional energy storage routers. Furthermore, by combining new communication technologies, new power electronic topology technologies, and big data analysis, and through multi-line ring network series energy exchange, a multi-network converged heterogeneous complementary power supply system for zero-carbon parks / green data centers is formed. This ensures the reliability of data center power supply while simultaneously meeting the demand for efficient and reliable power supply for future 100% renewable energy all-DC parks / data centers.

[0006] The zero-carbon park / green data center multi-network integrated heterogeneous complementary power supply system of this invention is a microgrid architecture composed of source, grid, load, and storage. The multiple networks are a single-line ring network for the new energy power generation cluster, a single-line ring network for DC distribution in the park / data center, and a three-phase ring network for AC distribution in the park / data center. The single-line ring network for the new energy power generation cluster is formed by connecting several new energy power generation systems, a ring network DC / DC converter, and the input terminals of corresponding multi-port bidirectional energy storage routers in series via a single power cable or superconductor, creating a closed loop for the new energy power generation cluster. The single-line ring network is a novel grid connection form, allowing for the establishment of voltage and current control strategies based on the single-line ring network to provide green direct-connection AC / DC power to the zero-carbon park / green data center. Similarly, a single-line ring network for DC power distribution in a park / data center is also a single-line ring network that connects several data center DC power distribution devices, AC / DC rectifiers, and corresponding multi-port bidirectional energy storage routers in series through a single power cable or superconductor, forming a closed loop DC power distribution circuit. The single-line ring network is a new form of power grid connection that can supply power to the power distribution devices within the ring network according to the single-line ring network power balance control strategy.

[0007] The three-phase AC power distribution ring network for a park / data center is a conventional AC ring network that supplies power to AC power distribution equipment or loads.

[0008] The aforementioned multi-network integration and heterogeneous complementarity utilizes a multi-port bidirectional energy storage router. This router absorbs excess energy from the single-line ring network of the new energy power generation cluster, balancing the power of the single-line ring network while simultaneously providing energy to the energy storage within the multi-port bidirectional energy storage router. Similarly, by absorbing or releasing power through energy storage, it supports power balancing for the single-line ring network of DC power distribution and the three-phase ring network of AC power distribution in the park / data center, ensuring the supply of green energy and simultaneously achieving energy exchange and integration across multiple networks.

[0009] While prioritizing green energy power supply for the park / data center, the system adopts a dual AC power supply plus an emergency power supply to further ensure power supply reliability.

[0010] The zero-carbon park / green data center uses a multi-network converged heterogeneous complementary power supply system and utilizes fiber optic or 5G communication links to monitor all ring network controllers and devices within the ring network in real time. At the same time, to ensure the reliability of system control, the ring network controllers within the system are mutually hot-swapped.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A multi-network integrated heterogeneous complementary power supply system for zero-carbon industrial parks / green data centers includes a single-line ring network for a new energy power generation cluster, a single-line ring network for DC power distribution in the industrial park / data center, a three-phase ring network for AC power distribution in the industrial park / data center, a multi-port bidirectional energy storage router, and an emergency backup power supply system. The single-line ring network for the new energy power generation cluster is connected in series with the single-line ring network for DC power distribution in the industrial park / data center via a ring network DC / DC converter. The single-line ring network for the new energy power generation cluster is connected in parallel with the three-phase ring network for AC power distribution in the industrial park / data center via a ring network DC / AC inverter. The multi-port bidirectional energy storage router is connected to the single-line ring network for the new energy power generation cluster, the single-line ring network for DC power distribution in the industrial park / data center, and the three-phase ring network for AC power distribution in the industrial park / data center, respectively. The emergency backup power supply system is connected to the single-line ring network for DC power distribution in the industrial park / data center and the three-phase ring network for AC power distribution in the industrial park / data center, respectively.

[0013] Furthermore, the single-line ring network of the new energy power generation cluster is interconnected with the single-line ring network of the park / data center DC distribution via ring network DC / DC converters. The power generated by the single-line ring network of the new energy power generation cluster is converted into medium-high voltage DC power to supply the park / data center DC distribution single-line ring network. The single-line ring network of the new energy power generation cluster is also interconnected with the three-phase ring network of the park / data center AC distribution via ring network DC / AC converters. The power generated by the single-line ring network of the new energy power generation cluster is converted into medium-high voltage three-phase AC power to supply the park / data center AC distribution three-phase ring network.

[0014] Furthermore, the multi-port bidirectional energy storage router interconnects the single-line ring network of the new energy power generation cluster, the single-line ring network of DC power distribution in the park / data center, and the three-phase ring network of AC power distribution in the park / data center. Through energy conversion, absorption, or release, it achieves power balance within the single-line ring network of DC power distribution in the park / data center and the three-phase ring network of AC power distribution in the park / data center, and connects in series with the single-line ring network of the new energy power generation cluster to absorb and store excess electricity.

[0015] Furthermore, the emergency power supply system is interconnected with the single-line DC distribution ring network and the three-phase AC distribution ring network of the park / data center via AC cables to ensure reliable power supply to both networks.

[0016] Furthermore, the new energy power generation cluster single-line ring network, the park / data center DC distribution single-line ring network, and the park / data center AC distribution three-phase ring network are interconnected by optical fiber or 5G communication. The new energy power generation cluster single-line ring network includes: a single-line ring network power cable / superconductor, n new energy power generation systems, a new energy cluster ring network controller, a ring network DC / DC converter, a ring network DC / AC inverter, and a multi-port bidirectional energy storage router DC input terminal. The single-line ring network power cable / superconductor can embed an optical fiber communication link, or the single-line ring network power cable / superconductor can cooperate with a 5G communication link to achieve communication with all networks within the system. The power output terminals of the n new energy power generation systems are connected in series through the single-line ring network power cable / superconductor and distributed throughout the new energy power generation cluster single-line ring network. The ring network DC / DC converter, ring network DC / AC inverter, and multi-port bidirectional energy storage router are all connected in series via single-line ring network power cables / superconductors. They are distributed and installed in the single-line ring network of the new energy power generation cluster, forming a ring-shaped new energy power generation cluster single-line ring network with n new energy power generation systems. Data exchange and real-time control are achieved with all devices in the single-line ring network of the new energy power generation cluster through the new energy cluster ring network controller using fiber optic or 5G communication links.

[0017] Beneficial effects:

[0018] 1. A multi-network, multi-level, diverse, multi-channel, and integrated power supply system ensures reliable power supply and distribution for the park / data center.

[0019] 2. Multi-network integration allows each network to operate independently, complementing each other's strengths to meet the demand for green direct power supply.

[0020] 3. High-voltage single-line ring networks reduce losses and improve efficiency, especially in the application of superconductivity, reducing the risk of natural disasters and external damage.

[0021] 4. The multi-port bidirectional energy storage router realizes energy collection, exchange, and sharing across ring networks through a common bus, complementing and redundant each other, reducing system cost and energy consumption. It can quickly and dynamically adjust and balance the power of related ring networks by absorbing or releasing energy storage power.

[0022] 5. This invention meets the needs of different types of output power supplies, such as HVDC (high voltage direct current), by reducing conversion stages to improve efficiency. The new generation of 750V / 800V solutions can achieve an end-to-end efficiency of about 98%.

[0023] 6. This invention employs mature flexible power electronics technology.

[0024] 7. To adapt to the volatility of new energy power generation, this invention can output a relatively fixed voltage, reducing the excessive redundancy design for considering changes in the output power of new energy power generation and greatly reducing costs.

[0025] 8. This invention can be applied to future data centers, configured and constructed based on new energy bases, and integrated with zero-carbon parks / green data center regions to further reduce losses and costs.

[0026] 9. The multi-network converged heterogeneous complementary power supply system for zero-carbon parks / green data centers is a highly integrated and innovative microgrid architecture. It introduces a novel electrical connection form of single-line ring network and combines it with the traditional three-phase AC ring network. It uses a "multi-port bidirectional energy storage router" as a hub for coordinated control. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the multi-network converged heterogeneous complementary power supply system for zero-carbon campuses / green data centers according to the present invention.

[0028] Figure 2 This is a schematic diagram of the new energy power generation system of the present invention;

[0029] Figure 3 The diagrams are schematic diagrams of the power distribution device of the present invention; wherein, the left diagram is a schematic diagram of the DC power distribution device for the data center of the present invention; and the right diagram is a schematic diagram of the AC power distribution device for the data center of the present invention.

[0030] Figure 4 This is a schematic diagram of the multi-port bidirectional energy storage router of the present invention.

[0031] The attached diagrams are labeled as follows: 1. Single-line ring network of new energy power generation cluster; 2. Single-line ring network of DC power distribution for park / data center; 3. Three-phase ring network of AC power distribution for park / data center; 4. Multi-port bidirectional energy storage router; 5. Ring network DC / DC converter; 6. Ring network DC / AC inverter; 7. Emergency power supply system; 8. First single-line ring network power cable / superconductor; 9. New energy power generation system; 10. New energy cluster ring network controller; 11. DC input port of ring network DC / DC converter; 12. DC output port of ring network DC / DC converter; 13. DC input port of ring network DC / AC inverter; 14. AC output port of ring network DC / AC inverter; 15. DC input terminal of multi-port bidirectional energy storage router; 16. DC output terminal of multi-port bidirectional energy storage router. 16. Input / output terminals; 17. Multi-port bidirectional energy storage router; 18. Fiber optic or 5G communication link; 19. Second single-line ring network power cable / superconductor; 20. DC / DC power distribution equipment; 21. Single-line ring network controller; 22. AC / DC rectifier; 23. Emergency power supply; 24. AC / AC power distribution equipment; 25. AC ring network controller; 26. AC / AC transformer; 27. AC power cable; 28. New energy power source; 29. ​​DC input terminal; 30. First DC / DC converter; 31. DC output terminal; 32. Common energy storage unit; 33. Common bus; 34. Second DC / DC converter; 35. DC / AC inverter; 36. A grid; 37. B grid; 38. Automatic transfer switch; 39. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 1 As shown, the zero-carbon park / green data center multi-network converged heterogeneous complementary power supply system of the present invention includes: a new energy power generation cluster single-line ring network 1, a park / data center DC power distribution single-line ring network 2, a park / data center AC power distribution three-phase ring network 3, a multi-port bidirectional energy storage router 4, and an emergency power supply system 7.

[0034] Furthermore, the single-line ring network 1 of the new energy power generation cluster is interconnected with the single-line ring network 2 of the DC power distribution network of the park / data center through the ring network DC / DC converter 5. The electricity generated by the single-line ring network 1 of the new energy power generation cluster is converted into medium-high voltage DC power to supply the DC power distribution network 2 of the park / data center through the ring network DC / DC converter 5.

[0035] The single-line ring network 1 of the new energy power generation cluster is interconnected with the three-phase AC distribution ring network 3 of the park / data center through the ring network DC / AC converter 6. The power generated by the single-line ring network 1 of the new energy power generation cluster is converted into three-phase AC medium-high voltage through the ring network DC / AC converter 6 to supply power to the three-phase AC distribution ring network 3 of the park / data center.

[0036] Furthermore, the multi-port bidirectional energy storage router 4 interconnects the single-line ring network 1 of the new energy power generation cluster, the single-line ring network 2 of the DC power distribution of the park / data center, and the three-phase ring network 3 of the AC power distribution of the park / data center. Through energy conversion, absorption, or release, it achieves power balance within the single-line ring network 2 of the DC power distribution of the park / data center and the three-phase ring network 3 of the AC power distribution of the park / data center, and connects in series with the single-line ring network 1 of the new energy power generation cluster to absorb and store excess electricity.

[0037] Furthermore, the emergency power supply system 7 is interconnected with the single-line DC power distribution network 2 and the three-phase AC power distribution network 3 of the park / data center via AC cables to ensure reliable power supply to the single-line DC power distribution network 2 and the three-phase AC power distribution network 3 of the park / data center.

[0038] Furthermore, the new energy power generation cluster single-line ring network 1, the park / data center DC power distribution single-line ring network 2, and the park / data center AC power distribution three-phase ring network 3 are interconnected by optical fiber or 5G communication.

[0039] Furthermore, the new energy power generation cluster single-line ring network 1 includes a first single-line ring network power cable / superconductor 8, n new energy power generation systems 9, a new energy cluster ring network controller 10, a ring network DC / DC converter 5, a ring network DC / AC inverter 6, and a multi-port bidirectional energy storage router DC input terminal 15.

[0040] Among them, the single-line ring network power cable / superconductor can embed an optical fiber communication link, or the single-line ring network power cable / superconductor can cooperate with a 5G communication link to achieve communication with all networks in this system.

[0041] The power output terminals of n new energy power generation systems 9 are connected in series via the first single-line ring network power cable / superconductor 8 and distributed throughout the single-line ring network 1 of the new energy power generation cluster. The ring network DC / DC converter 5, the ring network DC / AC inverter 6, and the DC input terminal 15 of the multi-port bidirectional energy storage router are all connected in series via the first single-line ring network power cable / superconductor 8 and distributed throughout the single-line ring network 1 of the new energy power generation cluster. These systems, connected in series with the n new energy power generation systems 9, form a ring-shaped single-line ring network 1 of the new energy power generation cluster. Data exchange and real-time control are achieved between the new energy cluster ring network controller 10 and all devices within the single-line ring network 1 via fiber optic or 5G communication links 18.

[0042] Furthermore, such as Figure 2 As shown, the new energy power generation system 9 includes a new energy power source 28, a DC input terminal 29, a first DC / DC converter 30, and a DC output terminal 31. The new energy power source 28 is connected to the DC input terminal 29. The power generated by the new energy power source 28 is converted by the first DC / DC converter 30 and output through the DC output terminal 31. Then, it is connected in series to the single-line ring network 1 of the new energy power generation cluster via the first single-line ring network power cable / superconductor 8. Thus, n new energy power sources are connected to the single-line ring network 1 of the new energy power generation cluster.

[0043] Furthermore, such as Figure 3 As shown in the left figure, the ring network DC / DC converter 5 is connected to the single-line ring network 1 of the new energy power generation cluster via the DC input port 11 of the ring network DC / DC converter and the first single-line ring network power cable / superconductor 8 in series. The power generation of the n new energy power generation systems 9 in the single-line ring network 1 of the new energy power generation cluster is adaptively converted into medium-high voltage DC according to the control strategy of the new energy cluster ring network controller 10. The voltage is then connected to the single-line ring network 2 of the park / data center DC power distribution via the DC output port 12 of the ring network DC / DC converter and the second single-line ring network power cable / superconductor 19 in series, providing medium-high voltage DC power to the single-line ring network 2 of the park / data center DC power distribution.

[0044] Furthermore, such as Figure 3 As shown in the right figure, the ring network DC / AC inverter 6 is connected in series to the single-line ring network 1 of the new energy power generation cluster via the DC input port 13 of the ring network DC / AC inverter and the first single-line ring network power cable / superconductor 8. The power generation of the n new energy power generation systems 9 in the single-line ring network 1 of the new energy power generation cluster is adaptively converted into three-phase AC power according to the control strategy of the new energy cluster ring network controller 10. The power is then connected in parallel to the three-phase AC ring network 3 of the park / data center via the AC output port 14 of the ring network DC / AC inverter and the AC power cable 27, providing three-phase AC power to the three-phase AC ring network 3 of the park / data center.

[0045] Furthermore, the aforementioned single-line ring network 2 for DC power distribution in the park / data center includes a second single-line ring network power cable / superconductor 19, n DC / DC power distribution devices 20, a single-line ring network controller 21, a multi-port bidirectional energy storage router DC / DC input / output terminal 16, and an AC / DC rectifier 22.

[0046] Among them, n DC / DC power distribution devices 20, multi-port bidirectional energy storage router DC / DC input / output terminals 16, and AC / DC rectifiers 22 are all connected in series through the second single-line ring network power cable / superconductor 19, and are distributed and installed on the park / data center DC power distribution single-line ring network 2, forming a ring-shaped park / data center DC power distribution single-line ring network 2. The single-line ring network controller 21 uses fiber optic or 5G communication links 18 to exchange data in real time with all devices in the park / data center DC power distribution single-line ring network 2, and performs real-time control according to the park / data center DC power distribution single-line ring network power balance control strategy.

[0047] Furthermore, the DC / DC power distribution equipment 20 is connected in series to the single-line ring network 2 of the park / data center through the second single-line ring network power cable / superconductor 19 via the DC input terminal of the DC / DC power distribution equipment, thereby obtaining the power in the single-line ring network 2 of the park / data center, and then providing power to the DC converter or load of the park / data center via the DC output terminal of the DC / DC power distribution equipment.

[0048] Furthermore, the AC / DC rectifier 22 is connected in parallel with the A power grid 37 and the emergency power supply 23 through the AC input terminal of the AC / DC rectifier. When the single-line ring network 2 of the DC power distribution in the park / data center needs supplementary or emergency power, it supplies power to the single-line ring network 2 of the DC power distribution in the park / data center through the DC output terminal via AC / DC rectification and voltage regulation.

[0049] Furthermore, the aforementioned three-phase AC power distribution ring network 3 for the park / data center includes an AC power cable 27 with embedded optical fiber, n AC / AC power distribution devices 24, an AC / AC transformer 26, a multi-port bidirectional energy storage router DC / AC input / output terminal 17, and an AC ring network controller 25.

[0050] Among them, n AC / AC power distribution devices 24, AC / AC transformers 26, and multi-port bidirectional energy storage routers DC / AC input / output terminals 17 are all connected in parallel via AC power cables 27 and distributed on the three-phase AC power distribution ring network 3 of the park / data center. The AC ring network controller 25 exchanges data with all devices in the three-phase AC power distribution ring network 3 of the park / data center using fiber optic or 5G communication links 18.

[0051] Furthermore, the AC / AC power distribution equipment 24 is connected in parallel through AC power cables 27 via the AC input terminal of the AC / AC power distribution equipment and is distributed and installed on the three-phase AC power distribution ring network 3 of the campus / data center. It obtains the power from the three-phase AC power distribution ring network 3 of the campus / data center and provides power to the AC conversion equipment or load connected to the AC / AC power distribution equipment 24 via the AC output terminal after AC / AC adaptive AC voltage regulation.

[0052] Furthermore, the AC / AC transformer 26 is connected in parallel with the B power grid 38 and the emergency power supply 23 through the AC input terminal of the AC / AC transformer. When the three-phase AC distribution ring network 3 of the park / data center needs supplementary or emergency power, the AC / AC transformer 26 transforms the voltage and supplies power to the three-phase AC distribution ring network 3 of the park / data center through the AC output terminal.

[0053] like Figure 4 As shown, the multi-port bidirectional energy storage router 4 includes a second DC / DC converter 34, a DC / DC converter 35, a DC / AC inverter 36, a common energy storage unit 32, and a common bus 33. The common energy storage unit 32 is connected to the common bus 33.

[0054] Furthermore, the DC input terminal 15 of the multi-port bidirectional energy storage router is connected in series with the single-line ring network 1 of the new energy power generation cluster through the first single-line ring network power cable / superconductor 8, and the DC output terminal of the other end of the DC / DC converter is connected to the common bus 33. The excess power in the single-line ring network 1 of the new energy power generation cluster is absorbed by the DC / DC converter and stored in the common energy storage unit 32 through the common bus 33.

[0055] Furthermore, the DC / DC input / output terminal 16 of the multi-port bidirectional energy storage router is connected in series with the single-line ring network 2 of the DC distribution network of the park / data center through the second single-line ring network power cable / superconductor 19. The other end of the DC / DC converter, the DC input / output terminal, is connected to the common energy storage unit 32 through the common bus 33. The power absorption or release of the common energy storage unit 32 provides real-time power balance support within the single-line ring network 2 of the DC distribution network of the park / data center.

[0056] Furthermore, the DC / AC input / output terminal 17 of the multi-port bidirectional energy storage router is connected in parallel with the three-phase AC distribution ring network 3 of the park / data center via AC power cable 27. The DC input / output terminal of the DC / AC inverter is connected to the public energy storage unit 32 via the public bus 33. The power absorption or release of the public energy storage unit 32 provides real-time power balance support for the three-phase AC distribution ring network 3 of the park / data center.

[0057] Furthermore, the emergency power supply system 7 includes an A power grid 37, a B power grid 38, an emergency power supply 23, and an automatic transfer switch 39. The A power grid 37 and the B power grid 38 are connected via the automatic transfer switch 39. When a fault occurs in one of the power grids, the automatic transfer switch 39 connects the system to the normally operating power grid through a fault control mechanism, ensuring reliable power supply.

[0058] Power grid A 37 and power grid B 38 are connected in parallel to the two output terminals of the emergency power supply. When power grid A 37 and power grid B 38 fail simultaneously, the emergency power supply will ensure power supply.

[0059] The working principle of this invention is as follows: Based on single-line ring network and AC ring network technology, the single-line ring network 1 of the new energy power generation cluster converts all the new energy power generation within the ring network into medium-high AC and DC voltages through the ring network DC / DC converter 5 and the ring network DC / AC inverter 6 according to the single-line ring network power output control strategy. This provides power to all DC power distribution devices in the single-line ring network 2 of the park / data center DC power distribution and all AC power distribution devices in the three-phase ring network 3 of the park / data center AC power distribution.

[0060] The DC power distribution single-line ring network 2 of the park / data center will distribute the DC power obtained from the new energy power generation cluster single-line ring network 1 through all DC / DC DC power distribution equipment 20 to supply power to the DC load.

[0061] Similarly, the AC power supply of the three-phase ring network 3 of the park / data center AC distribution network will be obtained from the AC power of the single-line ring network 1 of the new energy power generation cluster to supply AC loads.

[0062] The multi-port bidirectional energy storage router 4 plays a role in energy exchange, utilizing public energy storage to absorb excess power from the single-line ring network 1 of the new energy power generation cluster to replenish the energy storage, while ensuring maximum utilization of new energy. Through multi-port bidirectional input / output DC and AC ports, it utilizes public energy storage to support the power of the single-line ring network 2 of the DC power distribution in the park / data center and the three-phase ring network 3 of the AC power distribution in the park / data center, respectively, ensuring the stability of power supply.

[0063] To ensure system reliability, the emergency power supply system 7 provides emergency power to the single-line DC distribution ring network 2 and the three-phase AC distribution ring network 3 of the park / data center when the emergency power supply station is in operation.

[0064] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center, characterized in that, The new energy power generation cluster single-line loop network, the park / data center direct current power distribution single-line loop network, the park / data center alternating current power distribution three-phase loop network, the multi-port bidirectional energy storage energy router and the emergency guarantee power supply system are connected in series through the loop network DC / DC converter, the new energy power generation cluster single-line loop network is connected in parallel with the park / data center alternating current power distribution three-phase loop network through the loop network DC / AC inverter, the multi-port bidirectional energy storage energy router is connected with the new energy power generation cluster single-line loop network, the park / data center direct current power distribution single-line loop network and the park / data center alternating current power distribution three-phase loop network respectively, and the emergency guarantee power supply system is connected with the park / data center direct current power distribution single-line loop network and the park / data center alternating current power distribution three-phase loop network respectively.

2. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center according to claim 1, characterized in that, The new energy power generation cluster single-line loop network includes single-line loop network power cable or superconducting, new energy power generation system, new energy cluster loop network controller, loop network DC / DC converter, loop network DC / AC inverter and multi-port bidirectional energy storage energy router DC input end; the generation output end of the new energy power generation system is connected in series through the single-line loop network power cable or superconducting, the loop network DC / DC converter, the loop network DC / AC inverter and the multi-port bidirectional energy storage energy router DC input end are connected in series through the single-line loop network power cable or superconducting, and the new energy cluster loop network controller is connected with all devices in the new energy power generation cluster single-line loop network through an optical fiber or a 5G communication link.

3. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center of claim 1, wherein, The park / data center direct current power distribution single-line loop network includes single-line loop network power cable or superconducting, DC / DC direct current power distribution equipment, single-line loop network controller, multi-port bidirectional energy storage energy router DC / DC input and output end and AC / DC rectifier; the DC / DC direct current power distribution equipment, the multi-port bidirectional energy storage energy router DC / DC input and output end and the AC / DC rectifier are connected in series through the single-line loop network power cable or superconducting, and the single-line loop network controller is connected with all devices in the park / data center direct current power distribution single-line loop network through an optical fiber or a 5G communication link.

4. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center of claim 1, wherein, The park / data center alternating current power distribution three-phase loop network includes alternating current power cable, AC / AC alternating current power distribution equipment, AC / AC transformer, multi-port bidirectional energy storage energy router DC / AC input and output end and alternating current loop network controller; the AC / AC alternating current power distribution equipment, the AC / AC transformer and the multi-port bidirectional energy storage energy router DC / AC input and output end are connected in parallel through the alternating current power cable, and the alternating current loop network controller is connected with all devices in the park / data center alternating current power distribution three-phase loop network through an optical fiber or a 5G communication link.

5. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center according to claim 1, characterized in that, The multi-port bidirectional energy storage energy router comprises a DC / DC converter, a DC / DC converter, a DC / AC inverter, a public energy storage unit and a public bus; the public energy storage unit is connected with the public bus; one end of the DC / DC converter is connected in series with a new energy power generation cluster single-line loop network, and the other end is connected with the public bus; one end of the DC / DC converter is connected in series with a park / data center direct current power distribution single-line loop network, and the other end is connected with the public energy storage unit through the public bus; one end of the DC / AC inverter is connected in parallel with a park / data center alternating current power distribution three-phase loop network, and the other end is connected with the public energy storage unit through the public bus.

6. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center according to claim 1, characterized in that, The loop network DC / DC converter is connected in series with the new energy power generation cluster single-line loop network through a DC input port and connected in series with the park / data center direct current power distribution single-line loop network through a DC output port.

7. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center according to claim 1, characterized in that, The loop network DC / AC inverter is connected in series with the new energy power generation cluster single-line loop network through a DC input port and connected in parallel with the park / data center alternating current power distribution three-phase loop network through an AC output port.

8. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center according to claim 5, characterized in that, The multi-port bidirectional energy storage energy router is connected in series with the new energy power generation cluster single-line loop network through a DC input, connected in series with the park / data center direct current power distribution single-line loop network through a DC / DC input / output, and connected in parallel with the park / data center alternating current power distribution three-phase loop network through a DC / AC input / output.

9. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center of claim 1, wherein, The emergency guarantee power supply system comprises an A power grid, a B power grid, an emergency power supply and an automatic switching switch; the A power grid and the B power grid are connected through the automatic switching switch, and the A power grid and the B power grid are connected in parallel with the output end of the emergency power supply; the emergency guarantee power supply system is connected with the park / data center direct current power distribution single-line loop network and the park / data center alternating current power distribution three-phase loop network through an alternating current cable.

10. The multi-network fusion heterogeneous complementary power supply system of zero-carbon park / green data center of claim 1, wherein, The single-line loop network power cable or the superconducting embedded optical fiber communication link, or the single-line loop network power cable or the superconducting and 5G communication link cooperate, and the new energy power generation cluster single-line loop network, the park / data center direct current power distribution single-line loop network and the park / data center alternating current power distribution three-phase loop network are interconnected through optical fiber or 5G communication link.

Images