Electrical configuration and integrated control method of battery energy storage and computing center for hydropower units
By configuring a battery energy storage system on the DC bus of the hydropower unit's motor and collaboratively controlling hydropower, battery energy storage, and computing load through a coordinated control system, the electrical configuration and integrated control issues of the data center and pumped storage system were resolved, achieving full resource utilization and efficient system operation.
Patent Information
- Application Number
- CN202411269246.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2044-09-11
AI Technical Summary
In existing technologies, the combination of data centers and pumped storage systems fails to fully exploit their electrical configuration and integrated control methods, resulting in resource waste and inflexible control, and is unable to effectively respond to the energy demands of computing loads and the peak and frequency regulation needs of the power grid.
A battery energy storage system is configured on the DC bus of the hydropower unit's motor, supplying energy to the calculated load through the DC bus and three-phase AC bus. A coordinated control system is used to collaboratively control hydropower, battery energy storage, and calculated load, enabling flexible response to grid power regulation and calculated load, and reducing mechanical wear on the hydropower unit.
It achieves full utilization of resources, reduces mechanical wear of hydropower units, improves system reliability and fault response capabilities, reduces operation and maintenance costs, and improves the efficiency of power grid peak and frequency regulation.
Smart Images

Figure CN119070359B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of energy supply, and in particular relates to an electrical configuration and integrated control method of a battery energy storage and computing center of a hydropower unit. Background Art
[0002] Computing loads such as data centers and supercomputing centers are experiencing rapid growth in electricity consumption. A power supply model primarily based on thermal power significantly increases carbon emissions and pollution. Therefore, low-carbon development of computing loads can be achieved by increasing the proportion of renewable energy in powering computing loads. Furthermore, considering electricity prices and future carbon emission costs, using renewable energy as the primary source of electricity for computing loads can reduce computing production costs. Photovoltaic and wind power can serve as important sources of electricity for computing loads, but their volatility and intermittency make them incapable of meeting the energy demands of computing loads. Chinese patent application CN202110455530.5 proposes a method and device for optimizing battery charging and discharging in data centers. This method selects appropriate times for battery charging and discharging, achieving peak load shaving and valley filling for data center power supply, maximizing the energy storage benefits of energy storage batteries and thereby reducing data center electricity costs and total cost of ownership. Chinese patent application CN202010136529.1 proposes a method and system for optimizing the coordinated configuration of photovoltaic and battery energy storage in data centers, optimizing data center electricity prices through the configuration of photovoltaic and battery energy storage. Although the current battery energy storage capacity can reach 100MW, considering the technical feasibility and economic feasibility, the current battery energy storage system is more suitable for the application scenario of 10MW-level data centers.
[0003] From a comprehensive analysis of technical and economic feasibility, pumped hydropower storage remains the most ideal energy storage system. As the capacity of individual large-scale data centers or data center clusters exceeds 1,000MW, pumped hydropower storage is an ideal peak-shaving and backup (emergency) power source for large data centers. Tencent has proposed building a data center near a pumped hydropower station, arguing that for data centers, pumped hydropower stations act like super batteries, charging at night and discharging during the day. This mature energy storage technology can provide frequency stabilization, filtering, and power outage protection for data centers. Furthermore, the two large-capacity reservoirs of a pumped hydropower station act as two super-cold storage tanks or water ponds for the data center. The deep water in these reservoirs can be used for continuous cooling and heat dissipation replenishment in the data center. The large amount of cold water stored creates a significant amount of backup cooling capacity. Furthermore, it offers flexible scheduling for computing loads, enabling flexible power adjustment. Tencent has conducted research on the synergy between computing power and power supply flexibility in data centers. By assessing the computing power and power characteristics of computing tasks on servers, it aims to shift peak loads and offset valley loads on the grid without impacting business operations. In addition, data centers can also participate in demand-side responses at the minute or second level, or participate in the electricity spot market and electricity ancillary service market, and have the characteristics of flexible electricity response.
[0004] However, the combination of data centers and pumped storage should not be limited to geographical proximity, using only the water source of the pumped storage for cooling, or the data center and pumped storage being controlled and responded to according to the needs of the power grid respectively. Therefore, it is necessary to continue to deeply explore the electrical configuration between the two and the comprehensive control method of mutual coupling. Summary of the Invention
[0005] To solve the above technical problems, the present invention provides an electrical configuration and integrated control method for a battery energy storage and computing center of a hydropower unit. A battery energy storage system is configured on the DC bus of the hydropower unit's motor. At the same time, the DC bus and the three-phase AC bus simultaneously supply energy to the computing load (data center or supercomputing center). The AC bus is connected to the stator of the doubly-fed asynchronous motor. The doubly-fed asynchronous motor, battery energy storage (after AC-DC conversion), and computing load are all connected to the grid via a transformer connected to the three-phase AC bus. At the same time, the battery energy storage and computing load are connected to the rotor of the doubly-fed asynchronous motor and the three-phase AC bus via the DC bus and the AC-DC-AC converter.
[0006] Under the control of a coordinated control system, the hydropower, battery energy storage, and computational load systems respond to grid power commands and participate in grid power regulation through the hydropower power control system, the battery power control system, and the computational load power control system. The computational load can flexibly respond to power command changes, collaborating with the hydropower and battery energy storage to participate in grid peak regulation. The computational load and battery energy storage have sub-second power response capabilities. As frequency-regulated power sources, the hydropower units are not involved in frequency regulation, reducing mechanical wear caused by frequent power dynamics. When the hydropower units use a full-power converter to drive synchronous motors, the battery energy storage is located on the full-power converter's DC bus. This DC bus and the three-phase AC bus simultaneously power the computational load. When the hydropower units use synchronous motors directly connected to the grid, the battery energy storage is connected to the three-phase AC bus via an AC-DC converter. Both the DC bus and the three-phase AC bus simultaneously power the computational load. Furthermore, the battery energy storage and computational load can share the same grid-connected transformer with the synchronous motors, or they can use a separate transformer for grid connection.
[0007] In order to achieve the above object, the present invention adopts the following technical solutions:
[0008] The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit is as follows: battery energy storage is configured on the DC bus of the motor of the hydropower unit. At the same time, the DC bus and the three-phase AC bus simultaneously supply energy to the computing load. The three-phase AC bus is connected to the stator of the doubly-fed asynchronous motor. The doubly-fed asynchronous motor, battery energy storage, and computing load are all connected to the grid through the transformer connected to the three-phase AC bus. At the same time, the battery energy storage and computing load are connected to the rotor of the motor and the three-phase AC bus through the DC bus; the computing load is powered by both the DC bus and the three-phase AC bus, and the power of the DC bus comes from the battery. Energy storage and converter, the power of the three-phase AC bus comes from the hydropower units and the power grid, and the calculation load power control system distributes the power supply instructions of the DC bus and the three-phase AC bus; the coordination control system is connected to the hydropower power control system, the battery energy storage power control system, and the calculation power control system, and sends power control instructions and receives status feedback signals; the hydropower power control system is connected to the AC-DC-AC converter and guide vanes; the battery energy storage power control system is connected to the AC-DC-AC converter; the calculation task scheduling system receives the calculation task instructions, connects to the calculation power control system, and connects to the calculation load actuator;
[0009] The coordinated control system receives power instructions from the power grid and the power grid frequency signal. According to the status of the hydropower units, battery energy storage and computing center, the coordinated control system sends power instructions to the hydropower units, battery energy storage and computing center respectively. The hydropower units, battery energy storage and computing center respond to the power instructions and feed back the power tracking response information to the coordinated control system for mutual power ratio compensation; the coordinated control system configures the upper and lower limits of the frequency regulation power of the battery energy storage and computing center according to the status of the battery energy storage and computing center, and transmits the instructions to the battery energy storage power control system and the computing load power control system; the battery energy storage power control system and the computing load power control system determine the frequency regulation response rate according to the status of the battery energy storage and the computing load, receive the power grid frequency signal from the coordinated control system, and participate in the power grid frequency regulation.
[0010] Furthermore, the coordinated control system receives power grid instructions and grid frequency signals; at the same time, the coordinated control system receives information from the hydropower power control system to obtain the status of each hydropower unit and the water level of the reservoir, which are used to form the hydropower power and power generation curve; the coordinated control system receives information from the battery energy storage power control system to obtain the battery health status; the coordinated control system receives information from the calculated load power control system to obtain the real-time calculated load power, the minimum required calculated load power and the predicted curve of the future calculated load power.
[0011] Furthermore, the computing load responds to the computing task instructions and the power instructions of the coordination control system at the same time. The computing task instructions are issued to the computing task scheduling system, which decomposes the tasks into delay-tolerant tasks and non-delay-tolerant tasks, and calculates the power of the two types of tasks respectively, and feeds back to the computing load power control system. The computing load power control system calculates the allowable fluctuation range of the overall power of the computing load and feeds back to the coordination control system; in the power composition of the total computing load, the power of the non-delay-tolerant tasks is a power component that must be met, and the power of the delay-tolerant tasks can be adjusted and belongs to the fluctuating component in the total computing load power.
[0012] Furthermore, the coordinated control system calculates and issues power control instructions for the computing load based on the allowable fluctuation range of the overall power of the computing load, and transmits them to the computing task scheduling system through the computing load power control system. The computing task scheduling system processes and decomposes the allocation of delay-tolerant tasks and non-delay-tolerant tasks, and transmits the instructions to the computing load execution unit. At the same time, the measured actual computing load power is fed back to the coordinated control system through the computing load power control system to compensate for the error in tracking the computing load power instruction.
[0013] Furthermore, when the system composed of hydropower units, battery energy storage and computing loads performs peak load regulation on the power grid, the coordinated control system calculates and distributes power instructions based on the status, power and output forecast of the hydropower units, battery energy storage and computing center.
[0014] Furthermore, when the system composed of hydropower units, battery energy storage and computing loads performs frequency modulation on the power grid, the hydropower units do not participate in the frequency modulation response, and the dynamic changes in power are borne by the battery energy storage and computing loads; the battery energy storage power control system and the computing load power control system respectively feed back the adjustable power range to the coordinated control system, and at the same time receive the grid frequency signal from the coordinated control system. The coordinated control system determines the upper and lower limits of the frequency modulation power borne by the battery energy storage and computing load respectively and passes the configuration instructions to the power control systems of the battery energy storage and computing load. The frequency modulation response rate and climbing rate are determined by the power control systems of the battery energy storage and computing load according to their respective states.
[0015] Furthermore, the computational load responds to the dynamic power required by frequency modulation by dynamically changing the power of delay-tolerant tasks.
[0016] Beneficial effects:
[0017] (1) Hydropower units can not only serve as power sources or energy storage systems for the power grid, but can also serve as regulating power sources and long-term backup power sources for computing loads (data centers or supercomputing centers). Since computing loads must be equipped with battery energy storage as an emergency power source, but battery energy storage is only activated in emergency situations, resulting in a waste of resources, integrating computing loads and their battery energy storage systems with hydropower can broaden the frequency regulation and peak regulation functions of battery energy storage in the power grid. In this way, hydropower can serve as an emergency power source and peak regulation power source for computing loads, and the battery energy storage that is standard for computing loads can participate in the peak regulation and frequency regulation of the power grid, achieving the effect of fully utilizing resources.
[0018] (2) The calculated load itself can flexibly adjust power, and the battery energy storage power response is fast. The two can jointly provide the frequency response power required by the power grid. There is no need for frequent frequency adjustment of hydropower units. Hydropower units only perform peak regulation and respond to slowly changing power instructions. This can reduce mechanical wear of hydropower units, reduce the probability of maintenance and power outages, and save operation and maintenance costs.
[0019] (3) The computational load is powered by both the DC bus and the AC bus. This dual power supply mode can greatly improve the system's reliability and ability to cope with faults. Battery energy storage is configured on the DC bus, which allows for flexible adjustment and coordinated control of the power supplied to the computational load by the battery energy storage and the AC bus. This also makes the power distribution between the AC bus, rotor, battery energy storage, and computational load more flexible and the control simpler. This eliminates the need for equal power at the three-phase AC bus end and the rotor winding end of the AC / DC converter, achieving decoupling between the two. This decouples the motor control from the grid-side AC / DC converter control, reducing control requirements.
[0020] (4) The electrical and control systems of the hydropower units and computing loads are integrated and share power and communication (control) interfaces, enabling flexible on-site dispatching of power and computing power. This eliminates the need to build separate power and communication networks, saving costs and resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 Schematic diagram of the configuration of the doubly-fed asynchronous motor and the electrical system of the data center / supercomputing center;
[0022] Figure 2 Schematic diagram of the electrical system configuration of a synchronous motor controlled by a full-power inverter and a data center / supercomputing center;
[0023] Figure 3 Schematic diagram of the electrical system configuration of synchronous motors directly connected to the grid and data centers / supercomputing centers;
[0024] Figure 4 Schematic diagram of a synchronous motor directly connected to the grid and a data center / supercomputing center connected to the grid through different transformers;
[0025] Figure 5 This is a control block diagram of the battery energy storage for hydropower units and the electrical configuration and integrated control method for a data center / supercomputing center according to the present invention.
[0026] Among them, the accompanying drawings are marked as follows: 101 is a hydraulic unit, 102 is a water diversion pipe, 103 is a water outlet, 104 is a guide vane system, 105 is a doubly fed asynchronous motor, 106 is an AC-DC-AC converter, 107 is a first calculated load, 108 is a first battery energy storage, 109 is a first DC bus, 110 is a first three-phase AC bus, 111 is a fifth transformer, 112 is a first hydropower power control system, 113 is a first calculated load power control system, 114 is a first coordinated control system, 201 is a first synchronous motor, 202 is a first converter, 203 is a grid-connected transformer, 204 is a second battery energy storage, 205 is a second three-phase AC bus, 206 is a second DC bus, 207 is a second calculated load, 208 is a first power supply, The second calculated load power control system, 209 is the second hydropower power control system, 210 is the second coordinated control system, 301 is the second synchronous motor, 302 is the second transformer, 303 is the AC-DC converter, 304 is the third battery energy storage, 305 is the third DC bus, 306 is the third three-phase AC bus, 307 is the third calculated load, 308 is the third calculated load power control system, 309 is the third hydropower power control system, 310 is the third coordinated controller, 401 is the third synchronous motor, 402 is the third transformer, 403 is the fourth calculated load, 404 is the fourth transformer, 405 is the AC-DC converter, 406 is the fourth three-phase AC bus, 407 is the fourth battery energy storage, and 408 is the fourth DC bus. DETAILED DESCRIPTION
[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
[0028] like Figure 1As shown, a hydroelectric unit 101 is connected to a doubly-fed asynchronous motor 105. The three-phase output of the stator winding of the doubly-fed asynchronous motor 105 is connected to a fifth transformer 111, which is connected to the power grid. The three-phase output of the rotor winding of the doubly-fed asynchronous motor 105 is connected to an AC-DC-AC converter 106. The AC-DC-AC converter 106 has a first DC bus 109, to which a first battery energy storage device 108 is connected. The first three-phase AC bus 110 and the first DC bus 109 are simultaneously connected to a first calculated load 107, thereby jointly supplying power to the first calculated load 107. The power of the hydroelectric unit is controlled by controlling a first coordinated control system 114 to change the guide vanes and the AC-DC-AC converter 106 to change the operating conditions of the doubly-fed asynchronous motor 105. A first calculated load power control system 113 is connected to the first calculated load 107 and to the first coordinated control system 114, and is used to change the real-time power of the first calculated load 107 in various ways. The AC-DC-AC converter 106 not only controls the operating conditions of the doubly-fed asynchronous motor 105 but also controls the power of the first battery energy storage 108 connected to the grid via the AC-DC-AC converter 106. A first coordinated control system 114 is connected to the first hydropower power control system 112, the first calculated load power control system 113, and the AC-DC-AC converter 106. It coordinates the power of these three systems, controlling the power of the entire system connected to the grid via the fifth transformer 111. The first hydropower power control system 112 is connected to the guide vane system 104, the AC-DC-AC converter 106, and the first coordinated control system 114. The hydropower power control system 112 receives commands from the first coordinated control system 114 and provides feedback on the status of the hydropower generator. The first hydropower power control system 112 controls the guide vane opening of the guide vane system 104 and, by controlling the AC-DC-AC converter 106, controls the operating conditions of the doubly-fed asynchronous motor 105, thereby controlling the power of the hydropower generator.
[0029] Preferably, the hydraulic unit 101 may be a turbine, a water pump, or a pump-turbine.
[0030] Preferably, the first computing load 107 may be a data center, a supercomputing center, or an intelligent data center.
[0031] like Figure 2As shown, when the motor is a synchronous motor controlled by a full-power power electronic converter, the first synchronous motor 201 is connected to the grid via a grid-connected transformer 203 after passing through a first converter 202. A second battery energy storage 204 is configured on the second DC bus 206 of the first converter 202. The second three-phase AC bus 205 and the second DC bus 206 simultaneously supply energy to a second calculated load 207. A second calculated load power control system 208 controls the power of the second calculated load 207. A second hydropower power control system 209 controls the operating condition of the first synchronous motor 201 by controlling the first converter 202, and controls the water flow by controlling the guide vanes to achieve the purpose of controlling the hydropower power. The first converter 202 is a full-power frequency converter that not only controls the operating conditions of the first synchronous motor 201 but also controls the grid-connected power of the second battery energy storage 204 via the first converter 202. The second coordinated control system 210 coordinates the power commands of the second calculated load power control system 208, the second hydropower power control system 209, and the first converter 202, controlling the power connected to the grid via the grid-connected transformer 203 for the entire system consisting of the hydropower generator set, the battery energy storage, and the computing center. The second coordinated control system 210 is connected to the second calculated load power control system 208, the second hydropower power control system 209, and the first converter 202, respectively. The second calculated load power control system 208 is also connected to the second calculated load 207, and the second hydropower power control system 209 is also connected to the first converter 202 and the guide vane system.
[0032] like Figure 3 As shown, when the motor is a synchronous motor directly connected to the grid, the three-phase stator output of the second synchronous motor 301 is connected to the second transformer 302, and then connected to the grid through the second transformer 302. The AC-DC converter 303 is connected to the third three-phase AC bus 306 and the third DC bus 305. The third battery energy storage 304 is connected to the third DC bus 305. The third three-phase AC bus 306 and the third DC bus 305 jointly supply energy to the third calculated load 307. The third calculated load power control system 308 controls the power of the third calculated load 307 in real time. The third hydropower power control system 309 controls the power of the hydropower unit by controlling the guide vanes. The AC-DC converter 303 controls the grid-connected power of the third battery energy storage 304. The third coordination controller 310 coordinates the power control instructions of the third calculated load power control system 308, the third hydropower power control system 309, and the AC-DC converter 303.
[0033] like Figure 4 As shown in the figure, when the synchronous motor directly connected to the grid and the data center / supercomputing center (including battery energy storage) are connected to the grid through their own transformers, their structures are similar to Figure 3The systems shown are similar, differing only in that a third synchronous motor 401 is connected to the grid via a third transformer 402, and a fourth calculated load 403 is connected to the grid via a fourth transformer 404. A fourth three-phase AC bus 406 and a fourth DC bus 408 simultaneously supply energy to the fourth calculated load 403. An AC / DC converter 405 connects the fourth three-phase AC bus 406 and the fourth DC bus 408, and a fourth battery 407 is located on the fourth DC bus 408.
[0034] like Figure 5 As shown, the electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower generator unit of the present invention includes: a coordinated control system receives power instructions and grid frequency signals from the grid; at the same time, the coordinated control system receives information from the hydropower power control system to obtain information related to the hydropower power and power generation curve (or pumped storage power and storage capacity), such as the status of each hydropower generator unit and the water level of the reservoir; the coordinated control system receives information from the battery energy storage power control system to obtain relevant information such as the battery health status, available energy storage power and storage capacity; and the coordinated control system receives information from the calculation load power control system to obtain the real-time calculation load power, the minimum required calculation load power, and the predicted curve of the future calculation load power.
[0035] The computational load responds to both computational task instructions and power instructions from the coordinated control system. The computational task instructions are issued to the computational task scheduling system, which decomposes the tasks into delay-tolerant and non-delay-tolerant tasks. The system calculates the power of each type of task separately (of the total computational load power, the power of non-delay-tolerant tasks is a required power component, while the power of delay-tolerant tasks is adjustable and constitutes a fluctuating component of the total computational load power). This power is then fed back to the computational load power control system, which calculates the allowable fluctuation range of the overall computational load power and feeds it back to the coordinated control system. Based on the allowable fluctuation range of the overall computational load power, the coordinated control system calculates and issues power control instructions for the computational load. These instructions are then passed through the computational load power control system to the computational task scheduling system, which processes and decomposes the allocation of delay-tolerant and non-delay-tolerant tasks and transmits the instructions to the computational load execution units. The system also feeds the measured actual computational load power back to the coordinated control system through the computational load power control system to compensate for errors in tracking the computational load power instructions.
[0036] In addition, the calculated load is powered by both the DC bus and the three-phase AC bus. The DC bus power comes from battery energy storage and converters, and the three-phase AC bus power comes from hydropower units and the power grid. The power supply instructions for the DC bus and the three-phase AC bus are distributed by the calculated load power control system.
[0037] When the system performs peak regulation on the power grid, the coordinated control system calculates and distributes power instructions based on the hydropower units, battery energy storage, calculated load status, power, and output forecast.
[0038] When a system composed of hydropower generators, battery energy storage, and computational loads regulates grid frequency, the hydropower generators are excluded from frequency regulation to prevent mechanical wear on the pump / turbine blades, water pipes, volutes, bearings, and other components affected by dynamic hydraulic shock. Dynamic power changes are instead handled by the battery energy storage and computational loads. The battery energy storage power control system, integrated with the battery energy storage and frequency converter, is connected to the coordinated control system. It receives commands from the coordinated control system and provides feedback on the battery energy storage system's status. The battery energy storage power control system and computational load power control system each provide feedback on their adjustable power ranges to the coordinated control system. They also receive grid frequency signals from the coordinated control system. The coordinated control system determines the upper and lower limits for frequency regulation power borne by the battery energy storage and computational load, respectively, and transmits these configuration instructions (the upper and lower limits for frequency regulation power borne by the battery energy storage and computational load, respectively) to the battery energy storage power control system and computational load power control system.
[0039] The frequency regulation response rate and ramp rate are determined by the battery energy storage power control system and the computational load power control system based on their respective states. The computational load responds to the dynamic power requirements of frequency regulation by dynamically changing the power of delay-tolerant tasks.
Claims
1. Electrical configuration and integrated control method of battery energy storage and computing center for hydropower units, characterized in that: Battery energy storage is configured on the DC bus of the hydropower unit's motor. At the same time, the DC bus and the three-phase AC bus simultaneously supply energy to the computational load. The three-phase AC bus is connected to the stator of the doubly-fed asynchronous motor. The doubly-fed asynchronous motor, battery energy storage, and computational load are all connected to the grid through the transformer via the three-phase AC bus. At the same time, the battery energy storage and computational load are connected to the rotor of the motor and the three-phase AC bus via the DC bus. The computational load is powered by both the DC bus and the three-phase AC bus. The power of the DC bus comes from the battery energy storage and the converter, while the power of the three-phase AC bus comes from the hydropower unit and the grid. The computational load power control system distributes power instructions for the DC bus and the three-phase AC bus. The coordination control system is connected to the hydropower power control system, the battery energy storage power control system, and the computational power control system and sends power control instructions and receives status feedback signals. The hydropower power control system is connected to the AC-DC-AC converter and guide vanes. The battery energy storage power control system is connected to the AC-DC-AC converter. The computational task scheduling system receives computational task instructions, connects to the computational power control system, and connects to the computational load actuator. The coordinated control system receives power instructions from the power grid and the power grid frequency signal. According to the status of the hydropower units, battery energy storage and computing center, the coordinated control system sends power instructions to the hydropower units, battery energy storage and computing center respectively. The hydropower units, battery energy storage and computing center respond to the power instructions and feed back the power tracking response information to the coordinated control system for mutual power ratio compensation; the coordinated control system determines the upper and lower limits of the frequency regulation power borne by the battery energy storage and computing load respectively and transmits the configuration instructions of the upper and lower limits to the power control systems of the battery energy storage and computing load; the battery energy storage power control system and the computing load power control system determine the frequency regulation response rate according to the status of the battery energy storage and computing load, receive the power grid frequency signal from the coordinated control system, and participate in the power grid frequency regulation.
2. The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit according to claim 1 is characterized in that: The coordinated control system receives power commands and frequency signals from the power grid. At the same time, the coordinated control system receives information from the hydropower power control system to obtain the status of each hydropower unit and the water level of the reservoir, which are used to form the hydropower power and power generation curve. The coordinated control system receives information from the battery energy storage power control system to obtain the battery health status. The coordinated control system receives information from the calculated load power control system to obtain the real-time calculated load power, the minimum required calculated load power, and the predicted curve of the future calculated load power.
3. The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit according to claim 1 is characterized in that: The computing load responds to the computing task instructions and the power instructions of the coordination control system at the same time. The computing task instructions are issued to the computing task scheduling system, which decomposes the tasks into delay-tolerant tasks and non-delay-tolerant tasks, and calculates the power of the two types of tasks respectively, and feeds back to the computing load power control system. The computing load power control system calculates the allowable fluctuation range of the overall power of the computing load and feeds back to the coordination control system; in the power composition of the total computing load, the power of the non-delay-tolerant tasks is a power component that must be met, and the power of the delay-tolerant tasks can be adjusted and belongs to the fluctuating component in the total computing load power.
4. The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit according to claim 1 is characterized in that: The coordinated control system calculates and issues power control instructions for the computing load based on the allowable fluctuation range of the overall power of the computing load, and transmits them to the computing task scheduling system through the computing load power control system. The computing task scheduling system processes and decomposes the allocation of delay-tolerant tasks and non-delay-tolerant tasks, and transmits the instructions to the computing load execution unit. At the same time, the measured actual computing load power is fed back to the coordinated control system through the computing load power control system to compensate for the error in computing load power instruction tracking.
5. The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit according to claim 1 is characterized in that: When the system composed of hydropower units, battery energy storage and computing loads performs peak load regulation on the power grid, the coordinated control system calculates and distributes power instructions based on the status, power and output forecast of the hydropower units, battery energy storage and computing center.
6. The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit according to claim 3 is characterized in that: When the system composed of hydropower units, battery energy storage and calculated loads regulates the frequency of the power grid, the hydropower units do not participate in the frequency regulation response, and the dynamic changes in power are borne by the battery energy storage and calculated loads; the battery energy storage power control system and the calculated load power control system respectively feed back the adjustable power range to the coordinated control system, and at the same time receive the grid frequency signal from the coordinated control system; the frequency regulation response rate and climbing rate are determined by the battery energy storage and calculated load power control systems according to their respective states.
7. The electrical configuration and integrated control method of the battery energy storage and computing center of the hydropower unit according to claim 1 is characterized in that: The computational load responds to the dynamic power required by frequency modulation by dynamically changing the power of delay-tolerant tasks.
Citation Information
Patent Citations
Data center battery charging and discharging optimization control method and device
CN113131584A
A method and system for coordinated optimization of optical and energy storage configuration in data centers
CN113364042B
Data center contact line power control method based on demand side responses
CN107086587A
Integrated power supply device for energy storage power station and data center load
CN111917170A