WO2012062184A1 - 泛能网的系统能效控制器及控制方法以及终端设备的控制方法 - Google Patents
泛能网的系统能效控制器及控制方法以及终端设备的控制方法 Download PDFInfo
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Definitions
- the present application relates to a system energy efficiency controller and a system control method for realizing energy optimization utilization, and in particular to a system energy efficiency controller and a system control method used in a ubiquitous energy network for realizing optimal utilization of distributed energy.
- Improving the comprehensive utilization efficiency of energy is one of the keys to achieving a low-carbon economy.
- the basic characteristics of the smart grid are technicalization, automation, and interaction.
- the interactive power network proposed by Chinese scholar Wu Jiandong is based on the open and interconnected information model. By loading the system digital equipment and upgrading the power network management system, it realizes power generation, transmission, power supply, electricity consumption, customer sales, power grid hierarchical scheduling, and integrated services.
- the national grid's smart grid technology is just a single information technology for electrical energy.
- Smart Earth also known as Smart Earth, embeds and equips sensors into various objects such as power grids, railways, bridges, tunnels, highways, buildings, water systems, dams, oil and gas pipelines, etc., and is universally connected to form so-called " The Internet of Things, and then integrate the "Internet of Things” with the existing Internet to achieve the integration of human society and physical systems.
- the essence of “Smart Earth” is the integration of the Internet of Things and the Internet.
- “Cloud Computing” provides certain data service functions at the top level.
- IBM's smart earth has realized the connection of things and things, the program lacks the optimization and coordinated control of the energy system, so that the economic benefits and social benefits expected by users cannot be fully realized.
- the program relies entirely on the coverage of the Internet of Things and the Internet.
- the network structure of the solution is flat, large and complex, and it is impossible to change the system scale according to user requirements and achieve flexible and robust networking optimization.
- a system energy efficiency controller for a ubiquitous energy network including a control decision module; a storage module, connected to the control decision module, for storing temporary and permanent information data during system operation; a power clock module, connected to the control decision module, for providing an internal clock, and implementing timing synchronization of multiple processors on the controller; an internal communication module, a control implementation unit for providing a system energy efficiency controller and a plurality of terminal devices Two-way communication between the two; and an external communication module for providing two-way communication between the system energy efficiency controller and the upper-level local optimizer, wherein the plurality of terminal devices include energy production, storage, application, and regeneration Terminal Equipment.
- a control method performed by a system energy efficiency controller comprising the following steps: a) establishing/updating a four-link model according to a preset time/event driving principle;
- a control method for performing terminal equipment for energy production, storage, application, and regeneration including the following steps:
- the energy efficiency controller of the system realizes the distributed underlying control through hierarchical information interaction. On the one hand, it can track the upper layer optimization information and adjust the control strategy in time; on the other hand, the model is continuously updated to ensure the accuracy of the control target.
- the distributed underlying control scheme facilitates the fast, clear and accurate control action, and reduces the communication bandwidth requirement; and the timely reporting of the operational information facilitates the upper-layer network to grasp the subsystem operating status in time to implement further optimization.
- a wide-area ubiquitous energy network with a layered architecture can be constructed on the basis of the existing state of the art.
- each network node works together to achieve control, optimization, and coordination of energy production, storage, application, and regeneration in their respective ranges, thereby achieving optimal system energy efficiency.
- Figure 1 schematically shows an energy subnetwork of a ubiquitous energy network.
- Figure 2 schematically shows a sub-network of matter of a ubiquitous energy network.
- Fig. 3 schematically shows an information subnetwork of a ubiquitous energy network.
- Figure 4 schematically shows the logical structure of the entire ubiquitous energy network.
- Fig. 5 schematically shows an example of a layered architecture of a ubiquitous energy network in which a system energy efficiency controller communicates with a terminal device and an upper layer local optimizer.
- Fig. 6 is a flow chart schematically showing a control method of a system energy efficiency controller.
- Fig. 7 is a flow chart schematically showing a control method of the terminal device.
- Fig. 8 is a block diagram showing the hardware structure of the system energy efficiency controller. detailed description
- System energy efficiency The efficiency or effect of energy use in a system, including a group such as thermal efficiency, electrical efficiency,
- Exergy Exergy
- Efficiency measures the parameters of the system's use of energy grades and quantities.
- An important aspect of system energy efficiency improvement is the matching of energy supply and demand grades and quantity, which is an improvement on human productivity and energy use.
- the ubiquitous energy network includes nodes connected by a virtual pipe interconnection network architecture that transmits ubiquitous energy flows, and ubiquitous energy flows are transmitted bidirectionally between nodes.
- the node includes at least one of a system energy efficiency controller, and other nodes connected to the system energy efficiency controller, an energy production device, an energy storage device, an energy application device, and an energy regeneration device.
- the system energy efficiency controller controls the input and output of the ubiquitous energy flow of at least one of the other nodes, the energy production device, the energy storage device, the energy application device, and the energy regeneration device, and the energy flow includes the energy flow, the material flow, and the information flow.
- a logical flow of intelligence formed by coupling synergies.
- Universal Control Layer Located at the bottom of the ubiquitous energy network, it is controlled by a basic energy production, storage, application and regeneration.
- the control layer receives the optimization instructions from the upper layer, and integrates various local real-time information to control various energy devices, achieving the optimal energy efficiency of the energy production, storage, application and regeneration subsystems within the control range, and operating the subsystems. Information is fed back to the upper level.
- “Local Optimization Layer” Located in the middle layer of the ubiquitous energy network, above the control layer. Comprehensive optimization of multiple energy production, storage, application and regeneration subsystems in a region.
- the local optimization layer receives messages in two directions: internal receiving information about the operation of each of the energy production, storage, application and regeneration subsystems within the jurisdiction; externally receiving higher level coordination planning information.
- the local optimization layer synthesizes this information, generates optimization information based on an optimization strategy, and sends it to each energy production, storage, application and regeneration subsystem, and transmits the local operation information to the higher layer.
- “Guangdong Coordination Layer” Located at the highest level of the ubiquitous energy network, it receives information from the local optimization layer, and uses cloud computing, cloud optimization and other means to coordinate the energy operation of the entire region, and coordinate information. Send to each node of the next level network.
- Terminal equipment various equipment and machines for energy production, storage, application and regeneration, including photovoltaic integrated panels, vacuum collectors, gas generators, heat pumps, cold storage tanks, storage batteries, various household appliances, microalgae Pool and so on. Each device has an automatic control function that collects local physical information and accepts external control commands.
- System energy efficiency controller The main control device of the general energy control layer, exercising the function of the general energy control layer, comprehensively controls the operation information of each device in the four stages of energy production, storage, application and regeneration within the control range, and There are two-way ubiquitous energy flow interactions in the upper network nodes.
- “Local area optimizer” The network node of the local area optimization layer performs the function of area optimization. According to the operation information uploaded by each controller in the area and the higher level planning information, comprehensive optimization is performed, and the regional operation information is sent to the upper layer. Network node.
- the network node of the wide-area coordination layer which performs the function of wide-area coordination planning, generally has the functions of cloud optimization and cloud services.
- the planning information required by the local optimization layer is generated; and the important operating parameters of the entire system are backed up for reference in regional energy services and policy planning.
- the energy sub-network of the ubiquitous energy network constitutes the energy part of the network structure of the ubiquitous energy network, including the energy transmission pipeline and connection between the energy production 11, the storage 12, the application 13 and the regeneration 14 terminal equipment. device.
- the energy sub-network is located on the periphery of the network structure of the ubiquitous energy network, and the connection is achieved according to the process requirements between the energy devices.
- the energy flow as part of the ubiquitous energy flow flows between the energy production 11, storage 12, application 13 and regeneration 14 four-terminal terminal equipment.
- the energy output of each equipment is equipped with a control valve for the flow and quality of the output energy. , switching time and other factors to control.
- the system energy efficiency controller 20 does not directly control these valves.
- the energy flow given here is a schematic diagram, and the actual engineering should be arranged according to the specific process.
- the material subnetwork of the ubiquitous energy network constitutes the material part of the network structure of the ubiquitous energy network, including the material transmission pipeline between the energy production 1 1 , the storage 12 , the application 13 and the regenerative 14 terminal equipment . Connect the device.
- the material subnetwork is located on the periphery of the network structure of the ubiquitous energy network, and the connection is made according to the process requirements between the energy devices.
- the material flow as part of the ubiquitous energy flow flows between the energy production 11, storage 12, application 13 and regeneration 14 four-terminal equipment.
- the material output of each equipment is equipped with a control valve for the flow and quality of the output material. Control time and other factors.
- the system energy efficiency controller 20 does not directly control these valves.
- the flow of material given here is a schematic diagram, and the actual project should be arranged according to the specific process.
- the information subnetwork of the ubiquitous energy network constitutes the information communication part of the network structure of the ubiquitous energy network.
- the terminal devices of the energy production 11, the storage 12, the application 13 and the regeneration 14 do not have a direct information communication channel with each other, but realize information interconnection through the network node.
- the information sub-network is located in the center of the network structure of the ubiquitous energy network. There is a bidirectional information channel between each device and the system energy efficiency controller 20 for transmitting sensing information and control information.
- control information sent by the system energy efficiency controller 20 to the terminal device is an instruction at the subsystem behavior level, and each device has an autonomous control implementation unit, and converts instructions from the system energy efficiency controller into Control control interrupts, control voltages, currents, motor drive signals, etc.
- the communication mode between the system energy efficiency controller 20 and each terminal device can be determined according to the working environment of the device, and must meet the temperature range, pressure change, power consumption/cost requirement, engineering convenience and the like required by the subsystem operation. .
- An example of a communication solution is given below.
- Figure 4 schematically shows the logical structure of the entire ubiquitous energy network.
- the energy subnetwork and the material subnetwork form the periphery of the network structure, while the information subnetwork is located in the center of the network structure.
- the energy and material channels are located between the end equipment of energy production 11, storage 12, application 13 and regeneration 14 .
- the system energy efficiency controller 20 uses the information channel and energy production 11, storage 12, application 13 and regeneration 14 each of the four links to achieve two-way information communication, thereby completing the interconnection of the entire network structure.
- each device sends its own local sensing information to the system energy efficiency controller 20, which integrates the operating conditions of each terminal device, based on the system energy utilization efficiency optimization and gain algorithm, to generate each device.
- the control information is sent to each device, and the internal model of each device is converted into a drive signal required for control.
- Energy production 11, storage 12, application 13 and regeneration 14 four-terminal equipment, system energy efficiency controller 20, energy channel, material channel, information channel, control valve, etc. work together to achieve energy production 11, storage 12, application 13 and The energy efficiency of the 14th regeneration is optimized.
- the system energy efficiency controller realizes the optimization of the energy utilization efficiency of the system by constructing a positive feedback loop between each terminal device, so that the outputs between the respective terminal devices are mutually excited.
- the system energy efficiency controller achieves the gain of the system energy utilization efficiency by introducing the environmental potential energy, so that the overall performance output is greater than the sum of the operating efficiencies of the individual devices.
- Fig. 5 schematically shows an example of a layered architecture of a ubiquitous energy network, wherein the system energy efficiency controllers 20-1 to 203 and the terminal devices 11-1, 11-2, 12, 13, 14 and the upper layer are locally optimized.
- the device 30 communicates.
- the ubiquitous energy network can be divided into three layers, from bottom to top: the general energy control layer, the local optimization layer and the wide area coordination layer (not shown).
- the network nodes of each layer are: System energy efficiency Controllers 20-1 through 20-3, local optimizer 30, and wide area coordinator (not shown).
- the ubiquitous control layer realizes the real-time control of the terminal equipment of energy production, storage, application and regeneration.
- the system energy efficiency controllers 20-1 to 20-3 are the center, and the integrated subsystem operation information and optimization information from the upper network nodes are integrated. Based on the local energy efficiency optimal control strategy, each device is controlled.
- the local optimization layer is located in the middle of the ubiquitous energy network and is located above the control layer. It optimizes the four subsystems of energy production, storage, application and regeneration in one area.
- the wide-area coordination layer is located at the highest level of the ubiquitous energy network, receives information from the local optimization layer, and uses the cloud computing, cloud optimization and other means to coordinate the energy operation of the entire region, and distributes the coordination information to the next.
- Each node of the primary network receives information from the local optimization layer, and uses the cloud computing, cloud optimization and other means to coordinate the energy operation of the entire region, and distributes the coordination information to the next.
- the terminal equipment of the regeneration link 14 implement two-way communication, in which the sensing information of each device is received and the control information is transmitted.
- the terminal equipment of the production section 11-1 is, for example, a power generation device for generating current and heat flow
- the terminal device of the production section 11-2 is, for example, a refrigeration device for generating a cold flow
- the regeneration device of the regeneration section 14 can regenerate the heat flow and Cold flow.
- the current and heat flow generated by the power generating unit, the cold flow generated by the refrigeration unit, and the heat and cold currents regenerated by the regeneration unit can be supplied to the storage unit 12 and the terminal unit of the application section 13 for use.
- each link also includes autonomous control implementation units l la, l ib, 14a, 12a and
- the internal communication channel can be selected based on the terminal function and the working environment, etc., in which power consumption, real-time performance, networking mode, engineering convenience, communication distance, and versatility are comprehensively considered. Available communication methods are -
- Bus mode wired connection.
- Support system dynamic update communication distance is small.
- Serial communication such as 485
- WLAN mature regional networking mode, support network reconfiguration, low power consumption, maximum distance: 100 Meter, suitable for home/small workshops.
- the wireless committee's newly opened communication band the module technology is basically mature, the power consumption is smaller than Zigbee, and the transmission distance is close to ZigBee.
- FTTX Fiber-to-the-X (FTTx) fiber access
- FTTX Fiber-to-the-X (FTTx) fiber access
- EP0N Error passive optical network
- Compatibility with existing Ethernet; Convenient management, etc., is a relatively mature technology, but needs to update the transmission line, and increase the information transceiver equipment such as optical transceiver.
- 20-2 and 20-3 communicate bidirectionally with the upper local optimizer 30.
- the local area optimizer 30 of the local optimization layer implements information translation and forwarding.
- the network card interface has two modes: wireless or wired.
- the communication distance and network size are limited by the maturity of the Internet network.
- the wireless communication based on the public mobile communication network C PLMN: Publ ic Land Mobi le Network is suitable for an area where the wireless communication network is complete and the Internet network is not mature.
- the commonly used high-speed serial interface is directly connected to the host computer for high-speed data interaction.
- Other ways of connecting can also be achieved through some conversion ports, such as network cable / USB, PCI / USB interface board.
- the information exchange mode of the smart grid with the existing power network, the high frequency communication carrier, the so-called power line carrier (PL, C), is used in the transmission line for interactive information.
- Communication rate and networking mode are flexible, provided that Within the coverage of the smart grid.
- Fig. 6 is a flow chart schematically showing a control method of a system energy efficiency controller.
- the system energy efficiency controller 20 is the core network node of the general energy control layer, and is connected with the terminal equipment of the energy production 11, the storage 12, the application 13 and the regeneration 14 in the jurisdiction, and together constitutes the general energy control layer, and the other The aspect is connected to the upper local area optimizer 30 to implement interconnection between the ubiquitous network control layer and the local optimization layer.
- the control method of the system energy efficiency controller 20 is based on the four-step model of energy production, storage, application and regeneration, and realizes the control strategy of the general energy control layer.
- the system energy efficiency controller 20 builds/updates the four-ring model according to the preset time/event drive principle.
- the system energy efficiency controller 20 reads the decision information of the wide area control layer and the local area optimization layer from the upper layer local optimizer 30.
- the decision information read from the upper local optimizer 30 includes current status statistics and forecast information of wide-area energy usage, price trend and policy trend of energy supply, local energy supply and demand distribution information, and current system energy efficiency control. Operational guidance information for the four-terminal terminal equipment in the jurisdiction of the device 20.
- the system energy efficiency controller 20 collects sensor information of the terminal devices operating in the four stages of energy production 11, storage 12, application 13 and regeneration 14 in the jurisdiction.
- system energy efficiency controller 20 performs system optimization and energy efficiency gain according to the four-link model and the received decision information and sensor information, and generates control information of the terminal devices of the energy production 11, the storage 12, the application 13 and the regeneration 14 .
- the system energy efficiency controller 20 delivers control information to the terminal devices of the energy production 11, storage 12, application 13 and regeneration 14 links.
- system energy efficiency controller 20 determines whether it is a suitable time to report the operation information.
- a time-driven and event-driven hybrid drive mode can be used to determine if it is a suitable time to report operational information, including the following steps:
- the interrupt signal E0 is triggered, and the TO is cleared;
- the trigger condition Ci is defined for any device Di output, that is, if the operating condition of the device Di satisfies the condition Ci, an interrupt signal is triggered.
- the evaluation function is usually in an idle state. After the interrupt signal is obtained, the trigger information is reported, and the interrupt type is recorded.
- the system energy efficiency controller 20 and the local optimizer 30 and the wide area coordinator are all in an idle state.
- the wake-up timer interrupt or the task interrupt signal is triggered, the system energy-efficiency controller 20 and the local area optimizer 30 and the wide-area coordinator perform information reporting to implement state transition.
- a task interrupt can be composed of a plurality of sub-interrupts of different priorities.
- a low-priority task can be interrupted by a high-priority task interrupt during execution, and the interrupted scene is recorded, and can be automatically returned after the high-priority task is completed.
- the idle state is at the lowest priority, and the main task is to passively accept interrupts at all levels.
- the system energy efficiency controller 20 and the local optimizer 30, the wake-up clock and the task interrupt of the wide-area coordinator are respectively defined according to their respective operating parameters, and constitute respective independent hybrid-drive finite state machine FSMs.
- the system energy efficiency controller 20 reports the operation information to the local area optimizer 30 through the external communication channel of the general energy control layer, and the system energy efficiency controller 20 further determines whether it is a suitable system model. Update timing. If it is not appropriate to report the timing of the running information, it is directly judged whether it is a suitable system model update timing.
- the system operation information reported by the system energy efficiency controller 20 includes: the remaining capacity of the production equipment, the raw material demand, the energy production status (saturation, idle, overload); the smoothness of the circulation tool, the current status and space of the energy storage; the energy consumption of the energy-using equipment Quantity and quality requirements, demand satisfaction; residual heat, wastewater, pollution flue gas regeneration equipment operation: good, idle, overload warning.
- the system energy efficiency controller 20 re-establishes the eight-update four-link model and then repeats the subsequent steps described above. If it is not a suitable system model update opportunity, the system energy efficiency controller 20 reads the upper layer decision information and then repeats the subsequent steps described above.
- Fig. 7 is a flow chart schematically showing a control method of a terminal device of four stages of energy production 11, storage 12, application 13 and regeneration 14, for example, by the control implementation unit l la, l ib of each terminal device shown in Fig. 5. , 14a, 12a and 13a are executed.
- the implementation unit l la, l ib, 14a is controlled by the internal communication channel of the ubiquitous control layer.
- the 12a and 13a read the control information of the corresponding terminal device from the system energy efficiency controller 20.
- control implementing units l la, l ib, 14a, 12a and 13a collect the local sensing information and the running information of the corresponding terminal device, and temporarily store the collected information in the local memory.
- control implementing units l la, l ib, 14a, 12a and 13a control the operating parameters of the respective terminal devices based on the read control information. Further, the control implementing units 1 la, l lb, 14a, 12a, and 13a determine whether it is a suitable timing for reporting the operation information. This step is similar to the step performed by the system energy efficiency controller 20 to determine whether it is a suitable time to report the operational information, and therefore will not be described in detail.
- control implementation units l la, l ib, 14a, 12a and 13a report the system operation information to the system energy efficiency controller 20 through the internal communication channel of the general energy control layer, and further pass the pan The internal communication channel of the control layer reads control of new control information from the system energy efficiency controller 20, and then repeats the subsequent steps described above. If it is not appropriate to report the operation information timing, the control implementing units l la, l ib, 14a, 12a and 13a directly read and control the new control information from the system energy efficiency controller 20 through the internal communication channel of the general energy control layer, and then repeat The subsequent steps above.
- the running information that each terminal device needs to report may be different.
- the operational information that needs to be reported by the terminal equipment in the production process includes, for example, output power, output efficiency, energy quality, raw material consumption, remaining capacity, equipment operating status, and alarm information.
- the operational information that needs to be reported in the terminal equipment of the storage link includes, for example, circulation efficiency (time and cost required for completion of transportation by unit energy), idleness of logistics vehicles, remaining storage space, and equipment alarm information.
- the operational information that the terminal equipment needs to report in the application link includes, for example, the number of required cold, heat, and electricity, and environmental alarm information.
- the operation information that needs to be reported in the terminal equipment of the regeneration link includes, for example, waste heat recovery rate, wastewater treatment load, (0 2 recovery rate, equipment operation and alarm information, etc.).
- Fig. 8 is a view schematically showing a hardware block diagram of the system energy efficiency controller 20 for executing the control method shown in Fig. 6.
- the system energy efficiency controller 20 includes a control decision module 21, such as an ARM; a storage module 22, such as DDRAM, is coupled to the control decision module 21 for storing temporary and permanent information data during system operation; the power clock module 23,
- the control decision module 21 is connected to provide an internal clock, and realizes timing synchronization of multiple processors on the controller.
- the internal communication module 24 is configured to implement the system energy efficiency controller 20 and the control implementation unit of each terminal device.
- Two-way communication between ib, 14a, 12a, and 13a ie, internal communication of the general-purpose control layer
- an external communication module 25 for implementing bidirectional between the system energy-efficient controller 20 and the upper-level local optimizer 30 Communication (ie external communication of the ubiquitous control layer).
- the control decision module 21 is composed of, for example, an ARM processor, and is responsible for implementing the system optimization model, and has a real-time operating system such as Linux, ThreadX, and the like.
- the control decision module 21 processes the system operation information with a minimum clock cycle, and updates the control message under the timing/event drive according to the system model and delivers it to each controlled device in the jurisdiction.
- the internal communication module 24 can include ports for various communication schemes, such as M-BUS port 24 1 , RS 485 port 24 2, ZigBee port 24-3, 433 MHz port 24-4, and EP0N port 24-5 to implement ubiquitous energy.
- Control The internal communication channel of the layer is formed, through which the operation information of the control implementation units l la, l ib, 14a, 12a and 13a of the respective terminal devices are collected and the control information is sent thereto.
- the external communication module 25 can include ports of various communication schemes, such as an Ethernet port 25-1, a USB port 25-2, a GPRS/3G port 25-3, a PLC port 25-4, and an EP0N port 25-5, to implement
- the external communication channel of the ubiquitous control layer reports the subsystem operation information to the local controller 30 via the external communication channel, and obtains optimization information for the corresponding ubiquitous control layer from the local controller 30.
- the system energy efficiency controller 20 implements policy optimization and control commands through the firmware inside the processor. When the optimization strategy is updated or upgraded, only the version needs to be regenerated and burned without changing the device and hardware design. Strong adaptability.
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CN102467121B (zh) | 2015-12-02 |
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