WO2013152503A1

WO2013152503A1 - Distributed control system for building ecology

Info

Publication number: WO2013152503A1
Application number: PCT/CN2012/074001
Authority: WO
Inventors: 钱伟民
Original assignee: 北京聚天华节能科技发展有限公司
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2013-10-17

Abstract

Disclosed is an intelligent distributed control system for implementing power-saving running of a heating and air-conditioning system device in a modern building. The whole distributed control system comprises two-stage control loops, namely, a central control loop and a regional control loop. A central control cabinet sends a control instruction to a central air-conditioning device through a master bus, so as to form the central control loop. A regional controller in each region adjusts, through a correspondingly connected communication repeater, the working state of a terminal air-conditioning execution device by using multiple regional control instructions output from an executor bus, so as to form the regional control loop. This system product can implement, through multi-point exchange running control between users and the building, systematic adjustment of power-saving running such as dynamic time and region division control of heating and air-conditioning loads for the building, low power consumption in an unattended area, frequency conversion running of the central air-conditioning device, and system climate compensation response.

Description

Building ecological partial control system

Technical field

The invention patent belongs to the design and development of the building energy supply transmission and distribution control system equipment. It mainly involves central control equipment, regional control equipment and end heating and air conditioning execution equipment in the heating and air conditioning equipment operation control system.

Background technique

In today's society, the sustainable development of human civilization faces many major threats. The most threatening one is that the disorderly development of the city will inevitably lead to excessive growth of energy consumption, especially the complex large-scale building functions become more and more complex, indoor electric lights. The telephone can no longer meet the needs of people's work and life. Elevators, communication rooms, night lighting, water supply and sewage discharge consume far more energy than the original basic lighting, and the greater energy consumption lies in the summer air conditioning of the building. Energy consumption in winter heating in the north. And the higher the overall building, the more serious the overall energy consumption. Whether it is a large-scale comprehensive building or a small and medium-sized multi-purpose building, it is a complex and diversified to meet the diversified needs of human settlement, office, sports and entertainment in a modern society while maximizing the energy consumption of buildings. Puzzle.

First of all, people's activities are dynamic, especially in the busy modern social life, where everyone travels between different places every day instead of staying in a room or a corner of a building. The building is A platform for human life, but it is by no means our prison. Therefore, building energy consumption will also change according to the needs of human settlements. However, modern building energy management is still extensive, among which the largest energy-consuming household in the building--heating and air-conditioning system lacks humanized regional control and adjustment measures, no matter whether there is anyone in the room, as long as it is winter, it is persevering heating, as long as it is In the summer, I will tirelessly blow the cold wind. The energy consumption is staggering, but everyone can say that there is nothing to do.

Secondly, modern intelligent buildings do not realize the full interaction between the building main body and the building itself. Many humanized needs are neglected by the system. Can everyone in the building understand and control the energy consumption system of the building? The building is intelligent, and we still can't distinguish between east and west in high-rise buildings.

The building ecological sub-control system came into being. This system product can realize the building heating through the central control cabinet and the partition controller located in various areas of the building, with the central and regional two-level interactive cloud computing as the control infrastructure, through the multi-point interactive operation control between the user and the building. And the dynamic time-sharing division adjustment of the air-conditioning load fully meets the energy consumption requirements of the heating and air-conditioning of users in various areas of the building, while maximally saving the energy consumption of the central cold heat source system and the terminal air-conditioning execution equipment.

Summary of the invention

The building ecological segmental control system described in the patent of the present invention is a building intelligent heating and air conditioning energy-saving operation sub-section control system developed for the above purpose.

The system consists of central air conditioning equipment, central control cabinet, communication line, communication repeater, zone controller, sensor and various air conditioning executive equipment. It is characterized by central air conditioning equipment 1 through the main control communication bus 2 Connected to the central control cabinet 3, the central control cabinet 3 is connected to the A port of the communication repeater 4 of each partition through the group control communication bus 5, and the B of each communication repeater 4 The port is connected to the partition controller 6 in the same building partition, and the C port is connected to the actuator bus 9 formed by paralleling various air conditioning executing devices 7 in the same building partition, and the sensors of each building partition are connected. 8 It can be built in each partition controller. 6 It can also be installed in the building partition independently and transmit information to the partition controller 6 in this area by wireless communication.

The central control cabinet 3 is the connection and control hub of the main control communication bus and the group control communication bus, and the main control communication bus will be the central control cabinet 3 and the central air conditioning equipment 1 Connected to realize real-time monitoring and operation adjustment of multiple central air-conditioning equipment by the central control system; group control communication bus will connect the central control cabinet 3 with multiple partition communication repeaters 4 Connected to realize real-time control information exchange between the central control system and each partition control system.

Each communication repeater 4 is connected to the partition controller 6 in the same building partition one by one, and the communication repeater 4 It is a communication interface integration device for a specific group control system of each building partition, and the partition controller 6 is a regional control interaction interface corresponding to each communication relay device 4.

Various air conditioning actuators in the same building sector 7 Including electric valve parts on the partition waterway, fan coil new fan unit and electric damper in air conditioning air system, etc., their execution control lines are divided into one or more execution circuits according to functional requirements, and then connected to execute Bus On the 9th, each control execution circuit has a one-to-one correspondence with the independent control output nodes in the C port on the communication repeater 4 in the same partition.

Sensors in each building sector 8 Including temperature sensor, humidity sensor and infrared sensor, these sensors can be built in the partition controller according to the function requirements, or can be installed in a certain location in the building area, and the partition controller of this area 6 Information is transmitted via wireless communication.

The overall intelligent control system is divided into a central control level and a group control level. The two-level control system has its own independent control functions, and communicates through the group control network to realize the central control cabinet. 3 Two-level interactive cloud computing mode operation control coordination for the core central control system and the group control system composed of each partition controller 6.

Partition controller 6 As an independent control unit of independent building division, it has a complete user interaction control interface of the building ecosystem, and can independently realize the control tasks of the heating and air conditioning execution equipment of the building partition according to the user input instructions, but in order to realize the operation of the overall building heating and air conditioning system For energy-saving distribution, each zone controller also needs to have the function of participating in two-level interactive cloud computing through the group control communication network.

The core foundation of system control--two-level interactive cloud computing consists of a central control system with a central control cabinet 3 as the core and a controller for each partition. The group control system is jointly involved in the coordinated implementation. The central control system initializes the central control boundary conditions of the cloud computing according to the central control command and the central control operation energy saving strategy. Set the group control level boundary conditions according to the user instructions and regional energy-saving operation strategies in this area, and perform local calculation on the operation start-stop parameters of each air-conditioning equipment in this area, and then transfer the operation results to other partition controllers 6 and Control cabinet 3 To participate in the cloud computing comparison, when the cloud computing results do not meet the requirements of each boundary condition, the system partition controllers re-calculate the local calculation according to the deviation value, and reset the operation start-stop parameters of each air-conditioning device in the area, and then transmit to other Partition controller 6 and central control cabinet 3 In order to participate in cloud computing comparison, the central control system adjusts the initialization parameters of the cloud control's central control boundary conditions according to the central control command and the central control operation energy saving strategy and substitutes them into the cloud computing comparison until the cloud computing results fully meet all boundary conditions.

The beneficial effect of the invention patent is the building ecological partial control system Through the central control cabinet and the partition controller located in various areas of the building, the two-level interactive cloud computing realized by the central control system and the group control system is used as the control infrastructure, and the multi-point interactive operation control between the user and the building is performed. Realize the dynamic time-sharing division of building heating and air-conditioning load, the low-power duty of the unmanned area, the variable frequency operation of the central air-conditioning equipment, and the systematic adjustment of energy-saving operation such as system climate compensation response. Each user can input the opening, closing and strong, medium and weak control commands of the ecological environment adjustment items such as heating, cooling, fresh air and humidification through the partition controller according to their actual needs. The partition controllers and the central control cabinet pass the group. Control communication for two-level interactive cloud computing, and thus the results of the coordinated execution of the execution equipment at the end of each area and the best energy-saving operation results of the central air-conditioning equipment. While fully satisfying the energy consumption requirements of heating and air conditioning for users in various areas of the building, the operating energy consumption of the central cold heat source system and the terminal air conditioning execution equipment can be saved to the utmost.

DRAWINGS

Figure 1 is a structural diagram of the building ecological sub-control system;

1. Central air-conditioning equipment 2. Main control communication bus 3. Central control cabinet 4. Communication repeater 5. Group control communication bus 6. Partition Controller 7. Air Conditioning Execution Device 8. Sensor 9. Actuator Bus

detailed description

In order to fully reflect the comprehensive energy-saving operation effect of the system, we can analyze the operation plan of the system in the actual application process with the following drawings.

The basic design of the patent of the present invention is that the entire partial control system includes a two-stage control loop of central control and zone control. The central control cabinet outputs control commands to the central air-conditioning equipment through the main control bus, thereby forming a central control loop; the zone controllers of each area are adjusted by the output of the multi-way zone control command by the actuator bus through the corresponding communication repeater connected thereto. The working state of the terminal air conditioning equipment (including the fan coil, the hot air curtain, the exhaust fan, the combined air conditioner, the new fan group and the humidifier, etc.), thereby forming a zone control loop. The central control cabinet realizes data interaction with each partition controller through the group control bus, thereby forming a two-level intelligent group control network system.

The central control cabinet can calculate the overall heating and air conditioning load of the building in one operating cycle according to the operating parameters of each zone controller, and adjust the operating output power of the central air conditioning equipment according to outdoor weather conditions, total heating and air conditioning load and central air conditioning energy saving operation strategy. For the operation of a single central air-conditioning main system, the host should be considered intermittently. For the system of multiple central air-conditioning mainframes, each host should be considered to start the continuous operation in stages. At the same time, the circulating pumps of the air-conditioning systems of each air-conditioning system are also started according to the operation of the main engine. Or variable frequency control. Under the premise of ensuring the total heating and air conditioning of the building, the excess operation output of the air conditioner host should be minimized to achieve the purpose of energy saving.

Each zone controller has an independent heating and air conditioning operation control program and a complete user interaction control interface. Users can input heating, cooling, fresh air, humidification and other operational commands through the control interface according to their own humanized requirements, and can also adjust the standard control parameters of the indoor temperature. The partition controller can perform the calculation of the local heating and air conditioning terminal equipment operation according to the instructions input by the user, the setting parameters, and the measured parameters of the temperature and humidity sensors on the controller, and then the running time of each execution output node in the area in the running cycle, The calculation results such as startup time are transmitted from the group control communication bus to other partition controllers and the central control system, and further two-stage interactive cloud computing is performed. In the cloud computing process, the central control system initializes the central control boundary conditions of the cloud computing according to the central control command and the central control operation energy saving strategy, and each partition controller sets the group control level according to the user instruction of the area and the regional energy saving operation strategy. Boundary conditions, and local calculation of the start and stop parameters of each air-conditioning equipment in this area, and then transfer the operation results to other partition controllers and central control cabinets to participate in cloud computing comparison, each controller according to its own unique address The codes are distinguished from each other, and the cloud computing results are sent back to the partition controllers according to the address codes. The partition controllers then perform correction calculations based on the group control cloud calculation results and the initial local calculation results, and the cloud computing results do not meet the requirements of each boundary condition. At the same time, each partition controller of the system recalculates the local calculation according to the deviation value, and resets the operation start and stop parameters of each air conditioner in this area, and then transmits it to other partition controllers and the central control cabinet to re-engage in the cloud computing comparison, and at the same time The control system adjusts the initialization of the central control boundary condition of the cloud computing according to the central control command and the energy-saving strategy of the central control operation. And substituting the number of cloud comparison result until the cloud fully compliant with all boundary conditions. The results of the execution will eventually be transferred to the central control cabinet, and the operational statistics will be calculated by the central control cabinet. At the same time, the central control cabinet will also transmit the central control external information such as the host running status, fault alarm, outdoor temperature and wind speed to each partition controller as a calculation reference. This completes a complete central and regional dual-level interactive cloud computing.

The central control cabinet adjusts the operating output power and running time of the central air-conditioning equipment according to the final confirmed operational statistics calculation results. Each zone controller adjusts the end air conditioning equipment such as fan coils, hot air curtains, exhaust fans, combined air conditioners, new air blowers and humidifiers in the area according to the execution results of the group control cloud calculation and the electronically controlled valve parts in the circulating waterway. Run time and start time.

Each time a new operating cycle begins, the partition controller parameters change and the controller enters external commands by the user, each partition controller and central control cabinet must re-execute a two-level interactive cloud computing. However, in order to prevent excessive input of unnecessary user instructions and consume a large amount of cloud computing resources, the time interval of user instructions input on the same partition controller must be greater than 5 minutes, multiple intervals less than 5 Only the last user instruction of a minute is regarded as a valid instruction, and as a basis for calculation, the previous instruction is regarded as an invalid instruction. Each time the calculation result of the cloud calculation is compared and corrected based on the existing execution result, when the correction result is smaller than the current execution result, the actuator stops, and when the correction result is larger than the current execution result, the actuator runs the delay.

Each zone controller has a built-in independent energy-saving running program, and the user command and energy-saving running program alternately run according to the running time and priority. In normal mode, user commands take precedence over energy-saving programs, but heating, fresh air, and humidification last for only one run cycle. At the beginning of the next cycle, the zone controller automatically switches from heating to mid-range heating, while fresh air and humidification stop. Heating mid-range and air conditioning are sustainable 4 operating cycles. In a control area greater than 4 Under the condition that there is no user command input in the running cycle, the local partition controller judges that there is no user in the area. Then, the zone controller automatically switches to the energy-saving mode. During the air-conditioning season, the energy-saving mode is cooling and the fresh air is completely shut down. In the heating season, the energy-saving mode is to maintain only the basic antifreeze temperature inside the building area (generally The operating mode of 10 °C), while the fresh air and humidification are completely stopped, that is, the heating is weak. When the user goes out, he can also actively switch to the heating system through the zone control interface.

The partition controller can also be preset according to special operation requirements or according to the user's living rules in the building. The hour serializes the program and causes the controller to work in the preset mode. In this way, there is no special case, the partition controller can change the heating and air conditioning operating state of the area according to the preset procedure of the user, or continue working in the working conditions of strong, medium and fresh wind for a long time until the user inputs the correct unlocking. The command can be restored from the preset mode to the normal mode.

In order to meet the diverse needs of building users, each zone controller can also be freely grouped. The zone controllers in each group can be set as the master controller and the slave controller to achieve consistent operation in multiple regions. However, the group policy that determines the linkage relationship of each partition controller is only that the central control cabinet has authority to make or modify, and each partition controller does not have the group policy modification authority.

For inter-regional air-conditioning execution equipment such as large-scale new wind turbines, the master-slave distribution working mode of each zone controller can be used to jointly manage its operation. The inter-area air-conditioning execution equipment is directly controlled by the primary zone controller, and the slave zone controller can also be based on This area needs to issue a demand instruction to the primary partition controller and control its operation through the primary partition controller. The central control cabinet compiles the wireless remote commands into internal commands and sends them to the central air conditioning system or to each building partition.

The building ecological segmental control system can realize control docking through the central control cabinet and the wireless communication network, and the wireless communication device can send wireless remote commands to the control cabinet of the system. After the password is confirmed, the central control cabinet compiles the wireless remote command into an internal command and sends it to the central air conditioning system or each building partition.

Claims

The building ecological sub-control system consists of central air-conditioning equipment, central control cabinets, communication lines, communication repeaters, zone controllers, sensors and various air-conditioning execution equipment, characterized by central air-conditioning equipment ( 1) Connected to the central control cabinet (3) through the main control communication bus (2), and then the central control cabinet (3) passes through the group control communication bus (5) and the communication repeater (4) of each partition. The ports are connected, and the B port of each communication repeater (4) is connected one-to-one with the zone controllers (6) in the same building zone, and the C port and various air conditioning execution devices in the same building zone (7) The actuator bus (9) connected in parallel is connected, and the sensors (8) of each building partition can be built in each partition controller (6) It can also be installed independently in the building partition and transmit information to the zone controller (6) of the zone via wireless communication.
The building ecological sub-control system according to claim 1, characterized in that the central control cabinet (3) ) is the connection and control hub of the master communication bus and the group control communication bus, the main control communication bus will be the central control cabinet ( 3 ) and the central air conditioning equipment ( 1 Connected to realize the real-time monitoring and operation adjustment of the central control system to multiple central air-conditioning equipment; the group control communication bus will be the central control cabinet (

3) Communication repeater with multiple partitions ( 4 Connected to realize the real-time control information exchange of the central control system to each partition control system.
The building ecological segmentation control system of claim 1 wherein each communication repeater (4) is associated with a zone controller in the same building zone ( 6) One-to-one correspondence, the communication repeater (4) is the communication interface integration device of the specific group control system of each building partition, and the partition controller (6) is connected with each communication repeater (4) ) One-to-one corresponding regional control interaction interface.
The building ecological segmentation control system according to claim 1, characterized by various air conditioning execution devices in the same building partition (7) ) including electric valve parts on the partition waterway, fan coil new fan unit and electric damper in air conditioning air system, etc. Their execution control lines are divided into one or more execution circuits according to functional requirements, and then connected to the summary Actuator bus 9) Each control execution circuit has a one-to-one correspondence with independent control output nodes in the C port on the communication repeater (4) in the same partition.
The building ecological segmentation control system of claim 1 wherein the sensors in each building zone (8) ) It includes temperature sensor, humidity sensor and infrared sensor. These sensors can be built in the partition controller according to the function requirements. They can also be installed in a certain location in the building area and with the partition controller of this area ( 6 ) Transfer information by wireless communication.
According to claim 1 or 2 The building ecological segmentation control system is characterized in that the overall intelligent control system is divided into a central control level and a group control level, and the two-level control system has independent control functions, and communicates through the group control network to achieve central control. Cabinet ( 3 The operation control coordination of the two-level interactive cloud computing mode of the core central control system and the group control system composed of the partition controllers (6).
The building ecological sub-control system according to claim 1 or 3, characterized by a partition controller (6) As an independent control unit of independent building division, it has a complete user interaction control interface of the building ecosystem, and can independently realize the control tasks of the heating and air conditioning execution equipment of the building partition according to the user input instructions, but in order to realize the overall building heating and air conditioning system To run energy-saving allocation, each partition controller also needs to have the function of participating in two-level interactive cloud computing through the group control communication network.
According to claims 1, 6, 7 The building ecological segmental control system is characterized by a core foundation of system control--two-level interactive cloud computing is controlled by a central control system with a central control cabinet (3) as a core and by each partition controller (6) The group control system is jointly involved in the coordinated implementation. The central control system initializes the central control boundary conditions of the cloud computing according to the central control command and the central control operation energy-saving strategy. According to the user instructions in this area and the regional energy-saving operation strategy, set the group control level boundary conditions, and perform local calculation on the operation start-stop parameters of each air-conditioning equipment in this area, and then transfer the operation results to other partition controllers (6) ) and the central control cabinet (3 In order to participate in the cloud computing comparison, when the cloud computing results do not meet the requirements of each boundary condition, the system partition controllers re-calculate the local calculation according to the deviation value, and reset the operation start-stop parameters of each air-conditioning device in the area, and then transmit to Other partition controllers ( 6) and the central control cabinet (3 In order to participate in the cloud computing comparison, the central control system adjusts the initialization parameters of the central control boundary conditions of the cloud computing according to the central control command and the central control operation energy saving strategy and substitutes them into the cloud computing comparison until the cloud computing results fully meet all the boundary conditions. .