CN102393690A - Combined cooling heating and power distributed control system based on internet of things - Google Patents
Combined cooling heating and power distributed control system based on internet of things Download PDFInfo
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- CN102393690A CN102393690A CN2011102938304A CN201110293830A CN102393690A CN 102393690 A CN102393690 A CN 102393690A CN 2011102938304 A CN2011102938304 A CN 2011102938304A CN 201110293830 A CN201110293830 A CN 201110293830A CN 102393690 A CN102393690 A CN 102393690A
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Abstract
The invention relates to a combined cooling heating and power distributed control system based on an internet of things. The system comprises a host computer, a security system and an energy-saving system. The security system and the energy-saving system are connected with the host computer through the internet of things; and the host computer connects the security system and the energy-saving system through a communication network; therefore, monitoring and operation control on the combined cooling heating and power distributed control system are realized and data storage is realized. The security system comprises an equipment state monitoring system, an energy island personnel management system and an accident protection system. Besides, the energy-saving system is composed of a personnel monitoring device of a load end, a load end parameter monitoring device, an environmental parameter monitoring device, a load prediction system, an operation control system and a cool storage system. According to the invention, a combined cooling heating and power distributed control system based on the internet of things is provided, wherein the system has advantages of distributed control, low operation cost, and high energy utilization rate.
Description
Technical field
The present invention relates to a kind of supply of cooling, heating and electrical powers Distributed Control System (DCS).
Background technology
Supply of cooling, heating and electrical powers is the solution of Integrated Energy cascade utilization, and total energy utilization rate can reach 75%～90%.It can combustion gas etc. clean energy resource as primary energy, electricity generation system and heat supply, cold supply system are combined, constitute on a small scale, near a kind of comprehensive energy supply station of the spot distribution user.The high-temperature tail gas that prime mover produces in the cooling heating and power generation system can utilize through waste heat recovery apparatus again, to user's heat supply or cooling, thereby satisfies the demand of user to heat, electricity, cold equal energy source.Cooling heating and power generation system both can make the user have an energy supply system of one's own, again can with city public electric wire net parallel running, system has relative independence, dirigibility and security.Prime mover in the cooling heating and power generation system can a platform independent operation, again can many parallel runnings, can satisfy the user's request of different electric power load.Divide confession formula energy resource system to compare with tradition, the cooling heating and power generation system compact conformation, in light weight, floor area is little, and is easy for installation, safeguards that simply, automaticity is high, and operating cost is low.
Distributed Control System (DCS) (Distributed control system) be with the microprocessor be the basis production run is concentrated the concentrated scattered control system of supervision, operation, management and decentralised control, abbreviation DCS system.This system disperses to be applied to process control with some microcomputers; Full detail is monitored by senior management computer through communication network; The control of realization optimization; Whole device has been inherited conventional instrument decentralised control and the central controlled advantage of computing machine, has overcome the conventional instrument function singleness, the shortcoming of man-machine commission's difference and the dangerous high concentration of separate unit microcomputer control system; Both realized management, operate and show three aspect concentrate, realized the dispersion aspect function, load and dangerous three again.
The management system of cooling heating and power generation system is more open, original at present, is mostly simple programmed control, needs the personnel scene on duty, and has certain production safety hidden danger.In addition, there is not the accurately actual load changes in demand of follow load end, the primary energy wasting phenomenon that ubiquity is bigger in its operation control.
Summary of the invention
For the deficiency that the management system that overcomes existing cooling heating and power generation system is relatively disperseed, operating cost is high, energy utilization rate is lower, the present invention provides a kind of collecting and distributing control, operating cost is lower, energy utilization rate the is high supply of cooling, heating and electrical powers Distributed Control System (DCS) based on Internet of Things.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of supply of cooling, heating and electrical powers Distributed Control System (DCS) based on Internet of Things includes host computer, security system and energy conserving system; Said security system all is connected with said host computer through Internet of Things with energy conserving system, and host computer is connected with energy conserving system security system through communication network, accomplishes the monitoring of cooling heating and power generation system and the storage of operation control and realization data;
Said security system comprises device status monitoring system, energy island personnel management system and unexpected guard system; The device status monitoring system comprises the operation monitoring device to generator, air-conditioning unit and utility appliance, and to the supervising device of the state of circuit and communication network; Said energy island personal management comprises radio-frequency card, radio frequency gate terminal, interval, rfid interrogator and infrared monitor control system; Said unexpected protection comprises smoke transducer, fuel leak sensors, fire nozzle and acoustooptic alarm system;
Said energy conserving system comprises personnel control's device, load end parameter monitoring device, environmental parameter supervising device, load prediction system, operation control system and the cold accumulation system of load end.
Further; In the said energy island personnel management system, dividing region is carried out according to function in the monitoring area, determine personnel and authority that each is regional; In energy island gateway and operating table surface the radio frequency entrance guard device is installed; The discrepancy personnel wear radio-frequency card its identity of identification and authority, according to identity and authority, and zone that the decision personnel can get into and the operation that can carry out.
Further again, in the said energy island personnel management system, for unidentified approaching personnel, behind the warning zone of the periphery that gets into energy island, the warning light alarm system sends the acousto-optic warning; For the unidentified personnel that still swarm into after the warning, acoustooptic alarm system gives the alarm.
Further; In the said energy-saving management system, the rfid interrogator through load end obtains personnel's distribution and quantity, through temperature, the humidity parameter of acquisition load end of the sensors such as temperature sensor in load end and the environment and environment; Then said parameter is transferred to the load prediction system through communication network; The load prediction system draws the following possible load of cooling heating and power generation system with the data input load prediction software that obtains, and selects the operating scheme of cooling heating and power generation system according to this load; Send control signal through communication network to cooling heating and power generation system again, the operation of adjustment equipment realizes user's comfortable and system energy-conservation.
At last, in the said energy-saving management system, utilize the peak load shifting effect of cold accumulation system; When the load of load end hour, unnecessary electric weight is driven the cold accumulation system refrigeration and stores cold, when the load end load is big; The cold accumulation system released cold quantity satisfies the demand of load end; Thereby reduce the capacity of refrigeration plant, and guarantee that prime mover is in oepration at full load, improve its operational efficiency and plant factor.
Technical conceive of the present invention is: Internet of Things is through information sensing equipment such as RF identification (RFID), infrared inductor, GPS, laser scanners; Agreement by agreement; Be connected any article with the internet; Carry out message exchange and communicate by letter, to realize a kind of network intellectuality identification, location, tracking, monitoring and the management of article.Communication network through Internet of Things is connected to host computer with the security system of cooling heating and power generation system and the energy conserving system of cooling heating and power generation system; Integrated management through host computer; Can not only monitor the ruuning situation of cooling heating and power generation system equipment in real time; Can also realize personnel's management and monitoring, and the operation that equipment is adjusted in the load monitoring through load side and prediction is to realize the energy-conservation of cooling heating and power generation system.
Beneficial effect of the present invention mainly shows: collecting and distributing control, operating cost is lower, energy utilization rate is high, has realized the function of security, and has brought into play the advantage of carrying out information interchange between Internet of Things thing and the thing.
Description of drawings
Fig. 1 is based on the theory diagram of the supply of cooling, heating and electrical powers Distributed Control System (DCS) of Internet of Things.
Fig. 2 is the structured flowchart of supply of cooling, heating and electrical powers Distributed Control System (DCS).
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
See figures.1.and.2, a kind of supply of cooling, heating and electrical powers Distributed Control System (DCS) based on Internet of Things includes the security system of host computer, cooling heating and power generation system and the energy conserving system of cooling heating and power generation system.The security system of the energy island of cooling heating and power generation system comprises the device status monitoring system, and energy island personnel management system and unexpected guard system all pass through communication network and be connected with host computer.The energy conserving system of cooling heating and power generation system comprises the personnel control of load side, the load end parameter monitoring, and the environmental parameter monitoring, the operation control system of load prediction system and cooling heating and power generation system all passes through communication network and is connected with host computer.Host computer is connected with the security system of cooling heating and power generation system and the energy conserving system of cooling heating and power generation system through communication network, it is kept watch on and controls, and accomplish the storage of data.The device status monitoring system comprises generator, the air-conditioning unit, and the operation monitoring of utility appliance, and to the monitoring of the state of circuit and communication network guaranteeing the normal operation of equipment, and reaches optimum condition.The energy island personal management comprises radio-frequency card, radio frequency gate terminal, interval, and rfid interrogator, the infrared monitor control system, acoustooptic alarm system is to realize energy island personal management and antitheft.It is unexpected that protection comprise smoke transducer, fuel leak sensors, and fire nozzle, acoustooptic alarm system is realized fire prevention and anti-leak.Administration of energy conservation comprises temperature sensor, humidity sensor, and radio-frequency card, rfid interrogator, radio frequency gate terminal, interval, equipment such as infrared monitor control system are energy-conservation to realize.
With reference to Fig. 1; Host computer is through wireline communication network and device status monitoring system based on Internet of Things, energy island personnel management system, unexpected guard system; The personnel control of load side; The load end parameter monitoring, the environmental parameter monitoring, the load prediction system is connected with the cooling heating and power generation system operation control system.
In the device status monitoring system; Host computer docks through communication network and the existing control system of equipment; The operational factor of fetch equipment, and transmit control signal through the existing control system of equipment according to the controlling schemes of operational factor with reference to correspondence, realize the safety and steady operation of equipment.
In the energy island personnel management system, dividing region is carried out according to function in the monitoring area, determine personnel and authority that it is corresponding.In energy island gateway and operating table surface the radio frequency entrance guard device is installed, the discrepancy personnel wear radio-frequency card its identity of identification and authority, according to identity and authority, determine its zone that can get into and the operation that can carry out.For unidentified approaching personnel, behind the warning zone of the periphery that gets into energy island, the warning light alarm system sends the acousto-optic warning.For the unidentified personnel that still swarm into after the warning, acoustooptic alarm system gives the alarm.
In the unexpected guard system,, smoke transducer takes place if having detected fire, the fire nozzle automatic water jetting, and acoustooptic alarm system gives the alarm.The fuel losses sensor is to there being fuel leak, and acoustooptic alarm system gives the alarm, and reminds the staff to take measures to eliminate dangerous situation.
In the energy-saving management system of cooling heating and power generation system; Obtain personnel's distribution and quantity through the rfid interrogator of load end; Obtain the parameters such as temperature, humidity of load end and environment through sensors such as the temperature sensors in load end and the environment; Then these parameters are transferred to the load prediction system through communication network; The load prediction system draws the following possible load of cooling heating and power generation system with the data input load prediction software that obtains, and selects the operating scheme of suitable cooling heating and power generation system according to this load; Send control signal through communication network to cooling heating and power generation system again, the operation of adjusting each equipment realizes user's comfortable and system energy-conservation.
In the energy-saving management system of cooling heating and power generation system, utilize the peak load shifting effect of cold accumulation system, when the load of load end (zone) hour; Unnecessary electric weight is driven the cold accumulation system refrigeration and stores cold; When load end (zone) load was big, the cold accumulation system released cold quantity satisfied the demand in load end (zone), thereby reduces the capacity of refrigeration plant; And guarantee that prime mover is in oepration at full load, improve its operational efficiency and plant factor.
With reference to Fig. 2, the supply of cooling, heating and electrical powers Distributed Control System (DCS) comprises the dispersion process controlled stage, centralized operation monitoring level and this three-decker of generalized information management level.The dispersion process controlled stage, the centralized operation monitoring level all is connected through the communication network based on technology of Internet of things with the generalized information management level.The dispersion process controlled stage comprises several field control stations and several field monitoring stations.The centralized operation monitoring level comprises operator's active station, slip-stick artist's active station, supervisory control comuter and gateway.The generalized information management level comprises host computer and gateway.
In the dispersion process controlled stage, comprise several field control stations and several field monitoring stations.Realize the adjusting of production technologies by several field control stations, such as the switching adjusting of valve, sequential control, stepless control or the like.By the monitoring of the non-control variable of several field monitoring station implementation procedures, the non-control variable of process is carried out data acquisition and pre-service, and, send centralized operation monitoring level and host computer then to and carry out control decision the further processed of real time data.
In the centralized operation monitoring level, comprise operator's active station of oriented manipulation personnel, towards supervision and management personnel's slip-stick artist's active station, supervisory control comuter and gateway.The centralized operation monitoring level is main task with the operation monitoring: the information centralization of procedure parameter; Data to each field control station are collected; And, carry out the demonstration of the demonstration of quantities, various process charts, the demonstration and the change procedure parameter (like information such as setting value, controlled variable, alarm condition) of trend curve through shirtsleeve operation; Another task is to have the part management function concurrently: carry out the configuration and the generation of control system.Gateway is realized interconnected between centralized operation monitoring level and the superior and the subordinate's network.
The generalized information management level comprises host computer and gateway.System-wide all information are managed in each unit of host computer comprehensive monitoring system.This is the maximum layer of Distributed Control System (DCS), and its authority is very big, can keep watch on the ruuning situation of all departments, utilizes historical data and real time data to predict contingent various situation, helps managerial personnel to make a strategic decision.Realize the interconnected of generalized information management level and undernet through gateway, and realize the interconnected of generalized information management level and external network, thereby reach the function of telemanagement and control.
For security and the reliability that improves Distributed Control System (DCS); Adopt Hot Spare system redundancy just; Some key modules or network have one or more backups in design in system; When the part of present work went wrong, system can automatically switch in the backup through special software or hardware, thereby had guaranteed system's non-stop run.
Claims (5)
1. supply of cooling, heating and electrical powers Distributed Control System (DCS) based on Internet of Things, it is characterized in that: said supply of cooling, heating and electrical powers control system includes host computer, security system and energy conserving system; Said security system all is connected with said host computer through Internet of Things with energy conserving system, and host computer is connected with energy conserving system security system through communication network, accomplishes the monitoring of cooling heating and power generation system and the storage of operation control and realization data;
Said security system comprises device status monitoring system, energy island personnel management system and unexpected guard system; The device status monitoring system comprises the operation monitoring device to generator, air-conditioning unit and utility appliance, and to the supervising device of the state of circuit and communication network; Said energy island personal management comprises radio-frequency card, radio frequency gate terminal, interval, rfid interrogator and infrared monitor control system; Said unexpected protection comprises smoke transducer, fuel leak sensors, fire nozzle and acoustooptic alarm system;
Said energy conserving system comprises personnel control's device, load end air parameter supervising device, environmental parameter supervising device, load prediction system, operation control system and the cold accumulation system of load end.
2. the supply of cooling, heating and electrical powers Distributed Control System (DCS) based on Internet of Things as claimed in claim 1; It is characterized in that: in the said energy island personnel management system, dividing region is carried out according to function in the monitoring area, determine personnel and authority that each is regional; In energy island gateway and operating table surface the radio frequency entrance guard device is installed; The discrepancy personnel wear radio-frequency card its identity of identification and authority, according to identity and authority, and zone that the decision personnel can get into and the operation that can carry out.
3. the supply of cooling, heating and electrical powers Distributed Control System (DCS) based on Internet of Things as claimed in claim 2; It is characterized in that: in the said energy island personnel management system; For unidentified approaching personnel, behind the warning zone of the periphery that gets into energy island, the warning light alarm system sends the acousto-optic warning; For the unidentified personnel that still swarm into after the warning, acoustooptic alarm system gives the alarm.
4. like the described supply of cooling, heating and electrical powers Distributed Control System (DCS) of one of claim 1～3 based on Internet of Things; It is characterized in that: in the said energy-saving management system; Obtain personnel's distribution and quantity through the rfid interrogator of load end; Temperature, humidity parameter through acquisition load end of the sensors such as temperature sensor in load end and the environment and environment are transferred to the load prediction system with said parameter through communication network then, and the load prediction system is with the data input load prediction software that obtains; Draw the following possible load of cooling heating and power generation system; Select the operating scheme of cooling heating and power generation system according to this load, send control signal through communication network to cooling heating and power generation system again, the operation of adjusting each equipment realizes user's comfortable and system energy-conservation.
5. like the described supply of cooling, heating and electrical powers Distributed Control System (DCS) framework of one of claim 1～3 based on Internet of Things; It is characterized in that: in the said energy-saving management system; When the load of load end hour; Unnecessary electric weight is driven the cold accumulation system refrigeration and stores cold, and when the load end load was big, the cold accumulation system released cold quantity satisfied the demand of load end.
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| CN105487478A (en) * | 2016-01-19 | 2016-04-13 | 山东大学 | Monitoring platform suitable for combined cooling heating and power system and working method thereof |
| CN107748495A (en) * | 2017-09-18 | 2018-03-02 | 同济大学 | A kind of Optimal Configuration Method of distributed triple-generation and heat pump combined system |
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Cited By (9)
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| CN103236102A (en) * | 2013-05-02 | 2013-08-07 | 上海永天科技股份有限公司 | Intelligent building energy management system based on technology of internet of things |
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| CN105487478A (en) * | 2016-01-19 | 2016-04-13 | 山东大学 | Monitoring platform suitable for combined cooling heating and power system and working method thereof |
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| CN107748495A (en) * | 2017-09-18 | 2018-03-02 | 同济大学 | A kind of Optimal Configuration Method of distributed triple-generation and heat pump combined system |
| CN107748495B (en) * | 2017-09-18 | 2021-02-02 | 同济大学 | Optimal configuration method of distributed combined cooling heating and power generation and heat pump combined system |
| CN108253577A (en) * | 2017-12-26 | 2018-07-06 | 珠海格力电器股份有限公司 | Air-conditioner set electric power system and for cooling method |
| CN111045330A (en) * | 2019-12-23 | 2020-04-21 | 南方电网科学研究院有限责任公司 | Attack identification method based on Elman neural network and grid-connected interface device |
| CN111045330B (en) * | 2019-12-23 | 2020-12-29 | 南方电网科学研究院有限责任公司 | Attack identification method based on Elman neural network and grid-connected interface device |
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Effective date of registration: 20190125 Address after: 310051 Room 1106, 11th Floor, 300 Lianhui Street, Xixing Street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou pumping energy saving Technology Co Ltd Address before: Hangzhou City, Zhejiang province 310014 City Zhaohui District Six Patentee before: Zhejiang University of Technology |