CN117350074A - Dynamic simulation device for cold and hot system, control method and storage medium - Google Patents
Dynamic simulation device for cold and hot system, control method and storage medium Download PDFInfo
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- CN117350074A CN117350074A CN202311414611.6A CN202311414611A CN117350074A CN 117350074 A CN117350074 A CN 117350074A CN 202311414611 A CN202311414611 A CN 202311414611A CN 117350074 A CN117350074 A CN 117350074A
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- 238000005094 computer simulation Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000003860 storage Methods 0.000 title claims description 64
- 230000004044 response Effects 0.000 claims abstract description 88
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000005338 heat storage Methods 0.000 claims description 111
- 230000001276 controlling effect Effects 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 238000009825 accumulation Methods 0.000 claims description 44
- 238000001816 cooling Methods 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 10
- 238000004088 simulation Methods 0.000 abstract description 6
- 238000005485 electric heating Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 230000003993 interaction Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010017472 Fumbling Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
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- 230000009123 feedback regulation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
- F25D31/005—Combined cooling and heating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Abstract
The invention discloses a dynamic simulation device of a cold and hot system and a control method, wherein the dynamic simulation device of the cold and hot system comprises the following components: a load adjuster; the load regulator repeatedly executes the equipment control flow with the aim that the difference value between the actual load curve and the planned load curve is smaller than a set threshold value until the optimal control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained; the equipment control flow comprises the following steps: acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve; and calculating control parameters of all the devices in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding devices according to the calculated control parameters of all the devices. The invention can realize the combined high-efficiency operation simulation of multiple devices under complex working conditions and realize the demand response by matching with the electric heating network signals.
Description
Technical Field
The invention belongs to the technical field of cold and hot systems, and particularly relates to a dynamic simulation device, a control method and a storage medium of a cold and hot system.
Background
The heat accumulating type electric heating/cooling is used for promoting energy conservation, emission reduction, treating air pollution and improving the utilization rate of the generator set. Because of the time delay of heat/cold in the transmission process, the types of cold and heat sources and cold and heat storage media are diversified, and the cold and heat storage media have the characteristics of easy failure or deterioration in supercooling and overheat states, and have higher requirements on system design and control methods under a multi-cold and heat source and multi-storage Leng Chure source system.
At present, the heat storage station still adopts a mode of combining on-site instrument display with manual debugging and fumbling for cold and heat supply operation under a multi-cold and heat source system, has low operation automation degree, lacks data support for operation control analysis under complex cold and heat sources and cold and heat storage equipment, and lacks support for automatic control operation data and operation control method for realizing signal interaction with a heat supply network or a power grid. Therefore, the dynamic simulation device suitable for the cold and hot systems is established and controlled, which is favorable for helping to realize the combined high-efficiency operation simulation of multiple devices under the complex working conditions of the park level and providing control strategy support for actual operation.
Disclosure of Invention
Aiming at the problems, the invention provides a dynamic simulation device, a control method and a storage medium of a cold and hot system, which can realize the combined high-efficiency operation simulation of multiple devices under complex working conditions and realize the demand response by matching with electric heating network signals.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a dynamic simulation device for a cooling and heating system, including: a load adjuster;
the load regulator repeatedly executes the equipment control flow with the aim that the difference value between the actual load curve and the planned load curve is smaller than a set threshold value until the optimal control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained;
the equipment control flow comprises the following steps:
acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve;
and calculating control parameters of all the devices in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding devices according to the calculated control parameters of all the devices.
Optionally, the primary side load response network comprises a heat source device, a cold source device, a heat storage device and a cold storage device which are connected through pipe network branches; the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
The heat source equipment and the cold source equipment are arranged in parallel;
the heat storage equipment and the cold storage equipment are arranged in parallel;
the heat source equipment is connected with the heat storage equipment through a pipeline, and a first heat meter is arranged between the heat source equipment and the heat storage equipment;
the cold source equipment is connected with the cold accumulation equipment through a pipeline, and a second calorimeter is arranged between the cold source equipment and the cold accumulation equipment;
a third calorimeter is arranged at the inlet or the outlet of the load equipment; and the inlets of the heat exchangers are respectively connected with the outlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment, and the outlets of the heat exchangers are respectively connected with the inlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment.
Optionally, when the power grid is in the valley period, the load regulator collects data of a third heat meter and draws an actual load curve; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat source device supplies heat to the load device and simultaneously controls the heat storage device to store heat; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a first heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat storage device releases heat and supplies heat to the load device in a combined way with the heat source device.
Optionally, when the power grid is in the valley period, the load regulator draws an actual load curve by collecting data of a third calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device and simultaneously controls the cold storage device to store cold; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold accumulation device releases cold energy, and the cold accumulation device and the cold source device are combined to supply cold to the load device.
Optionally, when the heat source device is used for supplying heat to the load device alone, the load regulator draws an actual load curve by collecting data of the third heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device supplies heat to the load device.
Optionally, when the cold source equipment is used for independently cooling the load equipment, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device.
Optionally, when the heat source equipment is utilized to store heat for the heat storage equipment, the load regulator draws an actual load curve by collecting data of the first heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device stores heat for the heat storage device.
Optionally, when cold source equipment is utilized to store cold for the cold and hot equipment, the load regulator draws an actual load curve by collecting data of the second calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of all relevant equipment in the primary side load response network and the secondary side load demand network, and controlling the corresponding equipment according to the calculated control parameters of all the equipment, so that the cold source equipment stores cold for the cold storage equipment.
Optionally, when the number of the heat source devices is greater than 1, the heat source devices are connected through a bypass pipeline;
when the number of the cold source devices is greater than 1, the cold source devices are connected through bypass pipelines.
Optionally, when the number of the heat storage devices is greater than 1, the heat storage devices are connected through a bypass pipeline:
when the number of the cold accumulation devices is more than 1, the heat accumulation devices are connected through bypass pipelines.
Optionally, the pipe network branch includes: valve V-4, first calorimeter, valve V-5, second calorimeter, valve V-8, valve V-9, regulating valve V-7, water pump P1, valve V-2, valve V-1, valve V-3, valve V-6;
the first ends of the valve V-4 and the valve V-5 are respectively connected with the outlets of the heat source equipment and the cold source equipment;
the first end of the valve V-8 is connected with the first end of the secondary side load demand network and the second ends of the valve V-4 and the valve V-5 respectively, and the second ends of the valve V-8 are connected with the connection points between the valve V-9 and the regulating valve V-7; the valve V-9 is also connected with the second end of the secondary side load demand network;
the regulating valve V-7 is also connected with the first end of the water pump P1, and the second end of the water pump P1 is respectively connected with the inlet ends of the heat storage equipment and the cold storage equipment and is also connected with the first end of the valve V-2;
The second end of the valve V-2 is respectively connected with the first ends of the valve V-6, the valve V-1 and the valve V-3 and is also respectively connected with inlets of the heat source equipment and the cold source equipment;
the second end of the valve V-6 is connected with the first end of the valve V-8;
the second end of the valve V-1 is connected with an outlet of the cold accumulation device;
the second end of the valve V-3 is connected with an outlet of the heat storage device;
the first heat meter is arranged at the outlet of the heat source equipment or at the inlet of the heat storage equipment;
the second heat meter is arranged at the outlet of the cold source equipment or at the inlet of the cold storage equipment.
Optionally, the secondary side load demand network includes load devices, an adjustable valve V10, a check valve V11, a water pump 3, a heat exchanger and a third heat meter;
the inlet of the load equipment is connected with the outlet of the heat exchanger;
the adjustable valve V10, the check valve V11 and the water pump 3 are arranged in series between the outlet of the load equipment and the inlet of the heat exchanger;
the third heat meter is arranged at the inlet and/or the outlet of the load equipment.
Optionally, the secondary side load demand network further comprises a water pump 2 and a check valve V12, one end of the water pump 2 and the check valve V12 are connected in series and then connected with an inlet of the load equipment, and the other end of the water pump 2 and the check valve V12 are respectively connected with the heat source equipment and the cold source equipment.
In a second aspect, the present invention provides a control method of a dynamic simulation device of a cooling and heating system, which is applied to a load regulator, and the control method includes:
and repeatedly executing the equipment control flow by taking the difference value between the actual load curve and the planned load curve as a target, until optimal control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained;
the equipment control flow comprises the following steps:
acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve;
and calculating control parameters of all the devices in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding devices according to the calculated control parameters of all the devices.
Optionally, the primary side load response network comprises a heat source device, a cold source device, a heat storage device and a cold storage device which are connected through pipe network branches; the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
the heat source equipment and the cold source equipment are arranged in parallel;
The heat storage equipment and the cold storage equipment are arranged in parallel;
the heat source equipment is connected with the heat storage equipment through a pipeline, and a first heat meter is arranged between the heat source equipment and the heat storage equipment;
the cold source equipment is connected with the cold accumulation equipment through a pipeline, and a second calorimeter is arranged between the cold source equipment and the cold accumulation equipment;
a third calorimeter is arranged at the inlet or the outlet of the load equipment; and the inlets of the heat exchangers are respectively connected with the outlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment, and the outlets of the heat exchangers are respectively connected with the inlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment.
Optionally, when the power grid is in the valley period, the load regulator collects data of a third heat meter and draws an actual load curve; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat source device supplies heat to the load device and simultaneously controls the heat storage device to store heat; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a first heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat storage device releases heat and supplies heat to the load device in a combined way with the heat source device.
Optionally, when the power grid is in the valley period, the load regulator draws an actual load curve by collecting data of a third calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device and simultaneously controls the cold storage device to store cold; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold accumulation device releases cold energy, and the cold accumulation device and the cold source device are combined to supply cold to the load device.
Optionally, when the heat source device is used for supplying heat to the load device alone, the load regulator draws an actual load curve by collecting data of the third heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device supplies heat to the load device.
Optionally, when the cold source equipment is used for independently cooling the load equipment, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device.
Optionally, when the heat source equipment is utilized to store heat for the heat storage equipment, the load regulator draws an actual load curve by collecting data of the first heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device stores heat for the heat storage device.
Optionally, when cold source equipment is utilized to store cold for the cold and hot equipment, the load regulator draws an actual load curve by collecting data of the second calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of all relevant equipment in the primary side load response network and the secondary side load demand network, and controlling the corresponding equipment according to the calculated control parameters of all the equipment, so that the cold source equipment stores cold for the cold storage equipment.
In a third aspect, the present invention provides a readable storage medium having stored therein a computer program for implementing the method of any of the second aspects when executed by a processor.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a mode of 'cold accumulation/heat + real-time cold and heat' collaborative supply, under the flexible simulation input of the load regulator, the state simulation under the complex cold and heat supply system is realized by the method of arranging the pump, the valve and the regulator in the pipeline, the invention has the characteristics of high complexity and diversified control modes, and has a certain guiding effect on the operation optimization of the complex cold and heat supply system of the park level by properly amplifying, the output result can be used as an important reference basis of the operation control strategy of the cold and heat supply system, the response degree of the cold and heat system to the power grid and the heat network is improved, and the comprehensive energy efficiency of the system is promoted.
Drawings
For a clearer description of an embodiment of the invention or of the solutions of the prior art, the drawings that are needed in the embodiment will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, in which:
FIG. 1 is a schematic diagram of a dynamic simulation device of a cooling and heating system according to an embodiment of the present invention;
fig. 2 is a block diagram of a dynamic simulation device of a cooling and heating system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Example 1
The embodiment of the invention provides a dynamic simulation device of a cold and hot system, as shown in fig. 1, comprising: a load adjuster;
the load regulator repeatedly executes the equipment control flow with the aim that the difference value between the actual load curve and the planned load curve is smaller than a set threshold value until the control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained; in a specific implementation, the planned load curve is directly input into the load regulator; in the implementation process, the target is that the difference value between the actual load curve and the planned load curve is smaller than a set threshold value, and the deviation between the actual load output temperature and the planned temperature value can be specifically set to be within +/-1 ℃;
the equipment control flow comprises the following steps:
acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve;
based on the difference value between the actual load curve and the planned load curve, the control parameters of all the devices in the primary side load response network and the secondary side load demand network are calculated, and the corresponding devices are controlled according to the calculated control parameters of all the devices, so that the real-time cold and hot load simulation requirements of multiple types of parks can be met.
In a specific implementation manner of the embodiment of the present invention, the primary side load response network includes a heat source device, a cold source device, a heat storage device and a cold storage device connected by pipe network branches; the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
the heat source equipment and the cold source equipment are arranged in parallel; wherein the heat source equipment and the cold source equipment comprise but are not limited to an air source heat pump, a refrigerator, an electric boiler and the like;
the heat storage equipment and the cold storage equipment are arranged in parallel;
the heat source equipment is connected with the heat storage equipment through a pipeline, and a first heat meter is arranged between the heat source equipment and the heat storage equipment;
the cold source equipment is connected with the cold accumulation equipment through a pipeline, and a second calorimeter is arranged between the cold source equipment and the cold accumulation equipment;
a third calorimeter is arranged at the inlet or the outlet of the load equipment; and the inlets of the heat exchangers are respectively connected with the outlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment, and the outlets of the heat exchangers are respectively connected with the inlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment. In the embodiment of the invention, the first heat meter, the second heat meter and the third heat meter can monitor the temperature and the flow of each monitoring point and feed back the temperature and the flow to the load regulator.
In the embodiment of the invention, the load regulator adopts the load terminal capable of inputting a planned load curve, can simulate and reproduce the daily load demands of different parks and different seasons, and can simulate the cold/hot load demands of different cold/hot power levels by accurately controlling each device in the primary load response network and the secondary load demand network, and the load regulator can be arbitrarily combined and set within the upper power limit, and is convenient to set. Specifically, in the specific implementation process, the load regulator relies on control elements such as an industrial control computer (upper computer), a PLC (programmable logic controller), a relay and the like on hardware, based on the structural relation between a primary side load response network and a secondary side load demand network, physical parameters and mathematical algorithm modeling are carried out, software programming is carried out to realize an automatic control function, the regulation control function of each device in the primary side load response network and the secondary side load demand network is realized in a mode that the load regulator delivers different heat load output parameters, so that the aim of inputting a planned load curve into the load regulator through input is fulfilled, the daily load demands of different parks and different seasons are simulated and reproduced, the coordinated control of each device in the primary side load response network and the secondary side load demand network is executed, the accurate control is carried out, the different heat and cold power magnitude heat/cold load demands can be simulated, the combination and the setting are arbitrary within the upper power limit, and the setting is convenient.
The control mode of the cold and hot system dynamic simulation device in the embodiment of the invention can be divided into a control mode based on interaction with a power grid and a control mode based on park load characteristics; based on the interaction operation mode with the power grid, when an electric load increasing instruction is received, the power grid-based intelligent heat storage system can dynamically analyze and then lift corresponding cold and heat source equipment to reach the maximum electric power for cold storage/heat storage and can realize the function of directly supplying cold/heat at the same time according to the maximum electric power in the cold and heat system dynamic simulation device, the current actual electric power, redundant heat-storage/cold capacity and the heat storage/cold device for supplementing cold and heat according to the heat supply/cold instruction requirement when the electric load decreasing instruction is received, and after the full capacity of the heat storage/cold equipment is reached, the cold and heat source equipment is used for directly supplying heat/cold according to the current electric power and the cold and heat instruction requirement, and redundant electric load can be cut off according to the instruction value when the electric load decreasing instruction is received. The control mode is based on the load characteristic of the park, and is based on the required cold-heat load condition, the cold/heat output power condition of the cold-heat source equipment and the actually available cold/heat capacity of the cold-heat storage/heat equipment are combined, the cold/heat power of the direct-supply cold/heat source is dynamically increased or reduced, when the cold-heat source is operated with the maximum cold/heat power and does not meet the load requirement of the park, the direct-supply equipment or the cold-heat storage/heat equipment is added for combined supply, the power of the direct-supply equipment and the heat output of the cold/heat storage equipment can be controlled by a pump and a valve in the supply process, and when the cold/heat output supply of the cold-heat source or the cold/heat storage/heat equipment is larger than the load requirement of the park, the cold/heat output of the cold/heat source or the cold/heat storage equipment is regulated in the same way.
Specifically, the operation control mode based on interaction with the power grid includes:
when the power grid is in the valley period, the load regulator collects data of a third heat meter and draws an actual load curve; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat source device supplies heat to the load device and simultaneously controls the heat storage device to store heat; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a first heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat storage device releases heat and supplies heat to the load device in a combined way with the heat source device.
When the power grid is in the valley period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device and simultaneously controls the cold storage device to store cold; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold accumulation device releases cold energy, and the cold accumulation device and the cold source device are combined to supply cold to the load device.
Specifically, the operational control mode based on the campus load characteristic includes:
when the heat source equipment is used for supplying heat to the load equipment independently, the load regulator draws an actual load curve by collecting data of a third heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device supplies heat to the load device.
When the cold source equipment is used for independently cooling the load equipment, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device.
When heat is stored in the heat storage equipment by using the heat source equipment, the load regulator draws an actual load curve by collecting data of the first heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device stores heat for the heat storage device.
In a specific implementation manner of the embodiment of the invention, the load regulator draws an actual load curve by collecting data of the second calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of all relevant equipment in the primary side load response network and the secondary side load demand network, and controlling the corresponding equipment according to the calculated control parameters of all the equipment, so that the cold source equipment stores cold for the cold storage equipment.
In a specific implementation manner of the embodiment of the invention, when the number of the heat source devices is greater than 1, the heat source devices are connected through a bypass pipeline so as to realize independent or combined heat supply of a plurality of heat source devices;
when the number of the cold source devices is larger than 1, the cold source devices are connected through a bypass pipeline so as to realize independent or combined cooling of various cold source devices.
In a specific implementation manner of the embodiment of the present invention, when the number of the heat storage devices is greater than 1, the heat storage devices are connected through a bypass pipeline, so as to implement timing or dynamic heat storage of multiple heat storage devices:
when the number of the cold accumulation devices is larger than 1, the heat accumulation devices are connected through bypass pipelines so as to realize timing or dynamic cold accumulation of various cold accumulation devices.
The following describes the dynamic simulation device of the cooling and heating system in the embodiment of the present invention in detail with reference to fig. 2 and a specific implementation manner.
The primary side load response network comprises heat source equipment, cold source equipment, heat storage equipment and cold storage equipment which are connected through pipe network branches; the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
wherein, pipe network branch road includes: valve V-4, first calorimeter, valve V-5, second calorimeter, valve V-8, valve V-9, regulating valve V-7, water pump P1, valve V-2, valve V-1, valve V-3, valve V-6;
the first ends of the valve V-4 and the valve V-5 are respectively connected with the outlets of the heat source equipment and the cold source equipment;
the first end of the valve V-8 is connected with the first end of the secondary side load demand network and the second ends of the valve V-4 and the valve V-5 respectively, and the second ends of the valve V-8 are connected with the connection points between the valve V-9 and the regulating valve V-7; the valve V-9 is also connected with the second end of the secondary side load demand network;
the regulating valve V-7 is also connected with the first end of the water pump P1, and the second end of the water pump P1 is respectively connected with the inlet ends of the heat storage equipment and the cold storage equipment and is also connected with the first end of the valve V-2; in the specific implementation process, a thermometer TT2 is also arranged beside the water pump P1;
The second end of the valve V-2 is respectively connected with the first ends of the valve V-6, the valve V-1 and the valve V-3 and is also respectively connected with inlets of the heat source equipment and the cold source equipment; in the specific implementation process, the inlets of the heat source equipment and the cold source equipment are also respectively provided with a thermometer TT3 and a thermometer TT5;
the second end of the valve V-6 is connected with the first end of the valve V-8;
the second end of the valve V-1 is connected with an outlet of the cold accumulation device;
the second end of the valve V-3 is connected with an outlet of the heat storage device;
the first heat meter is arranged at the outlet of the heat source equipment or at the inlet of the heat storage equipment; the first calorimeter refers to the flow meter FT2 and the thermometer TT4 in fig. 2;
the second heat meter is arranged at the outlet of the cold source equipment or at the inlet of the cold storage equipment; the second calorimeter refers to the flow meter FT3 and the thermometer TT6 in fig. 2.
The secondary side load demand network comprises load equipment, an adjustable valve V10, a check valve V11, a water pump 3, a heat exchanger and a third heat meter;
the inlet of the load equipment is connected with the outlet of the heat exchanger;
the adjustable valve V10, the check valve V11 and the water pump 3 are arranged in series between the outlet of the load equipment and the inlet of the heat exchanger;
The third heat meter is arranged at the inlet and/or the outlet of the load equipment, and the third heat meter refers to a flowmeter FT3, a thermometer TT6 and a thermometer TT8 in FIG. 2.
In a specific implementation manner of the embodiment of the present invention, the secondary side load demand network further includes a water pump 2 and a check valve V12, one end of the water pump 2 and the check valve V12 after being connected in series is connected to an inlet of the load device, and the other end of the water pump is respectively connected to the heat source device and the cold source device.
In the implementation process, the load equipment can be a water tank; the heat exchanger can be replaced by a plate; the heat source device can be an electric boiler, and the heat storage device can be a refrigerator; rated power distribution of the electric boiler is 20kW, and heat supply output load is more than 19kW; the rated power distribution power of the air source heat pump is 10kW, the rated heating power is 23kW, and the rated refrigerating capacity is 28kW; the design capacity of the heat storage device is 40kWh; the design capacity of the cold storage device is 40kWh.
(1) Independent operation condition of the electric boiler:
1) A virtual planned load curve is input to the load regulator.
2) The water pump P3 and the regulating valve V-10 are opened (the valve defaults to 30 percent of opening); the water pump P1, the regulating valve V-7 (the valve defaults to 30 percent of opening), the valve V-9, the valve V-4 and the valve V-2 are opened.
3) And through PID feedback regulation, the output of the electric boiler is changed, and the real-time response of the actual load curve of the load equipment and the input virtual planned load curve is realized. (i.e., the actual load curve generated by the thermometer TT7, thermometer TT8, and flowmeter FT4 is as consistent as possible with the planned load curve).
(during adjustment, boiler power can be changed by using a silicon controlled rectifier preferentially, then the frequency of the water pump P1 and the frequency of the water pump P3 are changed, finally the valve degree is reached, and the water pump P1 and the water pump P3 can be adjusted by using a variable frequency control cabinet).
(2) Operating conditions of the air source heat pump:
1) A virtual planned load curve is input to the load regulator.
2) The water pump P3 and the regulating valve V-10 are opened (the valve defaults to 30 percent of opening); the water pump P1, the regulating valve V-7 (the valve defaults to 30 percent of opening), and the valves V-9, V-5 and V-2 are opened.
3) And through PID feedback adjustment, the P1 output is changed so as to change the flow, and the real-time response of the actual load curve of the load equipment and the input virtual planned load curve is realized. (i.e., the actual load curve generated by the thermometer TT7, thermometer TT8, and flowmeter FT4 is as consistent as possible with the planned load curve).
(during adjustment, the frequency of the water pump P1 and the frequency of the water pump P3 can be changed preferentially, and finally the valve degree is achieved)
(3) The operation condition of the heat storage equipment is as follows: (the heat storage device output is substantially constant)
1) A virtual planned load curve is input to the load regulator.
2) The water pump P3 and the regulating valve V-10 are opened (the valve defaults to 30 percent of opening); the water pump P1, the regulating valve V-7 (the valve defaults to 30 percent of opening), the valves V-9, V-6 and V-3 are opened.
3) Through PID feedback adjustment, the output of the water pump P1 is changed so as to change the flow, and the real-time response of the actual load curve of the load equipment and the input virtual planned load curve is realized. (i.e., the actual load curve generated by the thermometer TT7, thermometer TT8, and flowmeter FT4 is as consistent as possible with the planned load curve).
(during adjustment, the frequency of the water pump P1 and the frequency of the water pump P3 can be changed preferentially, and finally the valve degree is achieved)
(4) The cold accumulation device operating condition:
1) A virtual planned load curve is input to the load regulator.
2) The water pump P3 and the regulating valve V-10 are opened (the valve defaults to 30 percent of opening); the water pump P1, the regulating valve V-7 (the valve defaults to 30 percent of opening), the valves V-9, V-6 and V-1 are opened.
3) Through PID feedback adjustment, the output of the water pump P1 is changed so as to change the flow, and the real-time response of the actual load curve of the load equipment and the input virtual planned load curve is realized. (i.e., the actual load curve generated by the thermometer TT7, thermometer TT8, and flowmeter FT4 is as consistent as possible with the planned load curve).
(the frequency of the water P1 and the frequency of the water P3 can be changed preferentially in the adjustment process, and finally the valve degree is achieved)
(5) Combined operating conditions: (electric boiler + heat storage device, electric boiler + air source heat pump + heat storage device, air source heat pump + cold storage device)
1) A virtual planned load curve is input to the load regulator.
2) The water pump P3 and the regulating valve V-10 are opened (the valve defaults to 30 percent of opening); the combination mode is determined firstly, the corresponding valve (manual) is opened, and then the water pump P1 and the regulating valve V-7 are opened (the valve defaults to 30 percent of opening).
3) Through PID feedback adjustment, the output of the water pump P1 is changed so as to change the flow, and the real-time response of the actual load curve of the load equipment and the input virtual planned load curve is realized. (i.e., the actual load curve generated by the thermometer TT7, thermometer TT8, and flowmeter FT4 is as consistent as possible with the planned load curve).
(during adjustment, boiler power can be adjusted preferentially when the boiler participates, then the frequency of the water pump P1 and the frequency of the water pump P3 are changed, and finally the valve degree is reached)
(6) Working condition of heat storage equipment/cold storage equipment
1) The electric boiler stores heat for the heat storage equipment, and the outlet water temperature of the electric boiler is set. The corresponding valves (V-8, V-4, V-2, V-7) are opened automatically (other valves may be closed and opened manually at this time). Through PID regulation, the constant temperature of the water outlet is realized.
2) The air source heat pump stores heat for the heat storage device, and corresponding valves (V-8, V-5, V-2 and V-7) are automatically opened (other valves can be manually closed and opened at the moment).
3) The air source heat pump stores cold for the cold storage device, and corresponding valves are automatically opened. (other valves may be manually closed, opened at this time).
When based on interaction with the power grid, the operation control mode of the dynamic simulation device of the cooling and heating system comprises the following steps:
1) Electric boiler and heat storage equipment are operated in time intervals
In the valley electricity period, the heat supply of the electric boiler and the heat accumulation of the heat accumulation equipment are realized by adjusting a pipeline connected with the heat accumulation equipment; and in the peak electricity period, heat of the heat storage device is released and heat is supplied by the electric boiler. And simulating valley electricity utilization and regulating peak of a power grid.
2) Combined heat supply operation of air source heat pump and heat storage equipment
In the valley period, the air source heat pump heats and stores heat in the heat storage equipment; and in the peak electricity period, heat of the heat storage device is released and heat is supplied by the air source heat pump.
3) Air source heat pump and cold accumulation combined cold supply operation
In the valley period, the air source heat pump refrigerates and stores cold energy in the cold storage equipment; and in the peak electricity period, the cold energy of the cold accumulation equipment is released and the air source heat pump is combined for cooling.
When based on the load characteristics of the park, the operation control mode of the dynamic simulation device of the cold and hot system comprises the following steps:
1) Dynamic operation of electric boiler + thermal storage device
The thermal storage device stores/releases heat dynamically. When the electric boiler meets the heat supply requirement at any moment, storing the surplus heat in the heat storage equipment; the electric boiler and the heat storage device are combined for heat supply.
2) Independent heat supply operation of air source heat pump
The air source heat pump supplies heat independently, and real-time heat load requirements of multiple types of parks are met.
3) Air source heat pump and heat storage combined heat supply operation
When the heating efficiency of the air source heat pump is highest, heat can be stored in the heat storage equipment; when the heating efficiency of the air source heat pump is the lowest, the heat of the heat storage device is released to supply heat in a combined way with the air source heat pump, so that the energy is efficiently utilized.
4) Independent cooling operation mode of air source heat pump
The air source heat pump is used for independently supplying cold, so that the real-time cold load requirements of multiple types of parks are met.
5) Air source heat pump and cold accumulation combined cold supply operation mode
When the air source heat pump has the highest refrigerating efficiency, the cold energy is stored in the cold storage equipment; when the refrigerating efficiency of the air source heat pump is lowest, the cold energy of the cold accumulation equipment is released and the air source heat pump is combined for cooling, so that the energy is efficiently utilized.
Example 2
The embodiment of the invention provides a control method of a dynamic simulation device of a cold and hot system, which is applied to a load regulator, and comprises the following steps:
And repeatedly executing the equipment control flow by taking the difference value between the actual load curve and the planned load curve as a target, until optimal control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained; in the implementation process, the target is that the difference value between the actual load curve and the planned load curve is smaller than a set threshold value, and the deviation between the actual load output temperature and the planned temperature value can be specifically set to be within +/-1 ℃;
the equipment control flow comprises the following steps:
acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve;
and calculating control parameters of all the devices in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding devices according to the calculated control parameters of all the devices.
In a specific implementation manner of the embodiment of the present invention, the primary side load response network includes a heat source device, a cold source device, a heat storage device and a cold storage device connected by pipe network branches; the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
The heat source equipment and the cold source equipment are arranged in parallel;
the heat storage equipment and the cold storage equipment are arranged in parallel;
the heat source equipment is connected with the heat storage equipment through a pipeline, and a first heat meter is arranged between the heat source equipment and the heat storage equipment;
the cold source equipment is connected with the cold accumulation equipment through a pipeline, and a second calorimeter is arranged between the cold source equipment and the cold accumulation equipment;
a third calorimeter is arranged at the inlet or the outlet of the load equipment; and the inlets of the heat exchangers are respectively connected with the outlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment, and the outlets of the heat exchangers are respectively connected with the inlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment.
In a specific implementation manner of the embodiment of the present invention, when the power grid is in the valley period, the load regulator collects data of the third heat meter, and draws an actual load curve; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat source device supplies heat to the load device and simultaneously controls the heat storage device to store heat; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a first heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat storage device releases heat and supplies heat to the load device in a combined way with the heat source device.
In a specific implementation manner of the embodiment of the invention, when the power grid is in the valley period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device and simultaneously controls the cold storage device to store cold; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold accumulation device releases cold energy, and the cold accumulation device and the cold source device are combined to supply cold to the load device.
In a specific implementation manner of the embodiment of the present invention, when the heat source device is used to supply heat to the load device alone, the load regulator draws an actual load curve by collecting data of the third heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device supplies heat to the load device.
In a specific implementation manner of the embodiment of the present invention, when the cold source device is used to separately supply cold to the load device, the load regulator draws an actual load curve by collecting data of the third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device.
In a specific implementation manner of the embodiment of the invention, when the heat source equipment is utilized to store heat for the heat storage equipment, the load regulator draws an actual load curve by collecting data of a first heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device stores heat for the heat storage device.
In a specific implementation manner of the embodiment of the invention, when cold source equipment is utilized to cool cold source equipment, the load regulator draws an actual load curve by collecting data of a second calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of all relevant equipment in the primary side load response network and the secondary side load demand network, and controlling the corresponding equipment according to the calculated control parameters of all the equipment, so that the cold source equipment stores cold for the cold storage equipment.
Example 3
Based on the same inventive concept as embodiment 1, there is provided in an embodiment of the present invention a readable storage medium having stored therein a computer program for implementing the method of any one of embodiment 2 when executed by a processor.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are all within the protection of the present invention.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (22)
1. A dynamic simulation device for a cooling and heating system, comprising: a load adjuster;
the load regulator repeatedly executes the equipment control flow with the aim that the difference value between the actual load curve and the planned load curve is smaller than a set threshold value until the optimal control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained;
the equipment control flow comprises the following steps:
acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve; and calculating control parameters of all the devices in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding devices according to the calculated control parameters of all the devices.
2. The cooling and heating system dynamic simulation device according to claim 1, wherein: the primary side load response network comprises heat source equipment, cold source equipment, heat storage equipment and cold storage equipment which are connected through pipe network branches; the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
the heat source equipment and the cold source equipment are arranged in parallel;
the heat storage equipment and the cold storage equipment are arranged in parallel;
the heat source equipment is connected with the heat storage equipment through a pipeline, and a first heat meter is arranged between the heat source equipment and the heat storage equipment;
the cold source equipment is connected with the cold accumulation equipment through a pipeline, and a second calorimeter is arranged between the cold source equipment and the cold accumulation equipment;
a third calorimeter is arranged at the inlet or the outlet of the load equipment; and the inlets of the heat exchangers are respectively connected with the outlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment, and the outlets of the heat exchangers are respectively connected with the inlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment.
3. A cold and hot system dynamic simulation device according to claim 2, wherein: when the power grid is in the valley period, the load regulator collects data of a third heat meter and draws an actual load curve; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat source device supplies heat to the load device and simultaneously controls the heat storage device to store heat; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a first heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat storage device releases heat and supplies heat to the load device in a combined way with the heat source device.
4. A cold and hot system dynamic simulation device according to claim 2, wherein: when the power grid is in the valley period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device and simultaneously controls the cold storage device to store cold; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold accumulation device releases cold energy, and the cold accumulation device and the cold source device are combined to supply cold to the load device.
5. A cold and hot system dynamic simulation device according to claim 2, wherein: when the heat source equipment is used for supplying heat to the load equipment independently, the load regulator draws an actual load curve by collecting data of a third heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device supplies heat to the load device.
6. A cold and hot system dynamic simulation device according to claim 2, wherein: when the cold source equipment is used for independently cooling the load equipment, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device.
7. A cold and hot system dynamic simulation device according to claim 2, wherein: when heat is stored in the heat storage equipment by using the heat source equipment, the load regulator draws an actual load curve by collecting data of the first heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device stores heat for the heat storage device.
8. A cold and hot system dynamic simulation device according to claim 2, wherein: when cold is stored in cold and hot equipment by using cold source equipment, the load regulator draws an actual load curve by collecting data of a second calorimeter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of all relevant equipment in the primary side load response network and the secondary side load demand network, and controlling the corresponding equipment according to the calculated control parameters of all the equipment, so that the cold source equipment stores cold for the cold storage equipment.
9. A cold and hot system dynamic simulation device according to claim 2, wherein: when the number of the heat source devices is greater than 1, the heat source devices are connected through bypass pipelines;
when the number of the cold source devices is greater than 1, the cold source devices are connected through bypass pipelines.
10. The dynamic simulation device of a cooling and heating system according to claim 2, wherein when the number of the heat storage devices is greater than 1, the heat storage devices are connected through bypass lines:
when the number of the cold accumulation devices is more than 1, the heat accumulation devices are connected through bypass pipelines.
11. A cold and hot system dynamic simulation device according to claim 2, wherein the pipe network branch comprises: valve V-4, first calorimeter, valve V-5, second calorimeter, valve V-8, valve V-9, regulating valve V-7, water pump P1, valve V-2, valve V-1, valve V-3, valve V-6;
the first ends of the valve V-4 and the valve V-5 are respectively connected with the outlets of the heat source equipment and the cold source equipment;
the first end of the valve V-8 is connected with the first end of the secondary side load demand network and the second ends of the valve V-4 and the valve V-5 respectively, and the second ends of the valve V-8 are connected with the connection points between the valve V-9 and the regulating valve V-7; the valve V-9 is also connected with the second end of the secondary side load demand network;
the regulating valve V-7 is also connected with the first end of the water pump P1, and the second end of the water pump P1 is respectively connected with the inlet ends of the heat storage equipment and the cold storage equipment and is also connected with the first end of the valve V-2;
the second end of the valve V-2 is respectively connected with the first ends of the valve V-6, the valve V-1 and the valve V-3 and is also respectively connected with inlets of the heat source equipment and the cold source equipment;
the second end of the valve V-6 is connected with the first end of the valve V-8;
The second end of the valve V-1 is connected with an outlet of the cold accumulation device;
the second end of the valve V-3 is connected with an outlet of the heat storage device;
the first heat meter is arranged at the outlet of the heat source equipment or at the inlet of the heat storage equipment;
the second heat meter is arranged at the outlet of the cold source equipment or at the inlet of the cold storage equipment.
12. The cold and hot system dynamic simulation device according to claim 2, wherein the secondary side load demand network comprises load equipment, an adjustable valve V10, a check valve V11, a water pump 3, a heat exchanger and a third heat meter;
the inlet of the load equipment is connected with the outlet of the heat exchanger;
the adjustable valve V10, the check valve V11 and the water pump 3 are arranged in series between the outlet of the load equipment and the inlet of the heat exchanger;
the third heat meter is arranged at the inlet and/or the outlet of the load equipment.
13. The dynamic simulation device of a cooling and heating system according to claim 12, wherein the secondary side load demand network further comprises a water pump 2 and a check valve V12, one end of the water pump 2 and the check valve V12 are connected in series and then connected with the inlet of the load device, and the other end of the water pump is respectively connected with the heat source device and the cold source device.
14. A control method of a dynamic simulation device of a cooling and heating system, which is applied to a load regulator, the control method comprising:
and repeatedly executing the equipment control flow by taking the difference value between the actual load curve and the planned load curve as a target, until optimal control parameters of all the equipment in the primary side load response network and the secondary side load demand network are obtained;
the equipment control flow comprises the following steps:
acquiring data of each monitoring point in a primary side load response network and a secondary side load demand network, and drawing an actual load curve; and calculating control parameters of all the devices in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding devices according to the calculated control parameters of all the devices.
15. The control method of a dynamic simulation device of a cooling and heating system according to claim 14, wherein the primary side load response network comprises a heat source device, a cold source device, a heat storage device and a cold storage device which are connected through pipe network branches;
the secondary side load demand network comprises load equipment and a heat exchanger which are connected;
The heat source equipment and the cold source equipment are arranged in parallel;
the heat storage equipment and the cold storage equipment are arranged in parallel;
the heat source equipment is connected with the heat storage equipment through a pipeline, and a first heat meter is arranged between the heat source equipment and the heat storage equipment;
the cold source equipment is connected with the cold accumulation equipment through a pipeline, and a second calorimeter is arranged between the cold source equipment and the cold accumulation equipment;
a third calorimeter is arranged at the inlet or the outlet of the load equipment; and the inlets of the heat exchangers are respectively connected with the outlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment, and the outlets of the heat exchangers are respectively connected with the inlets of the heat source equipment, the cold source equipment, the heat storage equipment and the cold storage equipment.
16. The control method of a dynamic simulation device of a cooling and heating system according to claim 15, wherein when the power grid is in a valley period, the load regulator collects data of a third heat meter and draws an actual load curve; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat source device supplies heat to the load device and simultaneously controls the heat storage device to store heat; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a first heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the heat storage device releases heat and supplies heat to the load device in a combined way with the heat source device.
17. The control method of a dynamic simulation device of a cooling and heating system according to claim 15, wherein when the power grid is in a valley period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device and simultaneously controls the cold storage device to store cold; when the power grid is in a peak electricity period, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold accumulation device releases cold energy, and the cold accumulation device and the cold source device are combined to supply cold to the load device.
18. The control method of a dynamic simulation device of a cooling and heating system according to claim 15, wherein when the heat source device is used to supply heat to the load device alone, the load regulator draws an actual load curve by collecting data of a third heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device supplies heat to the load device.
19. The control method of a dynamic simulation device of a cooling and heating system according to claim 15, wherein when the cold source equipment is used for independently cooling the load equipment, the load regulator draws an actual load curve by collecting data of a third heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network, and controlling the corresponding devices according to the calculated control parameters of each device, so that the cold source device supplies cold to the load device.
20. The control method of a dynamic simulation device of a cooling and heating system according to claim 15, wherein when the heat storage device stores heat by the heat source device, the load regulator draws an actual load curve by collecting data of the first heat meter; and calculating control parameters of each relevant device in the primary side load response network and the secondary side load demand network based on the difference value between the actual load curve and the planned load curve, and controlling the corresponding device according to the calculated control parameters of each device so that the heat source device stores heat for the heat storage device.
21. The control method of a dynamic simulation device of a cooling and heating system according to claim 15, wherein when cold is stored in the cooling and heating equipment by using the cold source equipment, the load regulator draws an actual load curve by collecting data of the second heat meter; based on the difference value between the actual load curve and the planned load curve, calculating control parameters of all relevant equipment in the primary side load response network and the secondary side load demand network, and controlling the corresponding equipment according to the calculated control parameters of all the equipment, so that the cold source equipment stores cold for the cold storage equipment.
22. A readable storage medium, characterized in that the readable storage medium has stored therein a computer program for implementing the method of any of claims 14 to 21 when being executed by a processor.
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