CN109886595A - A kind of distributing electric heating electrical load characteristics analysis method - Google Patents
A kind of distributing electric heating electrical load characteristics analysis method Download PDFInfo
- Publication number
- CN109886595A CN109886595A CN201910157299.4A CN201910157299A CN109886595A CN 109886595 A CN109886595 A CN 109886595A CN 201910157299 A CN201910157299 A CN 201910157299A CN 109886595 A CN109886595 A CN 109886595A
- Authority
- CN
- China
- Prior art keywords
- electric heating
- distributing electric
- analysis method
- distributing
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/80—Management or planning
- Y02P90/82—Energy audits or management systems therefor
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of distributing electric heating electrical load characteristics analysis method, the analysis method includes the following steps: step 1: analyzed area distributing electric heating equipment working principle and technical characteristic, calculates the power consumption of equipment unit heating capacity；Step 2: analysis user's electric heating demand and user's heating system use characteristic, calculate distributing electric heating equipment thermic load characteristic；Step 3: analyzing the factors such as different policies and the electricity consumption behavior of distributing electric heating user under the conditions of electricity price, and the power consumption and distributing electric heating equipment thermic load characteristic of bonding apparatus unit heating capacity calculate distributing electric heating equipment electrical load characteristics.Distributing electric heating power load in electric system is calculated according to analysis method of the present invention, as a result after the access electric system of electric heating power load, distribution network construction modification scheme provides theoretical basis in electric system, while also providing theoretical foundation for work such as following needs system calls.
Description
Technical field
The invention belongs to electric heating fields in electric system, are related to a kind of distributing electric heating electrical load characteristics analysis side
Method.
Background technique
Under environmental pollution and fossil energy overall situation in short supply, implement electric heating for pushing China's energy-consuming to remove from office
It orders, implements national energy strategy, clean energyization development is promoted to be of great significance.
Electric heating is that thermal energy supply user is converted electrical energy into using electric boiler, heat pump and heat generating device of all kinds of power consumptions etc.
Heating is divided into distributing and centralized two kinds of electric heating.Wherein, dispersion electric heating equipment mainly has regenerative electrochemical heating, electric heating
Film, heating cable and heat pump system etc..Dispersion electric heating equipment may be mounted at the positions such as floor, furred ceiling or metope, have section
Water saves land, is convenient for locellus Time-sharing control, implements the advantages of behavior energy saving.Currently, dispersion electric heating is widely used in resident and lives
In all kinds of buildings such as residence, school, hospital, office building, office building.
However, the access of cleaning heat supply is while meeting clean energy requirement on a large scale, also by building to power distribution network
If operation brings unprecedented challenge.So-called electrical load characteristics refer to the electric energy that heating equipment finally consumes.Electric heating
Power load has the characteristics that power is big, rigidity is strong and the time concentrates.Electric heating power load will be to power system load day peak
Paddy is poor, season peak-valley difference, facility utilization rate are brought and significantly affected.Currently, to extensive cleaning electric heating electrical load characteristics
The shortage of analysis method cause distribution network construction transformation target and technology upgrading route it is indefinite.
Therefore, to the research of electric heating electrical load characteristics for system for distribution network of power construction retrofit and technology upgrading road
Line has important practical value and meaning.
Summary of the invention
Electric heating electrical load characteristics in electric system are analyzed in order to solve the problems, such as to lack at present, the present invention provides
A kind of distributing electric heating electrical load characteristics analysis method.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of distributing electric heating electrical load characteristics analysis method, includes the following steps:
Step 1: analyzed area distributing electric heating equipment working principle and technical characteristic calculate equipment unit heating capacity
Power consumption；
Step 2: analysis user's electric heating demand and user's heating system use characteristic, calculate distributing electric heating equipment
Thermic load characteristic；
Step 3: analyzing the factors such as different policies and the electricity consumption behavior of distributing electric heating user under the conditions of electricity price, in conjunction with
It is negative to calculate the electricity consumption of distributing electric heating equipment for the power consumption and distributing electric heating equipment thermic load characteristic of equipment unit heating capacity
Lotus characteristic.
Compared with the prior art, the present invention has the advantage that
Distributing electric heating electrical load characteristics analysis method combination distributing electric heating equipment working principle of the invention,
The behavior and demand for considering user simultaneously, calculate distributing electric heating power load in electric system.According to institute of the present invention
It states analysis method to calculate distributing electric heating power load in electric system, as a result electric heating power load accesses
After electric system, distribution network construction modification scheme provides theoretical basis in electric system, while being also following needs system tune
The work such as degree provide theoretical foundation.
Detailed description of the invention
Fig. 1 is the power consumption of the unit heating capacity of heat pump and the relationship (not defrosting) of environment temperature；
Fig. 2 is the power consumption of the unit heating capacity of heat pump and the relationship (defrosting) of environment temperature；
Fig. 3 is benchmark buildings model；
Fig. 4 is benchmark residential housing distributing electric heating equipment thermic load characteristic；
Fig. 5 is benchmark office building distributing electric heating equipment thermic load characteristic；
Electrical load characteristics of the Fig. 6 for heat pump assembly in benchmark office building in typical all (168 hours).
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawing, and however, it is not limited to this, all to this
Inventive technique scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered
Within the protection scope of the present invention.
The present invention provides a kind of distributing electric heating electrical load characteristics analysis method, the analysis method includes as follows
Step:
Step 1: analyzed area distributing electric heating equipment working principle and technical characteristic calculate equipment unit heating capacity
Power consumption.
In this step, according to distributing electric heating equipment and its heater element working principle, to distributing electric heating equipment
Actual power consumption amount carries out.Particularly, for heat pump system, energy can be transmitted to high-grade heat source from low-grade heat source
For device systems, performance generally uses Energy Efficiency Ratio (Coefficent of Perfomance, COP) to evaluate.Energy Efficiency Ratio
Is defined as: the heat and required the ratio between power of high temp objects are passed to by cryogenic object.The Energy Efficiency Ratio 2~4 of usual heat pump, even
It can achieve 5 or more.
For heat pump system, the power consumption of unit heating capacity is leaving water temperature, outdoor temperature and sub-load effect
The function of rate is indicated with EIR ().Then the power consumption of unit heating capacity can indicate are as follows:
EIRT=EIR (Thws, OAT) * EIR (PLR, Thws-OAT)；
In formula, EIRTIt is the power consumption of the unit heating capacity of heat pump system；Thws is the leaving water temperature of heat pump, and unit is
℃；OTA is outside air temperature, and unit is DEG C；PLR is part load ratio.
Step 2: analysis user's electric heating demand and user's heating system use characteristic, calculate distributing electric heating equipment
Thermic load characteristic.
In this step, distributing electric heating equipment thermic load characteristic is that interior disturb needs with the heat disturbed under combined factors effect outside
It asks, it may be assumed that
QH=QHW+QHN；
In formula, QHFor Heating Load, unit kWh；QHWTo disturb caused thermic load, unit kWh outside；QHNIt is disturbed to be interior
Caused thermic load, unit kWh.Wherein, the factor of disturbing refers mainly to the sun and atmosphere outside, and the interior factor of disturbing refers mainly to personnel, shines
The indoor airflows such as bright and equipment.
This step includes following sub-step:
Step 2 one: benchmark building model is established；
Step 2 two: the thermal parameter setting value of benchmark building is obtained；
Step 2 three: density of personnel and in room rate in statistics building, it is so-called to refer to that personnel exist in room rate (Occupation)
Indoor timetable is the maximum percentage in room number in the input mode of each period；
Step 2 four: the heating set temperature of building is obtained；
Step 2 five: distributing electric heating equipment thermic load characteristic is calculated using software.
Step 3: analyzing the factors such as different policies and the electricity consumption behavior of distributing electric heating user under the conditions of electricity price, in conjunction with
It is negative to calculate the electricity consumption of distributing electric heating equipment for the power consumption and distributing electric heating equipment thermic load characteristic of equipment unit heating capacity
Lotus characteristic:
EHC=QHC*EIRHC；
In formula, EHCFor distributing electric heating equipment power load, unit kWh；QHCIt is practical for distributing electric heating equipment
Heating capacity thinks its value and Heating Load Q in approximate calculationHIt is equal；EIRHCFor the system of unit of distributing electric heating equipment
The power consumption of heat.
Embodiment:
The present embodiment considers air source heat pump heating system in distributing electric heating equipment.Distributing described in the present embodiment
Electric heating electrical load characteristics analysis method, comprising the following steps:
Step 1: air source heat pump heat supply working principle and technical characteristic in analyzed area distributing electric heating equipment, meter
Calculate the power consumption of equipment unit heating capacity.
Air source heat pump is a kind of using outdoor air as the heat pump of heat source, and equipment passes through and outdoor air carries out heat exchange,
Outdoor Cryogenic air energy is recycled, for a kind of heat pump form of indoor heating.Air source heat pump includes air-air heat pump
Unit and HEAT PUMP TYPE WATER CHILLERS.
In addition, air source heat pump heating system is in actual use, the problem of auxiliary heat of electricity defrosts is faced.In outdoor
For temperature at 4 DEG C or more, the Frost formation process of outdoor heat exchanger is not clearly；But at 4 DEG C or less, frosting is very bright
Aobvious, the auxiliary heat defrosting of electricity is a necessary process.
Experiment statistics are carried out by the power consumption of the unit heating capacity to certain air source heat pump system, are not considered to defrost
With consider defrosting condition under heat pump system unit heating capacity power consumption and environment temperature relationship, respectively such as Fig. 1 and Fig. 2 institute
Show.When environment temperature drops to -10 DEG C by 4 DEG C, the power consumption of unit heating capacity rises to 1.14kW/ from by 0.44kW/kW
kW。
Step 2: analysis user's electric heating demand and user's heating system use characteristic, calculate distributing electric heating equipment
Thermic load characteristic.
Step 2 one: region buildings model is established.By taking Beijing's Form of Architecture statistic analysis result as an example, dispersion will be taken
The shape of the building of formula electric heating is assumed to be cuboid, and residential architecture takes length-width ratio 3:1, and office building takes length-width ratio 1:1.Benchmark
The building that model chooses the medium scale of construction is prototype, and Shape Coefficient takes 0.2.Benchmark building illustraton of model is as shown in Figure 3.
Step 2 two: the thermal parameter of benchmark building is obtained.Office building and residential architecture goes along with sb. to guard him knot in the present embodiment
Structure thermal parameter difference is as shown in Table 1 and Table 2.
1 office building building enclosure thermal parameter of table
2 residential architecture building enclosure thermal parameter of table
Step 2 three: density of personnel and in room rate in statistics building.
In the present embodiment, the density of personnel of office building and residential architecture is as shown in table 3, and the personnel of office building are in room rate
As shown in table 4, the personnel of residential architecture are as shown in table 5 in room rate.
The density of personnel of table 3 office building and residential architecture
4 office building personnel of table are in room rate
5 residential architecture personnel of table are in room rate
Step 2 four: the heating set temperature of building is obtained.In the present embodiment, the heating set temperature of office building considers
Actual working time setting, as shown in table 6.Residential architecture heating set temperature is set according to 18 DEG C of winter, and considers reality
In the requirement of room rate.
6 office building temperature setting time table of table
Step 2 five: distributing electric heating equipment thermic load characteristic is calculated using software.
Dispersion in whole year 8760 hours in the present embodiment, by eQUEST software to benchmark residential housing and office building
Formula electric heating equipment thermic load characteristic is calculated, as a result as shown in Figure 4 and Figure 5 respectively.
Step 3: analyzing the electricity consumption behavior of distributing electric heating user under the conditions of different policies and electricity price, calculates distributing
Electric heating equipment electrical load characteristics.In the present embodiment, consider heating be rigid demand, consider distributing electric heating user side by
Extraneous policy and power price influence smaller.Therefore, the usage behavior of user only considers switching characteristic.
In the present embodiment, the heating control temperature of residential architecture is set according to 18 DEG C of whole day, i.e., heating equipment is complete
It is in the state opened.For office building, switching characteristic is as shown in table 7.
7 office building temperature setting switch characteristic time of table table
In the present embodiment, analysis uses the power consumption characteristic of heat pump techniques heating by taking office building as an example.By calculating, heat pump
Electrical load characteristics of the device in typical all (168 hours) are as shown in Figure 6.
Claims (5)
1. a kind of distributing electric heating electrical load characteristics analysis method, it is characterised in that the analysis method includes following step
It is rapid:
Step 1: analyzed area distributing electric heating equipment working principle and technical characteristic calculate the consumption of equipment unit heating capacity
Electricity；
Step 2: analysis user's electric heating demand and user's heating system use characteristic, and it is negative to calculate distributing electric heating equipment heat
Lotus characteristic；
Step 3: the factors such as different policies and the electricity consumption behavior of distributing electric heating user under the conditions of electricity price, bonding apparatus are analyzed
It is special to calculate distributing electric heating equipment power load for the power consumption and distributing electric heating equipment thermic load characteristic of unit heating capacity
Property.
2. distributing electric heating electrical load characteristics analysis method according to claim 1, it is characterised in that the dispersion
When formula electric heating equipment is heat pump system, the power consumption of unit heating capacity is indicated are as follows:
EIRT=EIR (Thws, OAT) * EIR (PLR, Thws-OAT)；
In formula, EIRTIt is the power consumption of the unit heating capacity of heat pump system；Thws is the leaving water temperature of heat pump；OTA is outdoor air
Temperature；PLR is part load ratio.
3. distributing electric heating electrical load characteristics analysis method according to claim 1, it is characterised in that the step
Two include following sub-step:
Step 2 one: benchmark building model is established；
Step 2 two: the thermal parameter setting value of benchmark building is obtained；
Step 2 three: density of personnel and in room rate in statistics building；
Step 2 four: the heating set temperature of building is obtained；
Step 2 five: distributing electric heating equipment thermic load characteristic is calculated.
4. distributing electric heating electrical load characteristics analysis method according to claim 1 or 3, it is characterised in that described point
Formula electric heating equipment thermic load characteristic is dissipated to be expressed as:
QH=QHW+QHN；
In formula, QHFor Heating Load；QHWTo disturb caused thermic load outside；QHNCaused thermic load is disturbed to be interior.
5. distributing electric heating electrical load characteristics analysis method according to claim 1, it is characterised in that the dispersion
Formula electric heating equipment electrical load characteristics indicate are as follows:
EHC=QHC*EIRHC；
In formula, EHCFor distributing electric heating equipment power load；QHCFor the practical heating capacity of distributing electric heating equipment；EIRHCFor
The power consumption of the unit heating capacity of distributing electric heating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157299.4A CN109886595A (en) | 2019-03-01 | 2019-03-01 | A kind of distributing electric heating electrical load characteristics analysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157299.4A CN109886595A (en) | 2019-03-01 | 2019-03-01 | A kind of distributing electric heating electrical load characteristics analysis method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109886595A true CN109886595A (en) | 2019-06-14 |
Family
ID=66930258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910157299.4A Pending CN109886595A (en) | 2019-03-01 | 2019-03-01 | A kind of distributing electric heating electrical load characteristics analysis method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109886595A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605669A (en) * | 2016-03-16 | 2016-05-25 | 上海上塔软件开发有限公司 | Temperature optimized setting and intelligent control method of electric heating system |
| CN106524295A (en) * | 2016-11-21 | 2017-03-22 | 北京建筑技术发展有限责任公司 | Regional building energy consumption predicting method |
| CN108256739A (en) * | 2017-12-22 | 2018-07-06 | 国网北京市电力公司 | Load determination method and device applied to electric heating |
| CN108361799A (en) * | 2017-12-31 | 2018-08-03 | 国家电网公司 | A kind of thermal storage type electric heating system optimized operation automatic control device and method based on electricity price a few days ago |
-
2019
- 2019-03-01 CN CN201910157299.4A patent/CN109886595A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605669A (en) * | 2016-03-16 | 2016-05-25 | 上海上塔软件开发有限公司 | Temperature optimized setting and intelligent control method of electric heating system |
| CN106524295A (en) * | 2016-11-21 | 2017-03-22 | 北京建筑技术发展有限责任公司 | Regional building energy consumption predicting method |
| CN108256739A (en) * | 2017-12-22 | 2018-07-06 | 国网北京市电力公司 | Load determination method and device applied to electric heating |
| CN108361799A (en) * | 2017-12-31 | 2018-08-03 | 国家电网公司 | A kind of thermal storage type electric heating system optimized operation automatic control device and method based on electricity price a few days ago |
Non-Patent Citations (3)
| Title |
|---|
| 于齐东: "部分负荷率对热泵系统能耗的影响分析", 《流体机械》 * |
| 张晓彤 等: "区域建筑冷(热)负荷的影响因素敏感性分析及预测方法研究", 《建筑科学》 * |
| 闫俐君 等: "土壤源VRF空调系统冬季运行部分负荷特性实验研究", 《制冷学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102043907B (en) | Real-time cold load determination method of air-conditioner room | |
| Greenberg et al. | Best practices for data centers: Lessons learned from benchmarking 22 data centers | |
| CN109376912B (en) | Operation optimization method of combined cooling heating and power system based on thermal inertia of civil building | |
| CN110543713B (en) | Heat pump-floor heating system control method considering user comfort and building heat storage | |
| Cole et al. | Use of model predictive control to enhance the flexibility of thermal energy storage cooling systems | |
| Zhu et al. | Optimization of zero-energy building by multi-criteria optimization method: A case study | |
| CN204943795U (en) | A kind of central air conditioner room efficiency optimization system | |
| CN105546768A (en) | Energy-saving method and system of central air conditioner | |
| CN108426354A (en) | Air-conditioning Load Prediction system based on radiated time sequence method | |
| CN104216368A (en) | Optimized operation control method for distributed combined cooling, heating and power system based on demand response | |
| CN102393716A (en) | Energy-saving building monitoring system based on wireless sensing network | |
| CN203203187U (en) | Anti-moisture-condensation control device used for capillary tube air conditioner | |
| CN205137786U (en) | Building power -operated control and subitem measurement system | |
| Li et al. | Control method of multi-energy system based on layered control architecture | |
| Shi et al. | Performance of a BAPVT modules coupled TEHR unit fresh air system based on micro heat pipe array | |
| CN208567008U (en) | Air-conditioning Load Prediction system based on radiated time sequence method | |
| CN109886595A (en) | A kind of distributing electric heating electrical load characteristics analysis method | |
| CN202868891U (en) | All-season full-automatic office building energy-saving air conditioner system | |
| CN105318500A (en) | Building energy resource control and subentry metering system | |
| CN113283649B (en) | Method, device, equipment and medium for controlling energy efficiency of supply and demand cooperative operation | |
| Zhang et al. | Evaluations and Optimizations on Practical Performance of the Heat Pump Integrated with Heat-Source Tower in a Residential Area in Changsha, China | |
| Tao et al. | Adaptive energy saving monitoring technology for air condition in telecommunication equipment room | |
| CN205425318U (en) | Air conditioner economizer system | |
| Chu et al. | Research on flexible allocation strategy of power grid interactive buildings based on multiple optimization objectives | |
| Zhang | Design and Technical Analysis of HVAC Ventilation System in Green Building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190614 |
|
| RJ01 | Rejection of invention patent application after publication |