CN109767080A - A kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system - Google Patents
A kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system Download PDFInfo
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Abstract
The present invention relates to a kind of Demand Side Response appraisal procedures of Communities ' Integrated energy resource system, the following steps are included: 1) using economic indicator, environmental index, target energy and reliability index as the first class index of assessment models, and determine the two-level index under each first class index；2) coupled weight for considering each first class index and two-level index and each two-level index, constructs Demand Side Response assessment models；3) assessment result of side response assessment models carries out Optimized Operation a few days ago to selected system requirements side flexible load according to demand.Compared with prior art, the present invention has many advantages, such as that comprehensive assessment, consideration are comprehensive.
Description
Technical field
The present invention relates to community source-lotus scheduling fields, ring more particularly, to a kind of Demand-side of Communities ' Integrated energy resource system
Answer appraisal procedure.
Background technique
Research in relation to Demand-side at present is all mainly the peak clipping of consideration electric energy, and the Demand-side of integrated energy system and biography
Demand-side in system meaning is very different.Specifically, since the Demand-side of integrated energy system contains electricity, heat, cold three
The kind energy, is to be supplied by CCHP (cold-hot-electricity trilogy supply) system, so must sufficiently examine when dispatching to it
The response for considering the flexible load of three kinds of energy, rather than just the single response for considering electric energy.
Quantifier elimination is also only lacked to the assessment of integrated energy system Demand-side at this stage, the present invention provides one kind to be directed to
The appraisal procedure of integrated energy system Demand-side, it is different from the past that evaluation requirement response effect is come with Demand-side load peak clipping load
Fruit, but the effect for influencing to come after evaluation requirement responds to be generated after demand response to environment, economy, the energy, environment.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of Communities ' Integrated energy
The Demand Side Response appraisal procedure of system.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system, comprising the following steps:
1) using economic indicator, environmental index, target energy and reliability index as the first class index of assessment models, and really
Two-level index under fixed each first class index；
2) consider the subjective and objective coupled weight of each first class index and two-level index and each two-level index, building Demand-side is rung
Answer assessment models；
3) response assessment models in side compare before obtaining Demand Side Response with the index value after response according to demand, and root
Response is optimized according to comparing result.
Two-level index under the economic indicator includes day operation overall cost, and the second level under the environmental index refers to
Mark includes carbon dioxide day discharge amount and the equivalent day emission reduction of carbon dioxide, and the two-level index under the target energy includes one
Secondary energy day's expenditure and clean energy resource utilization rate, the two-level index under the reliability index includes energy vacancy rate.
In the step 2), the expression formula of each two-level index is as follows:
Carbon dioxide day discharge amount AI:
Wherein, ζ1、ζ2、ζ3Respectively amount of carbon dioxide, the gas turbine production list of gas fired-boiler output unit heat generation
The amount of carbon dioxide that the amount of carbon dioxide of position electric energy production and traditional coal-burning power plant's production unit electricity generate, PGB、PMT、Pnet
The gas fired-boiler of respectively period t exports thermal power, gas turbine electromotive power output, the electrical power bought to bulk power grid；
Carbon dioxide day equivalent emission reduction AII:
Wherein,For electricity all in one day, heat, cold flexible loads be all not involved in Optimized Operation and electricity, heat, it is cold between nothing
The amount of carbon dioxide generated when coupling；
Energy vacancy rate BI:
Wherein,It is system in one day to power grid purchase of electricity, WE+WH/γ+WC/ γ is that system is all in one day
Load is converted into the amount of electric load, and γ is electricity heating, cold Energy Efficiency Ratio, WEFor the electric energy consumed in system one day, WHFor system one
The thermal energy consumed in it, WCFor the cold energy consumed in system one day.
Day operation overall cost CI:
CI=FGB+Fnet+FMT+FDG
Wherein, FGB、Fnet、FMT、FDGRespectively gas fired-boiler operating cost, to power grid purchases strategies, gas turbine operation
Cost, new energy power output cost, KGB、Kb、KMT、Kw、KpvRespectively the cost coefficient of the every output unit thermal power of gas fired-boiler, to
The cost coefficient of the every output unit electrical power of tou power price, the gas turbine of power grid power purchase, wind turbine power output cost, photovoltaic power output
Cost, Pw、PpvRespectively wind turbine, photovoltaic output power；
Non-renewable energy day's expenditure DI:
Wherein, m1、m2Respectively standard coal, gas fired-boiler consumed by the every production unit electrical power in traditional coal-burning power plant are every
Equivalence margin coal measures number consumed by output unit thermal power.
Clean energy resource utilization rate:
In the step 2), referred to using i-th of the second level of combination weights method acquisition for considering Network Analysis Method and entropy assessment
The subjective and objective coupled weight p of targeti, then have:
Wherein, ωiFor i-th of two-level index weight as obtained by Network Analysis Method, μiPass through entropy for i-th of two-level index
Weight obtained by power method, αi、βiFor intermediate variable.
The Demand Side Response assessment models are that each two-level index is asked with each being multiplied for two-level index coupled weight
With.
In the step 3), the scoring and each two-level index value before the response of side and after response, are obtained according to demand
Maximum two-level index is promoted to scoring, and carries out response optimization accordingly.
Compared with prior art, the invention has the following advantages that
One, comprehensive assessment: existing Demand Side Response assessment only considered the single assessment of electric load response, and the present invention examines
Electricity, heat, cold three kinds of loads while the recruitment evaluation of response of integrated energy system are considered.
Two, consider comprehensive: the index in terms of evaluation requirement response is no longer limited to the single amount of load peak clipping load
Change index, but carrys out the level that evaluation requirement responds from economy, environment, the energy, reliability etc..
Detailed description of the invention
Fig. 1 is estimation flow figure of the invention.
Fig. 2 is assessment indicator system structure chart.
Fig. 3 is the structural schematic diagram of integrated energy system.
Fig. 4 is load prognostic chart.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
Below with reference to flow chart and specific embodiment, the present invention is described in detail.
1, as shown in FIG. 1, FIG. 1 is estimation flow figures of the invention.
2, Demand-side flexible load is analyzed
Customer charge is divided into 4 classes in such a way that load participates in demand response by integrated energy system:
(1) basic load: this type load belongs to uncontrollable load, and the demand complete response to user, system can not
Change its with can mode and with energy the time.
(2) translatable load: load power-on time can change according to plan, and load needs integral translation, the electricity consumption time also across
More multiple scheduling slots.
It (3) can reduction plans: can bear centainly to interrupt or drop power, the load for reducing time operation, according to supply/demand
Some or all of reduction is carried out to it.
(4) transferable load: each period electricity consumption can will meet whole cycle load after transfer with flexible modulation
It is remained unchanged before total amount and transfer.
Wherein, the characteristic that " translatable load " and " transferable load " is all changed with load power-on time according to plan, but
The two is also had any different: " translatable load " needs integral translation, and the electricity consumption time cannot interrupt and the duration is fixed, when electricity consumption
The power of Duan Suoxu is immutable, such as washing machine, disinfection cabinet；" transferable load " is than " translatable load " more flexible, electricity consumption
The electricity consumption of period can flexible modulation, the electricity consumption period allows to interrupt and the duration is not fixed, and need to only meet the negative of transfer front and back
Lotus total demand is constant, and electric car is typical transferable load, and charging time of electric car under orderly charge mode fills
Electrical power is adjustable, but required total charge volume is constant.In view of user is more sensitive to thermic load, only consider that heat is negative herein
In lotus and refrigeration duty it is translatable, can reduction plans characteristic.
3, demand response Optimized Operation
The present invention predicts load and new energy power output with the minimum target of integrated energy system day operation cost a few days ago,
With 24 hours for a dispatching cycle, scheduling interval is to come to flexible load Optimized Operation for 1 hour, as a result such as Fig. 3.
The influence data that economy, environment, the energy, reliability are generated for Demand-side scheduling front and back individually below:
Table 1 is to economic impact
| It is economical | Day operation cost (member/day) |
| Demand-side does not respond | 8768.5 |
| Demand Side Response | 7996.7 |
2 effect on environment of table
| Environment | Carbon dioxide day discharge amount (t/ days) | Day equivalent carbon dioxide emission reduction amount (t/ days) |
| Demand-side does not respond | 1.59 | 1.12 |
| Demand Side Response | 1.35 | 1.36 |
Table 3 influences the energy
| The energy | Non-renewable energy day's expenditure (t/ days) | Clean energy resource utilization rate (/) |
| Demand-side does not respond | 3.7 | 20.3% |
| Demand Side Response | 3.35 | 21.5% |
Table 4 is to reliability effect
As seen from the above table, based on Demand-side electricity, hot, cold flexible load Optimized Operation, the warp of the integrated energy system
In terms of index of helping, energy outsourcing cost can save 8.8% energy cost daily；In terms of environmental index, daily carbon dioxide
Discharge amount is reduced to 1.35t by 1.59t, and day, equivalent carbon dioxide discharge-reduction was high-volume increased by 1.12t as 1.36t；Target energy side
Face, non-renewable energy day's expenditure are reduced to 3.35t by 3.7t, and clean energy resource utilization rate is then since it is considered that equipment depreciation cost increases
Add few；In terms of reliability, energy vacancy rate is reduced to 31.1% by 35.4% before.In conclusion considering Demand-side
In the front and back comparison of response, it can intuitively find out very much that indices are all improved.Especially in economic aspect and environment
Aspect obtains bigger achievement.
4, Index Weights
The present invention uses subjective and objective tax Quan Fangfa, i.e., using Network Analysis Method as subjective weights method, entropy assessment is objective
Assign Quan Fangfa.Following table is each index weights of Network Analysis Method:
The subjective weight of table 5
| Index | A1 | B1 | B2 | C1 | C2 | D1 |
| Weight | 0.2664 | 0.1052 | 0.1225 | 0.0951 | 0.0947 | 0.3161 |
Following table is entropy assessment weight:
6 objective weight of table
| Index | A1 | B1 | B2 | C1 | C2 | D1 |
| Weight | 0.1667 | 0.1667 | 0.1667 | 0.1667 | 0.1667 | 0.1667 |
If analytic hierarchy process (AHP) finds out the weights omega of each index1、ω2、····ωn.Each index is found out with entropy assessment again to weigh
Weight μ1、μ2、····μn。Coupled weight
The subjective and objective weight of table 7
| Index | A1 | B1 | B2 | C1 | C2 | D1 |
| Comprehensive weight | 0.1634 | 0.1628 | 0.1540 | 0.1707 | 0.1711 | 0.1780 |
5, score function
The numerical value of each index in side response front and back according to demand, index before and after demand response is judged according to Delphi method respectively
Index value and the fitting of the corresponding relationship of scoring are become scoring letter using least square method by the corresponding relationship that numerical value scores with it
Number.Indices value before and after demand response, which is substituted into score function, can acquire the assessment score of this index value, finally handle
The corresponding coupled weight of the assessment score of links is multiplied and sums to obtain the total score of system requirements response assessment.
The grading system that the present invention is set is as follows:
8 grading system of table
| Grade | It is high | It is higher | It is medium | It is lower | It is low |
| Score | ≥80 | ≥70 | ≥60 | ≥50 | < 50 |
Obtain each link score are as follows:
Each link score of table 9
| Grade form | Demand response is not considered | Consider demand response |
| It is economical | 54.9 | 73.3 |
| Environment | 62.1 | 74.5 |
| The energy | 61.2 | 67.3 |
| Reliably | 60.9 | 66.5 |
| Total score | 60.5 | 70.4 |
It can find out from upper table and have benefited from demand response, be promoted from lower development level to higher in terms of the economic cost of system
Development level, environment aspect are increased to higher development level by medium development level, the score in terms of energy aspect and reliability
There has also been certain increases, this makes the whole score of system requirements side construction level rise to higher development level from medium, tests
The importance of Demand-side construction is demonstrate,proved.
Claims (6)
1. a kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system, which comprises the following steps:
1) it using economic indicator, environmental index, target energy and reliability index as the first class index of assessment models, and determines each
Two-level index under first class index；
2) consider that the subjective and objective coupled weight of each first class index and two-level index and each two-level index, building Demand Side Response are commented
Estimate model；
3) response assessment models in side compare before obtaining Demand Side Response with the index value after response according to demand, and according to right
Response is optimized than result.
2. a kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system according to claim 1, which is characterized in that
Two-level index under the economic indicator includes day operation overall cost, and the two-level index under the environmental index includes two
Carbonoxide day the discharge amount and equivalent day emission reduction of carbon dioxide, the two-level index under the target energy includes non-renewable energy day
Consumption and clean energy resource utilization rate, the two-level index under the reliability index includes energy vacancy rate.
3. a kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system according to claim 2, which is characterized in that
In the step 2), the expression formula of each two-level index is as follows:
Carbon dioxide day discharge amount AI:
Wherein, ζ1、ζ2、ζ3The respectively amount of carbon dioxide of gas fired-boiler output unit heat generation, gas turbine production unit electricity
The amount of carbon dioxide that the amount of carbon dioxide and traditional coal-burning power plant's production unit electricity that can be generated generate, PGB、PMT、PnetRespectively
Thermal power, gas turbine electromotive power output, the electrical power bought to bulk power grid are exported for the gas fired-boiler of period t；
Carbon dioxide day equivalent emission reduction AII:
Wherein,For electricity all in one day, heat, cold flexible loads be all not involved in Optimized Operation and electricity, heat, it is cold between without coupling
When the amount of carbon dioxide that generates；
Energy vacancy rate BI:
Wherein,It is system in one day to power grid purchase of electricity, WE+WH/γ+WC/ γ is all loads of system in one day
It is converted into the amount of electric load, γ is electricity heating, cold Energy Efficiency Ratio, WEFor the electric energy consumed in system one day, WHFor in system one day
The thermal energy of consumption, WCFor the cold energy consumed in system one day.
Day operation overall cost CI:
CI=FGB+Fnet+FMT+FDG
Wherein, FGB、Fnet、FMT、FDGRespectively gas fired-boiler operating cost, to power grid purchases strategies, gas turbine operation cost,
New energy power output cost, KGB、Kb、KMT、Kw、KpvRespectively the cost coefficient of the every output unit thermal power of gas fired-boiler, to power grid
The cost coefficient of the every output unit electrical power of tou power price, the gas turbine of power purchase, wind turbine power output cost, photovoltaic power output at
This, Pw、PpvRespectively wind turbine, photovoltaic output power；
Non-renewable energy day's expenditure DI:
Wherein, m1、m2Respectively standard coal, the every output of gas fired-boiler consumed by the every production unit electrical power in traditional coal-burning power plant
Equivalence margin coal measures number consumed by unit thermal power.
Clean energy resource utilization rate:
4. a kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system according to claim 3, which is characterized in that
In the step 2), using the host and guest for combination weights method i-th of the two-level index of acquisition for considering Network Analysis Method and entropy assessment
See coupled weight pi, then have:
Wherein, ωiFor i-th of two-level index weight as obtained by Network Analysis Method, μiPass through entropy assessment for i-th of two-level index
Gained weight, αi、βiFor intermediate variable.
5. a kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system according to claim 3, which is characterized in that
The Demand Side Response assessment models are the summation that is multiplied of each two-level index and each two-level index coupled weight.
6. a kind of Demand Side Response appraisal procedure of Communities ' Integrated energy resource system according to claim 1, which is characterized in that
In the step 3), the scoring and each two-level index value before the response of side and after response, acquisition propose scoring according to demand
Maximum two-level index is risen, and carries out response optimization accordingly.
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| CN112465240A (en) * | 2020-12-03 | 2021-03-09 | 上海电力大学 | Cooperative game-based multi-park energy scheduling optimization method for comprehensive energy system |
| CN113159540A (en) * | 2021-04-07 | 2021-07-23 | 国家电网公司华中分部 | Demand side resource cascade calling method and device considering load value |
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| CN113554296A (en) * | 2021-07-16 | 2021-10-26 | 国网江苏省电力有限公司经济技术研究院 | Multi-index evaluation method for planning of park comprehensive energy system |
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