CN110222943A - A kind of electric vehicle energy consumption saving evaluation method - Google Patents
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Abstract
The invention discloses a kind of electric vehicle energy consumptions to save evaluation method, belongs to electric vehicle engineering field.Existing electric vehicle method for estimating power consumption can not directly embody different vehicle saving energy equivalent；The source that electric energy cannot be distinguished leads to the saving calculated energy equivalent inaccuracy.The substitution of electric car charge volume is converted to equivalent fuel oil substitution amount in conjunction with sales volume weighted calculation electric car fuel oil substitution rate with the fuel vehicle per 100 km oil consumption of vehicle according to electric car per 100 km power consumption and comparison by the present invention.The present invention provides a kind of based on real time charging data, and the electric energy of separate sources is distinguished, and then it can accurately calculate a certain or certain vehicle or certain region electric car saving energy equivalent, meet the needs of different user group knows corresponding electric car saving energy equivalent, is conducive to electric vehicle and promotes.
Description
Technical field
The present invention relates to a kind of electric vehicle energy consumptions to save evaluation method, belongs to electric vehicle engineering field.
Background technique
Traditional electric car Estimation of energy consumption generally uses sampling or mean value method, calculates total saving energy equivalent,
But electric car can be divided into according to its application field: passenger car, bus, commercial vehicle etc., its power consumption difference of different automobile types
Larger, even if same vehicle, different behaviours in service, energy consumption is also identical.
Existing method for estimating power consumption can only calculate total saving energy equivalent, can not be independent according to specific electric car
Calculated savings energy equivalent, cannot directly embody a certain or certain vehicle or certain region electric car energy consumption saves equivalent, Wu Faman
Sufficient different user group knows the demand of corresponding electric car saving energy equivalent.
And since domestic energy source is more complicated, there are a water power, thermoelectricity, energy source ratio in different time periods is not yet
Together, water power cleannes are higher, and energy consumption saving is larger, and the saving of thermoelectricity energy consumption is less, therefore electric car uses different types of electricity
Can, saving is also different with energy equivalent, if inaccuracy distinguishes the source of electric energy, the saving that will lead to calculating is inaccurate with energy equivalent
Really.
Further, traditional electric car saving can not obtain dynamically saving with can work as in real time with energy equivalent calculation method
Amount is unfavorable for being unfavorable for electric car popularization to the public intuitive saving energy equivalent for showing electric car.
Summary of the invention
In view of the drawbacks of the prior art, the purpose of the present invention is to provide one kind to be based on real time charging data, can be to not
It is distinguished with energy source, and the calculating of a certain or certain vehicle or certain region electric car saving energy equivalent can be calculated
Accurately, evaluation method is saved conducive to the electric vehicle energy consumption that electric vehicle is promoted.
Another object of the present invention is to provide a kind of charge datas according to real-time update, and providing one kind can open up in real time
Show that the electric vehicle energy consumption of a certain or certain vehicle or certain region electric car saving energy equivalent saves evaluation method.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of electric vehicle energy consumption saving evaluation method, comprising the following steps:
The first step obtains charge data according to the sampling period of setting in real time
The charge data be dispatch access data include: a certain or the charge volume of certain vehicle or certain region electric car with
And energy source data；
Second step calculates a certain or certain vehicle or the equivalent fuel oil substitution amount of certain region electric car
According to electric car per 100 km power consumption and comparison with vehicle fuel vehicle per 100 km oil consumption, in conjunction with sales volume
The substitution of corresponding electric car charge volume is converted to equivalent fuel oil and substituted by the corresponding electric car fuel oil substitution rate of weighted calculation
Amount；According to equivalent fuel oil substitute meter calculate the electric car etc. effectiveness energy equivalent；
Third step calculates thermoelectricity accounting θ in charge period current sample period energy source according to scheduling access data；
4th step, according to a certain or certain vehicle or certain region electric car charge capacity and the real-time electric energy of charge period come
Source ratio calculates the power generation energy equivalent of corresponding electric car；
5th step, according to the effectiveness such as electric car energy equivalent and power generation with energy equivalent data obtain a certain or certain vehicle or certain
Saving energy equivalent of the region electric car within a certain sampling period.
The present invention provides one kind based on real time charging data, and distinguishes to the electric energy of separate sources, and then can be quasi-
A certain or certain vehicle or certain region electric car saving energy equivalent are really calculated, meets different user group and knows corresponding electronic vapour
The demand of vehicle saving energy equivalent is conducive to electric vehicle and promotes.
Charge volume refers to as the core operation data of electric automobile operation enterprise and the core of electric car industry development
Mark, is mainly reflected in:
1) electric car as entirely by electric energy from producing to transmitting again to the complete chain of consumption, since electrically-charging equipment is defeated
Electricity out=electric car input electricity=electric car consumption energy, charge volume is by electrically-charging equipment and electric car
Be closely connected tie together.
2) electric car is promoted horizontal, finally also needs the raising from electric car real frequency of use and application range
On embody, and with electric car the use of the index of direct correlation is exactly electric car charge volume, it can directly reflect electronic vapour
Vehicle really runs service condition.
3) compared with government, Che Qi, social operator, the charge volume that Guo Wang company is responsible for centralized system is accurate, comprehensive, real-time
Property it is high, provide possibility for the Subdividing Processing of data.
Therefore, the present invention is using electric car charge volume as input data.
Although electric car charge volume more can embody to overall scientific electric car operation and service condition, country
The important original intention for promoting electric car is to replace fossil fuel with renewable energy, it is ensured that national energy security.In addition, energy saving
Environmental protection is also the focus place of general interest, and electric car use can reduce the greenhouse gases and dirt that fossil fuel burning generates
Object discharge is contaminated, air quality is improved, it is therefore desirable to the amount of fuel of electric car charging equivalent substitution accurately be calculated, in turn
Energy input brought by equivalent fuel-engined vehicle energy consumption and electric car charge volume is calculated, the saving of electric car is finally obtained
Use energy equivalent.
Further include the 6th step as optimization technique measure, a certain or certain vehicle or certain region electric car are adopted in difference
Saving in the sample period carries out real-time exhibition with energy equivalent；The unit in the sampling period be the second point or when or day or the moon or season
Degree or year, those skilled in the art can select data collection cycle according to actual needs.
The present invention provides effective technological means, is integrated, is sorted out to charge data, calculates different electric cars in reality
Shi Jieyue energy equivalent, and real-time, Dynamic Display can be carried out according to the charge data of real-time update, it is conducive to public intuitive
It shows the saving energy equivalent of electric vehicle, is conducive to electric vehicle and promotes, scheme is simple and practical, and scheme conscientiously may be used.
As optimization technique measure, the saving of a certain electric car in a certain period of time is accumulated with energy equivalent, energy
Access a certain electric car saving energy equivalent total in certain time period；The electric car in a certain region a certain
Saving in sampling period is accumulated with energy equivalent, and it is total within a certain sampling period can to obtain the electric car in a certain region
Saving energy equivalent；The saving of electric car in a certain region in a certain period of time is accumulated with energy equivalent, can be obtained
Electric car in a certain region saving energy equivalent total within certain period；The electric car in several regions in some time
Between saving in section accumulated with energy equivalent, the saving energy total within certain period of the electric car in several regions can be obtained
Equivalent.Those skilled in the art calculate according to specific needs in the corresponding period, the total energy consumption of electric car in corresponding region
Equivalent is saved, all types of user demand is met, and then carries out real-time, the total energy consumption saving of electric car in several regions of Dynamic Display
Equivalent is conducive to electric vehicle and promotes, scheme is simple and practical, scheme conducive to the public intuitive saving energy equivalent for showing electric vehicle
Conscientiously may be used.
As optimization technique measure, different according to the application vehicle of electric car, electric car is divided into passenger car, public transport
Vehicle, commercial vehicle.Current electric vehicle application vehicle is more, and the corresponding fuel vehicle of different vehicles is also different, riding electric vehicle pair
The fuel vehicle answered is usually to use gasoline, and the corresponding fuel vehicle of electric bus is usually to use diesel oil, causes to calculate energy consumption section
The reference standard of about equivalent is different, therefore is distinguished according to the vehicle of electric car, is convenient for subsequent accurate calculating.
As optimization technique measure, the thermoelectricity includes the electric energy of fire coal, combustion gas, oil fired power plant's manufacture.
As optimization technique measure,
The calculation formula of the thermoelectricity accounting θ is as follows:
Refreshed according to electric network data sampling interval Δ T, whole day is sharedA sampling period
In any one sampling period, calculation formula is as follows:
Thermoelectricity accounting θ in certain sampling period energy source:
In formula:
L --- whole society's generated output (containing outer incoming call) in the sampling period；
L1 --- thermoelectricity generated output；
L′n--- the external transmission power of nth；
θ′n--- thermoelectricity accounting in the external transmission of electricity of nth.
As optimization technique measure,
The calculation method of the equivalent fuel oil substitution amount Q of a certain electric car are as follows:
N indicates a certain or certain vehicle or certain region electric car
In formula:
Cn--- a certain or certain vehicle or certain charge capacity of region electric car within a certain sampling period, kwh；
EFCn--- with vehicle electric automobile oil optoelectronic conversion ratio, L/kwh；
fn--- with the electric car with vehicle fuel-engined vehicle fuel consumption per hundred kilometers, L/100km；
en--- with hundred kilometers of power consumption of vehicle electric car, kwh/100km.
To simplify the calculation, hundred kilometers of power consumption of a certain electric car can be using hundred kilometers of consumptions with model electric car
Electricity data is calculated.
Since electric car is promoted still in its infancy, electric automobile market occupancy is far smaller than fuel vehicle, therefore
It should be selected when calculating fuel oil substitution with fuel vehicle similar in electric car size, function as the object for calculating substitution rate.
Electric car mainly applies vehicle for electric passenger vehicle vehicle and heavy-duty commercial vehicle vehicle at present, and wherein passenger car is
Refer to that " term and definition of automobile and trailer type " (GB/T 3730.1-2001) 2.1.1.1 money to 2.1.1.10 money provides
, maximum design total mass be no more than 3500 kilograms of vehicle.Heavy-duty commercial vehicle is presently mainly car vehicle, and 2016, newly
Energy car accounts for bus market specific gravity up to 23.86%, and the sales volume structure accounting that bus segments market in integral new-energy passenger is high
Up to 81%, become the force at the core in integral new-energy passenger market.And passenger car market uses petrol engine, heavy-duty commercial vehicle substantially
Market uses diesel engine substantially, therefore electric car is divided into passenger car group and heavy-duty commercial vehicle group is respectively calculated,
It is determined eventually by weighted average is comprehensive.
As optimization technique measure,
A certain vehicle fuel-engined vehicle energy equivalent (gram mark coal) calculation formula are as follows:
Efn=convm×Qn×ρgm
ρgm--- fuel density；
convm--- the quasi- coal measures number of fuel oil signature.
The fuel oil can be divided into gasoline and diesel oil, according to available data:
ρg1--- the gasoline density under 20 DEG C (293.15K), 0.745kg/L=745g/L；
ρg2--- the diesel oil density under 20 DEG C (293.15K), 0.83kg/L=830g/L；
Conv1 --- the quasi- coal measures number of gasoline signature, 1.4714；
Conv2 --- the quasi- coal measures number of diesel oil signature, 1.4571.
As optimization technique measure,
A certain or certain vehicle or the corresponding power generation energy equivalent E of certain region electric car charge volumeen(gram mark coal) calculates public
Formula are as follows:
E0--- fired power generating unit consumption of standard coal for power generation takes 298g/kwh；
Cn--- a certain or certain vehicle or charge capacity in certain region electric car a certain sampling period, kwh；
η1--- the power network line proportion of goods damageds (4.19%)；
η2--- charge loss rate (5%)；
θ --- thermoelectricity (including fire coal, combustion gas, oil fired power plant) accounting in current sample period energy source.
As optimization technique measure,
A certain or certain vehicle or certain region electric car energy consumption save calculation formula are as follows:
ΔEn=Efn-Een。
The present invention obtains a certain or certain vehicle or certain area with energy equivalent according to equivalent fuel-engined vehicle energy equivalent and power generation
Domain electric car saving energy equivalent within a certain sampling period；And then as needed, total saving energy equivalent can be calculated.
The present invention provides a kind of objective, true, reflection electric vehicle saving energy equivalent evaluation methods, not only improve political affairs
The science of mansion policies, decision rule, it is perspective, or operator and vehicle enterprise analysis industrial trend formulate business
Strategy seeks mutual beneficial co-operation to provide reference.
The present invention combines data discrete before as a kind of evaluation method, comprehensive to embody electric car
Industry electric vehicle saving energy equivalent, lateral comparison and quantitatively evaluating between ground section, industry provide data supporting, are also same
One area, same industry carry out vertical analysis and trend prediction provides data reference.
The present invention shows electric automobile energy saving emission reduction effect to the common people with concise direct mode, make electric car green,
The characteristics of energy-saving and environmental protection, is rooted in the hearts of the people.The misgivings that neutralizing " charging anxiety " and " mileage anxiety " etc. hinder electric car to promote, from
And promote the public relations service of electric car, enhancing government, industry, the public confidence to Development of Electric Vehicles.
Compared with prior art, the invention has the following advantages:
The present invention provides one kind based on real time charging data, and distinguishes to the electric energy of separate sources, and then can be quasi-
A certain or certain vehicle or certain region electric car saving energy equivalent are really calculated, meets different user group and knows corresponding electronic vapour
The demand of vehicle saving energy equivalent is conducive to electric vehicle and promotes.
The present invention provides effective technological means, is integrated, is sorted out to charge data, calculates different electric cars in reality
Shi Jieyue energy equivalent, and real-time, Dynamic Display can be carried out according to the charge data of real-time update, it is conducive to public intuitive
It shows the saving energy equivalent of electric vehicle, is conducive to electric vehicle and promotes, scheme is simple and practical, and scheme conscientiously may be used.
Detailed description of the invention
Fig. 1 is calculation flow chart of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
On the contrary, the present invention covers any substitution done on the essence and scope of the present invention being defined by the claims, repairs
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to of the invention thin
It is detailed to describe some specific detail sections in section description.The part without these details for this vehicle technical staff
The present invention can also be understood completely in description.
As shown in Figure 1, a kind of electric vehicle energy consumption saves the specific embodiment of evaluation method, according to electric car per 100 km
Power consumption and comparison with vehicle fuel vehicle per 100 km oil consumption, in conjunction with sales volume weighted calculation electric car fuel oil substitution rate,
The substitution of electric car charge volume is converted to equivalent fuel oil substitution amount；Meter, which is substituted, according to equivalent fuel oil calculates the electric car
Etc. effectiveness energy equivalent；Obtain electric car saving with can work as with energy equivalent according to equivalent fuel-engined vehicle energy equivalent and power generation
Amount.It is different according to the application vehicle of electric car, electric car is divided into riding electric vehicle, electric bus.
Known to rule of thumb:
The similar fuel-engined vehicle fuel consumption per hundred kilometers of riding electric vehicle: f1=6.56,
The similar fuel-engined vehicle fuel consumption per hundred kilometers of electric bus: f2=40,
Hundred kilometers of power consumption of riding electric vehicle electric car: el=17,
Hundred kilometers of power consumption of electric bus electric car: e2=90,
Riding electric automobile oil electricity conversion ratio:
Electric bus oil optoelectronic conversion ratio:
Total fuel oil substitution amount:
In formula: Q1For equivalent riding electric vehicle fuel oil substitution amount, Q2For equivalent electric bus fuel oil substitution amount, C1
For riding electric vehicle charge capacity；C2For electric bus charge capacity.
Since electric car is promoted still in its infancy, electric automobile market occupancy is far smaller than fuel vehicle, therefore
It should be selected when calculating fuel oil substitution with fuel vehicle similar in electric car size, function as the object for calculating substitution rate.
Electric car mainly applies vehicle for electric passenger vehicle vehicle and heavy-duty commercial vehicle vehicle at present, and wherein passenger car is
Refer to that " term and definition of automobile and trailer type " (GB/T 3730.1-2001) 2.1.1.1 money to 2.1.1.10 money provides
, maximum design total mass be no more than 3500 kilograms of vehicle.Heavy-duty commercial vehicle is presently mainly car vehicle, and 2016, newly
Energy car accounts for bus market specific gravity up to 23.86%, and the sales volume structure accounting that bus segments market in integral new-energy passenger is high
Up to 81%, become the force at the core in integral new-energy passenger market.And passenger car market uses petrol engine, heavy-duty commercial vehicle substantially
Market uses diesel engine substantially, therefore electric car is divided into passenger car group and heavy-duty commercial vehicle group is respectively calculated,
It is determined eventually by weighted average is comprehensive.
Equivalent fuel-engined vehicle is with energy equivalent (gram mark coal)
Ef=conv1 × Q1×ρg1+conv2×Q2×ρg2
ρg1--- the gasoline density under 20 DEG C (293.15K), 0.745kg/L=745g/L；
ρg2--- the diesel oil density under 20 DEG C (293.15K), 0.83kg/L=830g/L/L；
Conv1 --- the quasi- coal measures number of gasoline signature, 1.4714；
Conv2 --- the quasi- coal measures number of diesel oil signature, 1.4571.
The present invention carries out formulation calculating with energy equivalent to equivalent fuel-engined vehicle, and then can be exchanged into number according to formula model
The form of word, curve, figure can overcome defect in background technique, and formulation, which calculates, intuitive, succinctly, clearly to be reflected
Fuel-engined vehicle energy equivalent, and then available data can be integrated with depth, Mining Platform potentiality are intuitive to reflect Development of Electric Vehicles water
Flat and trend turns to the raising in efficiency by the simple accumulation on pure quantity for electric automobile development pattern and establishes data branch
Support.
The value of θ:
Refreshed according to electric network data sampling interval Δ T, whole day is sharedA sampling period
In any one sampling period, calculation formula is as follows:
In formula:
L --- whole society's generated output in the sampling period comprising outer incoming call；
L1--- Zhejiang Province's thermoelectricity generated output；
L′n--- the external transmission power in nth Zhejiang Province；
θ′n--- thermoelectricity accounting in the external transmission of electricity in nth Zhejiang Province, it at present can be based on 0.
Calculation method is reasonable, detailed, practical.
Power generation energy equivalent Ee(gram mark coal)
E0--- Zhejiang fired power generating unit consumption of standard coal for power generation takes 298g/kwh
C --- certain region electric car charge capacity in the corresponding sampling period, kwh；
n1--- the power network line proportion of goods damageds empirically take 4.19%；
η2--- charge loss rate empirically takes 5%；
θ --- thermoelectricity in current sample period energy source comprising fire coal, combustion gas, oil fired power plant's accounting.
Calculate certain region electric car saving energy equivalent formula in the sampling period are as follows:
Δ E=Ef-Ee=480.132C1+536.97C2-235.52(C1+C2)
Wherein 480.132C1+536.97C2For fuel-engined vehicle energy equivalent Ef(gram mark coal)；235.52(C1+C2) it is power generation
With energy equivalent Ee(gram mark coal).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of electric vehicle energy consumption saves evaluation method, which comprises the following steps:
The first step obtains charge data according to the sampling period of setting in real time
It includes: a certain or the charge volume and electricity of certain vehicle or certain region electric car that the charge data, which dispatches access data,
It can derived data；
Second step calculates a certain or certain vehicle or the equivalent fuel oil substitution amount of certain region electric car
According to electric car per 100 km power consumption and comparison with the fuel vehicle per 100 km oil consumption of vehicle, weighted in conjunction with sales volume
Corresponding electric car fuel oil substitution rate is calculated, the substitution of corresponding electric car charge volume is converted to equivalent fuel oil substitution amount；Root
According to equivalent fuel oil substitution meter calculate the electric car etc. effectiveness energy equivalent；
Third step calculates thermoelectricity accounting θ in charge period current sample period energy source according to scheduling access data；
4th step, according to a certain or certain vehicle or certain region electric car charge capacity and the real-time energy source ratio of charge period
Example calculates the power generation energy equivalent of corresponding electric car；
5th step obtains a certain or certain vehicle or certain region with energy equivalent data according to the effectiveness such as electric car energy equivalent and power generation
Saving energy equivalent of the electric car within a certain sampling period.
2. a kind of electric vehicle energy consumption as described in claim 1 saves evaluation method, which is characterized in that it further include the 6th step, it is right
A certain or certain vehicle or certain saving of region electric car in Different sampling period carry out real-time exhibition with energy equivalent；It is described to adopt
The unit in sample period be the second point or when or day or the moon or season or year.
3. a kind of electric vehicle energy consumption as described in claim 1 saves evaluation method, which is characterized in that
The saving of a certain electric car in a certain period of time is accumulated with energy equivalent, a certain electric car can be obtained and existed
The total saving energy equivalent of certain time period；Saving of the electric car in a certain region within a certain sampling period with can work as
Amount accumulation, can obtain the saving energy equivalent total within a certain sampling period of the electric car in a certain region；A certain area
The saving of electric car in a certain period of time in domain is accumulated with energy equivalent, and the electric car that can be obtained in a certain region exists
Total saving energy equivalent in certain period；Saving energy equivalent of the electric car in several regions within certain period is tired out
Product, can obtain the saving energy equivalent total within certain period of the electric car in several regions.
4. a kind of electric vehicle energy consumption as described in claim 1 saves evaluation method, which is characterized in that according to answering for electric car
With vehicle difference, electric car is divided into passenger car, bus, commercial vehicle.
5. a kind of electric vehicle energy consumption as described in claim 1 saves evaluation method, which is characterized in that the thermoelectricity includes combustion
The electric energy that coal, combustion gas, oil fired power plant manufacture.
6. a kind of electric vehicle energy consumption a method as claimed in any one of claims 1 to 5 saves evaluation method, which is characterized in that
The calculation formula of the thermoelectricity accounting θ is as follows:
Refreshed according to electric network data sampling interval Δ T, whole day is sharedA sampling period
In any one sampling period, calculation formula is as follows:
Thermoelectricity accounting θ in certain sampling period energy source:
In formula:
L --- whole society's generated output in the sampling period；
L1--- thermoelectricity generated output；
L′n--- the external transmission power of nth；
θ′n--- thermoelectricity accounting in the external transmission of electricity of nth.
7. a kind of electric vehicle energy consumption as claimed in claim 6 saves evaluation method, which is characterized in that
The calculation method of described a certain or certain vehicle or the equivalent fuel oil substitution amount Q of certain region electric car are as follows:
N indicates a certain or certain vehicle or certain region electric car
In formula:
Cn--- a certain or certain vehicle or certain charge capacity of region electric car within a certain sampling period；
EFCn--- with vehicle electric automobile oil optoelectronic conversion ratio；
fn--- with the electric car with vehicle fuel-engined vehicle fuel consumption per hundred kilometers；
en--- with hundred kilometers of power consumption of vehicle electric car.
8. a kind of electric vehicle energy consumption as claimed in claim 7 saves evaluation method, which is characterized in that
A certain vehicle fuel-engined vehicle energy equivalent calculation formula are as follows:
Efn=convm×Qn×ρgm
ρgm--- fuel density；
convm--- the quasi- coal measures number of fuel oil signature.
9. a kind of electric vehicle energy consumption as claimed in claim 8 saves evaluation method, which is characterized in that
A certain or certain vehicle or the corresponding power generation energy equivalent E of certain region electric car charge volumeenCalculation formula are as follows:
E0--- fired power generating unit consumption of standard coal for power generation；
Cn--- a certain or certain vehicle or charge capacity in certain region electric car a certain sampling period；
η1--- the power network line proportion of goods damageds；
η2--- charge loss rate；
θ --- thermoelectricity accounting in current sample period energy source.
10. a kind of electric vehicle energy consumption as claimed in claim 9 saves evaluation method, which is characterized in that
A certain or certain vehicle or certain region electric car energy consumption save calculation formula are as follows:
ΔEn=Efn-Een
A certain or certain vehicle or certain region electric car are obtained with energy equivalent according to equivalent fuel-engined vehicle energy equivalent and power generation
The saving energy equivalent within a certain sampling period；And then as needed, total saving energy equivalent can be calculated.
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