CN105023114A - Load demand cost allocation method of multi-user power user side - Google Patents

Abstract

The invention discloses a load demand cost allocation method of a multi-user power user side, relates to the technical field of power systems and aims to solve the technical problem of the saving of user power utilization cost. The method comprises the following steps: firstly, according to a maximum load demand and a maximum load declaration demand of each user and a load demand value at a practical load demand generation time point on the power user side, calculating the declaration demand contribution value and the maximum demand cost contribution value of each user on the power user side; and calculating a maximum demand cost factor of the user to further calculate the demand cost of each user of the power user side. The load demand cost allocation method is suitable for the load demand management of the multi-user power user side.

Description

The load requirement cost allocation method of multi-user's power consumer end

Technical field

The present invention relates to power system technology, particularly relate to a kind of technology of load requirement cost allocation method of multi-user's power consumer end.

Background technology

User side energy management system is responsible for the confession distribution of distribution user, and a usual user side energy management system comprises the some users kept separate accounts economically, power administration and user is played to the effect of forming a connecting link.

Peak load requirement refers to that power consumer is within the single charge calculation cycle (being generally the moon), the maximal value of time per unit electricity consumption average load, namely a certain moment of power consumer within the single charge calculation cycle uses the maximum active power value of electric energy.The electricity charge of peak load requirement and power consumer are directly related, control peak load requirement and can make enterprise's using electricity wisely cost, and power-generating enterprise also can reduce power equipment investment.

Power consumer end needs to multiple customer power supply, the maximum demand expense Cost Allocation of power consumer end to all users, user can be guided initiatively to reduce requirement, saves electric cost.But also there is no effective load requirement cost allocation method at present.

Summary of the invention

For the defect existed in above-mentioned prior art, technical matters to be solved by this invention is to provide a kind of load requirement cost allocation method saving multi-user's power consumer end of user power utilization cost.

In order to solve the problems of the technologies described above, the load requirement cost allocation method of a kind of multi-user's power consumer end provided by the present invention, it is characterized in that, concrete steps are as follows:

1) peak load obtaining all users of power consumer end declares requirement, and the peak load requirement of all users of power consumer end in metering period;

2) power consumer end actual maximum actual load requirement, requirement expense occurred in metering period is obtained, and the time of origin point Tcmd of maximum actual load requirement;

3) the load requirement value of all users at the time of origin point Tcmd of maximum actual load requirement of power consumer end is obtained;

4) what calculate each user of power consumer end declares requirement contribution margin and maximum demand expense contribution margin;

If Cmd (j) < Rmd (j), then Δ M (j)=Cmd (j);

If Cmd (j) >=Rmd (j), then Δ M (j)=Rmd (j)+η × (Cmd (j)-Rmd (j));

If md (j) < Rmd (j), then Δ N (j)=md (j);

If md (j) >=Rmd (j), then Δ N (j)=Rmd (j)+η × (md (j)-Rmd (j));

Wherein, the jth user that Δ M (j) is power consumer end declares requirement contribution margin, the maximum demand expense contribution margin of the jth user that Δ N (j) is power consumer end, the peak load requirement of a jth user in metering period that Cmd (j) is power consumer end, the peak load of the jth user that Rmd (j) is power consumer end declares requirement, η is penalty factor, the jth user that the representative value of η is 2, md (j) is power consumer end is in the load requirement value of maximum actual load requirement time of origin point Tcmd;

5) calculate user's maximum demand expense factor, specific formula for calculation is:

$Fq=1/\underset{j=1}{\overset{n}{\&Sigma;}}(\mathrm{\&Delta;}M\left(j\right)+\mathrm{\&Delta;}N\left(j\right))$

Wherein, Fq is user's maximum demand expense factor, and n is the number of users of power consumer end;

6) calculate the requirement expense of each user of power consumer end, specific formula for calculation is:

LD(j)＝CMDbill×Fq×(ΔM(j)+ΔN(j))

Wherein, the requirement cost value of the jth user that LD (j) is power consumer end, CMDbill is the requirement expense that power consumer end occurs in metering period.

The load requirement cost allocation method of multi-user's power consumer end provided by the invention; the real-time requirement of declaring when maximum demand and expense requirement occur of the maximum demand declared of user and user side is adopted to combine method; carry out expense allocation; user can be effectively guided to reduce user side requirement; protection customer charge demand, rationally saves user cost.

Accompanying drawing explanation

Fig. 1 is the process flow diagram of the load requirement cost allocation method of multi-user's power consumer end of the embodiment of the present invention.

Embodiment

Illustrate below in conjunction with accompanying drawing and embodiments of the invention are described in further detail; but the present embodiment is not limited to the present invention; every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in, the pause mark in the present invention all represent and relation.

As shown in Figure 1, the load requirement cost allocation method of a kind of multi-user's power consumer end that the embodiment of the present invention provides, it is characterized in that, concrete steps are as follows:

1) peak load obtaining all users of power consumer end declares requirement, and the peak load requirement of all users of power consumer end in metering period;

2) power consumer end actual maximum actual load requirement, requirement expense occurred in metering period is obtained, and the time of origin point Tcmd of maximum actual load requirement;

3) the load requirement value of all users at the time of origin point Tcmd of maximum actual load requirement of power consumer end is obtained;

4) what calculate each user of power consumer end declares requirement contribution margin and maximum demand expense contribution margin;

If Cmd (j) < Rmd (j), then Δ M (j)=Cmd (j);

If Cmd (j) >=Rmd (j), then Δ M (j)=Rmd (j)+η × (Cmd (j)-Rmd (j));

If md (j) < Rmd (j), then Δ N (j)=md (j);

If md (j) >=Rmd (j), then Δ N (j)=Rmd (j)+η × (md (j)-Rmd (j));

Wherein, the jth user that Δ M (j) is power consumer end declares requirement contribution margin, the maximum demand expense contribution margin of the jth user that Δ N (j) is power consumer end, the peak load requirement of a jth user in metering period that Cmd (j) is power consumer end, the peak load of the jth user that Rmd (j) is power consumer end declares requirement, η is penalty factor, the jth user that the representative value of η is 2, md (j) is power consumer end is in the load requirement value of maximum actual load requirement time of origin point Tcmd;

5) calculate user's maximum demand expense factor, specific formula for calculation is:

$Fq=1/\underset{j=1}{\overset{n}{\&Sigma;}}(\mathrm{\&Delta;}M\left(j\right)+\mathrm{\&Delta;}N\left(j\right))$

Wherein, Fq is user's maximum demand expense factor, and n is the number of users of power consumer end;

6) calculate the requirement expense of each user of power consumer end, specific formula for calculation is:

LD(j)＝CMDbill×Fq×(ΔM(j)+ΔN(j))

Wherein, the requirement cost value of the jth user that LD (j) is power consumer end, CMDbill is the requirement expense that power consumer end occurs in metering period.

In the embodiment of the present invention, Cmd (j), Rmd (j), md (j), Tcmd can obtain from energy management system, if md (j) not collection value, can be obtained by the average load value calculating 15 minutes, load value all refers to active power value.

Claims (1)

1. a load requirement cost allocation method for multi-user's power consumer end, it is characterized in that, concrete steps are as follows:

1) peak load obtaining all users of power consumer end declares requirement, and the peak load requirement of all users of power consumer end in metering period;

2) power consumer end actual maximum actual load requirement, requirement expense occurred in metering period is obtained, and the time of origin point Tcmd of maximum actual load requirement;

3) the load requirement value of all users at the time of origin point Tcmd of maximum actual load requirement of power consumer end is obtained;

4) what calculate each user of power consumer end declares requirement contribution margin and maximum demand expense contribution margin;

If Cmd (j) < Rmd (j), then Δ M (j)=Cmd (j);

If Cmd (j) >=Rmd (j), then Δ M (j)=Rmd (j)+η × (Cmd (j)-Rmd (j));

If md (j) < Rmd (j), then Δ N (j)=md (j);

If md (j) >=Rmd (j), then Δ N (j)=Rmd (j)+η × (md (j)-Rmd (j));

Wherein, the jth user that Δ M (j) is power consumer end declares requirement contribution margin, the maximum demand expense contribution margin of the jth user that Δ N (j) is power consumer end, the peak load requirement of a jth user in metering period that Cmd (j) is power consumer end, the peak load of the jth user that Rmd (j) is power consumer end declares requirement, η is penalty factor, the jth user that the representative value of η is 2, md (j) is power consumer end is in the load requirement value of maximum actual load requirement time of origin point Tcmd;

5) calculate user's maximum demand expense factor, specific formula for calculation is:

$Fq=1/\underset{j=1}{\overset{n}{\&Sigma;}}(\mathrm{\&Delta;}M\left(j\right)+\mathrm{\&Delta;}N\left(j\right))$

Wherein, Fq is user's maximum demand expense factor, and n is the number of users of power consumer end;

6) calculate the requirement expense of each user of power consumer end, specific formula for calculation is:

LD(j)＝CMDbill×Fq×(ΔM(j)+ΔN(j))

Wherein, the requirement cost value of the jth user that LD (j) is power consumer end, CMDbill is the requirement expense that power consumer end occurs in metering period.