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Loss reduction comprehensive application system based on cloud electricity intelligent cloud platform and analysis method

An application system and cloud platform technology, applied in the field of loss reduction comprehensive application system and analysis, can solve the problems of difficult and complicated data collection, hindering the accuracy of calculation, etc., to achieve the effect of improving security and helping management

Active Publication Date: 2020-04-21
云南电网有限责任公司丽江供电局
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, there have been management systems developed for power grid loss reduction. The emergence of these systems has provided great convenience for the power grid loss reduction work, but these systems still have many functional deficiencies, mainly including: Difficulty in data collection , complexity, etc. Efficient and accurate data collection is an important premise guarantee for accurate calculation results of power grid line loss, so the problem of data collection has become the key to hindering the accuracy of grid line loss calculation by the power grid loss reduction management system

Method used

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  • Loss reduction comprehensive application system based on cloud electricity intelligent cloud platform and analysis method
  • Loss reduction comprehensive application system based on cloud electricity intelligent cloud platform and analysis method
  • Loss reduction comprehensive application system based on cloud electricity intelligent cloud platform and analysis method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Embodiment 1: limited conditions, such as Figure 5 As shown, the high-voltage 110kV substation transfers power to the 35kV substation model, assuming that the reactive power Aq110=312kVar.h obtained from the Yundian Zhiyun platform in a certain 15 minutes, the active power is Ap110=900kW.h, and the active power of the 35kV substation As35 =852kW.h, the voltage U=110kV of this section of grid line, then according to the formula:

[0088] line current Calculated: The value from the model of the same line to the model database is r=0.0008, l=62.2km, according to the formula: Ri=r*l, then the theoretical line loss Ai=3*I2*Ri*t=0.0008×62.2×20 2 ×3×0.25=14.928kW.h;

[0089] Assuming that the load loss Pf of the S35 transformer is queried = 10kW, the theoretical line loss of the transformer At = iron loss Ar + copper loss Ac, where Ar = Pf*t = 10kW*0.25h = 2.5kW.h, the equivalent resistance of the transformer is according to the formula : Rt=(Pk×Ue 2 ) / Se 2 , can be ...

Embodiment 2

[0091] Embodiment 2: limited conditions, such as Image 6 As shown, in order to calculate the line loss of the power grid for a certain 15 minutes, first obtain the active power Ap = 40kW. The total power of the transformer is 37kW.h (A1=14.4kW.h, A2=22.6kW.h), the models of lines L1, L2, and L3 are the same, and the voltage U of this section of the grid line is U=10kV; then

[0092] Transformer distribution current is: I1=Itotal*A1 / (A1+A2)=3.89, I2=Itotal*A2 / (A1+A2)=6.11;

[0093] Look up the table to get unit resistance r=0.0001, l1=3km, l2=5km, l3=10km; according to the formula: Ri=r*l; line loss Ai3=3*I2*Ri*t=3×10 2 ×0.001×10×0.25=0.75kW.h, Ai1=3*I12*Ri*t=3×3.89 2 ×0.001×3×0.25=0.0088kW.h; Ai2=3*I22*Ri*t=3×6.11 2 ×0.001×5×0.25=0.064kW.h;

[0094] The load loss of transformer 1 and transformer 2 is Pf1=Pf2=0.32kw, and the total iron loss of the two transformers in this period is Ar total=(Pf1+Pf2)*t=(0.32+0.32)*0.25=0.16kW.h;

[0095] Calculate the equivalent resis...

Embodiment 3

[0097] Embodiment 3: limiting condition: such as Figure 7 As shown, in a certain 15-minute period of calculating the power grid, the output active power of S35 power station is Ap=40kW.h, the reactive power is Aq=14kW.h, the output active power of small hydropower is 10kW.h, and the reactive power is 3kW.h; the models of the two transformers are the same, the current power of transformer 1 is 24.2kW.h, and the current power of transformer 2 is 24.2kW.h. Assuming that the models of the lines are the same, the equivalent resistance of transformer 1 is Rt1=0.02, and the equivalent resistance of transformer 2 is Rt2=0.02,

[0098] The voltage U=10kV of the power grid line in this section, then first obtain the current on the main transmission line: Then distribute the current according to the principle of the nearest load: I1=(9.78+2.41)*24.2 / (24.2+24.2)=6.095(A), I2=6.095(A), then I4=I3-I1=3.685(A);

[0099] Assume that the models of the lines are the same, and the unit r...

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Abstract

The invention discloses a loss reduction comprehensive application system and analysis method based on a cloud electric intelligent cloud platform. The system is built based on the cloud electric intelligent cloud platform, and comprises the loss reduction comprehensive application system and analysis background service based on the cloud electric intelligent cloud platform, and a remote PC end. The method comprises the following steps: centrally, uniformly and normatively storing core data of an enterprise to a big data platform by utilizing a cloud electric intelligent cloud platform, and sending the data to a loss reduction comprehensive application system and an analysis background service based on the cloud electric intelligent cloud platform; obtaining data required by theoretical line loss and analyzing and calculating the theoretical line loss through the cloud electric intelligent cloud platform by utilizing a loss reduction comprehensive application system based on the cloudelectric intelligent cloud platform and an analysis background service. According to the invention, based on the data collection problem, the real-time collection of the data is realized by utilizingthe data docking with the cloud electric intelligent cloud platform, and the accuracy and effectiveness of the data are ensured.

Description

technical field [0001] The invention relates to the field of theoretical line loss calculation, in particular to a comprehensive loss reduction application system and analysis method based on a cloud power intelligent cloud platform. Background technique [0002] In the various links of power transmission, power transformation, power distribution, and power consumption in the power grid, the power loss of the power grid, referred to as line loss, is characterized by the loss of electric energy in the surrounding space of the power grid components in the form of heat and corona. This means that the line loss of the power grid is a natural physical phenomenon; it is also an inevitable part of the power grid operation. However, there are still avoidable and unreasonable parts of the line loss. Different management methods and measures can effectively reduce the line loss of the power grid and control it within a reasonable or nationally specified value. Power grid workers have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F16/29G06Q50/06
CPCG06Q10/06393G06F16/29G06Q50/06Y04S10/50Y02E40/70
Inventor 朱凌霄谭向东袁普中周炎黄和丽星吴全才何鑫
Owner 云南电网有限责任公司丽江供电局
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