Method for real time sorting non-intrusion type electric load

A non-intrusive technology for electric loads, applied in load forecasting and load modeling, power system load monitoring, power consumption analysis, and load energy-saving fields. It can solve problems such as blind spots and unavailable load tracking and decomposition, and achieve high precision and calculation speed. Fast and stable effect

Active Publication Date: 2008-10-08
TIANJIN TRANSENERGY TECH
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AI Technical Summary

Problems solved by technology

When different types of electrical equipment start or quit running at the same time, this method cannot perform effective load tracking and decomposition, and there is a huge blind spot in the method

Method used

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  • Method for real time sorting non-intrusion type electric load
  • Method for real time sorting non-intrusion type electric load
  • Method for real time sorting non-intrusion type electric load

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the drawings and embodiments.

[0017] See figure 1 , The present invention proposes a non-intrusive power load real-time decomposition method to realize the real-time decomposition of the power consumption proportions of the main electrical equipment types within the power load, which is used for power system load monitoring, power consumption analysis, load energy saving, and load forecasting. Fields such as load modeling and load modeling are described in detail as follows:

[0018] Step 1: Offline statistics of the voltage, current and power characteristics (including fundamental waves and harmonics) of various electrical equipment in steady state and normal operation;

[0019] Step 2: Select the type of main electrical equipment according to the actual situation of the load;

[0020] The third step: online real-time measurement of voltage, current and power data at the power load port, and perfo...

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Abstract

The invention relates to a non-intruding type electric load real time decomposition method comprising off-line extracting electric characteristic parameter when consumer is working in stable state normally; choosing the main comsumer type based on practical situation of the load; on-line real time measuring voltage, current and power data of electric load port and performing harmonic analysis; weight synthetizing the choosed electric characteristic parameter of the electric load main comsumer type to approximatively estimate the actual measured current and power of the electric load; optimal solving the weight coefficient to find out the weight coefficient of each of main comsumer type and obtain the power consumption ratio of the electric load internal main consumer type for realizing load decomposition. The invention can not intrude into load interior, namely on-line obtaining power consumption ratio of the electric load internal main type consumer, the decomposition method can not only have higher precision and better stability, but also have quick computing speed to satisfy on-line real time decomposition request.

Description

Technical field [0001] The invention relates to a non-intrusive power load real-time decomposition method, and belongs to the technical fields of power system load monitoring, power consumption analysis, load energy saving, load forecasting and load modeling. Background technique [0002] The real-time decomposition of the power consumption proportions of different types of electrical equipment (power load decomposition) data helps the power company understand the composition of the power user load, rationally arrange the load usage time ("peak cut and fill valley"), and improve the utilization of the grid Rate and reduce power system investment. Load decomposition data can also improve the accuracy of power load forecasting and provide a more accurate basis for power system planning (including expansion planning and operation planning). Power users can also reduce their unnecessary energy expenditure through data analysis, so as to achieve the purpose of energy saving and consum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G01R19/00G01R21/00G01R31/00
Inventor 余贻鑫黎鹏贾宏杰黄纯华
Owner TIANJIN TRANSENERGY TECH
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