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Tabular method of non-intrusive electrical load decomposition

A non-intrusive technology for electric loads, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve problems such as blind spots and inability to track and decompose loads, and achieve the effects of reducing requirements, reducing calculations, and reducing costs

Active Publication Date: 2009-10-28
TIANDAQIUSHI ELECTRIC POWER HIGH TECH CO LTD
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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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  • Tabular method of non-intrusive electrical load decomposition
  • Tabular method of non-intrusive electrical load decomposition
  • Tabular method of non-intrusive electrical load decomposition

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Embodiment Construction

[0032] The table method of the non-intrusive electric load decomposition of the present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

[0033] Such as figure 1 As shown, the non-intrusive power load decomposition table method of the present invention can realize the decomposition of the power consumption ratio of the main electric equipment types inside the power load, and is used for power system load monitoring, power consumption analysis, load energy saving, load forecasting and Fields such as load modeling include the following steps:

[0034] Step 1: Offline statistics of unit current parameters of various electrical equipment;

[0035] Step 2: According to the actual situation of the power load, select the main type of electrical equipment;

[0036] Step 3: Select a power proportional interval to combine the power proportional vectors of the main electrical equipment inside all possible electric loads;

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Abstract

A tabular method of non-intrusive electrical load decomposition includes the following steps of: conducting off-line statistics of unit current parameters of various pieces of electric equipment; selecting the type of main electric equipment according to electrical load; selecting a power proportion spacing to combine the power proportion vectors of all possible main electric equipment inside the electrical load; obtaining the electrical load unit estimation current corresponding to the power proportions in an off-line way and forming a corresponding table of the power proportions and the unit estimation current; thinning the corresponding table of the power proportions and the unit estimation current into a plurality of sub corresponding tables according to the size of parameters of the unit estimation current; according to the size of a practically detected load current parameter, judging a sub corresponding table therein; and finding the load unit estimation current closest to the practically detected load current in the sub table, obtaining the power consumption proportion of the main electric equipment inside the load and realizing load decomposition. The tabular method can decrease the calculation quantity of load decomposition effectively and can be applied to the fields of load monitoring, electrical energy consumption analysis, load energy saving, load prediction, load modeling and the like in an electric power system.

Description

technical field [0001] The invention relates to a tabular method for electric load decomposition. In particular, it relates to a tabular method for non-intrusive power load decomposition that can be used for 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 ratio of different types of electrical equipment for power load (referred to as power load decomposition) data helps power companies understand the composition of power user loads, reasonably arrange load usage time ("peak shaving and valley filling"), and improve the utilization of the power 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 own unnecessa...

Claims

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Application Information

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IPC IPC(8): H02J3/00
Inventor 余贻鑫黎鹏葛少云黄纯华
Owner TIANDAQIUSHI ELECTRIC POWER HIGH TECH CO LTD
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