A decision-making method for distribution network sequence control transformation based on safety efficiency cost
A technology of sequence control and decision-making method, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems that economic decision-making methods cannot evaluate decisions, etc., and achieve the effect of strengthening promotion value, increasing accuracy, and improving transformation efficiency
Active Publication Date: 2021-03-16
STATE GRID CORP OF CHINA +2
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Problems solved by technology
However, the sequential control transformation of electrical equipment in the power grid is a project with huge investment and a large amount of equipment to be transformed. Traditional economic decision-making methods cannot effectively evaluate and make decisions on it.
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Embodiment 1
[0061] A decision-making method for sequential control transformation of distribution network based on security efficiency cost, using IEEE24 node system (for its network topology diagram, see figure 1 , the parameter settings of the transformed network are set in Table 1) as the object, and the following steps are followed in turn:
[0062] Step A: Analyze the sequence control transformation process of the distribution network, determine the transformation process, and establish a three-dimensional decision-making model for the transformation time, transformation location and transformation method. In the IEEE24 node structure, No. 1 to No. 10 stations are low-voltage side stations, and No. 11 to 24 stations are high-voltage side stations, among which 17 stations carry loads. Therefore, during the transformation of this calculation example, according to the characteristics of the voltage part and the geographical division of the plant station, the IEEE24 node network is divid...
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Disclosed is a power distribution network sequence control transformation decision making method based on safety performance cost. The method comprises the following steps of firstly, analyzing the sequence control transformation process of the power distribution network, determining a transformation process, and establishing a three-dimensional decision making model with transformation time, transformation location and a transformation mode, and then combining the three-dimensional decision making model with the original safety performance cost model, establishing a safety performance cost model suitable for the decision sequence control transformation, and then performing normalization processing on the index data, and finally, performing decision making judgment on the sequence controltransformation time, location and mode of the power distribution network according to the index data after normalization processing, wherein the safety index of the safety performance cost model comprises fault occurrence probability, the efficiency index is the average power availability ratio and reliability benefit, and the cost index is the whole life cycle cost. According to the design, the modification efficiency is remarkably improved, and the accuracy of decision making is increased.
Description
technical field [0001] The invention belongs to the technical field of power system analysis, and in particular relates to a decision-making method for sequence control transformation of distribution network based on safety efficiency cost. Background technique [0002] With the rapid and stable development of the national economy, the domestic demand for power and the requirements for power reliability and security are also increasing. According to incomplete statistics, by the end of 2016, the substations of 220kV and above in the country have basically realized the transformation to the direction of intelligence, and the substations of 110kV and below have also completed the transformation of comprehensive automation. Although the substation has basically realized the recombination and optimization of secondary equipment functions, it is lacking in the intelligent construction of primary equipment. Among them, more than 90% of substations support remote operation of circu...
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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 杨勇欧阳俊杜治鄢晶付昊博徐箭孙俊杰熊志郑云飞王娅镭赵红生郑旭张籍蔡杰
Owner STATE GRID CORP OF CHINA