A Method for Optimal Arrangement of Voltage Monitoring Terminals of Trunk Type Distribution Lines
A technology for voltage monitoring and power distribution lines, which is applied in the field of power systems, can solve problems such as the inability to effectively grasp the distribution of line voltage in real time, and achieve the effect of easy analysis
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Embodiment 1
[0043] see figure 2 , the present invention provides a method for optimizing distribution points of trunk-type distribution line voltage monitoring terminals, including:
[0044] S1. According to the load distribution of the trunk type distribution network, detect and obtain the branch circuit parameters and the distributed power on the line in the oil field distribution network system;
[0045] S2. Monitor the number of terminals according to the given voltage; calculate the naturalization coefficient of the overhead line to the former load moment; calculate the naturalization coefficient β of each section of the line i ;
[0046] S3. Calculate and correct the load moment of each section of the line, and then obtain the installation position of each monitoring point;
[0047] S4. Install the voltage monitoring terminal according to the installation positions of the monitoring points obtained in S3.
[0048] S3 specifically includes:
[0049] S301, the planning coefficien...
Embodiment 2
[0073] see Figure 1 to Figure 5 , taking the power grid with a voltage level of 35kV and below as an example, its main features are small line length, low voltage level, and small transmission energy. Therefore, when calculating the line voltage loss, the transverse component of its voltage drop can be ignored, and the rated voltage can be used instead The actual voltage at each point calculates the voltage loss, which simplifies the network as figure 1 Shown:
[0074] Among them, p i ,q i Indicates the load power of each branch line, P i , Q i Indicates the power of each section of trunk line, l i 、r i 、x i Indicates the length, resistance and reactance of each segment of the line, L i , R i 、X i Represents the trunk line length, resistance and reactance between each load and the power supply, i=1,2,3.
[0075] To simplify the analysis, use the rated voltage U N Instead of the actual operating voltage at each node, at this time, the voltage loss of each section o...
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