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Line-type Selection and Economic Analysis in Distribution Planning

Author: HanZuo
Tutor: WangChengShan
School: Tianjin University
Course: Proceedings of the
Keywords: The load - cost curve Economic load power distance Wire set
CLC: TM715
Type: Master's thesis
Year: 2003
Downloads: 261
Quote: 1
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Abstract


Distribution network as an important part of the power system , the pros and cons of its network will directly affect the quality of the power supply , thereby affecting the needs of users , and the conductor selected as an important part of the distribution network planning , network performance the impact necessary to in-depth study of the principles and methods of the conductor selection in the distribution network planning , and its economic analysis , the selected wire set to be coordinated with the entire distribution system to satisfy customer needs . This paper first analyzes the wiring from the power distribution system model , compare the pros and cons of cables and overhead lines and adaptability triangle - star connection mode , the advantages and disadvantages of single-phase power supply and three-phase power supply and wire selection and transmission line structure of the relationship , and then put forward the basic principles selected by the wire distribution network planning . From the start line economic analysis , to the cable , for example, the paper studies the characteristics of the load - the cost curve , to compare different cross-section wire load - the cost curve based on in-depth analysis impact load - cost curve of various factors , and further draw the different section conductors economic load area . In-depth study of the relationship between the line voltage drop and power distance , proposed the concept of the economic load power distance , studies have shown that the economic load power distance well reflect the relationship between the line voltage drop and power distance . Wire set of qualitative selection method - bisection method on the basis of the above theoretical analysis , calculation results show that the method can give the better set of wires ; addition, operations research , proposed wire set quantitative selection methods - the logistics of comparative law , and to be verified by an example . The results show that the selected set of wires Advance comparison method can also give good results . Finally, this paper also proposed a theoretically optimal wire set selection method - logistics planning method .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Power system planning
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