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논문 기본 정보

자료유형
학술저널
저자정보
Hongsheng Su (Lanzhou Jiaotong University) Zezhong Zhang (Lanzhou Jiaotong University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.13 No.2
발행연도
2018.3
수록면
608 - 619 (12page)

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초록· 키워드

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As distributed generation (DG) is connected to grid, there is new node-type occurring in distribution network. An efficient algorithm is proposed in this paper to calculate power flow for weakly meshed distribution network with DGs in different load models. The algorithm respectively establishes mathematical models focusing on the wind power, photovoltaic cell, fuel cell, and gas turbine, wherein the different DGs are respectively equivalent to PQ, PI, PQ (V) and PV node-type. When dealing with PV node, the algorithm adopts reactive power compensation device to correct power, and the reactive power allocation principle is proposed to determine reactive power initial value to improve convergence of the algorithm. In addition, when dealing with the weakly meshed network, the proposed algorithm, which builds path matrix based on loop-analysis and establishes incident matrix of node voltage and injection current, possesses good convergence and strong ability to process the loops. The simulation results in IEEE33 and PG&G69 node distribution networks show that with increase of the number of loops, the algorithm’s iteration times will decrease, and its convergence performance is stronger. Clearly, it can be effectively used to solve the problem of power flow calculation for weakly meshed distribution network containing different DGs.

목차

Abstract
1. Introduction
2. Distributed Network Model Containing DG
3. Power Flow Calculation Model of DG
4. Static Load Characteristics Models
5. PV-node Processing
6. Power Flow Calculation of Weakly Meshed Distribution Network
7. Examples
8. Conclusion
References

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