Connecting Wind Turbine Generator to Distribution Power Grid--A Preload Flow Calculation Stage  

作　　者：Agbetuyi Ayoade Felix Awosope Cladius Ojo Aremu Awelewa Ayokunle Ajibola Adoghe Uwakhonye Anthony Odigwe Ani Ishioma Samuel Adekunle Isaac 

机构地区：[1]Department of Electrical & Information Engineering, Covenant University, Canaanland 000076, Nigeria

出　　处：《Journal of Energy and Power Engineering》2014年第10期1811-1815,共5页能源与动力工程（美国大卫英文）

摘　　要：A distribution grid is generally characterized by a high R/X （resistance/reactance） ratio and it is radial in nature. By design, a distribution grid system is not an active network, and it is normally designed in such a way that power flows from transmission system via distribution system to consumers. But in a situation when wind turbines are connected to the distribution grid, the power source will change from one source to two sources, in this case, network is said to be active. This may probably have an impact on the distribution grid to whenever the wind turbine is connected. The best way to know the impact of wind turbine on the distribution grid in question is by carrying out load flow analysis on that system with and without the connection of wind turbines. Two major fundamental calculations： the steady-state voltage variation at the PCC （point of common coupling） and the calculation of short-circuit power of the grid system at the POC （point of connection） are necessary before carrying out the load flow study on the distribution grid. This paper, therefore, considers these pre-load flow calculations that are necessary before carrying out load flow study on the test distribution grid. These calculations are carded out on a test distribution system.

关 键 词：Distribution grid power quality wind turbine generator load flow. 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TM727[自动化与计算机技术—计算机科学与技术]