期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：ICETS
页码：1008
出版社：S&S Publications
摘要：In an interconnected power system, as apower load demand varies randomly both areafrequency and tie-line power interchange also vary.The objectives of load frequency control (LFC) are tominimize the deviations in these variables (areafrequency and tie-line power interchange) and toensure their steady state errors to be zero. In this areaof energy crisis, renewable energy is the mostpromising solution to man’s ever increasing energyneeds. But the power production by these resourcescannot be controlled unlike in thermal plants. As aresult, standalone operation of renewable energy is notreliable. Hence grid-connection of these along withconventional plants is preferred due to the improvedperformance in response to dynamic load. It isobserved that fluctuations in frequency caused due toload variations are low with increase in penetration ofrenewable resources. Load frequency control (LFC)including PID controller is proposed in order tosuppress frequency deviations for a power systeminvolving wind, hydro and thermal plants owing toload and generating power fluctuations caused bypenetration of renewable resources. A systeminvolving two thermal plants, a wind farm and a hydroplant will be modelled using MATLAB.
关键词：Distributed power generation; load;frequency; Control (LFC); wind power; hydro power;and thermal power plants
