This technique is termed as Load Frequency Control ⁎ Thus, through LFC mechanism either by increasing generation capacity or minimizing the frequency deviation this issue can be kept within desired limits. In a power system, the loads are unpredictable and uncertain in nature, which indirectly aﬀects the system frequency that is not desirable. Before knowing all these above-mentioned issues regarding LFC there is need to know, what is LFC* As we know, that LFC plays very signiﬁcant role in designing and operation of a healthy power system. This paper also deals with classiﬁcation of LFC based on soft computing technique and diﬀerent algorithms and LFC in restructured power environment and also reﬂects how LFC works with load forecasting techniques.

It highlights how LFC incorporating with FACTS (Flexible AC Transmission System) devices, Energy Storage System (ESS) and HVDC links. It explores the types of power system models with linearity or non-linearity, diﬀerent types of control techniques like classical control approach and modern, advance and intelligent control. Introduction As the title of this paper suggest that, this paper revolve around LFC and its mechanism for power system. This paper is designed in order to highlight the major traits of Load forecasting and some critical case studies on LFC.ġ. These studies also illustrates conventional power system, deregulated of power environment as well as distributed generation and micro grids. This review reveals the investigation of soft computing based optimization technique and application of Energy Storage System (ESS) and HVDC-link in LFC. This paper focused on diﬀerent control techniques of LFC, which also includes all the recent application of FACTS devices. The overall study explores the depth study issues related to LFC mechanism based on diﬀerent sources of power system models. This paper presents a detailed survey on load frequency control (LFC) mechanism. Due to this, an appropriate review of load frequency control (LFC) mechanism is essential and a few attempts have been made in this concern. However, number of control strategies has been employed in the design of load frequency controllers in order to achieve a better dynamic response and the exact choice of the LFC controller in a particular case requires suﬃcient expertise because each controller has its own merits and demerits. Load frequency control is necessary to develop better control in order to achieve less eﬀect on the frequency and tie line power deviations after a load perturbation. Over the past few decades, many publications have been made in the area of Load frequency control (LFC) of interconnected power systems.

Keywords: Load frequency control Classical control Optimal Control Adaptive control Energy storage systems

Pradhanb, Kalyan Chatterjeec,, Rajasi Mandalc a b cĭepartment of Electrical Engineering, NIT, Patna, India School of Electrical Engineering, KIIT University, India Department of Electrical Engineering, IIT(ISM), Dhanbad, India Renewable and Sustainable Energy Reviews journal homepage: A comprehensive state of the art literature survey on LFC mechanism for power system Renewable and Sustainable Energy Reviews 76 (2017) 1185–1207Ĭontents lists available at ScienceDirect

Otto matic power energy system