This paper presents the survey of the smart grid technologies, including the background, motivation and practical applications. The driving forces for the smart grid technologies are presented, including the blackout, global energy crisis and environmental protection requirement. The key technology issues for building the smart grid are discussed. The crucial elements of the smart grid and thei...

AbstractIn modern power system, Static Compensator (STATCOM) is used to alleviate the transient stability problem and damping power system oscillations. In this paper different STATCOM control scheme using fuzzy logic controller (FLC) and model predictive controller (MPC) for the Single Machine Infinite Bus (SMIB) system in improving transient stability is simulated using MATLAB/ Simulink in po...

In recent years, the doubly fed induction generators (DFIGs) are used in modern wind power plants. These generators have a large impact on the stability of power system. In this paper, we examine the stability of DFIG wind turbines with static synchronous compensator (STATCOM). Optimal tuning of STATCOM control Parameters is very important in order to proper Performance of STATCOM as a stabiliz...

Abstract: Electric vehicles (EVs) have been gaining popularity in recent years due to growing concerns about fuel depletion and increasing petrol prices. Random uncoordinated charging of multiple EVs at residential distribution feeders with moderate penetration levels is expected in the near future. This paper describes a high performance voltage controller for the EVs charging system, and prop...

The characteristics of Static Synchronous Series Compensator (SSSC) based on six-pulse Voltage Source Converter (VSC), which is inserted in series into a three phase inductive system, are analyzed and calculated in detail in its inductive and capacitive operation modes, including the AC, DC current and DC capacitor voltage in one period. And the expressions for them are derived in order to asse...

In this paper, the goal is the improvement of transient condition in a single machine system with designing of the nonlinear controllers for static Synchronous Compensator (STATCOM). By obtaining the Lyapunov function in presence of compensator in the system, some controllers are designed for it which by satisfying the Lyapunov stability criteria will increase the margin of transient stability ...

Multilevel Voltage-Source Converters (VSC) based on modular structures are envisioned as a prominent alternative for grid and industry applications. Foremost among these the Cascaded H-Bridge (CHB) Modular Converter (MMC). In this context, depending application power conversion structure, unbalanced operating conditions can be asked to converter. Previous investigations regarding operation solu...

The existing distribution networks were designed at a time when there was virtually no embedded generation. design methods ensured the voltage various parts of network remained within limits required by standards, and for most part, this very successfully achieved. As Distributed Energy Resources (DERs) started to grow, rise in due injected currents local impedances push voltages toward, even a...