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This paper presents a networked control systems (NCS) framework for the coordinated control of distributed generation sources in smart power grids. The system measurements are transmitted to the controller through a realtime communication network. The effects of delays and packet dropouts due to the communication network are modeled and networked controllers are designed to stabilize the system in...
In this paper, low frequency inter area modes of a power system have been identified using wavelet analysis. Complex Morlet based, continuous wavelet transform has been used to compute modal frequencies and damping. Mode identification for both stable and unstable cases is considered in this paper. Results obtained using wavelet analysis has been verified by the results of Eigen value analysis. The...
In this paper a static synchronous series compensator (SSSC) is used to improve the small signal stability of a power system. A 48-step voltage source inverter (VSI) is used for the implementation of SSSC. The PI controller is used to regulate the dc link voltage of VSI. The mathematical model is derived for complete power system including PI and damping controller. The PI and damping controller parameters...
In India, present Energy supply systems has low sharing of renewable energy. To achieve higher renewable energy (RE) shares than typically found in present energy supply systems will require additional integration efforts. These include improved understanding of the RE resource characteristics and availability, investments in enabling infrastructure and research, development and demonstrations (RD...
This paper presents a real-time simulation of a synchronous generator using real-time application interface (RTAI) on Linux. Different generator controllers such as exciter and power system stabilizer are also included in the real-time simulation. The Forward Euler method with a suitable step-size has been employed for obtaining the solution of differential equations after justifying its applicability...
This paper describes the use of a STATCOM with Energy Storage System (ESS) to improve the small signal stability of power systems. The ESS considered is a wind farm based Permanent Magnet Synchronous Generator (PMSG) along with an AC/DC converter that is connected to a standard STATCOM. With this configuration of STATCOM/ESS extremely effective control strategies for modulation of reactive and active...
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