Design and Real-Time Implementation of Robust FACTS Controller for Damping Inter-Area Oscillation

Abstract

Abstract-An application of a normalized loop-shaping technique for design and simplification of damping controllers in the liner matrix inequalities (LMI) framework is illustrated in this paper. The solution is sought numerically using LMIs with additional pole-placement constraints. This ensures that the time-domain specifications are met besides robust stabilization. The designed control algorithm is implemented using a rapid prototyping controller. The performance of the controller is validated in real time using a detailed model of the power system implemented using Linux PC-based, multi-processor technology. The coupling between the controller and the power system is through a set of DAC and ADC modules in the analogue domain.

Control Coordination Within a VSC HVDC Link for Power Oscillation Damping: A Robust Decentralized Approach Using Homotopy

“…This approach is referred to as regional pole-placements, where the closed-loop poles are assigned to specific locations in the complex plane. This is formulated in terms of LMI regions based on a 'conic sector' which is appropriate for power system damping control applications as it defines a minimum damping for the closed loop dominant inter-area modes [18].…”

A Comprehensive Survey of Optimal Placement and Coordinated Control Techniques of FACTS Controllers in Multi-Machine Power System Environments

“…Lie et al presented a linear optimal controller for the designed to implement multiple variable series compensators in transmission networks of inter-connected power system is utilized to damp inter-area oscillations and enhance power system damping [117]. An application of a normalized ∞ H loop shaping techniques has been proposed for design and simplification of damping FACTS controllers in the linear matrix inequalities (LMI) framework in power system for enhance damping inter-area oscillation of power system [118]. In [119], a linear optimal controller has been addressed for the designed to implement multiple variable series compensators (VSCs) in transmission network of interconnected power system is utilized to damp inter-area oscillations and enhance power system damping during large disturbances.…”

Self-tuning flexible ac transmission system controllers for power oscillation damping: a case study in real time

“…Such a configuration with analogue interface ensures that the controller (RPC) is unable to recognise whether the signals going into it is interfaced with an actual power system or an emulated version of it. Reference [13] describes this setup in details.…”

“…A simpler alternative is to use a hardware platform to simulate the behaviour of actual power systems in real time. With such a test system in place, the controller can be tested in a real time configuration [13].…”