Centralized Sliding Mode Control of Power System with UPFC
نویسنده
چکیده
In this article is proposed a Centralized Sliding Mode Control (CSMC) applied to a UPFC device for controlling power flow and enhancing power system stability. First, we establish a state-space dynamic model of UPFC based on Kirchhoff’s equations and (d-q) transformation. This model includes the two voltage source inverters and the DC bus voltage link. Furthermore, in order to cancel the effect of uncertainties which can affect this plant, we develop a centralized version of sliding mode control based on this state model. In the case where the proposed control scheme is used, we simulate the operation of UPFC equipping a High Voltage (HV) electrical line interconnecting two stable nodes. The simulation results show that it is possible and achievable to control the power flow with satisfactory performances regardless of the parameter uncertainties affecting the model plant. Key-Words: FACTS, UPFC, Electrical Power System, Real Power, Reactive Power, Sliding Mode Control, Lyapunov Function.
منابع مشابه
Load Frequency Control in Two Area Power System Using Sliding Mode Control
In this article, the sliding mode control of frequency load control of power systems is studied. The study areaconsists of a system of water and heat. First, a mathematical model of the proposed system disturbances ismade and then sliding control mode for frequency load control is provided. By the system simulation andsliding mode control, it can be shown that the damping of oscillations is wel...
متن کاملA PSO-Based Neuro-Sliding Mode Controller for the Stability Enhancement of Power Systems with UPFC
This paper presents a particle swarm optimization (PSO)-based neuro-sliding mode controller for the transient stability enhancement of multimachine power systems with unified power flow controller (UPFC). The UPFC is modeled as controllable loads. These controllable parameters are obtained using the sliding mode control (SMC) strategy. A PSO-based single neuron controller is used to adapt the p...
متن کاملGovernor design for hydropower plants by intelligent sliding mode variable structure control
This work proposes a neural-fuzzy sliding mode control scheme for a hydro-turbine speed governor system. Considering the assumption of elastic water hammer, a nonlinear mode of the hydro-turbine governor system is established. By linearizing this mode, a sliding mode controller is designed. The linearized mode is subject to uncertainties. The uncertainties are generated in the process of linear...
متن کاملSliding-Mode-based Improved Direct Active and Reactive Power Control of Doubly Fed Induction Generator under Unbalanced Grid Voltage Condition
This paper proposes an improved direct active and reactive power control (DPC) strategy for a grid-connected doubly fed induction generator (DFIG) based wind-turbine system under unbalanced grid voltage condition. The method produces required rotor voltage references based on the sliding mode control (SMC) approach in stationary reference frame, without the requirement of synchronous coordinate...
متن کاملModelling and Analysis of Upfc Connected Single Machine System with Pss Design Using Sliding Mode Control Technique
The unique capability of the Unified Power Flow Controller in multiple line compensation are integrated into a generalized power flow controller that is able to maintain prescribed and independently controllable, real power and reactive power flow within the line. We demonstrate the proposed technique on a single machine infinite bus system. In this paper, we propose UPFC with PSS design scheme...
متن کامل