Design of Anti-Windup Compensator for Energy Storage-Based Damping Controller to Enhance Power System Stability

Abstract

The application of energy storage (ES) in power system is limited due to the high cost of the ES device, which exponentially increases with its capacity. This paper is to improve the saturation-dependent stability of the power system equipped with the energy storage based damping controller (ESDC), and hence, reduce the required size of the ES. The phenomenon that the capacity of ES is smaller than the required value produced by the ESDC, is modeled as actuator saturation using the saturation function. The proposed method is to design an anti-windup compensator (AWC), which in the event of saturation, produces a signal based on the output difference between the ESDC and saturated ES and then augment the signal to the ESDC to alleviate the adverse effect of saturation. The AWC is designed with the reduced-order model of power system and linear matrix inequality. Detailed design procedure is introduced. Case studies based on a modified 4-machine 2-area power system and 10-machine New England power system are carried out to demonstrate the effectiveness of the AWC design method.

Nonlinear Synergetic Governor Controllers for Steam Turbine Generators to Enhance Power System Stability

“…In this subsection, the New England system [40][41][42][43][44] shown in Figure 8 is applied to demonstrate the effectiveness of the NSGC in a multi-machine power system. All the loads are considered as the constant impedance model.…”

Adaptive Control of a Gyroscopically Stabilized Pendulum and Its Application to a Single-Wheel Pendulum Robot

“…The remaining issue is the design of an adaptive virtual control u r based on the approximate model (23).…”

Damping control for a target oscillation mode using battery energy storage

“…Some studies have been reported in recent literatures [9][10][11][12][13][14][15]. In [11], the analysis and design of a BESS controller for a two-machine system are discussed and tested, but the analysis for general multi-machine systems is not comprehensively covered.…”

“…Regarding robust control for damping oscillation by BESS, there are two mainstreams: linear and nonlinear robust control. In [14], the linear matrix inequality (LMI) method is used, which requires the solving of an optimization problem. In [15], the Port-Hamiltonian formulation and the related controller design method are applied on BESS to improve the transient stability.…”