Adaptive SVC damping controller design, using residue method in a multi-machine system

Abstract

In this paper the design of an adaptive Power Oscillation Damping (POD) controller has been investigated for a Static Var Compensator (SVC). Simultaneous linearization of power system is carried out through a Recursive Least Squares (RLS) identification algorithm, after which a Residue Method is applied for adaptive POD parameter tuning. Proposed methodology has been simulated on a four machine test system considering current injection model for SVC. Obtained results through this approach demonstrate that this Adaptive POD gives more appropriate performance in comparison with fixed parameter controller in a wide range of operating conditions.

Robust design method for power oscillation damping controller of STATCOM based on residue and TLS-ESPRIT

“…PODC consists of an amplification block, a washout filter and lead-lag blocks, as shown in Figure 3 [16,17].…”

“…In this study, residue is used to measure the influence of PODC with different input signals and parameters could have in suppressing the power oscillation, facilitating the design procedure. PODC consists of an amplification block, a washout filter and lead-lag blocks, as shown in Figure 3 [16,17].…”

Stability Enhancement of a Power System With a PMSG-Based and a DFIG-Based Offshore Wind Farm Using a SVC With an Adaptive-Network-Based Fuzzy Inference System

“…The single-phase equivalent circuit of the SVC with thyristor-controlled reactor-fixed capacitor (TCR-FC) type was shown in Fig. 1 [6][7][8]. Fig.…”

“…The SVC was able to offer reactive power to maintain the transient stability while the TCSC was able to promote the terminal voltage and effectively improve lowvoltage ride through (LVRT) capability [5]. A SVC was located at the middle point of the tie line to damp out interarea oscillations occurred in a two-area four-machine system [6,7]. Comparing to the performance of a SVC, a static synchronous compensator (STATCOM) gave a larger contribution to transient margin and low-voltage ride-through (LVRT) capability of squirrel-cage induction generator-based wind farms using both calculations and simulations [8].…”

“…However, the main drawbacks of using a STATCOM were larger harmonics injected into systems, higher investment and operational costs. With the same studied power system in [6] and [7], a STATCOM with fuzzy controller was used to enhance power-system stability [9]. In [9], the fuzzy supplementary controller was designed by using a look-up table method to damp the inter-area power oscillations and enhancing dynamic stability of the interconnected power systems.…”