Stabilization of Tie-Line Power Flow by Robust SMES Controller for Interconnected Power System With Wind Farms

Abstract

This paper presents the use of superconducting magnetic energy storage (SMES) with robust controllers for stabilization of tie-line power flow in a longitudinally interconnected power system with wind farms. The high penetration of wind power with abrupt changes causes fluctuations of tie-line power flow and significantly affects the effective use of transmission lines. A simultaneous active and reactive power control scheme of SMES including a characteristic of SMES coil current is employed for realizing a permissible range of SMES operation. Moreover, a multiplicative uncertainty model is considered in the parameter optimization of robust SMES controllers by using a heuristic method. Finally, simulation results are carried out to show the effectiveness and robustness under various situations.

A robust SMES controller design for stabilization of inter-area oscillations based on wide area synchronized phasor measurements

“…As a result, a SMES is placed at buses 1 and 6. The SMES has a specification of 800 MJ, 40 kA, 1000 MVA [21].…”

“…In this study, small load variations at some load buses are assumed to simulate the phasor fluctuations measured in the power system. [21]. In the model, K P (s) and K Q (s) are represented by…”

Virtual Inertia Control Application to Enhance Frequency Stability of Interconnected Power Systems with High Renewable Energy Penetration

“…Focusing on multi-area power systems with an increase of RESs penetration, applications of interconnected power systems are widely increased to exchange power and strengthen stability and reliability. In [15][16][17][18], superconducting magnetic energy storage (SMES) systems and HVAC/HVDC parallel tie-lines have been designed and studied for a different type of interconnected power systems. Based on the aforementioned references, there is no report for inertia control methods to analyze the effects of inertia during high RESs penetration and contingencies.…”

Development of Correlation for Thermophysical Properties of Supercritical Oxygen to Be Used in SMES

“…However, these RESs power potential repeatedly changes and are barely predictable due to change in the environmental conditions. This can lead to undecorated complications due to severe fluctuations of tie-line power flow [4]. To overcome this problem, superconducting magnetic energy storage (SMES) can be utilized as an effective device with the ability to possess high storage efficiency, rapid response (within few milliseconds) and high cyclability, but only for short periods of time [5].…”