Abstract
The stability of the control grid is a critical prerequisite for a safe and efficient power system service. A thorough knowledge of the effects of the power system volatility is essential for the effective study and control of power systems. This paper presents the simulation outcome of a multimachine power network implemented by a wind farm (WF) utilizing a static synchronous compensator (STATCOM) for better stability control objectives. A similarly aggregated double-fed induction generator (DFIG) powered by a gearbox analogy with an equally aggregated wind turbine (WT) determines the operating output of the wind farm. A proportional–integral–derivative controller (PID)-based damping controller, PID including Fuzzy Logic Controller (FLC), and an adaptive network-based fuzzy inference system (ANFIS) controller of the proposed SATCOM are intended to add sufficient damping properties to the dominating modes of the examined system during diverse working circumstances. To assess the feasibility of the suggested control schemes, a frequency-domain method concentrated on a linearized mathematical structure layout utilizing a time-domain strategy centered on a nonlinear configuration of the device that is subjected to severe fault on the attached bus was carried out consistently. A STATCOM damping controller is configured using the ANFIS method to apply appropriate damping properties to the device’s decisive modes being evaluated under various test conditions. From the findings of the comparative simulation, it can be inferred that the suggested STATCOM along with the planned ANFIS is seen as comparable to STATCOM with PID and STATCOM with PID plus FLC to increase the stability of the studied device.
Highlights
A double-fed induction generator (DFIG) is, due to its numerous strengths, the most functional type of wind turbine
Controller, the combined proportional–integral–derivative controller (PID) including Fuzzy Logic Controller (FLC), and the adaptive network-based fuzzy inference system (ANFIS) damping controller to increase the stability of the system being tested under a three-phase short-circuit failure on bus 5 of Figure 1
When the systems being studied are reliable while this extreme fault is unexpectedly introduced and certain defensive relays clear it, the systems being studied have the potential to stay reliable as they are exposed to certain faults such as single line-to-ground faults, line-to-line faults, etc
Summary
A double-fed induction generator (DFIG) is, due to its numerous strengths, the most functional type of wind turbine. The wind farm consisting of a DFIG is linked to the electric network via a line-switched high-voltage direct-current (HVDC), and a damping controller positioned on the HVDC link rectifier current regulator has been suggested to add sufficient dampening to the wind farm under different wind and specific disruption environments. Such a controlling method proved beneficial to onshore grids with a longer distance to grid systems from the WF [1].
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