This study proposes a combination of a fuzzy sliding mode controller (FSMC) with integral-proportion-Derivative switching surface based superconducting magnetic energy storage (SMES) and PID tuned by a multi-objective optimization algorithm to solve the load frequency control in power systems. The goal of design is to improve the dynamic response of power systems after load demand changes. In t...

We augment existing generator-side primary frequency control with load-side control that are local, ubiquitous, and continuous. The mechanisms on both the generator and the load sides are decentralized in that their control decisions are functions of locally measurable frequency deviations. These local algorithms interact over the network through nonlinear power flows. We design the local frequ...

Grid-connected converters are exposed to the loss of synchronisation with grid during severe voltage sags particularly when operating under weak condition which introduces and frequency volatility. This paper presents employing machine learning methods besides modifying converter control scheme enhance transient stability power synchronization (PSC). For early detection instability PSC provide ...

Due to the line impedance impact on islanded low-voltage microgrids, traditional droop control cannot guarantee the proper power sharing between distributed generation (DG) units. In the meanwhile, droop control would cause voltage and frequency deviation, which will influence the power quality of customers. This paper proposed an enhanced droop control scheme with autonomous frequency restorat...

In this paper, a new guidance law is designed to improve the performance of a homing missiles guidance system in terminal phase. For this purpose first of all, the two dimensions equations of motion are formulated, then the approximation dynamic of missile control loop is added to these equations which are nonlinear whit unmatched uncertainty. Then, a new adaptive back-stepping method is develo...

In the transient process of grid-connected converter (GCC), existing research mainly focuses on impact control loops. Little attention is paid to stability issues driven by imbalance between input power and output GCC. This paper shows that will still exist even if ignoring dynamics phase-locked loop (PLL) current loop. this paper, models AC grid GCC are built under assumption PLL ignored. Then...

This paper deals with Feedback/Feedforward (FB/FF) control of a gantry crane system intended for the transport payloads that take values over known interval. It is also assumed affected by unmeasurable disturbances. A new 2DoF architecture proposed whose purpose to speed up horizontal payload transition while minimizing its oscillations. The main features design procedure are as follows: (1) ou...

In this work, modeling and simulation of a flexible cantilever beam are investigated in SimMechanics then, vibration results verified with the finite element (FE) model ANSYS. Flexible based on is created MATLAB, while FE established system, inputs determined as force base actuator disturbance force. Outputs system selected displacement acceleration responses at endpoint beam. Undamped natural ...

The matrix converter-based IPMSM drive has 360 Hz virtual DC-bus voltage variations which produce severe stator harmonic currents. To solve this problem, a speed-loop classical periodic controller and two current-loop controllers, including selective controller, are proposed in paper. By using the methods, currents obviously reduced speed responses of clearly improved. A detailed analysis is di...