The application of power electronics equipment in medium voltage (MV) distribution grids can provide new management solutions for flow control, load balancing and problems. A series MV VSC-based controller has recently been presented to interconnect two radial feeders performing active reactive transfers improve the flexibility utilization these circuits a controlled secure way. Although not pr...

DC voltage utilization and AC harmonics are important evaluation indexes for Auxiliary Power Converter in Railway Applications. To improve the above two indicators, a novel switch-mode modulation method quasi-PR control strategy Buck-H three-phase inverter is proposed this paper. The integrates side filter circuit into Buck circuit, which reduces volume of capacitor improves filtering effect. T...

This paper presents a neural network controller for nonlinear system trajectory tracking, which works in an iterative learning manner. The controller is composed of many local neural networks and every point along the desired trajectory has its own one for approximating nonlinearity only nearby. This makes that every local neural network can be possessed of a simple structure and less neurons. ...

This paper presents the modelling and design steps of a digital proportional multi-resonant controller used in a grid-connected photovoltaic (PV) system. It is shown that the use of only one ProportionalResonant (PR) compensator, tuned to the system fundamental frequency, may have its effectiveness compromised due to nonlinearities in the system components. To overcome this drawback and improve...

This paper proposes a single-loop repetitive voltage control strategy which incorporates the active damping control feature for single-phase uninterruptible power supply (UPS) applications. The proposed method reduces the effect of the LC resonant peak, which limits the control bandwidth and deteriorates the stability of the entire control loop by effectively increasing the damping component. D...

The high accuracy and dynamic performance of parallel robots (PRs) make them suitable to ensure safe operation in human–robot interaction. However, these advantages come at the expense a reduced workspace possible appearance type II singularities. latter is due loss control PR requires further analysis keep stiffness even after singular configuration reached. All or subset limbs could be respon...

Abstract As the application market of voltage source inverters is consistently expanding, new control technologies are also being explored. This article presents a novel PIR controller using conventional as point comparison and validated by tests conducted in MATLAB, results which led to conclusion that has superior performance when compared with traditional PI controller, R PR controller. Thes...

An iterative contraction stability control strategy is proposed to solve the end point position problem of planar prismatic-rotational (PR) underactuated robot. We establish dynamic model PR robot, and use algebra method derive nilpotent approximation (NAM) with similar characteristics original system. According robot structure objectives, we propose a two-stage idea: 1) Design sliding mode var...

In this paper, Proportional Gain Resonant and Scheduled (PR-P) Controller based variable perturbation size real-time adaptive perturb observe (P&O) maximum power point tracking (MPPT) algorithm is presented. The proposed control scheme resolved the drawbacks of conventional P&O MPPT method associated with use constant that leads to poor transient response high continuous steady-state oscillatio...

In this paper, a second order sliding mode control scheme is utilized for outer voltage loop of three-phase fault current limiter-based dynamic restorer (FCL-DVR) instead conventional proportional integral/proportional resonance (PI/PR) controller. The new strategy improves the performance FCL-DVR against distortion. Furthermore, by using proposed robustness controller, can smoothly switch betw...