This paper presents a single-phase and three-phase compatible isolated on-board charger for electric vehicles. The is with the AC voltage input composed of two-stage circuits. Based on six-switch power factor correction (PFC) circuit, by switching off, front stage transformed into cascade topology totem-pole PFC circuit boost circuit. rear full-bridge LLC resonant converter. In or working mode,...

There exist two different types of equilibrium points in 3-D autonomous systems, named as saddle foci of index 1 and index 2, which are crucial for chaos generation. Although saddle foci of index 2 have been usually applied for creating double-scroll or double-wing chaotic attractors, saddle foci of index 1 are further considered for chaos generation in this paper. A novel approach for construc...

In order to enhance the control stability and anti-interference ability of quadcopter, this paper presents a quadcopter based on double-layer PID control, designs with STM32 as main controller, simulates verifies its system attitude. Firstly, nonlinear attitude mathematical model aircraft is established by four-element method, relationship between angle angular velocity obtained solving, so tha...

In the off-grid microgrid cluster, energy storage device is mainly charged and discharged to maintain stability of bus voltage system power balance. Generally, current double closed-loop control fuzzy are adopted for converter. The traditional parameters scale factor quantization in cannot be adjusted real time during operation, resulting slower dynamic response weak anti-interference ability s...

For an electro-hydrostatic actuator (EHA), the position, speed, and current cascade three-loop control architecture are dominant in existing active disturbance rejection (ADRC). However, this suffers from many problems, such as severe noise sensitivity of extended state observer (ESO), excessive complexity structure, too tuned parameters, which makes controller not easy to implement practice. A...

This note studies the problem of finite-time output feedback stabilization for the double integrator system. A class of output feedback controllers that can achieve global finite-time stability for the double integrator system are constructed based on a “finite-time separation principle.” Furthermore, it is shown that the closed-loop system resulting from our control law can maintain its local ...

abstract. in recent years several studies have shown that  control charts with adaptive schemes or double sampling plans detect both small and moderate shifts in the process mean more quickly than the traditional shewhart  chart. in the classical double sampling  chart, the difference between two points were placed in the central region of first stage was not considered. in this study, a new co...

A direct adaptive neural control scheme with single and double integral-plus-state (IPS) actions is proposed. The control scheme contains two recurrent trainable neural network (RTNN) models, which are a plant parameter identifier and state estimator, an IPS feedbacklfeedfonvard controller, and one or two 1-terms. The good performance of the adaptive IPS control scheme is confirmed by closed-lo...

Abstract This paper analyzes the principle of PWM rectifier and presents a unity power factor control method of PWM rectifier. Controller used double closed-loop PI control, which inner uses three-phase input current control method controlled by unity power factor and outer controls the output DC voltage of rectifier. Voltage phase detection methods which proposed could eliminate the affection ...