Control Scheme for Second Harmonic Current Elimination in …
Single-star configuration-based cascade multilevel energy storage system is among the most promising solution for high-voltage and large-capacity battery energy storage systems. However, such a solution has inherent second harmonic current (SHC) pulsing in each cluster, which requires a huge passive filter network to maintain the battery current ripple …
Control Scheme for Reducing Second Harmonic Current in …
Based on that, the virtual-impedance-based control scheme is proposed to increase both the input impedance and output impedance of the dc–dc converter. In addition, the realization and design guideline of the virtual impedance is presented. Finally, a single-phase 3-kVA ac–dc–ac converter system is fabricated and tested in the lab.
A Control Scheme With Energy Saving and DC-Link
This paper presents a control scheme for an induction motor that integrates, within a coherent solution, some of the features that are commonly required from an electric vehicle drive. The main features of the proposed control scheme are the capability to exploit the maximum torque in the whole speed range, a weak dependence on the motor …
Decoupled Vector Control Scheme for Dual Three-Phase …
Dual three-phase electric machines have many advantages compared with conventional three-phase machines. However, the properties of such machines present challenges for current control that make it difficult to produce sufficient performance for the electric drive. This paper introduces an improved vector control scheme for dual three …
Distributed Control Scheme for Accurate Power Sharing …
Global Positioning System (GPS) based control has recently been reported as a replacement of droop control to achieve fixed frequency operation in islanded microgrids. This article presents the perspective that the power sharing performance of a general microgrid synchronized by GPS is essentially determined by equivalent output …
Certificateless-Signcryption-Based Three-Factor User Access Control …
User access control is a crucial requirement in any Internet of Things (IoT) deployment, as it allows one to provide authorization, authentication, and revocation of a registered legitimate user to access real-time information and/or service directly from the IoT devices. To complement the existing literature, we design a new three-factor …
Control Scheme
The control scheme developed for the DFIG is designed to prohibit any reactive power compensation to the grid during fault events in order to examine the behavior of the implemented protection scheme elaborately. The protection scheme is initiated with the detection of the fault and allow the rotor currents to dissipate power across the resistors.
Optimal Control Scheme for Single-Stage Dual-Active-Bridge …
This paper proposes an optimal control for a high step-down ratio single-stage AC-DC converter based on dual-active-bridge (DAB) topology and enhancement mode GaN FET. AC bridge working principle and clamping capacitor operation strategies is introduced. Zero voltage switching (ZVS) condition is analyzed to improve efficiency during whole line …
Bidirectional Energy Flow Modulation for Passive Admittance …
Admittance control is a control scheme to enable physical interactions of a robot, but it easily induces instability when the robot contacts a rigid surface. In this …
A dynamic decoupling control scheme for high-speed operation of
A dynamic decoupling control scheme for high-speed operation of induction motors Abstract: In a high-speed operation of a vector-controlled induction motor, coupling between d-q current dynamics impairs the characteristics of torque response.
Control scheme in hybrid synchronous stationary frame for …
This paper proposes a new control scheme of improved transient response for the pulsewidth-modulation ac/dc converter under generalized unbalanced operating conditions. The overall-bandwidth diminishing filter/functional block for extracting positive and negative sequence components has been avoided by employing dual current …
Control Structures are Expressions
Control Structures are Expressions. Scheme control structures are expressions, and return values. An if expression is a lot like a C if-then statement, but the "then" branch and the "else" branch are also expressions that return values; the if expression returns the value of whichever subexpression it evaluates.
An Adaptive Constant Voltage Control Scheme for Primary …
An adaptive multimode constant voltage (CV) control scheme for primary-side regulation flyback converters operating in discontinuous conduction mode and continuous conduction mode operation is presented, which significantly enhances the light-load efficiency and thereby the overall average efficiency. Compared to conventional …
A Novel Control Scheme for the Electric Motor Emulator to …
A novel control scheme based on an active circulation regulation approach and a switched-mode modulation strategy is proposed in this article. The proposed control scheme is aimed at the commercial EME with the parallel-branch converter. Both simulations and experiments are carried out based on a prototype power topology, …
Two-Layer Control Scheme for Maintaining the Frequency …
In this paper, a two-layer control scheme is proposed to improve the optimal economic operation of hybrid ac/dc microgrids. The proposed scheme consists of the lower layer representing a continuous dynamic control model with a solution that is analogous to the iterative solution of a decentralized economic dispatch problem for ac …
Control Scheme for a Stand-Alone Wind Energy Conversion System
Present energy need heavily relies on the conventional sources. But the limited availability and steady increase in the price of conventional sources has shifted the focus toward renewable sources of energy. Of the available alternative sources of energy, wind energy is considered to be one of the proven technologies. With a competitive cost …
How Control Schemes Standardized Gameplay
How Control Schemes Standardized Gameplay. An underrated importance of video games becoming mainstream was the standardization of control design and today's post examines how this came to be with some lessons for new designers. Josh Bycer, Blogger. August 15, 2014. 7 Min Read. One of the major ways that video games …
Seamless Dual Mode Control Scheme for Dual Active Bridge …
A Seamless Dual mode control (SDMC) scheme is proposed for dual active bridge (DAB) converter to achieve full load range zero voltage switching (ZVS) of all switches and minimum transformer peak current. Two control variables are defined for respective operating modes to implement the control scheme. ZVS conditions and transformer …
Incremental Sliding Mode Control for Predefined-Time …
Finally, numerical simulation examples verify the effectiveness of the proposed control scheme. This paper presents a novel incremental sliding mode control …
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Equilibrium Compensation Based Control: A Universal Control Scheme …
There are significant couplings between control techniques and disturbance rejection techniques in traditional control schemes for systems with mismatched disturbances, such that both techniques have to be designed simultaneously. In this paper, independent of specific control methods, a universal disturbance rejection scheme …
Dual current control scheme for PWM converter under …
Voltage unbalance in a three-phase system causes performance deterioration of PWM power converters by producing 120 Hz voltage ripples in the DC link and by increasing the reactive power. To eliminate the DC link voltage ripple and the DC component of the reactive power, both positive- and negative-sequence currents should be controlled …
Optimal Control Scheme of Maglev Train Based on The …
In this paper, the mathematical model of single electromagnet suspension system is established. The optimal control algorithm based on the nonlinear disturbance observer is proposed for the established model of the maglev train. The inaccuracy and external disturbance of the model for the suspension system are observed by a nonlinear …
Dynamic Target Enclosing Control Scheme for Multi-Agent …
Dear Editor, This letter investigates the target enclosing control problem of multi-agent systems. A signed graph-based control strategy is presented, where the agents are steered to enclose the dynamic target from both sides as they move. This is inspired by the phenomenon that signed networks exhibit bipartite clustering if the underlying graph …
Sliding Mode Control Scheme for a CLLC Resonant Converter
In this paper, a comprehensive sliding mode control (SMC) loop design for a CLLC resonant converter is proposed. The major objectives of the proposed SMC are to improve the converter dynamics and to achieve a tight output voltage regulation with respect to any parameter variations and external disturbances. The sliding surface coefficients are …
11.3: Cascade Control
The simplest cascade control scheme involves two control loops that use two measurement signals to control one primary variable. In such a control system, the …
Written Scheme of Control for Legionella | ACOP L8 …
The written scheme of control forms an essential risk management document that should be developed as a practical tool to be used by all stakeholders involved in the legionella control process. The written scheme is separate to the legionella risk assessment and is a legal requirement identified by the Health & Safety Executive in their ...
Adaptive model predictive control scheme for partially …
A hybrid control scheme consisting of an online concentration estimator and an extended generic model controller (EGMC) is proposed for the high-purity control of …
5 Tips for Designing Control Schemes
Creating an effective control scheme is one of those elements that take practice and a careful eye, but there are some important tips that can make the process easier for you. These points have been talked about on Game-Wisdom several times in the past, so we're not going to spend as much on them. This is merely a one-stop guide for …
Opponent's Dynamic Prediction Model-Based Power Control Scheme …
In this article, we propose a novel power control scheme for secure transmission and smart jamming game to solve the problem of the decline of anti-jamming performance due to the unknown behavior of the opponent. By exploring recursive reasoning principles and reinforcement learning approaches, we design a high-performance framework for …