In 2018, the Commonwealth of Virginia passed the Grid Transformation & Security Act;one of its major purposes was to modernize the distribution grid In response, Dominion Energy Virginia implemented a plan to expa...
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ISBN:
(纸本)9798350381849;9798350381832
In 2018, the Commonwealth of Virginia passed the Grid Transformation & Security Act;one of its major purposes was to modernize the distribution grid In response, Dominion Energy Virginia implemented a plan to expand its Locks Campus and install a microgrid, with the core objective of enhancing grid security and system resilience. Once new construction is complete and distributed energy resources (DERs) are added, Dominion Energy will be able to observe the microgrid operations with real-time data. The Locks Microgrid will incorporate primarily inverter-based resources (IBRs), including five solar systems and a battery energy storage system. These IBRs possess distinct attributes that contrast with traditional synchronous generators, which could lead to challenges in executing protection mechanisms. One potential issue is IBRs' limited contribution to fault current, which could result in the misoperation of protective relays. One proposed solution was to put a protection scheme and control strategies in place at the recloser. To achieve this, Dominion constructed a real-time model of the Locks Microgrid using a real-time digital simulator. This model was then subjected to hardware-in-the-loop simulations to validate the protective relay systems' performance. The outcomes of these simulations confirmed the efficacy of the proposed protection and control approaches.
The design of a hardware-in-the-loop simulation platform for the service performance testing of industrial robot servo systems was discussed. An offline and online workload simulation mechanism was proposed to apply i...
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ISBN:
(数字)9781510646223
ISBN:
(纸本)9781510646223
The design of a hardware-in-the-loop simulation platform for the service performance testing of industrial robot servo systems was discussed. An offline and online workload simulation mechanism was proposed to apply in the platform. Some experimental results indicated that the workload simulation mechanism can realize the general workload output and ensure the real-time performance of the output. And the service performance testing of a 6-DOF industrial robot was provided, demonstrating the effectiveness of the hardware-in-the-loop simulation platform.
The X-by-wire technology, replacing mechanical components with electrical components, is essential to realizing an intelligent vehicle. The technology has many advantages including component reduction, design freedom ...
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ISBN:
(纸本)9788995003848
The X-by-wire technology, replacing mechanical components with electrical components, is essential to realizing an intelligent vehicle. The technology has many advantages including component reduction, design freedom increase and safety improvement. Brake-by-wire replaces hydraulic brake systems with electrical components. As a part of the x-by-wire technology, the brake-by-wire technology has been actively researched. The technology has a great advantage of solving manufacturing, maintenance and environmental problems associated with hydraulic systems. However, due to absence of mechanical or hydraulic back-up, the brake-by-wire system must be highly reliable and fault-tolerant This requires environment in which the system can be developed and tested safely, before applying to an actual vehicle. The environment must be flexible in developing and testing various algorithms, and be faithful in reproducing the actual system. This study thus develops a brake-by-wire hardware-in-the-loop simulation system that can serve as the environment mentioned above. The electro-mechanical brake type has been adopted in this study for developing the system. A procedure to develop the system was defined and followed to design a brake actuator, select a motor, build hardware components, set up the whole system, and test for performance evaluation. A preliminary test of the developed system shows its effectiveness. However, the test also shows that the response speed of the system should improve. A follow-up study will be conducted to improve system response, develop a full-scale system, and integrate with a steer-by-wire system.
This study presents an approach for designing an adaptive backstepping controller with unmeasured road disturbance to suppress the acceleration level of the vehicle body. It is considered that the unmeasured disturban...
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ISBN:
(纸本)9781538676417
This study presents an approach for designing an adaptive backstepping controller with unmeasured road disturbance to suppress the acceleration level of the vehicle body. It is considered that the unmeasured disturbance consist of a summation of a final number of sinusoidal signals with unknown parameters. Then, the observer is constructed. To generate the actuator force of MR damper, backstepping approach with using adaptive control technique is employed. To show the performance of the proposed controller, a hardware In-loopsimulation is prepared.
A hardware-In-the-loop (HIL) simulation of the traction system of automatic subway VAL 206 is developed for experimental validations of new control strategies. Energetic Macroscopic Representation is used to organize ...
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ISBN:
(纸本)9789075815115
A hardware-In-the-loop (HIL) simulation of the traction system of automatic subway VAL 206 is developed for experimental validations of new control strategies. Energetic Macroscopic Representation is used to organize the numerous blocks required. The HIL simulation is based on two vector-controlled induction machines, which impose the same behavior of the mechanical power train to the traction drives. A flexible and dynamical model of the whole system is used and experimental results are provided.
This paper details the models of a boost converter for hardware-in-the-loop simulation. The emulated power converter and load are implemented in a Xilinx Virtex 5 device of a dSPACE board using the Xilinx System Gener...
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ISBN:
(纸本)9781479917624
This paper details the models of a boost converter for hardware-in-the-loop simulation. The emulated power converter and load are implemented in a Xilinx Virtex 5 device of a dSPACE board using the Xilinx System Generator from Matlab/Sinmlink The implementable models are detailed and compared.
The aim of this work is to design and build a hardware-in-the-loop simulation (HILS) system for a guided bomb. This paper presents a design scheme, based on the guidance and control system of the guided bomb, and the ...
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ISBN:
(纸本)9781538611715
The aim of this work is to design and build a hardware-in-the-loop simulation (HILS) system for a guided bomb. This paper presents a design scheme, based on the guidance and control system of the guided bomb, and the corresponding test floss of a guided bomb control system to provide a support platform to verify its performance. The design HILS test based on actual conditions is also described. Based on the similarity theory, Nile provide three examples of simulation experiments. The simulation results confirm the effectiveness of the HILS system of the guided bomb.
This paper presents a hardware in the loopsimulation (HITL) for an altitude hold autopilot applied on a fixed-wing unmanned aerial vehicle (UAV). A complete model of the aircraft was generated using MATLAB and Simuli...
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ISBN:
(纸本)9781624106316
This paper presents a hardware in the loopsimulation (HITL) for an altitude hold autopilot applied on a fixed-wing unmanned aerial vehicle (UAV). A complete model of the aircraft was generated using MATLAB and Simulink to which the Total Energy Control System (TECS) was implemented. The HITL provides an artificial environment which is used to represent the aircraft dynamics under flight conditions resembling the real world and investigates the flight controller real-time commands. A comparison between the results of both HITL simulation and software in the loop (SITL) simulation is demonstrated to validate the flight controller performance before actual flight testing.
The paper focuses on the practical implementation of a novel control method to an automotive suspension system using active force control (AFC) with iterative learning algorithm (ILA) and proportional-integral-derivat...
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ISBN:
(纸本)9783037859339
The paper focuses on the practical implementation of a novel control method to an automotive suspension system using active force control (AFC) with iterative learning algorithm (ILA) and proportional-integral-derivative (PID) control strategy. The overall control system to be known as AFC-IL scheme essentially comprises three feedback control loops to cater for a number of specific tasks, namely, the innermost loop for the force tracking of the pneumatic actuator using PI controller, intermediate loops applying AFC with ILA strategy for the compensation of the disturbances and the outermost loop using MD controller for the computation of the desired force. A number of experiments were carried out on a physical test rig with hardware-in-the-loop simulation (HILS) feature that fully incorporates the theoretical elements. The performance of the proposed control method was evaluated and benchmarked to examine the effectiveness of the system in suppressing the vibration effect of the suspension system. It was found that the experimental results demonstrate the superiority of the active suspension system with proposed AFC-IL scheme compared to the PID and passive counterparts.
Performances of hydraulic actuation system (HAS) affect flight quality of the flight control system (FCS) directly. To reach a high performance, HAS must be tested in hardware-in-the-loop simulation (HILS) during its ...
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ISBN:
(纸本)7506278413
Performances of hydraulic actuation system (HAS) affect flight quality of the flight control system (FCS) directly. To reach a high performance, HAS must be tested in hardware-in-the-loop simulation (HILS) during its development stage. This paper designs the actuation controller based on high-speed digital signal processor (DSP), establishes the model of HAS with the hydraulic system simulation tool DSHplus and presents the HILS scheme, designs the interface modules of hardware and software between the HAS model and outer controller. Such factors as discretization error, delay of transmission and disturbances are taken into account in the HILS scheme, which makes the simulation results more accurate and credible. By the aid of the extended CAN module of DSP controller, it is easy to adjust the parameters in real time. Experiments show that the HILS scheme is satisfying and the design of HAS is correct.
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