The goal of this paper is to propose a real time solution to validate energy smart-home strategies that support Demand Side Management done by direct control. The validation concerns the appliances under control. An E...
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ISBN:
(纸本)9781467303422
The goal of this paper is to propose a real time solution to validate energy smart-home strategies that support Demand Side Management done by direct control. The validation concerns the appliances under control. An Energy Management System globally controls the appliances of a house, satisfying the subscription power limits. A hardware-in-the-loop test bench, based on a real-time simulator called RT_LAB, is proposed to exemplify the validation mean: it is used to assess the performances of an energy management strategy for a thermal zone based on the control of a heater. Physical devices are introduced into the simulated system to check whether they can support the control strategies.
This paper contains a description of an adaptive protection scheme that has been implemented and demonstrated in a hardware in the loopsimulation environment using commercially available protection hardware and IEC 6...
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ISBN:
(纸本)9781629931333
This paper contains a description of an adaptive protection scheme that has been implemented and demonstrated in a hardware in the loopsimulation environment using commercially available protection hardware and IEC 61850 communications. The implementation is based on an actual 11kV system which includes distributed generation and network automation. IEC 61850 communications offers several benefits for the implementation of adaptive protection, but also presents some limitations which are discussed in the paper. An alternative approach to overcome a number of the limitations is also presented.
This paper explains the FPGA implementation of a Permanent Magnet Synchronous Motor (PMSM) model using the latest JMAG-RT Finite-Element-Analysis software's real-time models: variable-DQ and Spatial Harmonic. In t...
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ISBN:
(纸本)9781467319720
This paper explains the FPGA implementation of a Permanent Magnet Synchronous Motor (PMSM) model using the latest JMAG-RT Finite-Element-Analysis software's real-time models: variable-DQ and Spatial Harmonic. In the variable-DQ (VDQ) model, the DQ inductances are varied according to the saturation level and a sinusoidal back-EMF is assumed. In the Spatial Harmonic (SH) model, the instantaneous magnetisation state is used to integrate the model;differential inductance and nonsinusoidal back-EMF are considered for all possible points of operation, resulting in improved precision, especially in transient states. The SH model also includes torque and current harmonics contents induced by machine slots and back-EMF spatial configurations. Both VDQ and SH models are implemented in a ML605 FPGA board running in the RT-LAB real-time simulation environment.
In our previous work [14], we applied partial feedback linearization to the unicycle model to stabilize part of the state at a desired position on the plane and extend it to design formation control for teleoperation....
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ISBN:
(纸本)9781467322379
In our previous work [14], we applied partial feedback linearization to the unicycle model to stabilize part of the state at a desired position on the plane and extend it to design formation control for teleoperation. Further, using output synchronization results we derive a Single Master Multiple Slave bilateral teleoperation system robust to constant unknown, possible different time delays between master and formation and among mobile robots and formation. Here, we show hardware in the loopsimulation and experimental results to validate the theoretical findings.
The challenges in achieving higher integration of Distributed Energy Resources (DER) in electricity grids require advances and novel approaches in simulation and testing. An approach that is increasingly gaining inter...
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ISBN:
(纸本)9781467324212
The challenges in achieving higher integration of Distributed Energy Resources (DER) in electricity grids require advances and novel approaches in simulation and testing. An approach that is increasingly gaining interest is hardware-in-the-loop (H IL) simulation and especially Power-hardware-in-the-loop (PHIL), where power equipment is connected to a simulated system. This paper firstly discusses interfacing issues of PHIL simulation providing a theoretical basis. A detailed description of the design and development phase of a PHIL environment for DER devices is provided. The development of the Power Interface, stability analysis and design of appropriate protection schemes are presented, aiming at assisting the development of other PHIL environments. As a first experiment, a voltage divider circuit is implemented in the PHIL approach. Subsequently, hardware PV panels and a PV inverter are connected at a simulated simple distribution grid and it is demonstrated that the voltage of the common-node follows the variation of the solar irradiation.
Due to some nonlinear factors and time delay in electronic throttle, the opening of electronic throttle is difficult to control. For overcoming these difficulties, in this paper a fuzzy adaptive PID controller is desi...
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ISBN:
(纸本)9783037852866
Due to some nonlinear factors and time delay in electronic throttle, the opening of electronic throttle is difficult to control. For overcoming these difficulties, in this paper a fuzzy adaptive PID controller is designed for an electronic throttle control system. The model of electronic throttle control system is built based on Matlab/Simulink and realized with a hardware-in-the-loop simulation system, which is based on MACS565. simulation research and experiment results show that, compared with PID control system, the fuzzy adaptive PID control system, has some advantages. The all performance index with the fuzzy adaptive PID control is better than that of the PID control.
This paper introduces a hardwaresimulation flow that is based on the Xilinx System Generator Tool (XSG), of an architecture for solving dense linear systems, presented as a strongly coupled system, which is in turn b...
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ISBN:
(纸本)9781467345675
This paper introduces a hardwaresimulation flow that is based on the Xilinx System Generator Tool (XSG), of an architecture for solving dense linear systems, presented as a strongly coupled system, which is in turn based on Gaussian Elimination using an FPGA. A functional verification process is achieved by taking advantage of the XSG, allowing both software and hardware-in-the-loop (HIL) simulations and using the respective results achieved in Matlab as a reference model. The linear system block embedded in the XSG can handle single, double and custom data precision, following the IEEE 754 floating point standard. The current architecture improves the use of internal RAM of the selected FPGA device (Virtex-5) through a special Memory Access Unit, reducing the data access among this RAM and the different modules in the architecture. Examples of systems of six equations, which are suitable for some robotics applications, have been used for comparing the performance of the Linear System block and Matlab, the latter used as a statistical estimator, in order to validate the data results.
The hardware-in-the-loop(HWIL) simulation test is one of the important parts for the development and performance testing of semi-active laser-guided weapons. In order to obtain accurate results, the confidence level o...
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ISBN:
(纸本)9780819490995
The hardware-in-the-loop(HWIL) simulation test is one of the important parts for the development and performance testing of semi-active laser-guided weapons. In order to obtain accurate results, the confidence level of the target environment should be provided for a high-seeker during the HWIL simulation test of semi-active laser-guided weapons, and one of the important simulation parameters is the laser energy characteristic. In this paper, based on the semi-active laser-guided weapon guidance principles, an important parameter of simulation of confidence which affects energy characteristics in performance test of HWIL simulation was analyzed. According to the principle of receiving the same energy by using HWIL simulation and in practical application, HWIL energy characteristics simulation systems with the crystal absorption structure was designed. And on this basis, the problems of optimal design of the optical system were also analyzed. The measured results show that the dynamic attenuation range of the system energy is greater than 50dB, the dynamic attenuation stability is less than 5%, and the maximum energy changing rate driven by the servo motor is greater than 20dB/s.
Real-time digital simulation of electrical machines and drives is a cost-effective approach to evaluate the true behavior of newly designed machines and controllers before applying them in a real system. Although many...
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ISBN:
(纸本)9781467327299
Real-time digital simulation of electrical machines and drives is a cost-effective approach to evaluate the true behavior of newly designed machines and controllers before applying them in a real system. Although many studies exist regarding the optimized models of power electronic drives and digital controllers for real-time simulation, the real-time models of electrical machines are still limited to the lumped parameter electric circuit models. This is mainly due to the complexity of a detailed electrical machine model which makes it computationally expensive. This paper presents the modeling, real-time implementation, finite element analysis, and experimental validation of a nonlinear geometrical permeance network based induction machine model. A nonlinear permeance network model (PNM) is developed for the real-time simulation of a 3 hp squirrel cage induction machine (SCIM) with closed rotor slots. Several studies both under open-loop and closed-loop control conditions are conducted and the results obtained from the off-line and real-time simulations and the experiment are compared with each other to show the effectiveness of the proposed PNM model.
This paper researches on embedded system design based on MC9s12Dp256 microcontroller for vehicle semi-active suspension. The hardware design of suspension control unit (SCU) is introduced. The integrated control strat...
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ISBN:
(纸本)9783037855034
This paper researches on embedded system design based on MC9s12Dp256 microcontroller for vehicle semi-active suspension. The hardware design of suspension control unit (SCU) is introduced. The integrated control strategy which integrates Skyhook and MiniMax strategies is proposed. The hardware-in-the-loop simulation (HILS) test on a two-degree-of-freedom quarter car semi-active suspension system model is carried out. The functions of SUC are verified and the performance of passive suspension and semi-active suspension is compared. The simulation results indicate that the performance of SCU achieves design requirement. In comparison with passive system, the control effect of integrated control strategy can be improved in ride comfort and drive safety.
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