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Test bench

About: Test bench is a research topic. Over the lifetime, 7776 publications have been published within this topic receiving 37639 citations. The topic is also known as: testing workbench.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a model predictive direct speed control (MP-DSC) is proposed, which overcomes limitations of cascaded linear controllers and selects plant inputs based on the predicted speed error.
Abstract: Servo drives and drives for position control require a high dynamic on speed control. In this paper, model predictive direct speed control (MP-DSC) is proposed, which overcomes limitations of cascaded linear controllers. The novel concept predicts the future current and speed states in discrete steps and it selects plant inputs which depends mainly on the predicted speed error. Secondary control objectives, such as maximum torque per ampere tracking are included. MP-DSC uses the finite control set approach which makes it suitable for online predictions with a prediction horizon of a few sample periods. The concept has been developed by simulation and evaluated on an experimental test bench. The overall control behavior is evaluated applying reference and disturbance steps to the system, where MP-DSC shows promising results. A solution for disturbance (e.g., load toque) rejection is proposed, and the effectiveness to avoid control offsets is shown. Furthermore, the dynamic performance and the steady-state behavior of MP-DSC is evaluated and discussed.

462 citations

Journal ArticleDOI
TL;DR: A comparative analysis of different energy management schemes for a fuel-cell-based emergency power system of a more-electric aircraft and the main criteria for performance comparison are the hydrogen consumption, the state of charges of the batteries/supercapacitors, and the overall system efficiency.
Abstract: This paper presents a comparative analysis of different energy management schemes for a fuel-cell-based emergency power system of a more-electric aircraft. The fuel-cell hybrid system considered in this paper consists of fuel cells, lithium-ion batteries, and supercapacitors, along with associated dc/dc and dc/ac converters. The energy management schemes addressed are state of the art and are most commonly used energy management techniques in fuel-cell vehicle applications, and they include the following: the state machine control strategy, the rule-based fuzzy logic strategy, the classical proportional-integral control strategy, the frequency decoupling/fuzzy logic control strategy, and the equivalent consumption minimization strategy. The main criteria for performance comparison are the hydrogen consumption, the state of charges of the batteries/supercapacitors, and the overall system efficiency. Moreover, the stresses on each energy source, which impact their life cycle, are measured using a new approach based on the wavelet transform of their instantaneous power. A simulation model and an experimental test bench are developed to validate all analysis and performances.

403 citations

Journal ArticleDOI
TL;DR: In this paper, a battery model with enough precision and suitable complexity is presented, where the model equations are built and the model parameters are identified with an online parameter identification method, and an evaluation is performed on the seven battery models by an experiment approach from the aspects of the estimation accuracy of the terminal voltages.

369 citations

Journal ArticleDOI
TL;DR: An overview of the various kinds of real-time and HIL simulation for relatively slow processes, like those in basic industries or heating systems, is discussed and the required models are described.

331 citations

Journal ArticleDOI
TL;DR: The test results presented in this paper show the validity of the proposed low-cost sensorless-control algorithm and underline the high dynamic performances of the sensor less-control system also with a reduced equipment.
Abstract: In this paper, a low-time-consuming and low-cost sensorless-control algorithm for high-dynamic performance permanent-magnet synchronous motors, both surface and internal permanent-magnet mounted for position and speed estimation, is introduced, discussed, and experimentally validated. This control algorithm is based on the estimation of rotor speed and angular position starting from the back electromotive force space-vector determination without voltage sensors by using the reference voltages given by the current controllers instead of the actual ones. This choice obviously introduces some errors that must be vanished by means of a compensating function. The novelties of the proposed estimation algorithm are the position-estimation equation and the process of compensation of the inverter phase lag that also suggests the final mathematical form of the estimation. The mathematical structure of the estimation guarantees a high degree of robustness against parameter variation as shown by the sensitivity analysis reported in this paper. Experimental verifications of the proposed sensorless-control system have been made with the aid of a flexible test bench for brushless motor electrical drives. The test results presented in this paper show the validity of the proposed low-cost sensorless-control algorithm and, above all, underline the high dynamic performances of the sensorless-control system also with a reduced equipment.

318 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023169
2022388
2021252
2020462
2019700
2018751