Design and Control of Brushless DC Motor Drives for Refrigerated Cabinets

Chao, Kuei‐Hsiang; Chang, Long-Yi; Hung, Chih-Yao

doi:10.3390/en15093453

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…Upgrading components and control strategies seems to be one of the most efficient ways to improve the performance of current systems. Compressors, heat exchangers, valves [49][50][51], changes from asynchronous towards brushless motors [51,52], implementation of variable speed drivers for pumps and fans [53], energy monitoring, and data management [54]. The use of a floating condensing control can significantly reduce the overall electricity consumption of compressors and fans [55].…”

Section: Basic Refrigeration Systemmentioning

confidence: 99%

A Review of Energy-Efficient Technologies and Decarbonating Solutions for Process Heat in the Food Industry

Faraldo,

Byrne

2024

Energies

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Heat is involved in many processes in the food industry: drying, dissolving, centrifugation, extraction, cleaning, washing, and cooling. Heat generation encompasses nearly all processes. This review first presents two representative case studies in order to identify which processes rely on the major energy consumption and greenhouse gas (GHG) emissions. Energy-saving and decarbonating potential solutions are explored through a thorough review of technologies employed in refrigeration, heat generation, waste heat recovery, and thermal energy storage. Information from industrial plants is collected to show their performance under real conditions. The replacement of high-GWP (global warming potential) refrigerants by natural fluids in the refrigeration sector acts to lower GHG emissions. Being the greatest consumers, the heat generation technologies are compared using the levelized cost of heat (LCOH). This analysis shows that absorption heat transformers and high-temperature heat pumps are the most interesting technologies from the economic and decarbonation points of view, while waste heat recovery technologies present the shortest payback periods. In all sectors, energy efficiency improvements on components, storage technologies, polygeneration systems, the concept of smart industry, and the penetration of renewable energy sources appear as valuable pathways.

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Section: Basic Refrigeration Systemmentioning

confidence: 99%

A Review of Energy-Efficient Technologies and Decarbonating Solutions for Process Heat in the Food Industry

Faraldo,

Byrne

2024

Energies

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“…A DC motor is a machine component that converts electrical energy into kinetic energy. The use of DC motors is widespread in many applications, mainly as an actuator, for example, in a mobile robot [1], an underwater vehicle [2], a fuel mixing process [3], a refrigerated cabinet [4], a solar tracker [5] and so on. Many studies were conducted on many aspects, such as control relating to its energy consumption [6] and its angular position control [7].…”

Section: Introductionmentioning

confidence: 99%

Development of DC Motor Speed Control Using PID Based on Arduino and Matlab For Laboratory Trainer

Supriyono,

Alanro,

Supardi

2024

JNTE

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DC motors are widely used as propulsions, including in electric bicycles. The problem faced by students in the DC motor control laboratory working using software simulation is that they do not have practical learning experience using digital instruments. This article aims to develop a DC motor speed control that can be used to learn practical Proportional Integral Derivative (PID) control in the laboratory. The DC motor speed control was developed using a combination of Arduino UNO microcontroller and Matlab software. The PID method was used because it is still broadly studied and applied in industries. The test results showed that the developed trainer can work well with PID variable values that can be entered via the keypad, and DC motor transient responses can be displayed in Matlab. From the experimental results, it was found that the optimal PID variable values were Kp=0.04, Ki=0.05, and Kd=0.004, where the controller produced a low overshoot value, i.e., 0.73% of its set point and a settling time of 10.66 seconds. The test results of using the developed trainer in the Fundamental of Control Engineering laboratory work showed that the developed trainer gave students practical learning experience in designing PID control for DC motor speed by using digital equipment, i.e., microcontroller and actual DC motor as well as analyzing its corresponding transient response in Matlab software environment

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“…Thus, system instability could be induced easily. Therefore, the smart method of extendable fuzzy theory (EFT) was adopted in this paper [5]. Under different working conditions, such a method could automatically select suitable weighting factors and improve the controller performance of the induction motor drive system.…”

Section: Introductionmentioning

confidence: 99%

Design of a Robust Controller for Induction Motor Drive Systems Based on Extendable Fuzzy Theory

Chao,

Chang

2024

Preprint

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In this paper, an extendable fuzzy robust speed controller suitable for induction motor drive system was proposed. Firstly, the two-degrees-of-freedom (2DOF) robust control technology with feedforward control and disturbance elimination method was adopted. Upon parameter variation and load disturbance, the motor drive system could utilize a robust controller to generate compensation signals and reduce the impact on controlling performance of the motor drive system. The magnitude of the compensation signal was adjusted via the weighting factor. However, should a fixed weighting factor be adopted, system instability might be generated easily when time delay and saturation of control force occur. Based on the above, the smart method of extendable fuzzy theory (EFT) was adopted in this paper to adjust adequate weighting factors, where the controlling performance of the induction motor drive system could be improved accordingly. The method divided the speed difference between motor speed command and actual speed of the induction motor, and the variation rate for such speed difference into 20 regional categories. The correlation degree between the speed difference of actual feedback, variation rate for speed difference and each regional category was then calculated, where more suitable weighting factor was selected. Therefore, the proposed extendable fuzzy robust 2DOF controller with variable weighting factor designed will allow better performance for response in speed tracking and load regulation. Lastly, the simulation software Matlab/Simulink was applied to simulate the utilization of the controlling method proposed for the induction motor drive system. For both the response in speed tracking and load regulation, the simulation results proved that the extendable fuzzy robust speed controller proposed provided better controlling performance than the conventional robust controller.

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Design and Control of Brushless DC Motor Drives for Refrigerated Cabinets

Cited by 7 publications

References 15 publications

A Review of Energy-Efficient Technologies and Decarbonating Solutions for Process Heat in the Food Industry

A Review of Energy-Efficient Technologies and Decarbonating Solutions for Process Heat in the Food Industry

Development of DC Motor Speed Control Using PID Based on Arduino and Matlab For Laboratory Trainer

Design of a Robust Controller for Induction Motor Drive Systems Based on Extendable Fuzzy Theory

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