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Analysis of Compressor control Structures and algorithms for Compressor Drives for Automobile Gas Filling Compressor Stations

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Procedia Computer Science 2018年 145卷 652-655页

作者： Andrew A. Evstifeev Margarita A. Zaeva National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) Kashirskoe shosse 31 Moscow 115409 Russia LLC Gazprom VNIIGAZ Leninsky district Razvilkovsky village Razvilka 5537 Proyektiruyemyy Proyezd 15-1 Moscow region 142717 Russia

Prototypes of structures and control algorithms for compressor drives for automobile gas filling compressor stations are considered. The stations have switching facilities with semiconductor switches on fully managed switches. Examples of realization and technical solutions for controlling compressor drives of different designs, performance and power are given.

关键词： control algorithm automobile gas filling compressor station compressor

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Insulin delivery and nocturnal glucose control in children and adolescents with type 1 diabetes

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EXPERT OPINION ON DRUG DELIVERY 2017年第12期14卷 1367-1377页

作者： Tauschmann, Martin Hovorka, Roman Univ Cambridge Wellcome Trust MRC Inst Metab Sci Cambridge England Univ Cambridge Dept Paediat Cambridge England

Introduction: Nocturnal glucose control remains challenging in children and adolescents with type 1 diabetes due to highly variable overnight insulin requirements. The issue may be addressed by glucose responsive insulin delivery based on real-time continuous glucose measurements. Areas covered: This review outlines recent developments of glucose responsive insulin delivery systems from a paediatric perspective. We cover threshold-based suspend application, predictive low glucose suspend, and more advanced single hormone and dual-hormone closed-loop systems. Approaches are evaluated in relation to nocturnal glucose control particularly during outpatient randomised controlled trials. Expert opinion: Significant progress translating research from controlled clinical centre settings to free-living unsupervised home studies have been achieved over the past decade. Nocturnal glycaemic control can be improved whilst reducing the risk of hypoglycaemia with closed-loop systems. Following the US regulatory approval of the first hybrid closed-loop system in non-paediatric population, large multinational closed-loop clinical trials and pivotal studies including paediatric populations are underway or in preparation to facilitate the use of closed-loop systems in clinical practice.

关键词： Threshold-based insulin interruption low glucose suspension predictive low glucose suspension artificial pancreas closed-loop system type 1 diabetes control algorithm insulin pump continuous glucose monitor

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MCSR and SCSR control algorithms for Providing Power Quality in Electrical Grids 18

MCSR and SCSR Control Algorithms for Providing Power Quality...

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18th Mediterranean Electrotechnical Conference (MELECON)

作者： Oleksyuk, Boris Karymov, Rinat Cioban, Victor Natl Res Univ MPEI Moscow Russia SKRM Moscow Russia FARAMAX Luzern Switzerland

ISBN: (纸本)9781509000586

The development of power engineering leads to the growing need for flexible systems allowing control of electrical grid modes, transients and increase the efficiency of power systems. In the last decade the most rapidly developing group of controlled devices, which use magnetization characteristic of electrotechnical steel for power control, are magnetically controlled shunt reactors and sources of reactive power based on controlled reactors. Due to the control principle used in these devices, as well as in other types of FACTS, they produce current harmonics. The paper presents two developed reactor control algorithms that reduce its negative impact on the voltage waveform distortion in the nodes of electrical grid.

关键词： magnetically controlled shunt reactor SCSR power quality control algorithm current and voltage harmonics automatic control system

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Development of Flexible Mirror control algorithms

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ATMOSPHERIC AND OCEANIC OPTICS 2016年第1期29卷 84-88页

作者： Antoshkin, L. V. Lavrinov, V. V. Lavrinova, L. N. Russian Acad Sci Siberian Branch VE Zuev Inst Atmospher Opt Pl Akad Zueva 1 Tomsk 634055 Russia

To reduce the effect of the time delay on the operation of an adaptive system treated as a dynamic feedback system, the present-day approach to the correction of turbulent distortions of optical radiation supposes application of new control algorithms for the correcting mirror on the basis of forecasting phase distortions. Results of the numerical simulation are presented.

关键词： wavefront control algorithm flexible mirror

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Optimal operation of hybrid power systems including renewable sources in the sugar cane industry

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IET RENEWABLE POWER GENERATION 2017年第8期11卷 1237-1245页

作者： Morato, Marcelo Menezes da Costa Mendes, Paulo Renato Normey-Rico, Julio Elias Bordons, Carlos Univ Fed Santa Catarina DAS Florianopolis SC Brazil Univ Seville Dept Ingn Sistemas & Automat Seville Spain

This study presents a control structure, based on model predictive control, applied to energy management optimisation in a sugar cane processing plant including renewable sources. The proposed energy plant is set upon a sugar cane processing industry and has to produce and maintain an amount of electric power throughout the year, defined by contract. This plant is, also, bound to produce flows of steam in different pressures, to comply to the demands of the production process of ethanol and sugar, from the sugar cane. The renewable sources in the system include photovoltaic, wind power generation and the use of biomass, from the remains of the sugar cane. The proposed control algorithm has the task of performing the management of which energy system to use (combined heat and power generation systems, boilers or others), maximise the use of renewable energy sources, maximise the gains of the boilers (that vary according to the biomass mixture used), manage the use of energy storages and supply the defined amount of energy. Simulation results show the satisfactory operation of the proposed control structure.

关键词： sugar industry hybrid power systems photovoltaic power systems wind power plants bioenergy conversion predictive control power generation control cogeneration boilers energy management systems optimisation energy storage optimal operation hybrid power systems sugar cane industry control structure model predictive control energy management optimisation sugar cane processing plant steam flows ethanol production process photovoltaic power generation wind power generation biomass control algorithm energy system management combined heat and power generation systems boilers renewable energy sources energy storages

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Estimation of Time Intervals During Mobile Robot Digital control 10

Estimation of Time Intervals During Mobile Robot Digital Con...

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10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI)

作者： Larkin, Eugene Kotov, Vladislav Kotova, Natalia Tula State Univ Ind Robot Dept Tula Russia

ISBN: (纸本)9781538619377

The analysis of a standard flowchart for a mobile robot digital control is performed. It is shown that the controller is a unit which introduces time disturbances in the process of control. A typical control algorithm and its model based on the semi-Markov process theory are worked out. The dependencies for evaluation of walk time through the states of an ergodic semi-Markov process are obtained. The reducibility of the semi-Markov process into the Markov process with a continual time is shown. The theoretical results are confirmed by simulation with use of the Monte-Carlo method.

关键词： Von-Neumann computer transaction control algorithm semi-Markov process walk time interval

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Design of the Motorized Spindle Temperature control System with PID algorithm 2nd

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2nd International Conference on Harmony Search algorithm (ICHSA)

作者： Zhang, Lixiu Liu, Teng Wu, Yuhou Shenyang Jianzhu Univ Shenyang 110168 Peoples R China

ISBN: (纸本)9783662479261;9783662479254

The thermal error of the motorized spindle has great influence on the accuracy of the NC machine tools. In order to reduce the thermal error, the increase type PID control algorithm is adopted for the control system which can make the temperature controlled in reasonable range. In accordance with the control object features, the Application of the control algorithm is realized in MCU System. Finally, the experiments are carried out which verified the validity and effectiveness of the design of temperature control system by analysis of the experimental data.

关键词： PID control Temperature measurement control algorithm Motorized spindle

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Integrated Cable Vibration control System using Wireless Sensors

Integrated Cable Vibration Control System using Wireless Sen...

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Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems

作者： Jeong, Seunghoo Cho, Soojin Sim, Sung-Han UNIST Sch Urban & Environm Engn Ulsan 44919 South Korea Univ Seoul Dept Civil Engn Seoul 02504 South Korea

ISBN: (数字)9781510608221

ISBN: (纸本)9781510608221

As the number of long-span bridges is increasing worldwide, maintaining their structural integrity and safety become an important issue. Because the stay cable is a critical member in most long-span bridges and vulnerable to wind-induced vibrations, vibration mitigation has been of interest both in academia and practice. While active and semi-active control schemes are known to be quite effective in vibration reduction compared to the passive control, requirements for equipment including data acquisition, control devices, and power supply prevent a widespread adoption in real-world applications. This study develops an integrated system for vibration control of stay-cables using wireless sensors implementing a semi-active control. Arduino, a low-cost single board system, is employed with a MEMS digital accelerometer and a Zigbee wireless communication module to build the wireless sensor. The magneto-rheological (MR) damper is selected as a damping device, controlled by an optimal control algorithm implemented on the Arduino sensing system. The developed integrated system is tested in a laboratory environment using a cable to demonstrate the effectiveness of the proposed system on vibration reduction. The proposed system is shown to reduce the vibration of stay-cables with low operating power effectively.

关键词： Stay-cables Cable vibration Arduino control algorithm Magneto-rheological (MR) damper

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Development of Real Time Emulator for control and Diagnosis Purpose of Photovoltaic Generator 6

Development of Real Time Emulator for Control and Diagnosis ...

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6th International Conference on Systems and control (ICSC)

作者： Belaout, A. Krim, F. Talbi, B. Feroura, H. Laib, A. Bouyahia, S. Arabi, A. Power Elect & Ind Control Lab Setif 19000 Algeria Setif 1 Univ Setif 19000 Algeria Setif 1 Univ Elect Dept Setif 19000 Algeria Power Elect & Ind Control Lab LEPCI Setif 19000 Algeria AMO Univ Bouira Elect Engn Dept FSSA Bouira Algeria

ISBN: (纸本)9781509039609

this paper proposes a real time emulator for Photovoltaic Generator (PVG), permitting easy experimentation, for control and diagnosis algorithms tests. The DS1104 platform is utilized in order to implement the model developed in Matlab/Simulink software. The APS1102A Programmable DC/AC Power Source is utilized to emulate the current-voltage characteristics of the PVG model implemented in the DS1104 platform. The proposed emulator is tested and validated by considering real conditions variations (namely, temperature and irradiance), and as well as, by injecting some frequently occurring PVG faults. The PVG emulator proposed shows a perfect reproduction of the current-voltage (I-V) characteristics, and can easily handle control and diagnostic algorithms.

关键词： PV emulator Photovoltaic System Programmable Power source Diagnosis algorithm control algorithm

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Performance Analysis of Conventional and Digital PWM control Scheme for Speed control of BLDC Motor Drives

Performance Analysis of Conventional and Digital PWM Control...

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IEEE International Conference on Advances in Electrical Technology for Green Energy (ICAETGT)

作者： Azarudeen, A. Mary, Dolly Rajiv Gandhi Inst Technol Dept Elect Engn Kottayam Kerala India

ISBN: (纸本)9781538621387

This paper presents the performance analysis of conventional and digital pulse width modulation (PWM) control scheme for speed control of electronically commuted trapezoidal Brushless dc (BLDC) motor. Both these methods follow the PWM speed control strategy, only difference is in the controller part. One drive system consist of conventional PI controller and the other have digital controller. This paper includes discussion on the implementation of both the techniques and their performances are compared. Co- simulation of closed loop control systems are modeled by using Xilinx Integrated Software Environment (ISE) simulator and MATLAB/Simulink. Experimental test setup is carried out using field-programmable gate arrays (FPGA). Simulation results and effectiveness of the methods are proved and validated by experimental results. The results of the two techniques are compared and conclusions are made.

关键词： Brushless dc (BLDC) Pulse Width Modulation (PWM) field-programmable gate arrays (FPGAs) Voltage source inverter (VSI) control algorithm

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