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Application of fuzzy logic control algorithm as stator power controller of a grid-connected doubly-fed induction generator

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Frontiers in Energy 2013年第1期7卷 49-55页

作者： Ridha CHEIKH Arezki MENACER Said DRID Mourad TIAR LGEB Laboratory Department of Electrical Engineering Biskra University Biskra 07000 Algeria LSPIE Laboratory Department of Propulsion-Induction Electromagnetic Electrical Engineering University of Bama Batna 05000 Algeria

This paper discusses the power outputs control of a grid-connected doubly-fed induction generator （DFIG） for a wind power generation systems. The DFIG structure control has a six diode rectifier and a PWM IGBT converter in order to control the power outputs of the DFIG driven by wind turbine. So, to supply commercially the electrical power to the grid without any problems related to power quality, the active and reactive powers （Ps, Qs） at the stator side of the DFIG are strictly controlled at a required level, which, in this paper, is realized with an optimized fuzzy logic controller based on the grid flux oriented control, which gives an optimal operation of the DFIG in sub-synchronous region, and the control of the stator power flow with the possibility of keeping stator power factor at a unity.

关键词： doubly-fed induction generator (DFIG) vector control fuzzy logic controller optimization power factor unity active and reactive power

DSP Based Digital control System Implementation of Permanent Magnet Synchronous Motor

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DSP Based Digital Control System Implementation of Permanent...

Comparative Study on Permanent Magnet Synchronous Motor control Systems in Elevator

第26届中国控制与决策会议

作者： LI Long Department of mechanical and electrical engineering Guidaojiaotong Polytechnic InstituteShenyang

ISBN: (纸本)9781479937066

The permanent magnet synchronous motor(PMSM) with high efficiency, high power factor, high control accuracy, high torque inertia, larger speed range and good torque smoothness, and a series of advantages, is playing a very important role in AC servo system. Based on vector control, a PI controller is designed to improve the control performance of permanent magnet synchronous motor. In order to realize the designed controller, a controller board based on TMS320F2812 DSP and a drive board is designed, the software is developed in C langrage on CCS.3 and the experimental results are debugged on the hardware platforms with software systems. The experimental results shows that the steady-state accuracy of the controller designed is higher and the overshoot is very small, which demonstrate the effectiveness of the controller designed in this paper and lay a software and hardware foundation for further study.

关键词： PMSM DSP vector control hardware circuits design software design

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Comparative Study on Permanent Magnet Synchronous Motor Cont...

Wide Speed Range Permanent Magnet Synchronous Generator Design for a DC Power System

第26届中国控制与决策会议

作者： Nie Mu-han Ma Hong-yan School of Electrical and Information Engineering Beijing University of Engineering and Architecture

ISBN: (纸本)9781479937066

PMSM has been used widely in elevator speed control *** on the mathematical model of PMSM and algorithm of inverter（CFPWM, SPWM, SVPWM）, PMSM vector control systems are built. By the software of MATLAB/Simulink, the control systems using three inverter methods of CFPWM, SPWM, SVPWM are comparative simulated and analyzed. The results show that the oscillating of torque, speed, and magnetic chain using SVPWM is the smallest and the performance of robustness is the best. PMSM vector control system using SVPWM is benefit for elevator steady operation.

关键词： PMSM elevator vector control CFPWM SPWM SVPWM

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Chinese Journal of Electrical Engineering 2017年第1期3卷 33-41页

作者： Dongmin Miao Yves Mollet Johan Gyselinck Jianxin Shen Department of Bio Electro And Mechanical SystemsUniversitéLibre de BruxellesBrussels1050Belgium Department of Electrical Engineering Zhejiang UniversityHangzhou310027China

A wide speed range permanent magnet synchronous generator(PMSG)system is studied in this paper,including the PMSG design and comparative study on control strategies with a pulse width modulation(PWM)rectifier,the purpose of which is to regulate the DC-link *** is of great importance to study the foregoing DC power system based on the PMSG and PWM rectifier,where vector control(VC)can be implemented and the corresponding field-weakening strategy can be realized by injecting a field-weakening current component without any auxiliary *** machine inductance is desired in order to limit the short-circuit current and the loaded voltage *** control strategies including VC,direct torque control(DTC)and direct voltage control(DVC)are studied and compared with both simulations and experiments.

关键词： Wide speed range permanent magnet synchronous generator PWM rectifier vector control field-weakening control direct torque control direct voltage control

中国对拟除虫菊酯处理蚊帐的研究和应用(英语)

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Insect Science 1994年第1期1卷 40-47页

作者：陆宝麟微生物流行病研究所媒介生物学及防治研究室北京100850

使用拟除虫菊酯浸泡蚊帐或喷洒在蚊帐上,是近年抗疟工作中媒介防治的重大进展.从八十年代起,我国在疟疾防治中就大规模采用这一方法,获得了良好的成效.本文对中国在这方面的实验室研究,实验小屋评价以及现场试验和实际应用,作一综合介绍... 详细信息

使用拟除虫菊酯浸泡蚊帐或喷洒在蚊帐上,是近年抗疟工作中媒介防治的重大进展.从八十年代起,我国在疟疾防治中就大规模采用这一方法,获得了良好的成效.本文对中国在这方面的实验室研究,实验小屋评价以及现场试验和实际应用,作一综合介绍.作者的结论是,拟除虫菊酯,特别是溴氰菊酯处理蚊帐是可行的蚊虫防治措施,在低度和中度疟疾流行区,可用以代替常规的DDT等杀虫剂室内滞留喷洒.

关键词： bednet treatment pyrethroids mosquitoes vector control antimalarial programmes

Interroll tension model adapted to a secondary annealing process

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Baosteel Technical Research 2021年第3期15卷 9-16页

作者： ZHANG Ran Silicon Steel Department Baoshan Iron&Steel Co.Ltd.Shanghai 200941China

Due to the special secondary rolling and annealing processes,the physical properties of strip ductility and stress relief differ from those of the general *** proportional integral differential(PID)algorithm for the annealing furnace tension control and the conventional control method that only controls the total tension of the furnace entrance and exit cannot meet production *** at the tension in the annealing furnace,the interroll tension model of the tension of the steel strip between the adjacent furnace rolls is *** combining the control principle of the annealing furnace roll transmission mechanism,the tension control involves the motor and frequency converter *** coupling relationship between the stator current and the motor’s output torque was determined through the asynchronous equivalent motor ***,the direct influence of the load torque on the calculated value of the motor’s output tension was obtained through the motor vector control ***,the frequency converter’s voltage control model was analyzed to control the motor’s output ***,the adjacent furnace roll tension and the horizontal annealing furnace tension were calculated through the interroll tension model.

关键词： asynchronous motor vector control tension model

Potential factors influencing lymphatic filariasis transmission in"hotspot"and"control"areas in Ghana:the importance of vectors

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Infectious Diseases of Poverty 2019年第1期8卷 45-55页

作者： Sellase Pi-Bansa Joseph Harold Nyarko Osei Kwadwo Kyeremeh Frempong Elizabeth Elhassan Osei Kweku Akuoko David Agyemang Collins Ahorlu Maxwell Alexander Appawu Benjamin Guibehi Koudou Michael David Wilson Dziedzom Komi de Souza Samuel Kweku Dadzie Jurg Utzinger Daniel Adjei Boakye Swiss Tropical and Public Health Institute BaselSwitzerland University of Basel BaselSwitzerland Noguchi Memorial Institute for Medical Research College of Health SciencesUniversity of GhanaLegonGhana Department of Animal Biology and Conservation Science University of GhanaLegonGhana SightSavers International Ghana OfficeAccraGhana African Regional Postgraduate Programme in Insect Science University of GhanaLegonGhana vector Biology Department Liverpool School of Tropical MedicineLiverpoolUK Centre Suisse de Recherches Scientifiques en Cote d'Ivoire AbidjanCote d'Ivoire

Background:Mass drug administration(MDA)programmes for the control of lymphatic filariasis in Ghana,have been ongoing in some endemic districts for 16 *** current study aimed to assess factors that govern the success of MDA programmes for breaking transmission of lymphatic filariasis in ***:The study was undertaken in two"hotspot"districts(Ahanta West and Kassena Nankana West)and two control districts(Mpohor and Bongo)in *** were collected and identified using morphological and molecular tools.A proportion of the cibarial armatures of each species was *** were performed onAnopheles gambiae for filarial worm detection.A questionnaire was administered to obtain information on MDA compliance and vector control *** were compared between districts to determine factors that might explain persistent transmission of lymphatic ***:High numbers of mosquitoes were sampled in Ahanta West district compared to Mpohor district(F=16.09,P=0.002).There was no significant difference between the numbers of mosquitoes collected in Kassena Nankana West and Bongo districts(F=2.16,P=0.185).Mansonia species were predominant in Ahanta West *** mosquitoes were prevalent in all *** with infected and infective filarial worms was found only in Ahanta West *** differences were found in cibarial teeth numbers and shape for mosquito species in the surveyed *** MDA coverage was high in all *** average use of bednet and indoor residual spraying was 82.4 and 66.2%,*** was high compliance in the five preceding MDA rounds in Ahanta West and Kassena Nankana West districts,both considered hotspots of lymphatic filariasis ***:The study on persistent transmission of lymphatic filariasis in the two areas in Ghana present information that shows the importance of local understanding of factors affecting control and elimination of lymphatic

关键词： Ghana Hotspots Lymphatic filariasis Mass drug administration Microfilariae Systematic non-compliance vector control

Would ivermectin for malaria control be beneficial in onchocerciasis-endemic regions?

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Infectious Diseases of Poverty 2019年第4期8卷 108-108页

作者： Joseph Nelson Siewe Fodjo Marina Kugler An Hotterbeekx Adam Hendy Jean-Pierre Van Geertruyden Robert Colebunders Global Health Institute University of AntwerpKinsbergen centrumDoornstraat 3312610 AntwerpBelgium 不详

Background:There is accumulating evidence supporting the use of ivermectin as a malaria control *** findings from the repeat ivermectin mass drug administrations for control of malaria trial demonstrated a reduced incidence of malaria in villages which received repeated ivermectin mass drug administration(MDA;six doses)compared to those who had only one round of *** other studies investigating the benefits of ivermectin for malaria purposes are ongoing/*** text:While ivermectin MDA offers promising perspectives in the fight against malaria,we highlight the added benefits and anticipated challenges of conducting future studies in onchocerciasis-endemic regions,which are confronted with a substantial disease burden including onchocerciasis-associated *** the frequency of ivermectin MDA in such places may reduce the burden of both malaria and onchocerciasis,and allow for more entomological investigations on both the Anopheles mosquitoes and the ***,acceptability and feasibility studies are needed to assess the endorsement by the local populations,as well as the programmatic feasibility of implementing ivermectin MDA several times a ***:Onchocerciasis-endemic sites would doubly benefit from ivermectin MDA interventions,as these will alleviate onchocerciasis-associated morbidity and mortality,while potentially curbing malaria *** onchocerciasis programs and other relevant stakeholders in the malaria/ivermectin research agenda would foster the implementation of pluri-annual MDA in target communities.

关键词： Malaria Ivermectin Onchocerciasis Mass drug administration vector control

Dengue fever in Pakistan:Challenges,priorities and measures

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Journal of Coastal Life Medicine 2015年第10期 834-837页

作者： Javid Ali Pakistan Council of Scientific and Industrial Research Laboratories ComplexJamrud Road PeshawarIslamabadPakistan

Currently,there is no huge scale study on threat aspects and incidence of dengue fever in Pakistan,as a result it must be carried out on a priority *** is the responsibility of the government to establish local community based laboratories and excellence research center for dengue cure,awareness and *** ailment could be cured in proper and better *** treatment of dengue is extremely difficult due to lack of available vaccines.A developing country like Pakistan cannot handle the problems due to lake of awareness,behavior of people,terrorisms and other socioeconomic factors of the country as well as government interest to cope the other problems as compared to this ***,more measures should be carried out to prevent the disease.

关键词： Dengue fever Prevention vector control Vaccine