This paper deals with the calculation of a vector of reliable weights of decision alternatives on the basis of interval pairwise comparison judgments of experts. These weights are used to construct the ranking of decision alternatives and to solve selection problems, problems of ratings construction, resources allocation problems, scenarios evaluation problems, and other decision making problems. A comparative analysis of several popular models, which calculate interval weights on the basis of interval pairwise comparison matrices (IPCMs), was performed. The features of these models when they are applied to IPCMs with different inconsistency levels were identified. An algorithm is proposed which contains the stages for analyzing and increasing the IPCM inconsistency, calculating normalized interval weights, and calculating the ranking of decision alternatives on the basis of the resulting interval weights. It was found that the property of weak order preservation usually allowed identifying order-related intransitive expert pairwise comparison judgments. The correction of these elements leads to the removal of contradictions in resulting weights and increases the accuracy and reliability of results.
{"title":"Estimation of Decision Alternatives on the Basis of Interval Pairwise Comparison Matrices","authors":"N. Pankratova, N. Nedashkovskaya","doi":"10.4236/ICA.2016.72005","DOIUrl":"https://doi.org/10.4236/ICA.2016.72005","url":null,"abstract":"This paper deals with the calculation of a vector of reliable weights of decision \u0000alternatives on the basis of interval pairwise comparison judgments of experts. \u0000These weights are used to construct the ranking of decision alternatives and to \u0000solve selection problems, problems of ratings construction, resources allocation \u0000problems, scenarios evaluation problems, and other decision making problems. A \u0000comparative analysis of several popular models, which calculate interval \u0000weights on the basis of interval pairwise comparison matrices (IPCMs), was \u0000performed. The features of these models when they are applied to IPCMs with \u0000different inconsistency levels were identified. An algorithm is proposed which \u0000contains the stages for analyzing and increasing the IPCM inconsistency, \u0000calculating normalized interval weights, and calculating the ranking of \u0000decision alternatives on the basis of the resulting interval weights. It was \u0000found that the property of weak order preservation usually allowed identifying \u0000order-related intransitive expert pairwise comparison judgments. The correction \u0000of these elements leads to the removal of contradictions in resulting weights \u0000and increases the accuracy and reliability of results.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"39-54"},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70626261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A method and apparatus for monitoring heart rate of the heart using a wearable system is designed and implemented in this paper. A heart rate receives from heart beat signals and stores the data to a database and after a time period this method can determine an idle heart rate of the monitoring body. This idle heart rate is compared with the stored data and can determine the normal and abnormal heart rate variability. After the certain time period this system can detect the heart rate and also can send a signal to the user in time of abnormalities. Consequent estimations of heart rate variability are contrasted with this.
{"title":"An Intelligent Sensor Based System for Real Time Heart Rate Monitoring (HRM)","authors":"N. Farin, S. M. Sharif, I. Mobin","doi":"10.4236/ICA.2016.72006","DOIUrl":"https://doi.org/10.4236/ICA.2016.72006","url":null,"abstract":"A method and apparatus for monitoring heart rate of the heart using a wearable system is designed and implemented in this paper. A heart rate receives from heart beat signals and stores the data to a database and after a time period this method can determine an idle heart rate of the monitoring body. This idle heart rate is compared with the stored data and can determine the normal and abnormal heart rate variability. After the certain time period this system can detect the heart rate and also can send a signal to the user in time of abnormalities. Consequent estimations of heart rate variability are contrasted with this.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"55-62"},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Merna N. Abou Eita, Mostafa W. Hussein, A. A. Ibrahim, Shereen S. Abouelazayem, M. A. Morsi, E. Moustafa, Hassan H. Halawa, R. Daoud, H. Amer, H. Elsayed
This paper presents a novel fault-tolerant networked control system architecture consisting of two cells working in-line. This architecture is fault-tolerant at the level of the controllers as well as the sensors. Each cell is based on the sensor-to-actuator approach and has an additional supervisor node. It is proven, via analysis as well as OMNeT++ simulations that the production line succeeds in meeting all control system requirements with no dropped or over-delayed packets. A reliability analysis is then undertaken to quantitatively estimate the increase in reliability due to the introduction of fault-tolerance.
{"title":"Multi-Node Fault-Tolerant Two-Cell Real-Time S2A Network","authors":"Merna N. Abou Eita, Mostafa W. Hussein, A. A. Ibrahim, Shereen S. Abouelazayem, M. A. Morsi, E. Moustafa, Hassan H. Halawa, R. Daoud, H. Amer, H. Elsayed","doi":"10.4236/ICA.2016.72004","DOIUrl":"https://doi.org/10.4236/ICA.2016.72004","url":null,"abstract":"This paper presents a novel fault-tolerant networked control system \u0000architecture consisting of two cells working in-line. This architecture is \u0000fault-tolerant at the level of the controllers as well as the sensors. Each \u0000cell is based on the sensor-to-actuator approach and has an additional supervisor \u0000node. It is proven, via analysis as well as OMNeT++ simulations that the \u0000production line succeeds in meeting all control system requirements with no \u0000dropped or over-delayed packets. A reliability analysis is then undertaken to \u0000quantitatively estimate the increase in reliability due to the introduction of \u0000fault-tolerance.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"25-38"},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70626208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pierre Tety, A. Konaté, O. Asseu, E. Soro, P. Yoboué
This paper presents a robust sixth-order Discrete-time Extended Sliding Mode Observer (DESMO) for sensorless control of PMSM in order to estimate the currents, speed, rotor position, load torque and stator resistance. The satisfying simulation results on Simulink/Matlab environment for a 1.6 kW PMSM demonstrate the good performance and stability of the proposed ESMO algorithm against parameter variation, modeling uncertainty, measurement and system noises.
{"title":"An Extended Sliding Mode Observer for Speed, Position and Torque Sensorless Control for PMSM Drive Based Stator Resistance Estimator","authors":"Pierre Tety, A. Konaté, O. Asseu, E. Soro, P. Yoboué","doi":"10.4236/ICA.2016.71001","DOIUrl":"https://doi.org/10.4236/ICA.2016.71001","url":null,"abstract":"This paper presents a robust sixth-order Discrete-time Extended Sliding Mode Observer (DESMO) for sensorless control of PMSM in order to estimate the currents, speed, rotor position, load torque and stator resistance. The satisfying simulation results on Simulink/Matlab environment for a 1.6 kW PMSM demonstrate the good performance and stability of the proposed ESMO algorithm against parameter variation, modeling uncertainty, measurement and system noises.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2016-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper investigates the flocking problem in multi-agent system with time-varying delay and a virtual leader. Each agent here is subject to nonlinear dynamics. For the system, the corresponding algorithm with time-varying delay is proposed. Under the assumption that the initial network is connected, it is proved that the distance between agents is in the desired distance. The theoretical deduction shows that the stable flocking motion is achieved.
{"title":"Flocking for Leader-Following Multi-Agent Systems with Time-Varying Delay","authors":"Fenglan Sun, Rui Wang, Yongfu Li, Feng Liu","doi":"10.4236/ICA.2016.71002","DOIUrl":"https://doi.org/10.4236/ICA.2016.71002","url":null,"abstract":"This paper investigates the flocking problem in multi-agent system with time-varying delay and a virtual leader. Each agent here is subject to nonlinear dynamics. For the system, the corresponding algorithm with time-varying delay is proposed. Under the assumption that the initial network is connected, it is proved that the distance between agents is in the desired distance. The theoretical deduction shows that the stable flocking motion is achieved.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"07 1","pages":"9-15"},"PeriodicalIF":0.0,"publicationDate":"2016-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a motion planning gap-based algorithms for mobile robots in an unknown environment for exploration purposes. The results are locally optimal and sufficient to navigate and explore the environment. In contrast with the traditional roadmap-based algorithms, our proposed algorithm is designed to use minimal sensory data instead of costly ones. Therefore, we adopt a dynamic data structure called Gap Navigation Trees (GNT), which keeps track of the depth discontinuities (gaps) of the local environment. It is incrementally constructed as the robot which navigates the environment. Upon exploring the whole environment, the resulting final data structure exemplifies the roadmap required for further processing. To avoid infinite cycles, we propose to use landmarks. Similar to traditional roadmap techniques, the resulting algorithm can serve key applications such as exploration and target finding. The simulation results endorse this conclusion. However, our solution is cost effective, when compared to traditional roadmap systems, which makes it more attractive to use in some applications such as search and rescue in hazardous environments.
{"title":"Gap Navigation Trees for Discovering Unknown Environments","authors":"Reem Nasir, Ashraf Elnagar","doi":"10.4236/ICA.2015.64022","DOIUrl":"https://doi.org/10.4236/ICA.2015.64022","url":null,"abstract":"We propose a motion \u0000planning gap-based algorithms for mobile robots in an unknown environment for \u0000exploration purposes. The results are locally optimal and sufficient to \u0000navigate and explore the environment. In contrast with the traditional \u0000roadmap-based algorithms, our proposed algorithm is designed to use minimal \u0000sensory data instead of costly ones. Therefore, we adopt a dynamic data \u0000structure called Gap Navigation Trees (GNT), which keeps track of the depth \u0000discontinuities (gaps) of the local environment. It is incrementally \u0000constructed as the robot which navigates the environment. Upon exploring the \u0000whole environment, the resulting final data structure exemplifies the roadmap \u0000required for further processing. To avoid infinite cycles, we propose to use \u0000landmarks. Similar to traditional roadmap techniques, the resulting algorithm \u0000can serve key applications such as exploration and target finding. The \u0000simulation results endorse this conclusion. However, our solution is cost \u0000effective, when compared to traditional roadmap systems, which makes it more \u0000attractive to use in some applications such as search and rescue in hazardous \u0000environments.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"229-240"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Sargolzaei, K. Yen, M. Abdelghani, A. Mehbodniya, S. Sargolzaei
In this paper, we focus on the estimation of time delays caused by adversaries in the sensing loop (SL). Based on the literature review, time delay switch (TDS) attacks could make any control system, in particular a power control system, unstable. Therefore, future smart grids will have to use advanced methods to provide better situational awareness of power grid states keeping smart grids reliable and safe from TDS attacks. Here, we introduce a simple method for preventing time delay switch attack on networked control systems. The method relies on an estimator that will estimate and track time delays introduced by an adversary. Knowing the maximum tolerable time delay of the plant’s optimal controller for which the plant remains stable, a time-delay detector issues an alarm signal when the estimated time delay is larger than the minimum one and directs the system to alarm state. In an alarm state, the plant operates under the control of an emergency controller that is local to the plant and remains in this mode until the networked control system state is restored. This method is an inexpensive and simple way to guarantee that an industrial control system remains stable and secure.
{"title":"A Novel Technique for Detection of Time Delay Switch Attack on Load Frequency Control","authors":"A. Sargolzaei, K. Yen, M. Abdelghani, A. Mehbodniya, S. Sargolzaei","doi":"10.4236/ICA.2015.64020","DOIUrl":"https://doi.org/10.4236/ICA.2015.64020","url":null,"abstract":"In this paper, we focus on the estimation of time delays caused by adversaries in the sensing loop (SL). Based on the literature review, time delay switch (TDS) attacks could make any control system, in particular a power control system, unstable. Therefore, future smart grids will have to use advanced methods to provide better situational awareness of power grid states keeping smart grids reliable and safe from TDS attacks. Here, we introduce a simple method for preventing time delay switch attack on networked control systems. The method relies on an estimator that will estimate and track time delays introduced by an adversary. Knowing the maximum tolerable time delay of the plant’s optimal controller for which the plant remains stable, a time-delay detector issues an alarm signal when the estimated time delay is larger than the minimum one and directs the system to alarm state. In an alarm state, the plant operates under the control of an emergency controller that is local to the plant and remains in this mode until the networked control system state is restored. This method is an inexpensive and simple way to guarantee that an industrial control system remains stable and secure.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"205-214"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Because its high efficiency, its simple stator and rotor structures, the low cost and high reliability, speed operation combined with robust and low cost construction, the switched reluctance machines have represented. In recent years, an interesting alternative to other machine types has been chosen for traction applications especially starter-generator. Their rotors do not generate significant heat, resulting in easy cooling. Their unidirectional flux and current may generate lower core losses and require a simple converter design. Moreover, the switched reluctance machines are known for their high reliability and capability of operating in four quadrants for a variable speed drive. Despite those merits, switched reluctance machine has not been extensively used until recently because of its problems of torque ripples and noise. Additionally, researchers have faced many difficulties to build a SRM model because it is inherently multivariable. It has strong coupling and especially a high nonlinearity. In this paper, we deal with many modeling methods. Numerical, analytical and intelligent approaches are studied. The important aim in this research is to use static results from FEMM simulation as flux-linkage, co-energy, static torque to form a dynamic model of a switched reluctance machine used next as a starter-generator of a hybrid vehicle.
{"title":"Static Simulation of a 12/8 Switched Reluctance Machine (Application: Starter-Generator)","authors":"Sihem Saidani, M. Ghariani","doi":"10.4236/ICA.2015.64025","DOIUrl":"https://doi.org/10.4236/ICA.2015.64025","url":null,"abstract":"Because its high efficiency, its simple stator and rotor structures, the low cost and high reliability, speed operation combined with robust and low cost construction, the switched reluctance machines have represented. In recent years, an interesting alternative to other machine types has been chosen for traction applications especially starter-generator. Their rotors do not generate significant heat, resulting in easy cooling. Their unidirectional flux and current may generate lower core losses and require a simple converter design. Moreover, the switched reluctance machines are known for their high reliability and capability of operating in four quadrants for a variable speed drive. Despite those merits, switched reluctance machine has not been extensively used until recently because of its problems of torque ripples and noise. Additionally, researchers have faced many difficulties to build a SRM model because it is inherently multivariable. It has strong coupling and especially a high nonlinearity. In this paper, we deal with many modeling methods. Numerical, analytical and intelligent approaches are studied. The important aim in this research is to use static results from FEMM simulation as flux-linkage, co-energy, static torque to form a dynamic model of a switched reluctance machine used next as a starter-generator of a hybrid vehicle.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"271-288"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Ahmad, Ebraheem Sultan, Mohammed Q. Qasem, H. Ebraheem, Jasem M. Alostad
This paper presents a continuous-time adaptive control scheme for systems with uncertain non-symmetrical deadzone nonlinearity located at the output of a plant. An adaptive inverse function is developed and used in conjunction with a robust adaptive controller to reduce the effect of deadzone nonlinearity. The deadzone inverse function is also implemented in continuous time, and an adaptive update law is designed to estimate the deadzone parameters. The adaptive output deadzone inverse controller is smoothly differentiable and is combined with a robust adaptive nonlinear controller to ensure robustness and boundedness of all the states of the system as well as the output signal. The mismatch between the ideal deadzone inverse function and our proposed implantation is treated as a disturbance that can be upper bounded by a polynomial in the system states. The overall stability of the closed-loop system is proven by using Lyapunov method, and simulations confirm the efficacy of the control methodology.
{"title":"Adaptive Control for a Class of Systems with Output Deadzone Nonlinearity","authors":"N. Ahmad, Ebraheem Sultan, Mohammed Q. Qasem, H. Ebraheem, Jasem M. Alostad","doi":"10.4236/ICA.2015.64021","DOIUrl":"https://doi.org/10.4236/ICA.2015.64021","url":null,"abstract":"This paper presents a continuous-time adaptive control scheme for systems with uncertain non-symmetrical deadzone nonlinearity located at the output of a plant. An adaptive inverse function is developed and used in conjunction with a robust adaptive controller to reduce the effect of deadzone nonlinearity. The deadzone inverse function is also implemented in continuous time, and an adaptive update law is designed to estimate the deadzone parameters. The adaptive output deadzone inverse controller is smoothly differentiable and is combined with a robust adaptive nonlinear controller to ensure robustness and boundedness of all the states of the system as well as the output signal. The mismatch between the ideal deadzone inverse function and our proposed implantation is treated as a disturbance that can be upper bounded by a polynomial in the system states. The overall stability of the closed-loop system is proven by using Lyapunov method, and simulations confirm the efficacy of the control methodology.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"215-228"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents performance analysis on hybrid AC/DC microgrid networks for residential home cluster. The design of the proposed microgrid includes comprehensive types of Distributed Generators (DGs) as hybrid power sources (wind, Photovoltaic (PV) solar cell, battery, fuel cell). Details about each DG dynamic modeling are presented and discussed. The customers in home cluster can be connected in both of the operating modes: islanded to the microgrid or connected to utility grid. Each DG has appended control system with its modeling that will be discussed to control DG performance. The wind turbine will be controlled by AC control system within three sub-control systems: 1) speed regulator and pitch control, 2) rotor side converter control, and 3) grid side converter control. The AC control structure is based on PLL, current regulator and voltage booster converter with using of photovoltaic Voltage Source Converter (VSC) and inverters to connect to the grid. The DC control system is mainly based on Maximum Power Point Tracking (MPPT) controller and boost converter connected to the PV array block and in order to control the system. The case study is used to analyze the performance of the proposed microgrid. The buses voltages, active power and reactive power responses are presented in both of grid-connected and islanded modes. In addition, the power factor, Total Harmonic Distortion (THD) and modulation index are calculated.
{"title":"Performance Analysis of Grid Connected and Islanded Modes of AC/DC Microgrid for Residential Home Cluster","authors":"A. Othman, H. Gabbar, N. Honarmand","doi":"10.4236/ICA.2015.64024","DOIUrl":"https://doi.org/10.4236/ICA.2015.64024","url":null,"abstract":"This paper presents \u0000performance analysis on hybrid AC/DC microgrid networks for residential home \u0000cluster. The design of the proposed microgrid includes comprehensive types of \u0000Distributed Generators (DGs) as hybrid power sources (wind, Photovoltaic (PV) \u0000solar cell, battery, fuel cell). Details about each DG dynamic modeling are \u0000presented and discussed. The customers in home cluster can be connected in both \u0000of the operating modes: islanded to the microgrid or connected to utility grid. \u0000Each DG has appended control system with its modeling that will be discussed to \u0000control DG performance. The wind turbine will be controlled by AC control \u0000system within three sub-control systems: 1) speed regulator and pitch control, 2) \u0000rotor side converter control, and 3) grid side converter control. The AC \u0000control structure is based on PLL, current regulator and voltage booster \u0000converter with using of photovoltaic Voltage Source Converter (VSC) and \u0000inverters to connect to the grid. The DC control system is mainly based on \u0000Maximum Power Point Tracking (MPPT) controller and boost converter connected to \u0000the PV array block and in order to control the system. The case study is used \u0000to analyze the performance of the proposed microgrid. The buses voltages, \u0000active power and reactive power responses are presented in both of grid-connected \u0000and islanded modes. In addition, the power factor, Total Harmonic Distortion \u0000(THD) and modulation index are calculated.","PeriodicalId":62904,"journal":{"name":"智能控制与自动化(英文)","volume":"06 1","pages":"249-270"},"PeriodicalIF":0.0,"publicationDate":"2015-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}