Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157747
Hui Zhang, Hongwei Ji, Jingpan Ren, Lin Shan, Yongjun Gao
Photovoltaic generation system is made an overall and systematic introduction from several aspects. In this paper, the attention is devoted to research the maximum power point tracking (MPPT) based on analyze the output character of photovoltaic array, and mainly study the CVT method, increase conductance (IncCond) method, variable step MPPT method, and variable step IncCond method based improved starting characteristic which combine both the advantage of CVT and variable step IncCond method. More importantly, this paper make a detailed analysis about the implementation method of MPPT based two circuit topology, boost circuit and push-pull circuit, and resistance load and battery load of dc-dc circuit are considered particularly. Finally, contrast simulation results by PSIM software indicated that the variable step IncCond method improved starting characteristic method have both fine starting characteristic and tracking effect compare to above methods.
{"title":"Research on MPPT control and implementation method for photovoltaic generation system and its simulation","authors":"Hui Zhang, Hongwei Ji, Jingpan Ren, Lin Shan, Yongjun Gao","doi":"10.1109/IPEMC.2009.5157747","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157747","url":null,"abstract":"Photovoltaic generation system is made an overall and systematic introduction from several aspects. In this paper, the attention is devoted to research the maximum power point tracking (MPPT) based on analyze the output character of photovoltaic array, and mainly study the CVT method, increase conductance (IncCond) method, variable step MPPT method, and variable step IncCond method based improved starting characteristic which combine both the advantage of CVT and variable step IncCond method. More importantly, this paper make a detailed analysis about the implementation method of MPPT based two circuit topology, boost circuit and push-pull circuit, and resistance load and battery load of dc-dc circuit are considered particularly. Finally, contrast simulation results by PSIM software indicated that the variable step IncCond method improved starting characteristic method have both fine starting characteristic and tracking effect compare to above methods.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122003147","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157856
Duan Guangbin, H. Shougen, Zhao Jun, Wang Lijue, Shen Jinggang
The flow distribution property of gas-solid two-phase in Y-Shaped branch pipe was expatiated. The pneumatic conveying experiments for millet and micro-glass bead with density 1340 kg/m3 and 2510kg/m3, average particle diameter 2mm were carried out at horizontal Y-shaped branch pipe which were designed with one branch being unchanged (keeping 15°) and the other being changeable (the angle values are 5°, 10°, 15°, 20°, 25°, 30° respectively ). The flow distribution property was expressed by the ratio of the solid mass flowing in the changeable branch vs. the total mass of solid.
{"title":"Flow distribution property of Y-Shaped branch pipe in gas-solid two-phase flow","authors":"Duan Guangbin, H. Shougen, Zhao Jun, Wang Lijue, Shen Jinggang","doi":"10.1109/IPEMC.2009.5157856","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157856","url":null,"abstract":"The flow distribution property of gas-solid two-phase in Y-Shaped branch pipe was expatiated. The pneumatic conveying experiments for millet and micro-glass bead with density 1340 kg/m<sup>3</sup> and 2510kg/m<sup>3</sup>, average particle diameter 2mm were carried out at horizontal Y-shaped branch pipe which were designed with one branch being unchanged (keeping 15°) and the other being changeable (the angle values are 5°, 10°, 15°, 20°, 25°, 30° respectively ). The flow distribution property was expressed by the ratio of the solid mass flowing in the changeable branch vs. the total mass of solid.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129545666","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157567
Y. J. Wei, H. Qi, W. Wu
The amorphous SiC thick films were successfully fabricated on P-type ≪100≫ oriented silicon substrates at comparatively low temperature via DC magnetron sputtering deposition using a sintered SiC target with different DC power of 80W, 100W, 120W, and 150W. The deposition argon pressure was constantly at 2.0Pa. The as-grown SiC films were characterized by using X-ray diffraction, Atomic Force Microscope (AFM) and profilometer. The low turn-on field of about 3.5V/µm obtained from the field-emission property measurement at an anode-sample separation of 200µm shows that SiC films are competitive candidates for field-emission-based vacuum microelectronic devices.
{"title":"Field emission property of SiC thick film deposited at low temperature by DC magnetron sputtering","authors":"Y. J. Wei, H. Qi, W. Wu","doi":"10.1109/IPEMC.2009.5157567","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157567","url":null,"abstract":"The amorphous SiC thick films were successfully fabricated on P-type ≪100≫ oriented silicon substrates at comparatively low temperature via DC magnetron sputtering deposition using a sintered SiC target with different DC power of 80W, 100W, 120W, and 150W. The deposition argon pressure was constantly at 2.0Pa. The as-grown SiC films were characterized by using X-ray diffraction, Atomic Force Microscope (AFM) and profilometer. The low turn-on field of about 3.5V/µm obtained from the field-emission property measurement at an anode-sample separation of 200µm shows that SiC films are competitive candidates for field-emission-based vacuum microelectronic devices.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128656728","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157427
Jing Li, F. Zhuo, Xianwei Wang, L. Wang, Song Ni
Comparing single-stage grid-connected photovoltaic (PV) system with power quality improvement, in this paper, a high-capacity three-phase four-wire grid-connected PV system based on Boost converter + dual-level four-leg inverter is proposed, which not only allows a wide range of input voltage, but also compensates unbalance current of the local load comparing three-phase three-wire PV system. This paper explains the control principle of each power stage of the system and the unified control strategy of combination of PV grid-connected generation and active filtering in detail, and then the Bode plots of open loop gain for current loop and voltage loop are shown to indicate stability of the unified control according to the system equivalent model. Simulation results on MATLAB/Simulink are presented to demonstrate practicability of the unified control strategy. Applying proposed topology and control method to a 100kVA grid-connected PV system based on FPGA+DSP controller, the experimental results are given to verify correctness of the whole system.
{"title":"A grid-connected PV system with power quality improvement based on boost + dual-level four-leg inverter","authors":"Jing Li, F. Zhuo, Xianwei Wang, L. Wang, Song Ni","doi":"10.1109/IPEMC.2009.5157427","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157427","url":null,"abstract":"Comparing single-stage grid-connected photovoltaic (PV) system with power quality improvement, in this paper, a high-capacity three-phase four-wire grid-connected PV system based on Boost converter + dual-level four-leg inverter is proposed, which not only allows a wide range of input voltage, but also compensates unbalance current of the local load comparing three-phase three-wire PV system. This paper explains the control principle of each power stage of the system and the unified control strategy of combination of PV grid-connected generation and active filtering in detail, and then the Bode plots of open loop gain for current loop and voltage loop are shown to indicate stability of the unified control according to the system equivalent model. Simulation results on MATLAB/Simulink are presented to demonstrate practicability of the unified control strategy. Applying proposed topology and control method to a 100kVA grid-connected PV system based on FPGA+DSP controller, the experimental results are given to verify correctness of the whole system.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124585453","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157683
Y. Osada, R. Sakai, G. Maruyama, K. Matsuse
This paper proposes a 5-level double converter with dividing the DC link voltage in different ratio and new pulse width modulation (PWM) technique. The 5-level double converter has five potentials (P2, P1, NPP, N1, and N2) in the DC link and they can be obtained with splitting the DC link by four capacitors (Fig.1). The NPP potential corresponds to base potential and the value is zero. In the proposed method, the ratio of P2, P1, N1, and N2 potentials is 1:2:2:1 respectively whereas the conventional method is 1:1:1:1 respectively. For a DC link voltage Vdc, P2, P1, NPP, N1, and N2 potentials are Vdc/2, Vdc/3, zero, -Vdc/3, and -Vdc/2 respectively. Otherwise, those of the conventional method are Vdc/2, Vdc/4, zero, -Vdc/4, and -Vdc/2 respectively. In the conventional method, switching signals of the inverter are generated by a space vector modulation (SVM) method. However, this modulation technique is unsuitable for high modulation index region because switching patterns of the region are less than them of the other region. Otherwise in the proposed method, more switching patterns available, and can be reduced the laps of the switching patterns. Concretely, available switching patterns of the proposed method are 97 patterns whereas 61 patterns in the conventional method. Therefore, the harmonic reduction of the output voltage in the high modulation index region can be expected. Switching signals of the 5-level rectifier are generated by instantaneous-value-compared current control method with multi band hysteresis comparators (MHCs) to supply a DC power source for inverter. In case of the proposed method, the ratio of current error and potential axis is divided in the ratio of 1:2:2:1. We confirmed the performance of the 5-level double converter by simulation. Simulation results show that the 5-level potential is stability, input phase currents can be generated sinusoidal waveform, and harmonics reduction of output voltage is possible compared with the conventional method.
{"title":"5-level double converter with different DC divided link voltage","authors":"Y. Osada, R. Sakai, G. Maruyama, K. Matsuse","doi":"10.1109/IPEMC.2009.5157683","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157683","url":null,"abstract":"This paper proposes a 5-level double converter with dividing the DC link voltage in different ratio and new pulse width modulation (PWM) technique. The 5-level double converter has five potentials (P2, P1, NPP, N1, and N2) in the DC link and they can be obtained with splitting the DC link by four capacitors (Fig.1). The NPP potential corresponds to base potential and the value is zero. In the proposed method, the ratio of P2, P1, N1, and N2 potentials is 1:2:2:1 respectively whereas the conventional method is 1:1:1:1 respectively. For a DC link voltage Vdc, P2, P1, NPP, N1, and N2 potentials are Vdc/2, Vdc/3, zero, -Vdc/3, and -Vdc/2 respectively. Otherwise, those of the conventional method are Vdc/2, Vdc/4, zero, -Vdc/4, and -Vdc/2 respectively. In the conventional method, switching signals of the inverter are generated by a space vector modulation (SVM) method. However, this modulation technique is unsuitable for high modulation index region because switching patterns of the region are less than them of the other region. Otherwise in the proposed method, more switching patterns available, and can be reduced the laps of the switching patterns. Concretely, available switching patterns of the proposed method are 97 patterns whereas 61 patterns in the conventional method. Therefore, the harmonic reduction of the output voltage in the high modulation index region can be expected. Switching signals of the 5-level rectifier are generated by instantaneous-value-compared current control method with multi band hysteresis comparators (MHCs) to supply a DC power source for inverter. In case of the proposed method, the ratio of current error and potential axis is divided in the ratio of 1:2:2:1. We confirmed the performance of the 5-level double converter by simulation. Simulation results show that the 5-level potential is stability, input phase currents can be generated sinusoidal waveform, and harmonics reduction of output voltage is possible compared with the conventional method.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124617600","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157751
H. Yong-tai, Wang Lei
In wireless sensor nodes integrated with photoelectric micro-power supply, the efficiency of energy conversion and storage of Photoelectric Micro-power Supply (PMPS) determines their lifetime and adaptability to the environment. Therefore, it is important to improve the efficiency of the energy conversion and storage in the PMPS. However, traditional methods to improve the efficiency of the energy conversion and storage of the photovoltaic power system are not suitable in the PMPS due to the special requirement of wireless sensor nodes in the application. In this study, we propose a novel method to improve the efficiency of energy conversion and storage in the PMPS. In the method, the hybrid energy storage structure composed of super-capacitors and polymer lithium-ion batteries is used. The output power of solar cells is controlled by the circuitry of optimal voltage control. Likewise, Because of high-cycle and high-power density of super-capacitors, they are used as energy buffer. Polymer lithium-ion batteries are used as storage devices based on their high-energy density and low self-discharge rate. Polymer lithium-ion batteries are charged by super-capacitors under control of the circuitry of optimal voltage control. The mode of intermittent charge meets the requirement of rational charge of polymer lithium-ion batteries. Moreover, experiment results show the efficiency energy conversion and storage of the solar cells are improved nearly two times, compared with the method of direct energy storage.
{"title":"A novel method of energy conversion and storage in Photoelectric Micro-power Supply","authors":"H. Yong-tai, Wang Lei","doi":"10.1109/IPEMC.2009.5157751","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157751","url":null,"abstract":"In wireless sensor nodes integrated with photoelectric micro-power supply, the efficiency of energy conversion and storage of Photoelectric Micro-power Supply (PMPS) determines their lifetime and adaptability to the environment. Therefore, it is important to improve the efficiency of the energy conversion and storage in the PMPS. However, traditional methods to improve the efficiency of the energy conversion and storage of the photovoltaic power system are not suitable in the PMPS due to the special requirement of wireless sensor nodes in the application. In this study, we propose a novel method to improve the efficiency of energy conversion and storage in the PMPS. In the method, the hybrid energy storage structure composed of super-capacitors and polymer lithium-ion batteries is used. The output power of solar cells is controlled by the circuitry of optimal voltage control. Likewise, Because of high-cycle and high-power density of super-capacitors, they are used as energy buffer. Polymer lithium-ion batteries are used as storage devices based on their high-energy density and low self-discharge rate. Polymer lithium-ion batteries are charged by super-capacitors under control of the circuitry of optimal voltage control. The mode of intermittent charge meets the requirement of rational charge of polymer lithium-ion batteries. Moreover, experiment results show the efficiency energy conversion and storage of the solar cells are improved nearly two times, compared with the method of direct energy storage.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129649327","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}
It is used to measure common-mode current (CMC) by Holl current transducer and traditional current transformer. In allusion to their limitation, a novel method of measuring CMC based on Rogowski coil is proposed in this paper. Take example for common-mode circuit of five-phase H-bridge three-level inverter, simulation indicates CMC belongs to a typical high frequency pulse current. The model of its equivalent circuit is built and feasibility is validated in theory. The measuring projects of motor with single coil, filter with two coils and filter with single coil are introduced. After compared the three projects, the third project is choosed at last. Finally, Simulation and experimental results verify the validity and feasibility of the novel method proposed in this paper.
{"title":"Common-mode current measurement of high voltage inverter based on Rogowski coil","authors":"Zhu Jun-jie, Zhang Xiao-feng, Qiao Ming-zhong, Shen Zhe","doi":"10.1109/IPEMC.2009.5157645","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157645","url":null,"abstract":"It is used to measure common-mode current (CMC) by Holl current transducer and traditional current transformer. In allusion to their limitation, a novel method of measuring CMC based on Rogowski coil is proposed in this paper. Take example for common-mode circuit of five-phase H-bridge three-level inverter, simulation indicates CMC belongs to a typical high frequency pulse current. The model of its equivalent circuit is built and feasibility is validated in theory. The measuring projects of motor with single coil, filter with two coils and filter with single coil are introduced. After compared the three projects, the third project is choosed at last. Finally, Simulation and experimental results verify the validity and feasibility of the novel method proposed in this paper.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129110839","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157704
Zhang Jian, W. Xuhui, Zeng Lili
Electric Vehicles (EVs) develop rapidly with the concerns of gas emission and energy crisis. Electric Motors, those are used for EV propulsion must have high efficiency for maximum utilization of the energy from batteries and/or fuel cells. This paper aims to address how to achieve the optimal system efficiency of multi-motor drive system, which has not been addressed previously. Based on the measurement or estimation of the real-time load condition and the efficiency optimization strategy, Digital signal processor (DSP) coordinates the work between the two motors and setts reasonable working mode of the inverter, and then improves the overall efficiency of the propulsion system notably. Fault-tolerant strategy base on the master-slave motor concept is also discussed to ensure the reliability of the system both under health and various faulty conditions. The paper presents the details of the experimental setup and measurement for the improvement of the system efficiency. Data obtained from this study will provide the preliminary understanding on how to achieve the optimal efficiency of multi-motor drive system.
{"title":"Optimal system efficiency operation of dual PMSM motor drive for fuel cell vehicles propulsion","authors":"Zhang Jian, W. Xuhui, Zeng Lili","doi":"10.1109/IPEMC.2009.5157704","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157704","url":null,"abstract":"Electric Vehicles (EVs) develop rapidly with the concerns of gas emission and energy crisis. Electric Motors, those are used for EV propulsion must have high efficiency for maximum utilization of the energy from batteries and/or fuel cells. This paper aims to address how to achieve the optimal system efficiency of multi-motor drive system, which has not been addressed previously. Based on the measurement or estimation of the real-time load condition and the efficiency optimization strategy, Digital signal processor (DSP) coordinates the work between the two motors and setts reasonable working mode of the inverter, and then improves the overall efficiency of the propulsion system notably. Fault-tolerant strategy base on the master-slave motor concept is also discussed to ensure the reliability of the system both under health and various faulty conditions. The paper presents the details of the experimental setup and measurement for the improvement of the system efficiency. Data obtained from this study will provide the preliminary understanding on how to achieve the optimal efficiency of multi-motor drive system.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116499315","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157693
He Feng-you, Gu Shan-mao, Cao Hai-yang, Z. Hui
Mechanic position transducer will bring a lot of disadvantages in permanent magnet synchronous motor drive system. In this paper, a method to observer rotor position which is based on high frequency signal injection and stator flux observation is presented. The carrier signal is injected in the stator, and the rotor position error signal is extracted from the carrier current with saliency tracking for low-speed. Then it is processed by phase-lock-loop, which yields position estimations. A novel stator flux observer with variable structure uses a combined voltage-current model with PI compensator for low-speed operations. As speed increases, the observer switches gradually to a PI compensated closed-loop voltage model, which is solely used at high speeds. A new rotor speed estimator for the whole speed-loop range, based on the stator flux speed estimation with a new dynamic correction depending on estimated torque, is proposed. The Extensive simulation and experimental results provided good performance for salient-pole PMSM sensorless system.
{"title":"Wide speed-loop range tuning technology for sensorless control of PMSM based on signal injection and stator flux observer","authors":"He Feng-you, Gu Shan-mao, Cao Hai-yang, Z. Hui","doi":"10.1109/IPEMC.2009.5157693","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157693","url":null,"abstract":"Mechanic position transducer will bring a lot of disadvantages in permanent magnet synchronous motor drive system. In this paper, a method to observer rotor position which is based on high frequency signal injection and stator flux observation is presented. The carrier signal is injected in the stator, and the rotor position error signal is extracted from the carrier current with saliency tracking for low-speed. Then it is processed by phase-lock-loop, which yields position estimations. A novel stator flux observer with variable structure uses a combined voltage-current model with PI compensator for low-speed operations. As speed increases, the observer switches gradually to a PI compensated closed-loop voltage model, which is solely used at high speeds. A new rotor speed estimator for the whole speed-loop range, based on the stator flux speed estimation with a new dynamic correction depending on estimated torque, is proposed. The Extensive simulation and experimental results provided good performance for salient-pole PMSM sensorless system.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114809660","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}
Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157726
Y. Fu, Weiwei Zhang
The performances of the airborne actuator directly affect the qualities of the flying machine. The coordinated control actuator system of the motor-pump-valve parallel connection has predominant characteristics comparing with other actuator systems of coordinated control. The motor-pump-valve actuator system is a combinational optimization problem of coordinated control, for the system has three adjustable parameters: the speed of motor, the rotation angle of the pump swashplate and the opening degree of the valve. It was investigated that the optimum weight number distribution is implemented between the speed of the motor and the rotation angle of the pump swashplate and the opening degree of the valve by applying the combination of the improved swarm intelligence Algorithms and the proportional control. The applied swarm intelligence algorithms include Ant Colony Optimization (ACO) and Bee Colony Optimization (BCO). The ant colony and the bee colony are able to self-organize, and ACO Algorithm and BCO Algorithm are optimization algorithms based on intelligent behavior of ants swarm and bees swarm. The Bee colony and the ant colony systems are highly flexible and fault tolerant in their foraging behavior. The validity of the combination of two improved algorithms and proportional control has been confirmed by simulation. Comparing with the simulation results, the improved algorithms have obvious advantages, and the total performance of the improved BCO Algorithm is much better than the one of the improved ACO algorithm.
{"title":"Swarm intelligence Algorithms for coordinated control of the motor-pump-valve actuator system","authors":"Y. Fu, Weiwei Zhang","doi":"10.1109/IPEMC.2009.5157726","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157726","url":null,"abstract":"The performances of the airborne actuator directly affect the qualities of the flying machine. The coordinated control actuator system of the motor-pump-valve parallel connection has predominant characteristics comparing with other actuator systems of coordinated control. The motor-pump-valve actuator system is a combinational optimization problem of coordinated control, for the system has three adjustable parameters: the speed of motor, the rotation angle of the pump swashplate and the opening degree of the valve. It was investigated that the optimum weight number distribution is implemented between the speed of the motor and the rotation angle of the pump swashplate and the opening degree of the valve by applying the combination of the improved swarm intelligence Algorithms and the proportional control. The applied swarm intelligence algorithms include Ant Colony Optimization (ACO) and Bee Colony Optimization (BCO). The ant colony and the bee colony are able to self-organize, and ACO Algorithm and BCO Algorithm are optimization algorithms based on intelligent behavior of ants swarm and bees swarm. The Bee colony and the ant colony systems are highly flexible and fault tolerant in their foraging behavior. The validity of the combination of two improved algorithms and proportional control has been confirmed by simulation. Comparing with the simulation results, the improved algorithms have obvious advantages, and the total performance of the improved BCO Algorithm is much better than the one of the improved ACO algorithm.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124323257","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}
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