Pub Date : 2016-07-14DOI: 10.1109/IPEMC.2016.7512735
Junjun Zhang, Fei Zheng, Xiaolin Zhang, Jingsheng Huang, Weihua Wang, Fei Gao, W. Tan
With increasing penetration of solar energies into power grids, the capability of low voltage ride through (LVRT) becomes a critical requirement for the grid-connected solar energy converters. As a result, many utility authorities have put up new codes and regulations to test the LVRT capability, while the converter manufacturers and the certification institutes have developed various test benches for the LVRT tests. Unlike those traditional test benches using physical devices, the Hardware-in-the-loop (HIL) platform offers much more flexibility and safer test environment, since electric grid and apparatus are digitally emulated on a real-time simulator (RTS). However, the RTS must feature an advanced solver, a fast processor and ultra-low latency to ensure the high fidelity of a simulation. This paper presents the configuration of a flexible test bench to test the LVRT capability of solar energy converters using the FPGA-based RTS. Besides flexibility, the accuracy of the RTS was demonstrated by comparing the real-time simulation result with the reference given by an offline simulation.
{"title":"The setup of a flexible test bench for the low-voltage-ride-through capability of solar energy converter","authors":"Junjun Zhang, Fei Zheng, Xiaolin Zhang, Jingsheng Huang, Weihua Wang, Fei Gao, W. Tan","doi":"10.1109/IPEMC.2016.7512735","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512735","url":null,"abstract":"With increasing penetration of solar energies into power grids, the capability of low voltage ride through (LVRT) becomes a critical requirement for the grid-connected solar energy converters. As a result, many utility authorities have put up new codes and regulations to test the LVRT capability, while the converter manufacturers and the certification institutes have developed various test benches for the LVRT tests. Unlike those traditional test benches using physical devices, the Hardware-in-the-loop (HIL) platform offers much more flexibility and safer test environment, since electric grid and apparatus are digitally emulated on a real-time simulator (RTS). However, the RTS must feature an advanced solver, a fast processor and ultra-low latency to ensure the high fidelity of a simulation. This paper presents the configuration of a flexible test bench to test the LVRT capability of solar energy converters using the FPGA-based RTS. Besides flexibility, the accuracy of the RTS was demonstrated by comparing the real-time simulation result with the reference given by an offline simulation.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"22 1","pages":"2765-2769"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82611498","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512725
Meng Zhang, Y. Xing, Hongfei Wu, Yangjun Lu, K. Sun
A pulse width modulation (PWM) plus phase-shift controlled (PPS) non-isolated bidirectional three-port converter (TPC) is analyzed for energy storage power system to interface multiple energy sources, storage devices and regulated voltage bus. A staked dual half-bridge converter (DHB) is integrated into a non-isolated bidirectional buck/boost converter to achieve the bidirectional power transmission between any two of the three ports. With the shared switching bridge in the low voltage side, the number of active switches is reduced. Thanks to the integration structure, low voltage stress on the active switches and high voltage conversion ratio will be achieved. PPS control strategy is employed to provide two control freedoms and single-stage power conversion between any two of the three ports is achieved. What's more, with PPS control scheme, wide range voltage/power regulation and soft-switching of all the low-voltage and high-voltage side active switches can be realized. Operational principles, control strategy and characteristics of the analyzed converter are presented. Experiments of a 1-kW prototype have been carried out to verify the feasibility and effectiveness of the converter.
{"title":"Performance evaluation of a non-isolated bidirectional three-port power converter for energy storage applications","authors":"Meng Zhang, Y. Xing, Hongfei Wu, Yangjun Lu, K. Sun","doi":"10.1109/IPEMC.2016.7512725","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512725","url":null,"abstract":"A pulse width modulation (PWM) plus phase-shift controlled (PPS) non-isolated bidirectional three-port converter (TPC) is analyzed for energy storage power system to interface multiple energy sources, storage devices and regulated voltage bus. A staked dual half-bridge converter (DHB) is integrated into a non-isolated bidirectional buck/boost converter to achieve the bidirectional power transmission between any two of the three ports. With the shared switching bridge in the low voltage side, the number of active switches is reduced. Thanks to the integration structure, low voltage stress on the active switches and high voltage conversion ratio will be achieved. PPS control strategy is employed to provide two control freedoms and single-stage power conversion between any two of the three ports is achieved. What's more, with PPS control scheme, wide range voltage/power regulation and soft-switching of all the low-voltage and high-voltage side active switches can be realized. Operational principles, control strategy and characteristics of the analyzed converter are presented. Experiments of a 1-kW prototype have been carried out to verify the feasibility and effectiveness of the converter.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"49 1","pages":"2703-2708"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76467325","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512738
G. Tibola, E. Lemmen, J. Duarte
Isolated converter such as SEPIC has a high voltage stress in the main switch due to transformer leakage inductance. To solve this issue an active or passive clamp action is necessary. The common passive solution based on a RCD snubber is simple but impractical when the value of the leakage inductance is significant. In other hands, passive regenerative solutions generally compromise the isolation, making the search for a suitable snubber a challenge. In this paper, an effective passive regenerative snubber cell for isolated DCM SEPIC converters is presented. It is intended to improve the converter efficiency by transferring the energy stored in the transformer leakage inductance to the output. Analysis is presented in detail together with a practical design procedure. To validate the proposal, simulated and experimental results are performed for a 100 W, 100 V input and 50 V output voltage converter.
{"title":"Passive regenerative snubber cell applied to isolated DCM SEPIC converter","authors":"G. Tibola, E. Lemmen, J. Duarte","doi":"10.1109/IPEMC.2016.7512738","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512738","url":null,"abstract":"Isolated converter such as SEPIC has a high voltage stress in the main switch due to transformer leakage inductance. To solve this issue an active or passive clamp action is necessary. The common passive solution based on a RCD snubber is simple but impractical when the value of the leakage inductance is significant. In other hands, passive regenerative solutions generally compromise the isolation, making the search for a suitable snubber a challenge. In this paper, an effective passive regenerative snubber cell for isolated DCM SEPIC converters is presented. It is intended to improve the converter efficiency by transferring the energy stored in the transformer leakage inductance to the output. Analysis is presented in detail together with a practical design procedure. To validate the proposal, simulated and experimental results are performed for a 100 W, 100 V input and 50 V output voltage converter.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"1 1","pages":"2779-2786"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74001106","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}
State variable feedback predictive control (SVFPC) obtains the advantage of predictive control and state feedback control, which is proposed to control the single phase shunt active power filter (SAPF) in nonlinear load (uncontrolled rectifier with inductive and capacitive load) conditions. The proposed control strategy suppresses most harmonics of different loads. The advantages of using SVFPC compared to conventional proportional-integral (PI) control are more accurate, strong robustness and small overshoot. Moreover, the adaptability of step-change disturbance of SAPF is improved. To verify the proposed control strategy, the simulation by MATLAB/Simulink is implemented to test the feasibility.
{"title":"State variable feedback predictive control design for single phase shunt active power filter","authors":"Yong Xu, Jiaqi Yu, Yijia Cao, Jingrong Yu, Ying Gu","doi":"10.1109/IPEMC.2016.7512610","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512610","url":null,"abstract":"State variable feedback predictive control (SVFPC) obtains the advantage of predictive control and state feedback control, which is proposed to control the single phase shunt active power filter (SAPF) in nonlinear load (uncontrolled rectifier with inductive and capacitive load) conditions. The proposed control strategy suppresses most harmonics of different loads. The advantages of using SVFPC compared to conventional proportional-integral (PI) control are more accurate, strong robustness and small overshoot. Moreover, the adaptability of step-change disturbance of SAPF is improved. To verify the proposed control strategy, the simulation by MATLAB/Simulink is implemented to test the feasibility.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"72 1","pages":"2043-2046"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83947697","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512565
A. Luna, N. Díaz, M. Savaghebi, J. Vasquez, J. Guerrero
A microgrid is a system that integrates energy generation, energy storage, and loads and it is able to operate either in interconnected or islanded mode. Energy resources should be scheduled to supply the load properly in order to coordinate optimally the power exchange within the microgrid according to a defined objective function. In this paper, an optimal power scheduling for generation and demand side is presented to manage an islanded hybrid PV-wind-battery microgrid implemented in Shanghai-China. The optimization is addressed through a Mixed-Integer Linear Programming (MILP) mathematical model, wherein the disconnection of the load and not charging the battery when there is surplus of energy are penalized while physical constraints and requirements for a feasible deployment in the real system are considered. The proposed scheduling scheme is tested using a real-time control platform (dSPACE1006) in which a scaled down model of this microgrid is emulated.
{"title":"Optimal power scheduling for an islanded hybrid microgrid","authors":"A. Luna, N. Díaz, M. Savaghebi, J. Vasquez, J. Guerrero","doi":"10.1109/IPEMC.2016.7512565","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512565","url":null,"abstract":"A microgrid is a system that integrates energy generation, energy storage, and loads and it is able to operate either in interconnected or islanded mode. Energy resources should be scheduled to supply the load properly in order to coordinate optimally the power exchange within the microgrid according to a defined objective function. In this paper, an optimal power scheduling for generation and demand side is presented to manage an islanded hybrid PV-wind-battery microgrid implemented in Shanghai-China. The optimization is addressed through a Mixed-Integer Linear Programming (MILP) mathematical model, wherein the disconnection of the load and not charging the battery when there is surplus of energy are penalized while physical constraints and requirements for a feasible deployment in the real system are considered. The proposed scheduling scheme is tested using a real-time control platform (dSPACE1006) in which a scaled down model of this microgrid is emulated.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"19 1","pages":"1787-1792"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74860185","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 : 2016-07-14DOI: 10.1109/IPEMC.2016.7512493
Yao He, Xuan-yang Liu, Xintian Liu, Xinxin Zheng, Liu Su
Series battery equalization can improve battery charge and discharge reliability and extend battery life. It requires a higher requirement in battery management system (BMS). This paper introduces the high speed inductor-based battery equalization schemes. It can realize energy transfer between the cells and batteries by charging and discharging of the inductors. Thus the equalization time can be improved. Finally the simulation and experimental results verify the theoretical analysis.
{"title":"Research on the high speed inductor-based active battery equalization schemes","authors":"Yao He, Xuan-yang Liu, Xintian Liu, Xinxin Zheng, Liu Su","doi":"10.1109/IPEMC.2016.7512493","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512493","url":null,"abstract":"Series battery equalization can improve battery charge and discharge reliability and extend battery life. It requires a higher requirement in battery management system (BMS). This paper introduces the high speed inductor-based battery equalization schemes. It can realize energy transfer between the cells and batteries by charging and discharging of the inductors. Thus the equalization time can be improved. Finally the simulation and experimental results verify the theoretical analysis.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"290 1","pages":"1389-1393"},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77502953","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 : 2016-05-22DOI: 10.1109/IPEMC.2016.7512660
Fusheng Wang, Yunliang Teng, Z. Yuan, Jiayi Xu
Three-level Vienna Rectifier is one of the most popular topologies for three-phase PFC converter which is used in many applications such as telecommunication and wind turbine systems. However, the current distortion resulted from the existence of filter inductor at current zero-crossing point deteriorates the grid current. The traditional injection of zero-sequence component (IZSC) doesn't work well when the modulation index exceeds a certain value. This paper first analyses the mechanism of the current zero-crossing distortion and the application scope of the IZSC, and proposes a novel method which combines the IZSC with the compensation of lagging reactive power. Compared with the IZSC, this approach overcomes the limited application of the modulation index and ensures three-phase current without zero crossing distortion. It also guarantees minimum compensation of reactive power, that is, Vienna Rectifier can achieve the maximum power factor. Simultaneously, this method is extremely simple to be realized by carrier modulation. Finally, the simulation results show the feasibility and effectiveness of the theoretical analysis.
{"title":"A maximum power factor of control algorithms of three-level Vienna Rectifier without current distortion at current zero-crossing point","authors":"Fusheng Wang, Yunliang Teng, Z. Yuan, Jiayi Xu","doi":"10.1109/IPEMC.2016.7512660","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512660","url":null,"abstract":"Three-level Vienna Rectifier is one of the most popular topologies for three-phase PFC converter which is used in many applications such as telecommunication and wind turbine systems. However, the current distortion resulted from the existence of filter inductor at current zero-crossing point deteriorates the grid current. The traditional injection of zero-sequence component (IZSC) doesn't work well when the modulation index exceeds a certain value. This paper first analyses the mechanism of the current zero-crossing distortion and the application scope of the IZSC, and proposes a novel method which combines the IZSC with the compensation of lagging reactive power. Compared with the IZSC, this approach overcomes the limited application of the modulation index and ensures three-phase current without zero crossing distortion. It also guarantees minimum compensation of reactive power, that is, Vienna Rectifier can achieve the maximum power factor. Simultaneously, this method is extremely simple to be realized by carrier modulation. Finally, the simulation results show the feasibility and effectiveness of the theoretical analysis.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"67 1","pages":"2325-2331"},"PeriodicalIF":0.0,"publicationDate":"2016-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73753740","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 : 2016-05-22DOI: 10.1109/IPEMC.2016.7512353
Jian Liu, W. Yao, Zheng-yu Lu, Xiaoyi Xu
Nowadays power electronic DC/AC inverters are widely used in energy conversion and motor control application. Higher-frequency SPWM (Sinusoidal Pulse Width Modulation) waves can decrease the size of passive component in the inverter, achieving a low volume and a lightweight as needed. This paper presents a DSP based SPWM generator, which can operate at switching frequencies up to 1 MHz, thus it can meet the high switching frequency demands of modern DC/AC inverters. The proposed design is based on the HRPWM (High Resolution Pulse Width Modulation) block which is available in the TI DSP, and it is verified using the TMS320F28335 controller and a DC/AC power inverter prototype. The experimental results confirm that this SPWM generator achieves much faster switching frequency, less harmonic interference, and higher resolution of SPWM waveforms, showing a better performance compared to past design.
{"title":"Design and implementation of DSP based high-frequency SPWM generator","authors":"Jian Liu, W. Yao, Zheng-yu Lu, Xiaoyi Xu","doi":"10.1109/IPEMC.2016.7512353","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512353","url":null,"abstract":"Nowadays power electronic DC/AC inverters are widely used in energy conversion and motor control application. Higher-frequency SPWM (Sinusoidal Pulse Width Modulation) waves can decrease the size of passive component in the inverter, achieving a low volume and a lightweight as needed. This paper presents a DSP based SPWM generator, which can operate at switching frequencies up to 1 MHz, thus it can meet the high switching frequency demands of modern DC/AC inverters. The proposed design is based on the HRPWM (High Resolution Pulse Width Modulation) block which is available in the TI DSP, and it is verified using the TMS320F28335 controller and a DC/AC power inverter prototype. The experimental results confirm that this SPWM generator achieves much faster switching frequency, less harmonic interference, and higher resolution of SPWM waveforms, showing a better performance compared to past design.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"71 1","pages":"597-602"},"PeriodicalIF":0.0,"publicationDate":"2016-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73891788","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 : 2016-05-22DOI: 10.1109/IPEMC.2016.7512263
Xiao-Dong Liu, Qingqing Li, Sucheng Liu, Wei Fang
A weighted controller structure for DC-DC converters is proposed to deal with large-signal operations. For wide range variations of input voltage and load conditions of DC-DC converters, we firstly divide the pre-defined global operation space into local subspaces where each local linear compensator is designed for the corresponding subspace, and then all the local linear compensators are weighted into single controller structure. By doing so, the weighted controller can automatically decide which local linear compensator regulates the dynamics of DC-DC converter according to the operation conditions, and thus has the capability of self-adaptation to wide range of operating point variations. Furthermore, the prominent feature underlying the weighted control scheme is also that the nonlinearities of DC-DC converters is easily to be handled by linear compensation approaches that can be easily implemented with analog or digital control circuitries. To demonstrate the effectiveness of this controller structure, a stand-alone DC-DC converter and a cascaded DC-DC converter system are taken as examples by simulation and experimental results.
{"title":"Weighted controller structure of DC-DC converters for adaptive regulation to large-signal operations","authors":"Xiao-Dong Liu, Qingqing Li, Sucheng Liu, Wei Fang","doi":"10.1109/IPEMC.2016.7512263","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512263","url":null,"abstract":"A weighted controller structure for DC-DC converters is proposed to deal with large-signal operations. For wide range variations of input voltage and load conditions of DC-DC converters, we firstly divide the pre-defined global operation space into local subspaces where each local linear compensator is designed for the corresponding subspace, and then all the local linear compensators are weighted into single controller structure. By doing so, the weighted controller can automatically decide which local linear compensator regulates the dynamics of DC-DC converter according to the operation conditions, and thus has the capability of self-adaptation to wide range of operating point variations. Furthermore, the prominent feature underlying the weighted control scheme is also that the nonlinearities of DC-DC converters is easily to be handled by linear compensation approaches that can be easily implemented with analog or digital control circuitries. To demonstrate the effectiveness of this controller structure, a stand-alone DC-DC converter and a cascaded DC-DC converter system are taken as examples by simulation and experimental results.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"2014 1","pages":"64-69"},"PeriodicalIF":0.0,"publicationDate":"2016-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73891795","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 : 2016-05-22DOI: 10.1109/IPEMC.2016.7512399
Tianheng Ni, Bo Zhou, Bing Liu, Long Wang
This paper focuses on the improvement of pulsating current injection based sensorless control of surface-mounted permanent-magnet synchronous motors (SPMSM). Conventional practice applies band pass and low pass filters to track the position information. However, since filtering effect of low order filter is not ideal, the high order filter is generally used to process the position signal. But this would introduce a certain delay and increase the calculation burden. To solve this problem, a novel position observer is proposed which achieves ideal filtering effect and reduces the computation burden of the system. The experimental results based on RT-LAB platform verify the feasibility of the designed observer.
{"title":"A novel position observer for SPMSM sensorless control at low speed without using filters","authors":"Tianheng Ni, Bo Zhou, Bing Liu, Long Wang","doi":"10.1109/IPEMC.2016.7512399","DOIUrl":"https://doi.org/10.1109/IPEMC.2016.7512399","url":null,"abstract":"This paper focuses on the improvement of pulsating current injection based sensorless control of surface-mounted permanent-magnet synchronous motors (SPMSM). Conventional practice applies band pass and low pass filters to track the position information. However, since filtering effect of low order filter is not ideal, the high order filter is generally used to process the position signal. But this would introduce a certain delay and increase the calculation burden. To solve this problem, a novel position observer is proposed which achieves ideal filtering effect and reduces the computation burden of the system. The experimental results based on RT-LAB platform verify the feasibility of the designed observer.","PeriodicalId":6857,"journal":{"name":"2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)","volume":"63 1","pages":"863-867"},"PeriodicalIF":0.0,"publicationDate":"2016-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73940006","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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