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LIN Xin,GAO Xiang,XIE Zhen,XU Kebao,ZHANG Xing
Abstract: With the increasing proportion of wind turbines,the characteristics of low inertia and weak dampingpower grid become more obvious,which brings new challenges to the smooth operation of power grid. Traditionalcurrent-controlled strategy is difficult to obtain accurate grid synchronization information in wea...
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Number of views:4369 Amount of downloads:7302
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CHEN Zhong,WU Yongkang,JIANG Yang,WU Fuchao
Abstract:An optimization control strategy based BPA for doubly fed wind turbines under asymmetric faultridethrough was proposed to address the issue of low accuracy of control strategies under asymmetric faults,inorder to obtain more accurate fault control model parameters for doubly fed wind turbines under asymmetr...
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Number of views:1332 Amount of downloads:7296
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LAI Yongbo,LU Jun,LI Huarong
Abstract: To deal with the mould quantitative casting over-pouring and spillage,based on the analysis of thetechnological process and the control characteristics for a kind of auto molten bucket casting mechanism,under the condition without depending on system concrete models,a three stages casting was proposed to r...
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Number of views:2706 Amount of downloads:7281
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HUANG Xinbing,DENG Xinglong,LIU Xiaojuan
Abstract: Aiming at the problems of low production efficiency,poor consistency of appearance and high laborintensity in the manual way of packaging tin box sleeve film for bagging drinks and tea,a kind of automaticequipment for multi-tin box supporting sleeve film was proposed,which integrated application of program...
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Number of views:1937 Amount of downloads:7241
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LI Xinhai,FAN Dehe,MENG Chenxu,ZENG Lingcheng,YUANTuolai
Abstract: Due to various environmental factors,the relay platen status recognition needs manual inspection fora long time,and the current popular platen image recognition program requires a huge background computingarchitecture,which can not immediately obtain the verification information in the operation site,and s...
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Number of views:2037 Amount of downloads:7240
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LIU Xin,WEI Lixin,ZHANG Feng
Abstract:In addressing the issue of the electrical drive system of oil drilling rigs encountering instability inactuator output due to interference from multi-source random noise,a novel approach was proposed. The Fractaltheory was utilized to isolate random noise in the drilling rig electrical control system. The p...
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Number of views:1479 Amount of downloads:7226
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WANG Zhifu,SUN Qingle,LI Haolong,WANG Xu,GUO Yifeng,LIANG Changchun,WANG Rui
Abstract: With the development of motor drive system of new energy vehicle and the increase in complexity and integration,testing of motor drive system has become an important part of vehicle development. But high-power motor drive testing is more difficult and has higher risks,especially for motor control system,tr...
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Number of views:6193 Amount of downloads:7208
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WANG Yuning,YANG Chengshun,HUANG Xiaoning
Abstract:In response to the poor disturbance rejection performance and issues of parameter perturbation andcontrol precision in traditional control strategies for interior permanent magnet synchronous motors (IPMSM),afuzzy sliding mode control strategy based on the super-twisting disturbance observer was proposed. T...
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Number of views:2175 Amount of downloads:7186
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GUO Yanhui,LI Hao,LUO Min,CHEN Jie
Abstract:In power electronic devices,the supporting capacitor is a crucial component. To ensure the safety ofthe system,monitoring the status of the capacitor is particularly important. A neural network approach wasemployed,and analyzing the correlation between control strategies and circuit topology parameters to d...
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Number of views:1596 Amount of downloads:7152
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CHEN Weikang,WANG Haixin,ZHANG Zhiyong,CHEN Zhenyu,SHEN Jie
Abstract:Flux-weakening control technology can effectively broaden the speed range of the permanentmagnet synchronous machine(PMSM),therefore,it is of great significance to the research on the flux-weakening control of permanent magnet synchronous machine. Most of flux-weakening modified the flux-weakening current c...
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Number of views:2521 Amount of downloads:7138
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LIU Juan,HU Xiaolei,TENG Yiyina,ZHANG Shiqi,ZHANG Zhe
Abstract: Hydrogen fuel cells air compressor is an important accessory of hydrogen fuel cell,but the high costcaused by its high energy consumption hinders the further development of hydrogen fuel cell. In recent years,theindustry has gradually adopted variable frequency drives to control the operation of hydrogen f...
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Number of views:2631 Amount of downloads:7124
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HE Yongpeng,WANG Mingyue,WANG Yubo,WANG Chunhui,ZHAO Zesheng
Abstract:Based on the parallel structure of high-power converter system,a high real-time and highsynchronization optical-fiber communication scheme was proposed. The on-fly transmission ensures that thecommunication between the controllers has a low delay,and the clock synchronization algorithm compensates thetime-d...
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Number of views:1910 Amount of downloads:7093
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ZHU Changlin,TU Qunzhang,JIANG Chengming,WANG Shijiao
Abstract:The synchronization accuracy of a multi-motor speed synchronization system is influenced by themotor control algorithm and synchronization control strategy. In response to the shortcomings of existing controlstrategies,a mid-range deviation coupling control strategy for multi-motor speed synchronization sys...
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Number of views:2109 Amount of downloads:7078
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OU Zhixin,LI Jixia,DENG Chunlan
Abstract: The reliability and stability of electric energy transmission in the power grid are the guarantee ofdriving safety,due to the impact of external interference fluctuations and current arcs on the power grid structure,its parameter acquisition and dynamic modeling become difficult. Firstly,the characteristic...
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Number of views:2186 Amount of downloads:7074
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LIU Naisuo,ZHANG Xingang,MA Lei,CHEN Xiuqin,YAO Hailong,MA Songyuan
Abstract: The reform project of a test bench is mainly used for the test of main reducing tension bearing,and the test instrument is equipped with the function of applying load and speed. During the trial,the traditional single closedloop control can not meet the test requirements. In order to complete the experimen...
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Number of views:3110 Amount of downloads:7047