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GU Ming，XING Meng，GE Xianjun
Abstract: Aiming at the complex problem of weight factors tuning when the induction motor driving systemadopts the finite set model predictive control，an optimal finite set model predictive controller without weightdistribution for induction motor driving system was designed. In the new scheme，the form of sequential...
更多Number of views：4529 Amount of downloads：3895
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PAN Ling，FENG Qian，ZHANG Peng，SHEN Bing，ZHOU Jian，CHEN Ran，ZHAO Jinshuai
Abstract: Due to the high cable ratio of city grid，the harmonic pollution is aggravated. For the buses with high harmonic voltage content，it is necessary to evaluate the harmonic emission level of the utility side and customer side. Most of the existing evaluation methods are based on two assumptions：1）the harmonic ...
更多Number of views：4743 Amount of downloads：3893
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ZOU Yingdong，WANG Fengjun，ZHOU Yu
Abstract：This research focused on the separation and calculation of electromagnetic losses in semi-directdrived permanent magnet wind generators（SDDPMWG）. Firstly，analytical method for calculating core loss ofmotor considering harmonic current was derived based on the Bertotti method. The eddy current loss of perman...
更多Number of views：1448 Amount of downloads：3885
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CAI Chunchen，MAO Xuefei，ZHAO Lei，CHEN Zhen，LI Zhen
Abstract: Aiming at the problems that the working efficiency of ultrasonic motor is too low，which limits theworking endurance of the system and affects the resonant and dynamic characteristics of the motor，a speed andefficiency optimization bivariate control method under dynamic conditions was designed. First，the tw...
更多Number of views：3719 Amount of downloads：3885
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CHEN Hu，WANG Yangyang，PAN Yuedou
Abstract: In order to overcome the drawback of direct torque control of induction motor which has largetorque ripples at low speed，a generalized predictive control method was proposed and be used in the direct torque control of induction motor. The method was directly used in speed control，and didn' t depend on ...
更多Number of views：4623 Amount of downloads：3876
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FAN Zhenning，SU Qiang，ZHANG Xinmin，ZHAO Changwei，XU Ke
Abstract: The control strategy of flexible multi-state switch（FMS）is a key technical challenge to ensure its highefficiency，reliability and flexibility. In order to solve the problems that the parameter design of proportional resonant （PR）controller is complicated and is greatly affected by grid frequency disturbanc...
更多Number of views：4222 Amount of downloads：3875
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WANG Baihuai，WUTong，ZHANGWeizheng，FANG Xuezhen，LIYingzhi
Abstract: In order to enhance the stability of power grid operation and improve power supply capacity of powergrid，a power supply capacity simulation method based on harmonic reactive compensation was proposed. Theharmonic data in the power network equipment was calculated through DIgSILENT/PowerFactory software，inc...
更多Number of views：4378 Amount of downloads：3851
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LI Wei，LUO Cheng，YANG Kai，WANG Xuming，QIU Lingfeng，HUANG Yuhao
Abstract：When the permanent magnet assisted synchronous reluctance motor（PMaSynRM）runs at highspeed with flux-weakening control，the DC bus voltage utilization is not high，and the efficiency and torque output capacity of the motor are low. Therefore，a flux-weakening control strategy of permanent magnet assistedsynchr...
更多Number of views：2005 Amount of downloads：3849
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TANG Jiayuan，ZHAO Wenbin，LU Wu，GAO Yuan
Abstract: Under the electric power market environment，the key to achieve the joint operation of virtual powerplants lies in the profit distribution among the internal multi-subjects. To solve the impact of the final profitdistribution，which is caused by the uncertainty of the clean energy output of each main body in...
更多Number of views：4299 Amount of downloads：3849
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ZHOU Zhen，PENG Yuanxiu，LIU Bin，LI Xiaowen，ZHA Haitao
Abstract: In the isolated island operation mode of microgrid，the output power of distributed generation unitsin the system is difficult to distribute reasonably due to the difference of output line impedance，which affects thestability of the system. In order to realize the reasonable distribution of power according ...
更多Number of views：3921 Amount of downloads：3841
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LÜ Feichun，HU Jingtao，ZHANG Wentao，HU Dong，WU Xu
Abstract: In recent years，the large-scale grid connected operation of distributed energy has led to the gradualevolution of traditional power users from simple power consumers to prosumers with both power production andconsumption capacity，and can orderly participate in market transactions under the guidance of mark...
更多Number of views：2667 Amount of downloads：3839
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ZHANG Guoqiang，LI Rundong，HUANG Yuanming，DING Dawei，WANG Gaolin，XU Dianguo
Abstract: Supply interruption may occur during the operation of permanent magnet synchronous motor（PMSM）in some special applications and it needs to be restarted in the rotating state which is called flying start，the accurate initial position/speed observation is the foundation of flying start. Aiming at the problem...
更多Number of views：2205 Amount of downloads：3834
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LI Haifeng，CHEN Bin，CHEN Jin，HU Xiwen，LIU Youbin
Abstract：Line commutated capacitor high-voltage direct current（ LCC-HVDC）is an important technicalform of high-voltage direct current transmission. Since the converter valve was composed of semi-controlled devicethyristors，the commutation failure of the inverter-side converter station has become a key issue affectin...
更多Number of views：853 Amount of downloads：3833
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JIANG Zhaoping，LIYue，LIUMingkai，ZHEN Dongfang，HOU Xinxu，WANGTong
Abstract: In order to ensure the efficient and stable operation of high-temperature submersible motors，and totimely avoid motor failures caused by high operating temperatures，which may affect production，it is necessary toobtain their underground temperature without temperature sensors. Based on this situation，a temp...
更多Number of views：1580 Amount of downloads：3822
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ZHANG Mao，CHENG Wenming，QIN Qin
Abstract: A set of container positioning system based on the laser radar measurement technology wasdesigned and realized to solve the problems of long service time，low efficiency and high labor intensity in therailway freight yard which caused by the manual operation of crane spreader alignment. The overall architec...
更多Number of views：4018 Amount of downloads：3822
