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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...
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Number of views:2076 Amount of downloads:6956
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HOU Yongquan,MA Lifang,MEI Shuang,WU Bo,WANG Tan,LU Tao
Abstract:In recent years,the use of microinverters has received a lot of attention as one of the viable methodsfor residential and commercial PV power conversion systems. Flyback inverters operating in current continuousconduction mode(CCM)have been widely studied for their low output ripple current,high efficiency,...
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Number of views:1993 Amount of downloads:6954
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LUO Ke,WU Shuanglong,REN Chao,LIU Yuan
Abstract: Aiming at the electromagnetic noise problem of the permanent magnet synchronous motor for electric vehicle,the causes of noise were analyzed from the perspective of current harmonic and electromagnetic force. It has shown that current harmonics control is an effective method for motor electromagnetic noise...
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Number of views:5188 Amount of downloads:6948
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HUANG Xu,LIU Yichao,ZHU Hanqing,LIU Yang
Abstract: The DC fault current calculation method of modular multilevel converter(MMC)is the key to studythe DC fault transient characteristics and isolate the fault point rapidly in VSC-HVDC grid. Firstly,aiming at twotypical MMC fault equivalent models,the topology and the capacitor voltage characteristics when th...
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Number of views:4594 Amount of downloads:6940
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LI Dexiang,LU Jiayu,GE Wenqing,LI Bo,TAN Cao
Abstract: Aiming at the problems of high control performance and long design cycle of electromagnetic linearactuator control parameters,a multi-objective optimization design method of control parameters was proposed.Based on electromagnetic linear actuator system,a robust controller was designed. The controller para...
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Number of views:5153 Amount of downloads:6931
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YANG Shuying, WANG Qishuai, DONG-YE Yalan, XIE Zhen
Abstract: For interior permanent magnet synchronous motor(IPMSM) , accuracy of its discrete-time model isusually at the cost of complexity. To find out a way out of the dilemma, stator flux is chosen as the state variable,allowing its model be represented in the complex form and resulting in a concise model in appear...
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Number of views:5459 Amount of downloads:6927
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WANG Xing,TAN Peixiao,CHENG Zhijiang,MAWanqing,TIAN Bo
Abstract: Retired power batteries have poor parameter consistency,when they are used for energy storageafter series and parallel connections,the barrel effect is obvious and the failure rate is high. So the improved modular multilevel H-bridge converter(MMHC)distributed energy storage based on modular multilevel con...
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Number of views:4572 Amount of downloads:6920
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QIN Changfeng,YIN Jiang,SONG Shijie
Abstract:In order to solve the problem of parameter estimation in the high-performance control of squirrelcage asynchronous motor,a method for joint parameter identification of asynchronous motors with dual modelsbased on improved whale algorithm was proposed. This method can effectively identify the stator resistan...
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Number of views:2104 Amount of downloads:6915
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WU Han,HUANG Xinghua,QIAO Zhendong,FAN Yuanliang,ZHU Junwei,CHEN Jinyu
Abstract:Accurately estimating the state of health(SOH)of lithium-ion batteries is a crucial prerequisite forensuring the safe and stable operation of energy storage systems. The key to improving the accuracy of SOHestimation lies in the rational selection of health characteristics that can effectively reflect the s...
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Number of views:1880 Amount of downloads:6912
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YU Jia,Wang Xiaorong,Dai Yuesheng,LI Xuan
Abstract: With the advance of smart power grid construction,the terminal laying rate of intelligent acquisitionequipment has been greatly improved,and the demand-side terminal electrification has become an irreversible trend.In recent years,the problems of users' default power supply and private overlapped lines...
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Number of views:5757 Amount of downloads:6912
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SU Jichen
Abstract: Due to the low efficiency of data processing and high export delay of intelligent measurementequipment in substation engineering,the construction progress of substation engineering is slow. Therefore,the data batch export system of intelligent measurement equipment in substation engineering was designed. T...
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Number of views:5083 Amount of downloads:6911
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GU Laiqiang
Abstract:The traditional three-phase pulse width modulation(PWM)rectifier requires six power switches.Due to the shoot-through problem between two switches on the same bridge arm,the control difficulty is increasedand overall system design becomes more complicated. A half-controlled three-phase PWM rectifier topolog...
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Number of views:1920 Amount of downloads:6908
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SONG Wenxiang,REN Hang
Abstract: Six phase inverter provides abundant voltage vector resources for dual three-phase permanentmagnet synchronous motor,which can make predictive current control more accurate. However,more voltagevectors cause the problem of too much calculation. At the same time,the harmonic current of dual three-phase motor...
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Number of views:5647 Amount of downloads:6904
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CHEN Qun,ZHOU Jiemin,HONG Feng,ZHENG Gang,XI Zhiyang
Abstract: The solid-state power controller,which integrates the functions of traditional power distributiondevices such as circuit breakers and relays,is the core component of the all-electric aerospace vehicle powerdistribution system.Among them,the inverse time overcurrent protection technology is one of the key t...
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Number of views:3654 Amount of downloads:6902
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LUO Lan,WANG Yuhong,SONG Ruihua,BI Jingtian,CHEN Shiyu,WAN Liangbin
Abstract: In the multi terminal flexible direct current(DC)transmission system,the flexible direct inner andouter loop control can not provide inertial support for the receiving end passive network. Traditional virtualsynchronous generator(TVSG)control can provide inertia support for passive network,but it can only ...
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Number of views:4261 Amount of downloads:6895