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FENG Xiang，YU Yue，LI Cheng，ZHENG Wei，LIU Jianhua
Abstract：The traditional ultra high speed permanent magnet synchronous motor（PMSM）driver uses PWMequivalent sine voltage output，which leads to severe motor heating due to large harmonics，and it cannot be used in situations where the input voltage changes over a large range，such as fuel cells. To reduce the heat gene...
更多Number of views：1787 Amount of downloads：6210
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LOU Bin，HAI Ying
Abstract：Harmonic loss is one of the main causes of safety accidents in excitation transformers. If the lossvalue is too large，it can easily affect normal substation and transmission. Therefore，a method based on waveletpacket decomposition and reconstruction was proposed to calculate the additional loss of rectifica...
更多Number of views：2070 Amount of downloads：6204
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ZHU Junwei，HE Feng，CHEN Peixing
Abstract：With the continuous integration of new energy generation and the increasing degree of power linecabling，the problem of voltage exceeding limits in new type power system is becoming increasingly prominent. Adynamic reactive power optimization model for new type power grids was established to address this iss...
更多Number of views：1444 Amount of downloads：6202
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CAO Min，YU Wenjin，BAI Zeyang，YI Xin，JU Jian
Abstract：In order to ensure the minimum carbon emission and optimal power distribution of the hybridenergy storage microgrid under the constraint of carbon footprint，a distributed coordinated control algorithm of the hybrid energy storage microgrid under the constraint of carbon footprint was proposed. Based on the ...
更多Number of views：1992 Amount of downloads：6189
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WU Qing，AN Shaoliang，XU Yixuan，DONG Songsong
Abstract: A quasi-resonant Flyback（QR-Flyback）converter with 65 W output was designed. The valleyswitching principle and the switching loss reduction mechanism of QR-Flyback were analyzed，the frequency andloss characteristics of the system under different working conditions were compared，and the advantages anddisadv...
更多Number of views：2170 Amount of downloads：6179
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YANG Lei，WANG Xianjun，WANG Zijian，ZHAO Weihua，LI Peng，LI Mengxi
Abstract：As the penetration rate of household distributed PV in China's low-voltage distribution networkcontinues to increase，the power flow of the distribution network has changed，leading to more serious problemssuch as node voltage overruns and three-phase imbalance，which poses a serious threat to the safe and...
更多Number of views：2339 Amount of downloads：6167
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WANG Chun，WU Pengtao，GUO Bin，LÜ Jing，HUANG Hongwei，MAO Wenzhao
Abstract: In order to improve the efficiency of power grid equipment maintenance，an evaluation index ofequipment maintenance value based on Markov model was proposed，and an optimization decision method of power grid maintenance based on maintenance value evaluation was constructed. The value evaluation index of powe...
更多Number of views：3483 Amount of downloads：6165
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ZHANG Yi，CHANG Pengfei
Abstract: With the increasing penetration of large-scale wind and PV power within the power system，theywill inevitably participate in the load frequency contro（l LFC）. Since the power output of wind and PV is unstable，which would affect the power balance of grid，thus cause unstable frequency. A LFC method based on d...
更多Number of views：3683 Amount of downloads：6163
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CHEN Ling
Abstract: With the large increase of load users，the load side adjustable resources gradually increase，and theload side demand response（DR）resources are used to participate in microgrid scheduling to improve the level ofnew energy consumption. In order to give full play to the scheduling potential of DR resources and...
更多Number of views：1940 Amount of downloads：6160
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WANG Ru，WANG Haiyun，FAN Tianyuan，ZHANG Shengnan
Abstract: University buildings are major energy users，and there are two main forms of energy use：electricityand heat. Making full use of the roof resources of university buildings to develop solar energy projects andrationally allocate energy storage can effectively improve the energy economy. In order to improve th...
更多Number of views：2549 Amount of downloads：6156
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ZHANG Hao，WANG Xuanyuan，NING Bo，LIU Zhen，LIUYa，HUANG Hongwei
Abstract: In order to improve the actual utility of power electricity package decision and avoid the default riskcaused by blind choice，the response stability of power users according to their purchase contract was studied ，apeak-valley power electricity package decision-making method considering response stability ...
更多Number of views：4094 Amount of downloads：6156
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HAN Junkang，HAO Sipeng，LI Shuheng
Abstract：The high proportion of new energy grid connection increases the frequency fluctuation of the powergrid，and grid-forming energy storage is regarded as a key resource to improve frequency stability due to its fastresponse and inertia support capability. To address the underestimation of fast-response resource...
更多Number of views：1275 Amount of downloads：6155
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JING Weiwei，FU Hui，ZHENG Xian，LI Shuangwei，SHI Mingming，ZENG jiang
Abstract：With the accelerated construction of new power system，the harmonic characteristics of power gridare becoming more and more complex. It is of great significance to study the effective statistical management ofharmonic data for evaluating the power quality of power grid. A statistical method of harmonic evalu...
更多Number of views：2072 Amount of downloads：6148
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NIU Shengsuo，CHENG Bo，LI Jinbo，LÜ Linfei，FU Xiulai
Abstract: Avoltage disturbance detection method based on mathematical morphological filtering and derivationdq transformation was proposed. Firstly，in order to reduce the interference of pulses，harmonics and other noises in the signals to be detected，a composite morphological filter was constructed based on adaptive...
更多Number of views：3436 Amount of downloads：6147
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LU Wu，ZHENG Renjie，ZHAO Wenbin，TANG Jiayuan
Abstract: Efficient and accurate short-term load forecasting is essential to the safe and stable operation of thepower system. A combined prediction model based on empirical mode decomposition（EMD）and gated recurrentunit（GRU）was proposed. First，the date factors ，meteorological factors and historical load factor were...
更多Number of views：3703 Amount of downloads：6138
