State Grid Zhejiang Electric Power Co., Ltd. Taizhou Power Supply Company

Zhejiang University

Zhejiang Huakang Pharmaceutical Co., Ltd.

State Grid Zhejiang Electric Power Company Limited

Taizhou Economic Development Zone Transportation Inspection Branch of Taizhou Hongda Electric Power Construction Co., Ltd.

Taizhou Hongda Electric Power Construction Co., Ltd.

Taizhou Power Supply Company

Zhejiang Geely Holding Group Co., Ltd

Jian Yang

Shufu Li

Guode Ying

Dongbo Zhang

Jie Yu

Yizhi Zhu

Xinjian Chen

Chenghuai Hong

Feng Guo

Weiming Lu

Zihuai Zheng

Daojian Hong

Lintong Wang

Jiandong Si

Jianhua Lv

Xiaofei Wang

Qiang Gao

Yuguo Zheng

Mian Li

Jun Liu

Chi Zhang

Qian Zhang

Kang Wang

Yuande Zheng

Zhiqiang Liu

Jianjun Zhu

Xiaojian Zhang

Yi Zheng

Xin Wang

Chen Zhou

Huan Liu

Wenhui Li

Jiahao Zhou

Zhouhong Wang

Yuxi Tu

Lijun Zhu

Zhijian Yu

Binren Wang

Yefeng Luo

Xu Jiang

Han Gao

Minzhi Chen

Dongqi Lu

Taogang Zhang

Ge Zhou

Huanghao Ying

Huiyong Qiu

Xi Yang

Bin Tang

Xin Lv

Jianguo Pan

Qiuxiao Wang

Junzhe Liang

Guanglei Wan

Yiqin Tang

Chengshi Zeng

Yilun Zhu

Minyan Xia

Huiying Gao

Bingren Wang

Qinye Chen

Zi Ying

Weizhong Chen

Haohua Wu

Yongling Li

Zuofu Jiang

Haili Liang

Huiqi Chen

Qingxi Cai

Baorong Liu

Xingbai Wang

Yiting Hu

Chuhang Xu

Xinghui Jiang

Yin Lin

Xun Ma

Weiwei Fan

Baoxing Mao

Huang Zhang

Qian Yu

Jieli Bao

Carl Dietrich

Disclosed are a photovoltaic energy storage offline coordination system and method based on demand management. The system includes a photovoltaic generator set, an inverter, a dispatch and control device for charge-discharge, a load monitor, a first and second energy storage device, and a remote console. The photovoltaic generator set is electrically connected to the dispatch and control device for charge-discharge via the inverter; the first energy storage device is connected to a load-side power supply bus via a first dispatch and control unit; the second energy storage device is connected to the load-side power supply bus via a third dispatch and control unit; a second dispatch and control unit is connected to the load-side power supply bus; the load monitor is provided at the load-side power supply bus, and configured to monitor a load of the load-side.

Photovoltaic energy storage offline coordination system and method based on demand management

A method for intelligently adjusting a power flow based on a Q-learning algorithm includes: converting a variable, an action, and a goal in a power grid to a state, an action, and a reward in the algorithm, respectively; selecting an action from an action space, giving an immediate reward based on a result of power flow calculation, and correcting a next state; forwardly observing a next exploration action based on a strategy in the Q-learning algorithm; updating a Q value in a corresponding position in a Q-value table based on the obtained reward; if a final state is not reached, going back to step 2; otherwise, increasing the number of iterations by 1; if the number of iterations does not reach predetermined value K, that is, Episode<K, going back to step 2; otherwise, that is, Episode=K, outputting the Q-value table; and outputting an optimal unit combination.

Method for intelligently adjusting power flow based on Q-learning algorithm

Disclosed is a multi-dimensional analysis method for a tripping risk of a whole transmission line due to a lightning shielding failure. A quantity of thunderstorm days, a tower size, a terrain proportion, an altitude, and insulation configuration data are collected for a transmission line for which a tripping risk due to a lightning shielding failure needs to be analyzed, and a striking distance, an exposure distance, a lightning resisting level of the line after altitude factor correction, and a lightning shielding failure risk of a single-base tower are calculated in turn. Characteristics of a lightning shielding failure under different nominal heights, quantities of thunderstorm days, and terrains are studied. Representative combination conditions are selected to calculate a tripping risk of a typical tower due to the lightning shielding failure. A weight coefficient is extracted, to calculate a tripping risk of the whole line due to the lightning shielding failure.

Multi-dimensional analysis method for tripping risk of whole transmission line due to lightning shielding failure

Disclosed are apparatus, electronic device, and method for stitching dual-camera images. The method includes collecting two images having overlapping photographic content. The method includes extracting and matching feature points of the two images. The method includes roughly aligning the two images by using a homography matrix. The method includes accurately aligning the two images by using a least squares method to complete stitching the two images.

Method and apparatus for stitching dual-camera images and electronic device

A source-network-load-storage coordination dispatching method in a background of a coupling of renewable energy sources, including: taking an expectation of a minimum grid operating cost in a dispatching cycle as an objective function; generating an approximate value function of an output of a set for generating electricity from renewable energy sources and a user load, and constructing a source-network-load-storage coordination dispatching model with combination of the objective function; obtaining forecast data of the output of a set for generating electricity from renewable energy sources and the user load, and inputting the forecast data into the dispatching model for solving; performing iterative updating on the approximate value function, importing the approximate value function after the iterative updating into the dispatching model for iterative solving, and terminating an iterative process until a solving result satisfies a preset convergence condition; and using a solving result of a last iteration as a dispatching strategy.

Source-network-load-storage coordination dispatching method in background of coupling of renewable energy sources

The present invention relates to a xylitol preparation device integrating evaporation, crystallization and centrifugation, including a xylitol tank, a cleaning liquid tank, a recycling tank and a multiple distribution system, wherein the multiple distribution system includes J groups of evaporators for evaporation concentration, K groups of vacuum crystallization kettles for vacuum crystallization and L groups of centrifuges for centrifugation, wherein 2&#x2264;J&#x2264;6, 6&#x2264;K&#x2264;12 and 2&#x2264;L&#x2264;4; the evaporator, the vacuum crystallization kettle and the centrifuge in different groups are sequentially connected in series with one another through a pipeline and a valve respectively; by controlling on and off of each valve, a xylitol exchange liquid is switched and controlled between a series-connection mode and a parallel-connection mode in the multiple distribution system to enable evaporation, crystallization and separation processes to reach an optimal effect distribution so as to improve productivity. The present invention further discloses a control method of the device. The processes and equipment of the present invention are highly integrated to realize continuous integrated production of xylitol preparation with low energy consumption and high automation degree, and full utilization of raw materials.

Xylitol preparation device integrating evaporation, crystallization and centrifugal separation and control method thereof

A hierarchical control method for an island power grid energy storage system for increasing new energy generation fluctuation is disclosed. The method includes implementing a rolling dispatch method based on an idea of model predictive control; comprehensively considering a response capability of the energy storage system to grid-wide economic dispatch instructions and life loss of energy storage lithium batteries, and constructing an objective function of an intraday control model of the energy storage system with economic optimization; and constructing, on a basis of satisfying the objective function of the intraday control model, a real-time control model of the energy storage system and solving the model, and determining charge and discharge plans of a lithium battery energy storage system and a supercapacitor energy storage system.

Hierarchical control method for island power grid energy storage system for increasing new energy generation fluctuation

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Zhejiang, China

Jian Yang