Purpose As China is on an inevitable march into the digital era, firms have accumulated abundant assets, such as algorithms and data. Facing possibility of using assets a new type input, besides traditional inputs capital labor, would powerful managers perform better? Would managerial power help increase efficiency how firm combines converts them outputs? Thus, purpose this study to investigate whether promotes corporate productivity by input. Design/methodology/approach Using data from...

In the cargo transportation system, hub-and-spoke transport network can make full use of scale effect between logistics hubs and reduce costs. Joint multiple modes give play to advantages different transportation, which not only reduces costs but also improves efficiency. Therefore, this paper combines multimodal network, establishes an optimization model under demand uncertainty. The takes into account hub capacity constraints customer satisfaction with respect time, facilitate solution, we...

Currently, the improvement of model parameter extraction accuracy is essential to research photovoltaic (PV) fields. In this study, a identification based on Pontogammarus maeoticus swarm optimization (PMSO) proposed. The PMSO used for mathematical models PV modules. algorithm, by giving ability free exploration particles that are far away from optimal solution, search scope expanded avoid falling into local optimum. Besides, each Gammarus has better convergence identification. Therefore,...

In the process of long-distance and large-volume transportation hazardous materials (HAZMAT), multimodal trans-portation plays a crucial role with its unique advantages. order to effectively reduce risk improve reliability transportation, it is particularly important choose suitable plan for transport HAZMAT. this paper, we study HAZMAT in networks. Considering fluctuation demand during actual process, difficult decision makers obtain accurate orders advance, leading uncertainty final plan....

Abstract With the development and application popularization of artificial intelligence robot technology 5G technology, a robotic arm is designed developed for rinsing porcelain bushing in high voltage substation this paper. Firstly, components implementation are presented, subsequently, circular cleaning structure with 120-degree split proposed to rinse bushing. Secondly, two-stage simple effective method realize automatic orientation utilizing photoelectric switches. Moreover, prototype...

In recent decade, the vehicle to grid (V2G) technology makes electric vehicles (EVs) become potential energy storage capacity for alleviating random fluctuation of renewable power. The EV aggregator is promising solution aggregate enough V2G. this paper, a preliminary study multi-objective optimal dispatch smart by estimating available aggregators proposed. behavior EVs described statistical model estimate maximum EVs. Then, multi-objectives and constrains are defined dispatch. genetic...

With the background of large-scale grid connection electric vehicles (EVs), this paper studies a multifunctional dispatching system based on EVs clusters. First all, in response to needs power load peak shaving, renewable energy consumption and emergency control, frameworks with different functions vehicle clusters are designed. The can take into account characteristics thermal plants, aggregators, users. Then, for corresponding optimization models established, strategies cluster charging...

GIS/HGIS equipment, which is the main switching equipment of power system, widely used in 110kV and above voltage grade substations. Since wide application thus, its accident frequency remains high all year round. This has caused huge economic losses to operating units seriously affected safe stable operation grid reliability supply. Thus, this paper studies key technologies monitoring system applied opening/off. The angle sensor installed on transmission device will monitor that travel...

Abstract With the development and application popularization of Artificial Intelligence robot technology 5G technology, a robotic arm is designed developed for rinsing porcelain bushing in high voltage substation this paper. Firstly, components implementation are presented, subsequently, circular cleaning structure with 120-degree split proposed to rinse bushing. Secondly, two-stage simple effective method realize automatic orientation utilizing photoelectric switches. Moreover, prototype...

Abstract Based on the distributed battery energy storage system (BESS), a grid-connection strategy considering harmonic restraint is investigated. It can compensate current to grid by measuring harmonics, then compensation implemented reduce total distortion (THD) of current. In this paper, method harmonics in and control principle providing power supply based BESS are described. On basis, flow designed. Firstly, grid-connected built MATLAB/Simulink uncontrolled rectifier with inductive...

Effective thermal management is crucial in the field of power converter design to ensure optimal performance and reliability devices. Power conversion system (PCS) key equipment for energy storage new system. In this paper, critical issue PCS main topology battery addressed. Failure dissipate heat properly can lead increased temperature, reduce component lifespan, as well reducing efficiency overall equipment. losses devices are calculated. Then, a simplified three-dimensional model designed...

Reactive power balance in the system is an important task planning and design of system. Its purpose to determine configuration type reactive compensation devices system, maintain voltage level, quality, other quality factors each node grid within a reasonable range under various operating modes. This article selects areas with high permeability distributed sources takes as starting point conduct research on distribution network after integration through simulation analysis, instance...