Ports are major energy consumers and carbon emission producers. Developing integrated port systems (IPES) is the key to solve this problem. The forms in an IPES include electricity, hydrogen, heat natural gas. Hydrogen can be generated from surplus renewable energies via water electrolysis, thus power previously oil-fueled equipment. Meanwhile, remaining hydrogen converted gas by methanation reaction. By using fuel cells, turbine, boiler boiler, supply electrical loads area, forming a...

The speed control of the surface-mounted permanent-magnet synchronous motor (SPMSM) based on Takagi-Sugeno (T-S) fuzzy models is designed and implemented in this paper. In drive control, proportional-integral controller generally applied. However, tracking performance load regulation capability should be compromised designing process controller. This study develops a T-S model with good ability variation regulation. First, dynamic an SPMSM demonstrated torque treated as disturbances....

Numerous studies have addressed the use of perovskite materials for fabricating a wide range optoelectronic devices. This study employs deposition an electron transport layer C60 and Ag electrode on CH3NH3PbBr3 crystals to complete photodetector structure, which exhibits metal-semiconductor-metal (MSM) type structure. First, were grown by inverse temperature crystallization (ITC) in pre-heated circulator oven. oven was able supply uniform heat facilitating growth high-quality large-area...

Abstract Decision‐dependent (endogenous) uncertainties (DDUs), as a new type of revealed recently, couple dispatch decisions with uncertainty parameters and thus render power system more challenging. However, most previous works handled various DDUs via stochastic programming (SP) or robust optimization (RO) in two‐stage framework, which undoubtedly introduces the drawbacks SP RO, cannot meet nonanticipativity requirements scheduling. In this paper, multistage distributionally (DRO) method...

Electrified logistical operation (LO) provides significant demand response potentials for seaport power systems. However, existing simple flexibility (LF) models and attendant logistical-related uncertainties may reduce benefits result in infeasible LO schemes. This paper proposes a multi-stage logistic-power scheduling method under variable ship arrival/ departure schedule renewable generation. First, comprehensive optimal flow (OLPF) model is proposed to incorporate LF into dispatch (PD),...

Multisource migration with frequency selection is now extended to multisource full waveform inversion (FWI) of supergathers for marine streamer data. There are three advantages this approach compared conventional FWI 1. The method computationally more efficient than FWI. 2. A supergather requires an order magnitude less storage the original 3. Frequency overcomes acquisition mismatch between observed data and simulated This problem has prevented application geometries in space-time domain....

Shore-to-ship power (SSP) technology is an effective way for developing sustainable maritime transportation systems. Its implementation requires attractive pricing and incentive policies. This paper proposes a time-of-use (TOU)-based strategy SSP services considering the ship behaviors. A hierarchical framework first proposed to characterize interactions among government regulators (GR), seaport authorities (SA) ships, which formulated as tri-level two-loop Stackelberg game model. On...

With the widespread popularization of unmanned sweepers, path planning has been recognized as a key component affecting their total work efficiency. Conventional methods often only aim to improve efficiency while ignoring energy optimization, crucial factor for sustainable development. In this paper, an energy- and time-minimization sweeper arc problem (ETM-ARP) is investigated, effects road slope, dynamic changes in on-board mass, mode switching vehicle work, traffic lights are taken into...

INTRODUCTION: Tower-type heliostat field is a new type of energy conversion, which has the advantages high efficiency, flexibility and sustainability environmental friendliness.
 OBJECTIVES: Through research improvement tower to promote development solar utilization technology.
 METHODS: In this paper, we calculate optimize by using single objective optimization, high-dimensional particle swarm algorithm multiple group genetic algorithm.
 RESULTS: case question setting,...

Logistic-energy coordination is an effective way to improve energy efficiency for electrified seaports. However, exiting works adopt fixed logistic power load models and seldom address renewable uncertainty adequately, resulting in low system flexibility robustness. In this paper, a novel logistic-energy collaborative dispatch model first proposed. The integrates feedback from all-electric ships (AESs) electric-powered cranes as well automated guided vehicles (AGVs) battery swapping mode...

The introduction of multiple energies and the electrification equipment are coupling logistic systems (LS) energy (ES) tightly together in seaports. This paper proposes an optimal coordinated operation strategy LS ES seaport integrated (SIES) with purpose minimizing sum operating service costs. In proposed cooperative framework, ships quay cranes (QCs) regarded as load ES, so that berth allocation QC assignment determined under both constraints. temporal-spatial shifting logistical loads is...

A cavitation thermodynamics model based on phase change, which is suitable for prediction of with thermal effects developed. The characteristic at different temperature and number investigated analyzed. initial turbine flow meter generally occurs in the blade suction side. With development cavitation, zone will appear front back end conditioner. In order to avoid gather design optimizing structure should be adapted, same time, pressure limited installation requirements. Expanding measurement...

Insert conditions significantly influence the product quality and manufacturing efficiency of lathe machining. This study used power spectral density distribution vibration signals a machining accelerometer to design an insert condition classification system applicable different conditions. For four common (i.e., built-up edge, flank wear, normal, fracture), herein, was established with two stages—insert modeling model fusion. In stage, magnitude features segmented frequencies were captured...

Decision-dependent (endogenous) uncertainties (DDUs), as a new type of revealed recently, couple dispatch decisions with uncertainty parameters and thus render power system more challenging. However, most previous works handled various DDUs via stochastic programming (SP) or robust optimization (RO) in two-stage framework, which undoubtedly introduces the drawbacks SP RO, cannot meet nonanticipativity requirements scheduling. In this paper, we propose multistage distributionally (DRO) method...

The shift towards electric aircraft poses significant challenges in balancing lightweight design and high reliability of powertrains. Typically, improving requires redundancy, which adds weight, while designs often compromise reliability. In this paper, we propose a weight-constrained allocation model for the powertrain aircraft. relationship between weight each component, including battery, inverter, motor is analytically linearly expressed using universal generating functions (UGF)...

In this paper, the bidirectional charger/discharger is developed on T-S fuzzy models. The circuit topology constituted by Buck and Boost converters. non-ideal element model considered in circuit. First, state space average method adopted to obtain equations of charger/discharger. Next, output voltage controller designed based Moreover, H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> performance index added suppress disturbances. And...