Hydrogen fueling stations (HFSs) will proliferate in the near future as they are prerequisites for fast developing hydrogen-powered vehicles (HVs). The HFSs can utilize cheap renewable energy from, e.g., wind turbines (WTs), to generate and store hydrogen on site locally. Conventional studies usually ignore independence of WT perform joint operation optimization them. This article, however, proposes a cooperative model considering individual benefit. Nash bargaining theory is employed deal...

Because of the uncertainty renewable energy generation and load, batteries as storage devices play an important role in ensuring safety reliability microgrid. To take full advantage batteries, battery lifetime characteristics are analysed, a weighted Wh throughput method is proposed to estimate lifetime. improve economy microgrid, economic scheduling model microgrid grid‐connected mode established with consideration For fast efficiently solving model, technique developed convert optimisation...

The uncertainty and intermittency of renewable energy sources pose a challenge to generation scheduling microgrids. This paper presents hierarchical framework handle the realize an economic schedule lower level combines battery energy-storage system (BESS) with sources, targeting maximal utilization power minimal deviation from schedule, provide optimal plan in day-ahead market. upper minimizes total cost microgrid by genetic algorithm (GA) yield dispatchable distributed generators (DGs)...

Autonomous Underwater Vehicle are widely used in industries, such as marine resource exploitation and fish farming, but they often subject to a large amount of interference which cause poor control stability, while performing their tasks. A decoupling algorithm is proposed single volume-single attitude angle model constructed for the problem severe coupling system six degrees freedom Vehicle. Aiming at complex Active Disturbance Rejection Control (ADRC) adjustment relying on manual...

For a stand-alone microgrid, the reliability criterion is often taken into account to guarantee supply adequacy. This paper proposes mixed integer linear programming (MILP) based model determine optimal sizing of photovoltaic/diesel/battery microgrid considering reliability. Firstly, an economic-oriented planning developed. Subsequently, rolling horizon Sequential Monte Carlo method developed evaluate system In particular, multidimensional piecewise linearization proposed approximate...

Abstract Long‐term scenario generation of renewable energy is regarded as an important part the optimal planning systems. This study proposes a method for generating long‐term correlated scenarios wind and photovoltaic outputs from historical data. The was divided into two processes: yearly sequence intraday wind–solar energy. In process, k ‐means clustering algorithm Markov chain Monte Carlo simulation were developed to capture seasonal features energies. Furthermore, attention‐based...

Considering uncertainties from wind power and day-ahead market price, this paper proposes a scenario-based two-stage model for the scheduling of integrated energy distribution network which couples various systems such as electricity, heat, natural gas. However, gas constraints pose great challenge to computation because piecewise linear approximation (PLA) method linearizes nonlinear flow-pressure (i.e., Weymouth equations) by adding large number additional auxiliary variables into model,...

Increasing the redundancy of distribution lines and increasing penetration distributed energy resources (DERs) both help microgrids ride through contingencies. However, it remains a challenging problem for how to coordinate these two measures minimising deployment cost while guaranteeing pre‐specified degree resilience in case Accordingly, this study proposes novel microgrid planning model site size candidate sets DERs close coordination, which is mathematically equivalent two‐stage robust...

Using the multi-terminal VSC-HVdc (MTDC) system to collect far-distance offshore wind power into main onshore ac grid has become one of ideal transmission approaches for renewable energy integration. However, with traditional fixed dc droop control in MTDC system, lack capability regulating flow might pose a great challenge operation. Accordingly, novel model been established this paper which establishes that output converters can be formulated as linear function variables, namely initial...

This paper presents an efficient method for the optimal generation scheduling of a microgrid comprising various distributed generators (DG), storage device. To give operation strategy, optimization model is proposed respecting energy resources (DER) constraints and system constraints. The objective function aimed at minimizing cost associated with DG's production start-up shut-down decisions, along possible profits. problem similar to unit commitment in power system, however, there are some...

To overcome the topographic limitations of pumped hydro storage (PHS) system, novel gravity energy (GES) technologies are developing. In this paper, a pioneering work on modeling and scheduling GES system is conducted. The stores releases by lifting lowering concrete bricks. Since working principle similar to that PHS plant, double-tower based model established. addition, day-ahead proposed test operation such system. Specifically, uncertainty market price considered with data-driven...

In order to address the wind power uncertainty in security constrained economic dispatch (SCED), this study proposes a two‐stage data‐driven distributionally robust reserve and energy scheduling (DDRRES) model that considers loss of spillage load shedding. This aims minimise total cost while ensuring operating constraints are satisfied on adjustable set, which boundaries decision variables. Unlike previous approaches, assumed underlying true probability distribution (PD) is known, proposed...

With the significant increase in DC loads (such as data and telecommunication centers) at power distribution level, an additional set of electronic converters are required to connect these AC-dominant network. Notably, hybrid AC/DC microgrids (MGs) serve promising solutions satisfying both AC with a reduced number installed converters. Since may be randomly distributed MG, how place feeders simultaneously fulfill economic security requirements MG operations remains challenging problem. To...

Hydrogen-based carbon-free microgrids (CFMs) show great potential in alleviating the pressure of climate changes. To reduce computational burden, representative days are usually selected to simulate yearly operation planning models CFMs. This method, however, fails capture long-term dynamics renewable power generation and behaviors hydrogen storage due loss data. effectively reflect these characteristics, a convex relaxation-based model using data is proposed. The developed for standalone...

To increase the resilience of shipboard power systems, this paper presents an optimal defense strategy to protect critical lines against attacks. In modeling, attack is considered destroy one bus, which may result in that all are connected bus will be out service unless protection enabled. Furthermore, after true occurs, network restoration performed as soon possible pick up loads and maintain system operation. address uncertain location attacks, a tri-level robust set under worst attack....

Due to similar meteorological conditions, neighboring wind farm outputs are correlated, which usually results in amplified uncertainty. However, power is assumed be independent traditional transmission planning, causing potential risks integration and system security. This paper initially proposes a planning approach considering correlation of power. The spatial dependence modeled by Copula theory. Then, method established based on multi-scenario model correlated further solved generic...