Combined cooling, heating, and power (CCHP) systems have been widely applied in various kinds of buildings. Most operation strategies for CCHP microgrids are designed based on day-ahead profiles. However, prediction error renewable energy resources (RES) load leads to suboptimal dispatch scheduling. In this paper, we propose an online optimal approach model predictive control with feedback correction compensate error. This includes two hierarchies: 1) rolling optimization; 2) correction. the...

This paper investigates the real-time scheduling of residential appliances in home energy management system (HEMS), including electric water heater (EWH), air conditioner (AC), clothes dryer (CD), vehicle (EV), photovoltaic cell (PV) and battery. A demand response (DR) mechanism is proposed to stimulate household participate DR services. The conditional value-at-risk (CVaR) applied make a trade-off between expected costs risk exposure uncertainties electricity price other factors. Fuzzy...

Abstract This article investigates a real-time energy control approach for home management system, including the electric water heater, air conditioner, clothes dryer, vehicle, photovoltaic cell, critical loads, and battery system. A demand response mechanism is proposed to enable households participate in services. Half-hour-ahead rolling optimization strategy are combined achieve household economic benefits ability deal with complex operating environments. fuzzy logic controller utilized...

This paper presents a unit commitment problem with uncertain loads and wind power. A chance-constrained two-stage stochastic program programming formulation is proposed for the day-ahead scheduling. The loss of load probability (LOLP) power utilization less than certain level, referred to as (LOWP), transmission line overloading (TLOP) are modeled chance constraints, provide high reliability supply ensure generation. converted into an equivalent deterministic by sequence approximations...

To retain intact state information of the district heating network (DHN) as possible in optimization heat and electricity integrated energy system (HE-IES), this article combines transient flow steady-state electric power to formulate dynamic optimal (OEF) model HE-IES. For efficient standardized solution, finite difference method is applied convert partial differential equation constraint (introduced by temperature dynamics DHN) into a set linear equality constraints. The structure...

Wide development of the heat and electricity integrated energy system (HE-IES) has provided flexible multi-energy optimization management, which improves efficiency benefits environment. It is essential to calculate flow quickly, accurately, reliably as scale complexity increase. To handle this problem, we propose a partitional decoupling method based on decomposed model for large-scale HE-IES. The computation mechanisms are presented considering various scales topologies, consist mode solve...

Offshore green-hydrogen production: breakthrough in the bottleneck of offshore wind development.

The increased deployment of electricity-based hydrogen production strengthens the coupling power distribution system (PDS) and energy (HES). Considering that to (PtH) has great potential facilitate usage renewable sources (RESs), coordination PDS HES is important for planning purposes under high RES penetration. To this end, paper proposes a multi-stage co-planning model HES. For PDS, investment decisions on network assets are optimized supply growing electric load PtHs. HES, capacities PtHs...

Abstract While extensive research has focused on enhancing distribution networks through either maximizing Distributed Generation (DG) integration or network reconfiguration at specific times, there is a need for further investigation into concurrently optimal and DG allocation. To reduce the cost of energy delivered, loss, voltage deviation, this study gives dynamic multi‐objective together with siting sizing dispatchable non‐dispatchable DGs. The widely used IEEE 33‐bus large‐scale 118‐bus...

Combined heat and power system (CHP) with renewable energy generation, which operates high efficiency low costs, is an important form of microgrid. This paper deals the problem economic operation cogeneration including wind energy, PV, recovery boiler battery. On basis predicting next 24-hours' PV power, demand, a nonlinear optimal model built to deal available resources formulate work schedule. Besides, this focuses on effect battery peak-valley electricity price costs. Four different cases...

Energy management is facing new challenges due to the increasing supply and demand uncertainties, which caused by integration of variable generation resources, inaccurate load forecasts non-linear efficiency curves. To meet these challenges, a robust optimization method incorporating piecewise linear thermal electrical curve proposed accommodate uncertainties cooling, load, as well photovoltaic (PV) output power. Case study results demonstrate that model performs better than deterministic in...

This paper presents the results of three control strategies managed energy services with home management system (HEMS)-integrated devices. The HEMS controls and monitors types devices: 1) heating; 2) task-specific; 3) storage Three approaches are proposed for rolling optimization by HEMS, namely, mixed integer linear programming (MILP), continuous relaxation (CR), fuzzy logic controller (FLC). CR approach is identified to reduce computational complexity MILP changing into an LP solution. FLC...

Multi-stakeholders in multi-microgrids (MMGs) always face ubiquitous uncertainties which bring great challenges to the distributed scheduling of system. To cope with this problem, a stakeholder-parallelizing adaptive robust optimization (SPD-ARO) model is proposed paper for hybrid ac/dc MMGs. Stakeholders at utility-, supply-, and network-levels are treated as lower layer bodies who synchronously conduct while considering multiple uncertainties. A nested column-and-constraint generation...

Distributed energy resources (DERs), including photovoltaic (PV) systems, small wind turbines, and storage systems (ESSs) are being increasingly installed in many residential units the industry sector at large. DER installations apartment buildings, however, pose a more complex issue particularly context of property ownership distribution DR benefits. In this paper, novel aggregator service is proposed to provide centralized management services for residents asset owners buildings. The...