Fast economic power dispatch method for power system planning studies

Elsaiah, Salem; Cai, Niannian; Benidris, Mohammed; Mitra, Joydeep

doi:10.1049/iet-gtd.2014.0130

Cited by 33 publications

(16 citation statements)

References 38 publications

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“…Nonlinear power flow and DC power flows are commonly used in the literature to carry out optimization studies on terrestrial and shipboard systems. In recent literature, enhanced linearized power flows [21,22] have also been used as they compensate for most of the drawbacks of the conventional DC power flows. A lot of research needs to be performed in order to secure transition from AC marine power systems to hybrid and then DC-powered marine power systems.…”

Section: Future Studiesmentioning

confidence: 99%

Hybrid Maritime Microgrids: A Quest for Future Onboard Integrated Marine Power Systems

Caravella¹,

Austell²,

Brady-Alvarez³

et al. 2019

Innovation in Energy Systems - New Technologies for Changing Paradigms

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The following is a comprehensive analysis which details potential ways for the maritime industry to begin to phase out AC power generation and distribution on new vessels over a short period of time. Therefore, the vessels of the future should consider transitioning into DC power generation and distribution. During the transition from AC shipboard systems to DC shipboard systems, there will be a time during which the vessels will be run by "hybrid" shipboard power systems, which utilize a mixture of AC and DC power. These systems are known as integrated marine power systems (IMPS) or hybrid maritime microgrid architectures, since they represent a distribution system or a part thereof. This study presents a state of the art of maritime systems, emphasizing on the design aspects of hybrid maritime microgrids, summarizing the advantages, disadvantages, and the challenges that planners may face when it comes to the vessels of the future. This study also reviews remedies that have been recently proposed in the literature to overcome such challenges. In addition, this work reports on the problem of service restoration of shipboard power systems and introduces directions on how to enhance the survivability of maritime power systems using techniques based on distribution system reconfiguration.

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Section: Future Studiesmentioning

confidence: 99%

Hybrid Maritime Microgrids: A Quest for Future Onboard Integrated Marine Power Systems

Caravella¹,

Austell²,

Brady-Alvarez³

et al. 2019

Innovation in Energy Systems - New Technologies for Changing Paradigms

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hittinger et al [7] analyzed hedging mechanisms for randomly generated electricity using co-located natural gas generation and energy storage. Elsaiah et al [8] investigated the integration problem from the dispatching perspective and proposed optimal economic solutions to the dispatch problem for planning and expansion planning purposes [9].…”

Section: Introductionmentioning

confidence: 99%

Optimal Integration of Intermittent Renewables: A System LCOE Stochastic Approach

Lucheroni

Mari

2018

Energies

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Abstract:We propose a system level approach to value the impact on costs of the integration of intermittent renewable generation in a power system, based on expected breakeven cost and breakeven cost risk. To do this, we carefully reconsider the definition of Levelized Cost of Electricity (LCOE) when extended to non-dispatchable generation, by examining extra costs and gains originated by the costly management of random power injections. We are thus lead to define a 'system LCOE' as a system dependent LCOE that takes properly into account intermittent generation. In order to include breakeven cost risk we further extend this deterministic approach to a stochastic setting, by introducing a 'stochastic system LCOE'. This extension allows us to discuss the optimal integration of intermittent renewables from a broad, system level point of view. This paper thus aims to provide power producers and policy makers with a new methodological scheme, still based on the LCOE but which updates this valuation technique to current energy system configurations characterized by a large share of non-dispatchable production. Quantifying and optimizing the impact of intermittent renewables integration on power system costs, risk and CO 2 emissions, the proposed methodology can be used as powerful tool of analysis for assessing environmental and energy policies.

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“…In this reference, the ED of the main grid and local MGs are solved using sensitive factors and an improved direct search method in stages I and II, respectively, and the optimal reschedules from the original dispatch solutions are provided in stage III. The authors have addressed the ED problem considering voltage magnitudes and reactive power flows in [9], where linear programming method is utilized for solving the problem. In this study, thermal capacities of transmission lines and line power transmission, and exponential loads are studied using piecewise linear models.…”

Section: Introductionmentioning

confidence: 99%

Application of Dynamic Non-Linear Programming Technique to Non-Convex Short-Term Hydrothermal Scheduling Problem

et al. 2017

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Short-term hydro-thermal scheduling aims to obtain optimal generation scheduling of hydro and thermal units for a one-day or a one-week scheduling time horizon. The main goal of the problem is to minimize total operational cost considering a series of equality and inequality constraints. The problem is considered as a non-linear and complex problem involving the valve-point loading effect of conventional thermal units, the water transport delay between connected reservoirs, and transmission loss with a set of equality and inequality constraints such as power balance, water dynamic balance, water discharge, initial and end reservoir storage volume, reservoir volume limits and the operation limits of hydro and thermal plants. A solution methodology to the short-term hydro-thermal scheduling problem with continuous and non-smooth/non-convex cost function is introduced in this research applying dynamic non-linear programming. In this study, the proposed approach is applied to two test systems with different characteristics. The simulation results obtained in this paper are compared with those reported in recent research studies, which show the effectiveness of the presented technique in terms of total operational cost. In addition, the obtained results ensure the capability of the proposed optimization procedure for solving short-term hydro-thermal scheduling problem with transmission losses and valve-point effects.

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Fast economic power dispatch method for power system planning studies

Cited by 33 publications

References 38 publications

Hybrid Maritime Microgrids: A Quest for Future Onboard Integrated Marine Power Systems

Hybrid Maritime Microgrids: A Quest for Future Onboard Integrated Marine Power Systems

Optimal Integration of Intermittent Renewables: A System LCOE Stochastic Approach

Application of Dynamic Non-Linear Programming Technique to Non-Convex Short-Term Hydrothermal Scheduling Problem

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