Desarrollo e implementación de un algoritmo de despacho económico para la microrred emulada de la UAO para zonas no interconectadas
19 Jul 2021-
TL;DR: The Magister en Sistemas Energeticos (MEE) project as mentioned in this paper proposes a Magister in Sistema Energy-Efficient Computing (MEEC) at the Universidad Autonoma de Occidente.
Abstract: Proyecto de grado (Magister en Sistemas Energeticos)-- Universidad Autonoma de Occidente, 2021
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TL;DR: In this paper, a stochastic real-time unit commitment model is proposed to deal with the realtime variability of non-dispatchable renewable resources including ideal and generic energy storage devices.
Abstract: Intermittence and variability of renewable resources is often a barrier to their large scale integration into power systems. We propose a stochastic real-time unit commitment to deal with the stochasticity and intermittence of non-dispatchable renewable resources including ideal and generic energy storage devices. Firstly, we present a mathematical definition of an ideal and generic storage device. This storage device definition has some mathematical advantages: 1) it can be easily integrated within complex optimization problems, 2) it can be modeled using linear programming, suitable for practical large-scale cases. Secondly, a stochastic unit commitment with ideal and generic storage devices and intermittent generation is proposed to solve the joint energy-and-reserves scheduling and real-time power balance problem, reflecting the minute-by-minute intermittent changes and the stochasticity of renewable resources. We also compare our results with those obtained using a deterministic unit commitment with perfect information. The proposed model is illustrated with a 24-bus system.
193 citations
TL;DR: Investigation of different researches shows that the control of ESSs has an effective role in different aspects of MGs such as stability, economic, etc.
160 citations
16 Jun 2010
TL;DR: A dynamic economic dispatch method to find the optimal control strategy for the microgrid system in finite time period is proposed and an example of microgrid results are compared, and the comparison confirms the effectiveness of the proposed dynamic dispatch method.
Abstract: Microgrids integrate distributed renewable energy resources, controllable loads and energy storage in a more economic and reliable fashion. Battery energy storage units are essential for microgrid operation, which make microgird become a strong coupling system in the time domain. Hence, the traditional methods of static dispatch are no longer suitable for microgrids. This paper proposes a dynamic economic dispatch method. Considering microgrid as a discrete time system, the dynamic economic dispatch is to find the optimal control strategy for the system in finite time period. Based on this idea, the dynamic economic dispatch model for microgrids is established, and then the corresponding dynamic programming algorithm is designed. Finally, an example of microgrid is given, and the dynamic economic dispatch results are compared with that of the static dispatch. The comparison confirms the effectiveness of the proposed dynamic dispatch method.
123 citations
TL;DR: In this paper, the authors reviewed and categorised various primary control methods that have been introduced to control the voltage and frequency of inverter-based microgrids and compared their potential advantages and disadvantages.
Abstract: Microgrid (MG) is a relatively new concept for the integration of distributed generation (DG) along with the loads in a distribution system. Islanded microgrid can be considered as a weak grid that has less inertia compared with the conventional power system. This reality makes the microgrid vulnerable to contingencies. Towards a flexible, safe and secure operation of an islanded MG, researchers have introduced a hierarchical control structure comprising tertiary, secondary and primary control. The primary control plays an important role in maintaining the voltage and frequency stability by sharing the loads among the DGs. This paper reviews and categorizes various primary control methods that have been introduced to control the voltage and frequency of inverter-based microgrids. Moreover, the reviewed methods in terms of their potential advantages and disadvantages are compared. Finally, the future trends are presented.
87 citations
TL;DR: In this article, the authors proposed a real-time economic dispatch approach considering the variability of solar, wind and load demand for a scheduling period, where voltage, reactive power limit and line flow constraints are included for all minute-tominute sub-intervals.
79 citations