Nuevo modelo para la expansión de sistemas eléctricos de distribución con generación distribuida considerando un planeamiento multi-etapa coordinado

Abstract

Este artículo presenta un nuevo modelo para la expansión de sistemas eléctricos de distribución con penetración de generación distribuida, considerando un planeamiento multi-etapa coordinado. El problema se formuló como un modelo de programación no lineal entero mixto y se solucionó empleando un algoritmo de búsqueda tabú. Para cada etapa del horizonte de planeamiento se consideró la instalación de nuevos elementos (alimentadores, subestaciones y generadores distribuidos), aumento de la capacidad de elementos existentes (alimentadores y subestaciones) y costos operativos asociados a las pérdidas técnicas de energía en alimentadores. Los resultados obtenidos validan la metodología propuesta al encontrar menores costos frente a dos escenarios de la literatura: planeamiento multietapa no coordinado y coordinado (ambos sin generación distribuida). Descriptores: algoritmo búsqueda tabú, generación distribuida, planeamiento multi-etapa no coordinado y coordinado, sistemas eléctricos de distribución.

Multistage Planning Model with Photovoltaic Distributed Generation in Low Voltage Networks of Rural Electrical Systems

“…Thus, after analyzing the technical aspects, the best option is alternative 1, which considers photovoltaic distributed generation as part of the solution with investment costs of US$ 134,120.47, NPV of 678,519.07 and IRR of 50.86%, which indicate that alternative 1 is economically profitable and viable. The results obtained are consistent with those obtained by [10] and [9], who obtain lower costs with the incorporation of distributed generators, among other elements, compared to other alternatives. As any new technology is subject to economic incentives, [18], [19], [20] and [21] propose different subsidy models for the incorporation of photovoltaic distributed generation.…”

“…and that guarantees the continuity of the electrical energy service, so regarding to planning with distributed generation, [3] it was developed a methodology for the massification of photovoltaic distributed generation in low voltage networks, evaluating the impact on voltage profiles, losses and conductor chargeability, in the case of [ 4] it was developed the planning of electrical distribution networks with distributed generation, another aspect that must be taken into account is the impact of distributed generation on the distribution system [5], it is also important to evaluate the viability and coverage of implement photovoltaic distributed generation and how it is done [6], in all this it is important to develop proposals for regulatory guidelines for photovoltaic distributed generation as it is suggested [7]. Other technical aspects to take into account, [8] which highlights the location points of the distributed generation, duly weighted according to their load magnitude in order to determine the probability distribution of best fit, in that same line [9] it proposes an algorithm based on a set of criteria to evaluate different distributed generation options in rural Bhutan, [10]which developed a mixed integer nonlinear programming model in the search for multistage planning to optimize costs, [11], it performs a quasi-analysis. dynamic of a local distribution system with distributed generation modifying the 13-node IEEE system, [12],it uses a multi-objective search algorithm evaluating the capacity of the existing system and performs the demand projection for the next 10 years, [13] that presents distribution expansion planning model with multi-stage distributed generation, [14], that uses a stochastic multi-objective optimization model for the planning of hybrid AC-DC intelligent distribution systems, [15] it develops a two-level planning model of the distribution system with an economic risk-based approach, [16]it presents a comprehensive long-term distribution planning framework from the perspective of local distribution companies and , [17]analyzes the release of network capacity and calculation of incremental addition of distributed generation for planning the distribution system, finally [18], [19], [20], [21],it is proposed various subsidy models for the incorporation of renewable energies, mainly photovoltaic, it is important when a new technology is incorporated into the system.…”