Benefit assessment of energy storage for distribution network voltage regulation

Abstract

The paper describes some results of a preliminary analysis of a pilot project for the exploitation of energy storage devices on the distribution system. The storage has been used for load levelling and voltage support and its performances have been obtained with software simulations based on real data. Emphasis has been placed on the importance of the optimal sizing and siting of the storage device.

Multi-Criteria Analysis for decision making applied to active distribution network planning

“…The devised planning options involve lines and substations upgrading (as traditional network solutions) and DES siting, sizing, and management (as no-network solution). Amongst the non-network planning solutions, DESs optimally allocated can provide to the Distribution System Operator (DSO) numerous technical and economic benefits such as voltage support, losses reductions, enhanced reliability and quality of service, improved hosting capacity, deferral of network investments, and OPEX reduction [24]. Those benefits are not mutually exclusive because a single storage device can be used to offer different services [24].…”

“…Amongst the non-network planning solutions, DESs optimally allocated can provide to the Distribution System Operator (DSO) numerous technical and economic benefits such as voltage support, losses reductions, enhanced reliability and quality of service, improved hosting capacity, deferral of network investments, and OPEX reduction [24]. Those benefits are not mutually exclusive because a single storage device can be used to offer different services [24]. Therefore, to understand the multiplicity of benefits, it is obvious to analyse DESs planning alternatives trough a multi-criteria methodology.…”

Distribution energy storage investment prioritization with a real coded multi-objective Genetic Algorithm

“…Thus, the ESSs have been represented in the PLF equations with a negative linear dependence on respect to the other customers. By so doing, the standard deviations introduced by the ESSs tends to reduce the standard deviations of the nodal voltages in the feeder where the storage is installed, improving the regulation, reducing the risk of constraint violation and, indirectly, increasing the hosting capacity of the distribution system [23].…”

New electricity distribution network planning approaches for integrating renewable

“…Several different planning studies can be performed that involve the integration of RES in the power distribution system . In general, they can be grouped into two optimization categories (involving two distinct planning tools): the network expansion over a planning period and the allocation of DERs.…”

“…and the optimal allocation DG. The usefulness of the first kind of applications is clear and, especially for DES, it has been gaining growing attention in the past years . The usefulness of the second type of application is more questionable because of the widely adopted prohibition for distribution companies to own generators.…”