This paper deals with a cooperative strategy, based on the conservative power theory decomposition, which can be applied to control the inverters used to connect the distributed energy resources in a three-phase microgrid.In addition to inject/absorb active power at their point of connection, these inverters are operated according to their available power capability so as to enhance the power quality at the point of common coupling to the main network.Simulation results are shown considering, as an example, a three-phase three-wire microgrid equipped with two inverters, together with unbalanced and nonlinear loads.Among the different analyzed situations, the possibility to supply reactive power at the point of common coupling is shown with a view to provide voltage support, which is an asset in the framework of smart distribution networks.

In this paper, a tool for the long-term (LT) planning, i.e., up to 20 years, of industrial microgrids (IMGs) connected to the distribution network and made of industrial consumers, prosumers, and of the distribution system operator (DSO), is proposed. The DSO assumes here the new role of microgrid energy manager. In order to realize the proper choice of LT investments (e.g., in renewable energy system and energy storage system), a short-term (ST) energy management is performed each day of the planning period. For that purpose, a new system of daily operation including industrial load management and allowing peer-to-microgrid as well as external energy exchanges is implemented. The LT investments and ST operational decisions are coupled via two game theoretical frameworks, which also allow the modeling of the different, even conflicting, objectives of the stakeholders. Different LT and ST pricing schemes are also considered in order to provide general advices concerning the creation of new IMGs. The developed tool is tested on a virtual IMG and the technical and economical outputs are presented.

This study deals with the long-term planning of industrial microgrids (MGs) in order to decrease the electricity bill (compared with the current situation) for participating companies. In such industrial MGs, the distribution system operator, the industrial estate operator and prosumers' objectives, which can be conflicting, need to be taken into account at the same time. The planning problem is formulated as a multi-agent and multi-objective problem which is solved by computing a Nash equilibrium of an extensive game from game theory. Different time horizons of the decision process are taken into account. In this study, the planning tool principle is presented and some applications are provided.

This paper deals with a short-term (i.e. daily) operational management tool for industrial companies included in an industrial microgrid framework. A peer-to-microgrid system is proposed in order to take advantage at best of the local renewable energy generation and/or to decrease the electricity bill of the prosumers/consumers. Moreover, load management is considered as a possible way to improve the microgrid operation. The choice to apply load management (or not) is done by a game theoretical approach, including the DSO who is also the microgrid manager, besides the prosumers and the consumers. The benefits of load management and the application of the daily game theoretical framework are illustrated in this paper.

This paper deals with a methodology to cooperatively handle the power quality issues in a multiple-inverter-based micro-grid with communication. The micro-grid operates in the grid-connected mode, being partially supplied from the main network. The conservative power theory decomposition is used to deal with both the power enhancement and renewable power integration functions. A central controller manages the micro-grid operation by providing set-points to the local controllers of the inverters used to interface the renewable energy sources. Each set-point consist of two parts: one is used to compensate the power quality issues at the point of common coupling and the other corresponds to the active power/reactive energy references. Simulation results are shown considering, as an example, a three-phase three-wire micro-grid equipped with two inverters, together with unbalanced and nonlinear loads. Among the different analyzed situations, the possibility to supply reactive power at the point of common coupling is shown with a view to provide voltage support, which is an asset in the framework of smart distribution networks.