The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The increased deployment of Distributed Energy Resources (DER) and their connection to the existing distribution networks influences the feeder voltage profiles and challenges the voltage control in distribution networks. Traditionally, On-Load Tap Changing (OLTC) transformers are the most common voltage control devices. In this paper, the problem of voltage rise mitigation in distribution networks...
Future power distribution systems are expected to have large number of scale smart measuring devices and distributed generation (DG) units which would require real-time network management. Integration of single-phase DG and advanced metering infrastructure (AMI) technologies will add further complexity to the power distribution system which is inherently unbalanced. In order to alleviate the negative...
We propose two optimization-based models for computing the allowable penetration level of multiple distributed generators, taking into account voltage regulation constraints. A single level optimization model is developed for computing the maximum penetration level, while a bi-level optimization model is developed to answer the question as to at least how much power a distribution system can accommodate...
The optimal control strategy for autonomous micro-grids proposed in this paper highlights the possibility to minimize the overall micro-grid operating cost, minimizing at the same time the pollutants emissions and assuming that all the power made available by the renewable generators (photovoltaic and wind systems) and the storage systems is injected into the micro-grid. The proposed procedure is...
Microgrids usually have limited power generation capacity, and are networked together to meet the small area's load demand in a cooperative way. This paper considers using an event-triggered distributed optimization algorithm to solve the optimal power flow (OPF) problem in microgrids. Under event-triggering, each subsystem broadcasts its state to its neighbors when a local error signal exceeds a...
Distribution networks paradigm is changing currently requiring improved methodologies and tools for network analysis and planning. A relevant issue is analyzing the impact of the distributed generation penetration in passive networks considering different operation scenarios. Studying DG optimal siting and sizing the planner can identify the network behavior in presence of DG. Many approaches for...
Recent developments of distribution systems take advantages of new technical issues and networks equipments such as: DG (distributed generation), smart grids, smart metering, etc. The aim of the paper is to propose an approach for load/generation control in distribution grid based on the solution of an OPF (optimal power flow). The OPF dispatch local generation (DG), power injected by feeders and...
The ever growing connection of different types of Distributed Generation (DG) in electrical distribution networks makes the issue of regulation and co-ordination more stringent. In this paper, an iterative procedure is presented to manage storages and distributed multi-generation devices. The operational optimisation is focused on providing, at minimum overall production cost, electric and thermal...
This paper presents a non-linear, constrained optimisation problem whose solution is used to optimally dispatch dispersed generators connected to a MV distribution network where an advanced voltage regulation system is implemented in order to allow a higher penetration of dispersed generation (DG) with respect to traditional procedures. In this context, DG active and reactive power output control...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.