In this paper, a strategy based on Genetic algorithm for optimal allocation of reactive power resources in distribution system with microgrid is presented. In the proposed approach uncertainty in power generation of renewable based DG is considered. The main objective is to allocate fixed and switched capacitors as reactive power resources for voltage control within the desired limits on a dist...

Connection of distributed generation (DG) units, energy storages, and new loads into low voltage (LV) grids leads to a constrained operation of the grids. Consequently, voltage limits violation and overloading of grid assets occur more frequently. To tackle these issues, distribution system operators (DSO) still employ traditional techniques in planning distribution grids to increase grid hosti...

in restructured power systems and in a wholesale power market, a distribution company as a market player intends to maximize its profit by utilizing its options. hence determining an optimal energy acquisition strategy for a distribution company is vital, for attaining to this goal. however an important challenge for determining these strategies is forecasting other competitors and generation c...

Rising penetration of photovoltaic (PV) power also poses several threats to electrical system which demands proper inverter control schemes be designed. One major issue is that as PV systems are inherently non-inertial in nature, they do not participate regulating voltage or reactive and hence become highly sensitive external disturbances. Any perturbation frequency may cause some serious conse...

The amount of integrated solar power generation capacity within the UK distribution networks is expected to continue to increase within the next few years. However, the grid has a fixed power transfer capacity, and to avoid the extra cost of power system upgrade or curtailment of renewable power, it would be necessary to store the surplus power from such nondispatchable renewable resources usin...

Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This paper presents a novel control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filt...

Low-voltage Microgrids can be valuable sources of ancillary services for the Distribution System Operators (DSOs). The aim of this paper was to study if and how multimicrogrids can contribute to Voltage Control (VC) in mediumvoltage distribution grids by means of reactive power generation and/or absorption. The hierarchical control strategy was proposed with the main focus on the tertiary contr...

Renewable energy sources (RES) are being increasingly connected in distribution system utilizing power electronic converters. This paper presents a novel control strategy for achieving maximum benefits from this grid interfacing inverters when installed in 3-phase 4wire distribution systems. The inverter is controlled to perform as multi-function device by incorporating active power filter func...