The multitudes of inverter-based distributed energy resources (DERs) can be envisioned as reactive power (var) devices (\textit{mini-SVCs}) that offer var flexibility at TSO-DSO interface. To facilitate this vision, a systematic methodology is proposed to derive an aggregated capability curve distribution system with DERs the substation level, analogous conventional bulk generator. Since such w...

The paper describes a resource allocation problem in a smartgrid application formulated and solved as a binary integer programming model. For handling power outages from the main distribution circuit, the intelligent agents in the smart grid have to utilize and negotiate with DER (distributed energy resource) agents that act on behalf of the local generators in the grid, to negotiate power supp...

Distribution grids across the world are undergoing profound changes due to advances in energy technologies. Electrification of transportation sector and integration Distributed Energy Resources (DERs), such as photo-voltaic panels storage devices , have gained substantial momentum, especially at grid edge. Transformation technological aspects could directly conflict with existing distribution u...

This paper proposes an online voltage control strategy of distributed energy resources (DERs), based on the projected Newton method (PNM), for unbalanced distribution networks. The optimal Volt/VAr (VVC) problem is formulated as optimization program, with goal maintaining profile across network by coordinating VAr outputs DERs. To overcome slow convergence rate conventional gradient-based metho...

Electrical Distribution Systems are extensively penetrated with Distributed Energy Resources (DERs) to cater the energy demands general perception that it enhances system's resilience. However, integration of DERs may adversely affect grid operation and system resilience due various factors like their intermittent availability, dynamics weather conditions, non-linearity, complexity, number mali...

in this paper, an attempt has been made to introduce a new control strategy including plug-in hybrid electric vehicle (phev) and diesel engine generator to control the voltage and frequency of autonomous microgrids. the proposed control strategy has multiple advantages over the recent control methods in microgrids. the proposed method applies the primary and secondary frequency control strategy...

This paper presents the state of the art research and application of microgrid in China, and then introduces the major concerns for the development of microgrid. The research related to microgrid in China arose around 2004, focused on the connection of distributed energy resources (DERs) to grid and its influence on distribution network, and then followed the microgrid concept of Consortium for...

Enhancing the spatio-temporal observability of distributed energy resources (DERs) is crucial for achieving secure and efficient operations in distribution grids. This paper puts forth a joint recovery framework residential loads by leveraging complimentary strengths heterogeneous measurements real time. The proposed integrates low-resolution smart meter data collected at every load node with f...