Voltage rise mitigation and low voltage ride through capabilities for grid-connected low voltage microgrids | IEEE Conference Publication | IEEE Xplore

Voltage rise mitigation and low voltage ride through capabilities for grid-connected low voltage microgrids


Abstract:

The total real power injected by distributed renewable energy sources (RES) in the low voltage (LV) grids can cause voltage rise effects during light load scenarios. Inte...Show More

Abstract:

The total real power injected by distributed renewable energy sources (RES) in the low voltage (LV) grids can cause voltage rise effects during light load scenarios. Integrating RES in microgrid architectures can result in improved power quality of the electrical grid, by avoiding the voltage rise effect from occurring and also by providing ancillary services to the grid. In this paper, a cascaded hierarchical architecture was proposed with the aim to regulate the voltage magnitude and reactive power at the point of common coupling (PCC) of the microgrid. This enables the microgrid to maximize the real power injected in the grid while avoiding the voltage rise effect. In addition, the hierarchical architecture can also support the LV grid during faults due to the added low voltage ride through capability of the microgrid.
Date of Conference: 11-14 September 2017
Date Added to IEEE Xplore: 09 November 2017
ISBN Information:
Conference Location: Warsaw, Poland

Introduction

Residential photovoltaic (PV) installations are typically designed to operate at unity power factor to maximize the active power delivered into the grid. This enables the residential customers to achieve the maximum economical benefit due to feed-in tariff based schemes present in various countries. However, renewable energy sources (RES) displace some of the centralized power generation plants in cases of high grid penetrations of RES.

References

References is not available for this document.