• home
  • PUBLICATION
  • International Journal

International Journal

Accuracy Improvement Method of Energy Storage Utilization with DC Voltage Estimation in Large‐Scale Photovoltaic Power Plants
Year of publication 2019
Title of paper Accuracy Improvement Method of Energy Storage Utilization with DC Voltage Estimation in Large‐Scale Photovoltaic Power Plants
Author Yeuntae Yoo, Gilsoo Jang, Jeong‐Hwan Kim, Iseul Nam, Minhan Yoon, and Seungmin Jung
Journal Energies
Keyword PV diagnosis, ESS application, DC power flow, DC system dynamics, hybrid generation system
In regard to electric devices, currently designed large‐scale distributed generation systems require a precise prediction strategy based on the composition of internal component owing to an environmental fluctuating condition and forecasted power variation. A number of renewable resources, such as solar or marine based energies, are made up of a low voltage direct current (DC) network. In addition to actively considering a power compensation plan, these generation systems have negative effects, which can be induced to a connected power system. When a storage is connected to a DC‐based generation system on an inner network along with other generators, a precise state analysis plan should back the utilization process. This paper presents a cooperative operating condition, consisting of the shared DC section, which includes photovoltaic (PVs) and
energy storage devices. An active storage management plan with voltage‐expectation is introduced and compared via a commercialized electro‐magnetic transient simulation tool with designed environmental conditions. Owing to their complexity, the case studies were sequentially advanced by dividing state analysis verification and storage device operation.