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In this study, we determine the suitable method and timing for the renewal of the voltage control method using voltage control performance evaluated by the maximum photovoltaic (PV) installation rate possible without voltage deviation. The voltage control method is renewed when the voltage of a distribution system deviates with an existing voltage control method. We determine the most suitable voltage...
This paper presents a coordinated control method for central and local battery energy storage systems to control voltage of a middle-voltage 6.6 KV photovoltaic-supplied microgrid. Each local battery storage system minimizes the active power flow through the feeder bus it is installed on. A central battery energy storage system minimizes power flow from the utility to the microgrid through the interconnection...
Developments in inverter technology are resulting in distributed generation units built as a combination of a renewable source or energy storage device and an inverter, and such units are increasingly being used in micro-grids. One advantage of this combination is quick power response, allowing for complex control solutions. This paper presents a control method for battery energy storage systems which...
Installation zero-emission power sources, including photovoltaic power systems (PV), is necessary to cut greenhouse gasses to reduce global warming. In Japan, the target capacity for installed PV in 2020 has been set at 28 GW, which is 20 times the 2005 capacity. PV should be installed in 70 percent of new houses to reach this target. The PV output (active power) must be suppressed to sustain adequate...
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