Management of Generation and Redistribution Electric Power in Grid-Tied Photovoltaic System of Local Object

Abstract

Photovoltaic grid-connected system of local object with a battery when using a grid inverter with an "open" input is presented. The expediency of the structure of the converter unit use equipped by controllers of a photoelectric battery and battery with independent (external) control and the possibility of charging the battery from the grid is substantiated. It expands the possibilities of energy generation and distribution control in the power supply system of a local object with several tariff zones using an intelligent energy management system in all operating modes including autonomous. The structure of the power control channel is developed, while it is possible to use a standard MPPT controller to control the generation of a photovoltaic battery. The simulation model of the system is developed. The simulation results are given. References 9, figures 4.

Management of power consumption in a photovoltaic system with a storage battery connected to the network with multi-zone electricity pricing to supply the local facility own needs

“…At the same time, the introduction of such systems should ensure a reduction in the cost of paying for electricity consumption from the DN, especially taking into account the constant growth of tariffs. It is promising to use a PVS with a SB when connected to DN with multi-zone tariffication with the redistribution of energy between tariff zones [3][4][5].…”

“…The improvement of PVS in the conditions of multi-zone tariffication is associated with the binding of switching of operating modes to the hours of tariff zones, control of the energy supply from the PB and the SB charge. Here, it becomes possible to exclude energy consumption during peak loads [4,5], the discharge of the SB charged from the night (according to the night rate) in the morning hours until the morning peak is excluded, and the SB is charged until the evening peak.…”