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With the continuous improvement of living standards in rural areas, household appliances and various types of production-oriented electrical equipment have been widely popularized. However, the development of power grids in some remote areas is relatively lagging behind, failing to meet the rapidly growing demand for electricity load. These areas are vast with sparse population, large power supply line radius, and commonly suffer from low terminal voltage, unstable voltage, failure to start moto

In this paper, an overall individual dc voltage (including high-voltage and low-voltage dc-link voltages) balance strategy is proposed for the electronic power transformer with separated dc-link topology. The strategy adjusts active powers flowing through the isolation and output stages in different power modules to enhance the dc voltage balance capability. Through the strategy, the high-voltage and low-voltage dc-links can be well balanced when unbalance occurs among different power modules

The penetration of power electronics into power generation and distribution systems has deepened in recent years, as prompted by the increasing use of renewable sources, the quest for higher performance in the control of power conversion, as well as the increasing influence of economic plans that necessitate power trading among different regions or clusters of power distribution. As a result of the increased use of power electronics for controlling power flows in power systems, interactions of p