Abstract: A system and a control method of a mobile micro-grid are provided. The mobile micro-grid system includes a renewable energy source and a non-renewable energy source which are in a container. The control method includes supplying the renewable energy source as a primary power supply to an external load; and determining whether the electricity of the renewable energy source is sufficient. If the electricity of the renewable energy source is sufficient, then the renewable energy source provides electricity to the external load; if the electricity of the renewable energy source is not sufficient, then the renewable energy source and non-renewable energy source provide electricity to the external load. If an external power source, which is a renewable-energy-type power source, is connected to the mobile micro-grid system, then the renewable energy source and external power source work as the primary power supply.

Abstract: A micro grid stabilization device coupled to a DC bus and an AC bus in parallel is provided. A DC power generation apparatus provides power to the DC bus. An AC power generation apparatus provides power to the AC bus. A converter is coupled between the DC bus and the AC bus to transform the voltage of the DC bus and provide the transformed voltage to the AC bus. When the voltage of the DC bus or the AC bus is unstable, the micro grid stabilization device provides power to at least one of the DC bus and the AC bus to stabilize the power of the DC bus and the AC bus.

Abstract: A micro-grid operation system with smart energy management including a power supply system, three micro-grids and an energy management unit is provided. The power supply system generates three phase AC power sources. A first micro-grid receives a first-phase AC power source and is coupled to a first load. A second micro-grid receives a second-phase AC power source and is coupled to a second load. A third micro-grid receives a third-phase AC power source and is coupled to a third load. The energy management unit detects the first, second and third-phase AC power sources to generate a first control signal, a second control signal and a third control signal. The power supply system generates at least one of auxiliary power source to at least one of the first, second and third micro-grids according to the first, second and third control signals.

Abstract: An electrical energy supply system providing voltage to a load and including an external power group and a DC supply device is disclosed. The external power group provides an external voltage. The DC supply device includes a bus, a converting unit, a storage unit and a smart energy management system (SEMS). The bus receives the external voltage and is coupled to the load. The converting unit converts the external voltage into a converted voltage or converts a stored voltage to generate a converted result and provides the converted result to the bus. The storage unit stores the converted voltage or provides the stored voltage to the converting unit. The SEMS controls at least one of the converting unit, the external power group and the load according to at least one of the external voltage, a voltage level of the bus and a voltage level of the storage unit.

Abstract: A power supply system driving a load including a main power apparatus and a backup power apparatus is disclosed. The main power apparatus provides main power to the load according to city power. The backup power apparatus provides backup power to the load when the city power does not correspond to a first pre-determined condition and includes a recombination unit, a fuel cell unit, a transformation unit, and a control unit. The recombination unit recombines a methanol component to a hydrogen component. The fuel cell unit receives the hydrogen component to generate a first power. The transformation unit detects the city power and transforms the first power to generate the backup power. When the city power does not correspond to a first pre-determined condition, the control unit activates the reformer, the fuel cell unit, and the transformation unit to generate the backup power.

Abstract: A power controlling method for a power supplying system coupled to a load is disclosed. City energy is detected. It is determined whether the city energy corresponds to a first pre-determined condition. When the city energy corresponds to the first pre-determined condition, the city energy is transformed to generate a main power to the load. When the city energy does not correspond to the first pre-determined condition, a fuel cell unit is activated to provide a backup power to the load.