Energy switching device and method

Abstract

The invention discloses an energy switching device and an energy switching method. The energy switching device comprises at least one switching control micro-processing module, a plurality of electricity switching control modules, and a plurality of power source conversion modules, wherein the switching control micro-processing modules enable city power electric charge rate and electricity generating ampere and fuel cost of a fuel cell to be input respectively to compute a power optimum switching mode between the electricity generating electric charge of the fuel cell and the fuel cost of the fuel cell through comparison, the plurality of electricity switching control modules are respectively connected with the switching control micro-processing module, the fuel cell, a city power source, the power source conversion modules, at least one electricity storage chamber and an indoor distribution box, through an economic dispatch method of optimum energy switching of the switching control micro-processing module, city power or electricity of the fuel cell is switched to supply electricity to the electricity storage chamber and the indoor distribution box through the power source conversion modules or extra electricity is recovered to be sold to an electric power company through an intelligent electricity meter and an intelligent power grid of the electric power company.

Description

technical field [0001] The invention relates to an energy switching device and method, in particular to automatically compare the energy rates between the AC mains power supply and the fuel cell, and switch the use of electric energy and the recycling of excess electric power between the two in an economical dispatching manner. Background technique [0002] At present, clean energy has become an issue and focus of more and more attention, especially nuclear power generation, which used to be known as one of the clean and low-consumption energy sources. After the endless nuclear energy safety issues have been exposed one by one, and, Under the unfavorable factors that affect the cost of thermal power generation due to rising international oil prices and coal prices, what needs to be considered at present is the use of truly safe, clean and cheap energy, and these clean energy sources are: wind power (wind power), solar cells (solar) cell) power generation, geothermal power ge...

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Problems solved by technology

[0008] In terms of relevant previous patent technical documents, such as the new patent case of Taiwan Patent Publication No. M400153 "Integrated Renewable Energy and Indoor Energy-Saving Power Supply Device", although it discloses the first power supply terminal of renewable energy containing fuel cells and the AC mains power supply The automatic switching energy-saving device between the second power supply terminal, but the principle of the switch is based on the power supply situation of the first power supply terminal and the second power supply terminal, that is, when the power of the first power supply terminal is interrupted or insufficient, the power of the second power supply terminal is turned on. Electricity, but this method is only the practice of using the second power supply terminal as a backup power source. In fact, it does not solve the problems and shortcomings of the economic dispatch and use of the fuel energy cost adjustment at any time when the fuel cell power generation is put into power generation operation. Power users have no way to obtain cheap and efficient power supply performance, and for power companies, there is no goal of reducing the burden on power generation equipment and power economic dispatch

[0009] In addition, the new patent case of Taiwan Patent Publication No. M384329 "Automatic Power Control System that Can Suppress Power Consumption Peaks" discloses the use of automatic power switch to switch between renewable energy and mains power during peak and off-peak times Scheduling, at best, is the same as the previous patent case. It is only a partial power saving method, and it does not solve the problems and shortcomings of economical dispatching of fuel energy costs when renewable energy generated by fuel cells is put into power generation. Power users have no way to get Inexpensive and efficient power supply performance

[0010] In addition, China Taiwan Patent Publication No. I333726 "Fuel Cell Charging Module" invention patent case discloses the fuel cell charging and power supply module, but it does not solve the economic dispatch of fuel energy costs when the fuel cell is used, and It can only be used as an experimental charging and power supply module, and there is still a considerable distance for the actual application of fuel cell power generation as a part of the power supply system in homes or communities.

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