4results about How to "High energy conversion rate" patented technology

This disclosure relates to an energy storage method and system based on carbon dioxide chemical conversion, comprising: capturing CO2 generated by a power generation module using a capture module; subjecting the CO2 from the capture module to plasma treatment with carbon materials in a CO2 decomposition module to produce CO-containing product gas; using the product gas for the synthesis of chemical products and / or fuels; or sending the product gas into the power generation module; and transmitting the electrical energy generated by the power generation module to the power grid and / or the CO2 decomposition module; wherein the carbon materials include one or more of biomass, biochar, activated carbon, hydrothermal carbon, and coal. The method of this disclosure converts carbon materials and CO2 into CO as a medium for storing grid electricity. When the grid requires electricity, the separated CO is used for ignition or power generation, providing fuel for the cold start of coal-fired power boilers, or enabling rapid start-up of coal-fired power boilers under low load. When the grid does not require electricity, the product gas is used for the synthesis of chemical products, thus playing a role in peak shaving and valley filling.

This application discloses a DAB converter and its driving control method. The method includes: obtaining the voltage transfer ratio based on the input voltage and output voltage of the DAB converter; obtaining the feedforward power based on the input voltage, voltage transfer ratio, and output current of the DAB converter; obtaining the primary-to-secondary side shift ratio based on the input voltage, output voltage, voltage transfer ratio, input current, and feedforward power of the DAB converter; obtaining the primary-side inward shift ratio and the secondary-side inward shift ratio based on the voltage transfer ratio, feedforward power, and the primary-to-secondary side shift ratio; and driving the DAB converter based on the primary-side inward shift ratio, the secondary-side inward shift ratio, and the primary-to-secondary side shift ratio. This invention optimizes the values ​​of the primary-side inward shift ratio, the secondary-side inward shift ratio, and the primary-to-secondary side shift ratio using relevant parameters of the DAB converter to achieve precise driving control of the DAB converter. By adjusting the control parameters of the DAB converter, the soft-switching range can be expanded, current stress reduced, and light-load efficiency improved, while significantly increasing the system's energy conversion rate.

The application relates to an energy recovery method, an energy recovery device, a vehicle controller and a vehicle. The method comprises the following steps: firstly, acquiring road condition information of a target vehicle on a preset future running section; then, determining an electric quantity cooperative recovery strategy of the target vehicle based on the road condition information and a current driving mode of the target vehicle; and finally, recovering energy when the target vehicle drives on the future running section according to the electric quantity cooperative recovery strategy. The method can recover energy through different electric quantity cooperative recovery strategies according to different road condition information and current driving modes, so that the adaptability of the target vehicle during energy recovery is higher, and the energy utilization rate of the target vehicle is improved, and the energy conversion rate is higher.

This invention discloses an application and equipment for hydrogen production via water electrolysis using a sheet-like molybdenum carbide catalyst, relating to the field of chemical technology. The equipment includes an electrolyzer with two electrode plates inserted inside. Each electrode plate has several diamond-shaped protrusions evenly distributed on its surface. The two electrode plates are positioned opposite each other as a cathode and anode. Multiple layers of mesh are arranged inside the electrolyzer near the two electrode plates. Through these structural optimizations, the current distribution and ion conduction paths are optimized, significantly improving the overall reaction efficiency and energy conversion rate for hydrogen production via electrolysis. This reduces the stress on the electrolyzer end plates and sealing structure, enhances the structural stability, sealing reliability, and durability of the equipment under long-term high-pressure operation, reduces maintenance requirements, significantly shortens equipment downtime for maintenance, lowers operating costs, and simultaneously ensures precision and airtightness after each assembly.