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3536results about How to "Save fuel" patented technology

Ship intelligent energy efficiency management system

ActiveCN107563576AScientific and effective energy efficiency managementReduce energy consumptionForecastingTechnology managementEconomic benefitsEngineering
A ship intelligent energy efficiency management system includes a basic function module and an advanced function module. The basic function module is used for monitoring and evaluation on energy consumption and energy efficiency; through automatic collection and online monitoring of ship navigational status and energy consumption condition data, by applying data correlation analysis and a data model algorithm, analysis, evaluation and predication are performed on ship energy consumption, energy efficiency and discharge, so that data evaluation and analysis results and assisting decision suggestions are provided for ship operation managers and intelligent energy efficiency management basic functions of ship energy efficiency real time monitoring, intelligent evaluation and optimization andcomprehensive report generation are implemented. The advanced function module is used for navigational speed optimization and establishing of a ship energy efficiency analysis model and a navigationalspeed optimization analysis model, so that the navigational speed optimization function based on voyage number plan and economic benefit is implemented. Real time evaluation is performed based on data collected in real time. Ship operation condition is regulated based on energy efficiency improvement on the basis of actual data, so that ship energy efficiency management becomes more scientific and effective.
Owner:中船重工信息科技有限公司

Starting power generation system for electric automobile

The invention discloses a starting power generation system for an electric automobile, which comprises a double salient pole starting power generator, a starting power generation controller and controller working power; the starting power generation controller comprises a bidirectional power conversion circuit, an exciting current detection unit, an output current detection unit, an output voltage detection unit, a position rotation speed detection unit, an armature current detection unit, an exciting main circuit and a digital signal processor, wherein the exciting main circuit includes an exciting relay, a rectification filter unit and a chopper circuit which are connected in series in turn; and the digital signal processor is connected with the exciting current detection unit, the output current detection unit, the output voltage detection unit, the armature current detection unit, the position rotation speed detection unit, and the control ends of the bidirectional power conversion circuit, the exciting relay and the rectification filter unit by signals respectively. The invention also discloses an electric automobile and a control method thereof. Compared with the prior art, the starting power generation system is simple in structure, low in cost and flexible to control.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Method for testing electric secondary AC loop

The invention relates to an electric secondary AC circuit detection method which comprises the following steps: before a power plant machine set is started, a low-voltage short-circuit point or a short-circuit bogie is input; three-phase 380 V voltage is added at the high-voltage side of a booster station to form a circuit by means of the impedance of a transformer and a generator; current amplitude and phase are measured through a current detecting apparatus to check polarity and transformation ratio in advance; all current protective directions such as generator differential motion are measured. When a neutral point is not connected, a short-circuit point is made at a high plant transformer low-voltage side, and the three-phase 380 V voltage is added at the neutral point of the generator, thereby realizing overall checkup of a generator AC circuit; then, the three-phase 380 V voltage is converted into one-phase voltage or two-phase voltage to carry out overall checkup of a zero sequence circuit. The detection method can check all CT and PT circuits of a generation-transformer group before power transmission; moreover, all protection directions of the generation-transformer group are checked in advance, thereby saving time and fuel oil along with economical efficiency, environmental protection and safety. The electric secondary AC circuit detection method can check secondary circuits such as the transformer and the bus differential protection of a transformer substation.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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