An energy management device for solar-assisted ocean thermoelectric power generation system

Abstract

The invention relates to the technical field of energy utilization control. An energy management device for a solar-assisted ocean temperature difference power generation system, characterized in that it includes an irradiance sensor, a temperature sensor, a flow sensor, an analog unit, a PLC control system, a man-machine interface and a host computer; the analog unit Gather the signal output of radiation intensity, hot water temperature, evaporator outlet working fluid temperature, etc., and the PLC control system uses the fuzzy PID control algorithm to output control signals in combination with the collected signals to adjust the warm sea water pump, heat storage water pump, and cold sea water pump , the speed of the working medium pump and the opening of the bypass valve of the three-way valve, the temperature seawater flow rate, the heat transfer oil flow rate, the stored hot water flow rate, the cold sea water flow rate and the working medium flow rate under the corresponding working conditions of the solar-assisted ocean thermoelectric power generation system. Control and automatically adjust the working status of the power generation system to achieve efficient power generation around the clock. The invention can timely adjust the state of the equipment according to the load requirement and the change of the external environment, so as to maintain a stable power generation efficiency and facilitate the control and monitoring of management personnel.

Description

technical field [0001] The invention relates to the technical field of energy utilization control, in particular to an energy management device used in a solar-assisted ocean temperature difference power generation system. Background technique [0002] Ocean temperature difference energy is a low-grade energy, and the main reason why there is no large-scale commercial application at present is the low thermal efficiency of the cycle. The most effective way to improve the cycle thermal efficiency of the OTEC system is to increase the temperature difference between cold and warm seawater. However, due to technical limitations, it is difficult to further deepen the extraction depth of cold seawater. How to efficiently use ocean temperature difference energy to promote the economic development of the South my country Sea region and solve the urgent demand for energy and power for national defense construction has become a problem that must be faced. Considering that areas with ...

AI Technical Summary

Problems solved by technology

[0002] Ocean temperature difference energy is a low-grade energy, and the main reason why there is no large-scale commercial application at present is the low thermal efficiency of the cycle

The most effective way to improve the cycle thermal efficiency of the OTEC system is to increase the temperature difference between cold and warm seawater, but due to technical limitations, it is difficult to further deepen the extraction depth of cold seawater

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