Energy management device for solar assisted ocean thermal gradient power generation system

An energy management device and a technology for thermoelectric power generation, which are used in solar thermal power generation, solar heating systems, ocean energy power generation, etc., can solve the problems of difficulty in further deepening the extraction depth of cold sea water, no large-scale commercial application, and low thermal cycle efficiency. To achieve the effect of enhancing human-computer interaction and control performance, improving control effect, powerful work efficiency and performance

Active Publication Date: 2020-08-04
WUHAN UNIV OF TECH
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  • Abstract
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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

Method used

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  • Energy management device for solar assisted ocean thermal gradient power generation system
  • Energy management device for solar assisted ocean thermal gradient power generation system
  • Energy management device for solar assisted ocean thermal gradient power generation system

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Embodiment Construction

[0030] In order to further understand the content, features and effects of the present invention, the following examples are listed hereby, and understood with the accompanying drawings. The specific examples described here are only used to explain the present invention, and are not intended to limit the present invention.

[0031] Such as figure 2 As shown, an energy management device for a solar-assisted ocean temperature difference power generation system includes an irradiance sensor (or irradiance sensor), a temperature sensor, a flow sensor (or a liquid flow sensor), an analog unit (signal Acquisition unit), PLC control system (PLC control unit, PLC control circuit), human-machine interface and host computer; the irradiance sensor is installed on the column (the column can be installed on the support frame of the solar collector); the temperature sensor Including the hot water temperature sensor and the working fluid temperature sensor at the outlet of the evaporator, t...

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Abstract

The invention relates to the technical field of energy usage and control, in particular to an energy management device for a solar assisted ocean thermal gradient power generation system. The energy management device is characterized by comprising an irradiance sensor, a temperature sensor, a flow sensor, an analog quantity unit, a PLC control system, a human-computer interface and an upper computer, wherein the analog quantity unit collects signals such as radiation intensity, heat storage water temperature, working medium temperature at an evaporator outlet, etc. and outputs the signals; andthe PLC control system is combined with the collected signals and uses a fuzzy PID control algorithm to output a control signal to adjust the speed of a warm seawater pump, a heat storage water pump,a cold seawater pump and a working medium pump and the opening of a bypass valve of a three-way valve, and control the flow of warm seawater, the flow of conduction oil, the flow of heat storage water, the flow of cold seawater and the flow of a working medium under corresponding working conditions of the solar assisted ocean thermal gradient power generation system, the working state of the power generation system is automatically adjusted, and thus all-weather efficient power generation is realized. The energy management device can adjust an equipment state according to load needs and the change of an external environment, so as to maintain the stable power generation efficiency and facilitate management personnel to control and monitor.

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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G6/06F03G7/05F01D15/10F01K25/10F01K11/02F01D25/18F04B49/06F04B49/20F24S10/30F24S60/30G05B19/05
CPCF01D15/10F01D25/18F01K11/02F01K25/106F03G6/06F03G7/05F04B49/065F04B49/20F24S10/30F24S60/30G05B19/05Y02E10/30Y02E10/44Y02E10/46
Inventor 汤旭晶窦立涛高双印王锡涵徐华徽高百川李灏高一博
Owner WUHAN UNIV OF TECH
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