Control method for optimizing solar-to-power efficiency of solar-aided coal-fired power system under off-design working conditions
US11396827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2021 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jan 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control method for optimizing a solar-to-power efficiency of a solar-aided coal-fired power system under off-design working conditions is provided. Through reading the relevant information of the solar collecting system, the coal-fired power generation system, the environmental conditions, and the working conditions of the solar-aided coal-fired power system, the water flow rate range able to be heated by the solar collecting unit and the solar-coal feedwater flow distribution ratio range are determined; through establishing the relationship between the solar-to-power efficiency and the solar-coal feedwater flow distribution ratio, the solar-coal feedwater flow distribution ratio is regulated, so that a flow rate of water entering the solar collecting system to be heated is controlled, thereby maximizing the solar-to-power efficiency and improving the economy of the solar-aided coal-fired power system. The present invention provides clear guidance to improve the utilization rate of solar energy and facilitate the consumption of the renewable energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.