Solar compensation type electric boiler heat supply control method based on valley electricity price change
A control method and solar energy technology, applied in heating methods, household heating, heating systems, etc., can solve problems such as real-time fluctuations in valley electricity prices
Inactive Publication Date: 2018-03-09
HANGZHOU POWER SUPPLY COMPANY OF STATE GRID ZHENGJIANG ELECTRIC POWER +4
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Problems solved by technology
[0004] At present, electricity prices are only divided into two prices: peak and valley electricity prices. With the electricity reform and bidding online, there may be real-time fluctuations in valley electricity prices in the future.
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[0057] In the following, the present invention will be further clarified with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various aspects of the present invention. The modification of the price form falls within the scope defined by the appended claims of this application.
[0058] The heating control method of the solar-powered electric boiler based on the price change of the valley electricity of the present invention uses a predictive control method to set a feedforward compensation loop to control the user temperature and the system power consumption price. At the same time, it can effectively deal with the large delay characteristics of the object, and improve the anti-disturbance ability of the heating system to solar parameters. Th...
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The invention discloses a solar compensation type electric boiler heat supply control method based on valley electricity price change. The method comprises the steps as follows: a valley electricity forecast step: the valley electricity price change is forecasted with a valley electricity price forecast method based on a time sequence; a valley electricity price forecast correction step: error correction is performed on the forecast electricity price obtained in the valley electricity price forecast step; a compensation step: the fluctuation influence of the valley electricity price obtained after the forecast step is eliminated; an object control step: the output in the compensation step and the output in the valley electricity price forecast correction step are used as input, and controlregulation is performed on a great-inertia heat supply load system through prediction control. Compared with the prior art, the method has the advantages that load control is performed on a solar compensation type electric boiler system based on economic indexes through DMC prediction control, and the effects of valley electricity price fluctuation on the economy of the heat supply system are eliminated by designing a feed-forward compensation loop. The method has better control effects and certain disturbance resistance, and the economic benefits are increased effectively.
Description
Technical field [0001] The invention relates to a solar energy compensation type electric boiler heating control method based on changes in the price of valley electricity, and belongs to the field of thermal engineering control. Background technique [0002] The heating industry is closely related to people's daily life. Considering the increasing air pollution, clean heating technology is very necessary. Solar energy is clean and pollution-free, but it is unstable due to factors such as season and climate. Electric boilers have no emissions and no pollution to the environment, but consume a lot of electricity. Therefore, it is necessary to combine solar energy and electric boilers for joint heating research. [0003] In order to stabilize the temperature on the heating user side, it is necessary to control the solar-powered electric boiler combined heating system. At present, most of the heating system temperature control systems still use conventional PID (Proportional-Integra...
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Login to View More IPC IPC(8): G06F17/16G06Q10/04F24D19/10
CPCF24D19/10G06F17/16G06Q10/04Y02B10/20Y02B10/70
Inventor 沙鹏王硕刘西陲沈炯张俊礼徐昱徐君沈百强张如通
Owner HANGZHOU POWER SUPPLY COMPANY OF STATE GRID ZHENGJIANG ELECTRIC POWER