Optimized dispatching device and method of fuel gas type CCHP (combined cooling heating and power) system
A combined cooling, heating and power supply and optimal dispatching technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as energy consumption and pollution emissions that are not considered
Inactive Publication Date: 2014-02-19
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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[0008] Aiming at the shortcomings mentioned in the above background technology that the dispatching strategy of the existing combined cooling, heating and power system does not consider energy consumption and pollution emissions, the present invention proposes an optimal dispatching device and method for a gas-type combined cooling, heating and power system
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[0187] Example: Analyze a set of cogeneration system model that provides cold, heat, and electricity loads for a hotel in Beijing. The hotel has three floors with a total construction area of 4,050 square meters. The first floor contains 300 square meters of restaurant and 1,050 square meters of office space. The second and third floors are both 1,350 square meters of guest rooms. The glass curtain wall area accounts for the total wall area. 40%, the heat transfer coefficient is 4.20 watts / (square meter·Kelvin scale), the heat transfer coefficient of outer wall is 0.438 watts / (square meter·Kelvin scale), the heat transfer coefficient of inner wall is 0.72 watts / (square meter) ·Kelvin temperature scale), floor heat transfer coefficient 2.929 watts / (square meter·Kelvin temperature scale), roof heat transfer coefficient 0.372 watts / (square meter·Kelvin temperature scale). The parameters and energy prices of the corresponding combined cooling, heating and power system are: gas tu...
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The invention discloses an optimized dispatching device and method of a fuel gas type CCHP (combined cooling heating and power) system, belonging to the technical field of equipment optimized operation. The device disclosed by the invention comprises a human-computer interface, a data acquisition and management device, a comprehensive performance calculating device and an operation mode selector, wherein the data acquisition and management device is used for acquiring, storing and managing the operation data of the CCHP system; the human-computer interface is used for manually inputting data and displaying calculated performance parameters; the comprehensive performance calculating device is used for calculating all performance parameters in a mode of determining heat with electricity and a mode of determining electricity with heat; and the operation mode selector is used for determining an optimal operation mode according to the operation data and performance parameters, and returning to an operation control loop of the CCHP system. By using the device and method disclosed by the invention, the CCHP system can be dispatched to work in an optimal operation mode, the energy consumption and greenhouse gas emission are reduced, the operation cost is lowered, and the comprehensive operation performance of the system is improved.
Description
Technical field [0001] The invention belongs to the technical field of equipment optimized operation, and in particular relates to an optimized dispatching device and method of a gas-fired combined cooling, heating and power system. Background technique [0002] The gas-fired combined cooling, heating and power system uses natural gas as the main fuel (other combustible gases such as coal gas, biogas or oil and gas can also be used), which integrates gas turbines, generators, heat recovery and refrigeration devices into a whole, and manages refrigeration and supply through unified management. In the heat and power supply process, the cascade utilization of energy is realized, thereby achieving the purpose of improving energy utilization efficiency and reducing pollutant emissions. According to data, the fuel utilization efficiency of the combined cooling, heating and power system can reach 70% to 90%, which is significantly better than traditional coal-fired units. [0003] Howeve...
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IPC IPC(8): G05B13/00
Inventor 房方王庆华董玉亮刘吉臻
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)