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A CCHP system selection method and system that simultaneously satisfy thermal and electric loads
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A load and thermoelectric technology, which is applied in the CCHP system selection method and system field, can solve the problems of unstable user load, low equipment utilization rate, energy waste, etc., and achieve the goal of improving equipment utilization rate, reducing energy waste, and strong versatility Effect
Active Publication Date: 2022-03-29
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology
These two basic design strategies are carried out on the premise of meeting the maximum demand of users, but the user load is unstable within a day, which leads to the mismatch of energy supply of the CCHP system, low equipment utilization, equipment downtime or the introduction of The phenomenon of separate production equipment reduces the operating efficiency of the CCHP system and causes energy waste
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Embodiment 1
[0067] CCHP system selection method for simultaneous satisfying thermal power load, such as figure 1 ,Specifically:
[0068] S1: According to the user's electric load feature parameter E L And use hot load feature parameter Q L And the power supply adjustment feature parameter E of gas turbine G And supply fever adjustment feature parameter Q G Determine the available model of gas turbine;
[0069] S2: Determine the range of gas turbines to satisfy the vehicle's thermoelectric load requirements;
[0070] S3: Determine the enable condition and minimum capacity of the generating equipment.
[0071] E L Sum L The calculation formula is:
[0072]
[0073]
[0074] Among them, L e，min For the user's most small load, L e，max Maximum electric load for users, L q，min Minimum heat load for users, L q，max For the maximum heat load required for users, users in summer, transition season and winter electricity range and residual heat load are shown in Table 1:
[0075] Table 1 User load pa...
Embodiment 2
[0106] A CCHP system selection system that corresponds to the thermoelectric load corresponding to the Example 1, including:
[0107] Electrothermal load calculation module for calculating the user's electric load feature parameter E L And use hot load feature parameter Q L The calculation formula is:
[0108]
[0109]
[0110] Among them, L e，min For the user's most small load, L e，max Maximum electric load for users, L q，min Minimum heat load for users, L q，max The maximum heat load required for the user;
[0111] Electrothermal power calculation module: a power supply adjustment feature parameter E for calculating gas turbine G And the short adjustment feature parameter QG, the calculation formula is:
[0112]
[0113]
[0114] Where g e，min Minimum power generation power of gas turbine, g e，max Maximum power generation power for gas turbines, g q，min Minimum heating power of gas turbine, g q，max Maximum heating power of gas turbine;
[0115] Available models; used to s...
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Abstract
The present invention relates to a CCHP system type selection method and system that simultaneously satisfy thermal and electrical loads. The CCHP system includes a gas turbine that can be adjusted for heat recovery, waste heat utilization equipment and production division equipment connected to the gas turbine. The method specifically includes: calculating the user Select the model of the gas turbine that satisfies the judgment conditions as the available model, and determine the available range of the number of sets n of the gas turbine of the available model And the minimum capacity of production equipment. Compared with the prior art, the present invention has the advantages of reducing the capacity of separate production equipment, reducing system energy consumption and strong versatility.
Description
Technical field [0001] The present invention relates to the field of distributed energy supply system, in particular, involving a CCHP system selection method and system that simultaneously meets the thermoelectric load. Background technique [0002] The CCHP system is also known as the hot and thermal electricity system, which is a major form of distributed energy supply system with natural gas-generated distributed hot and cold power supply systems. The system is powered by a gas turbine or a gas internal combustion engine, and then utilizes a safe heat utilization apparatus to provide a user's cooling, heat, and realizes an amount of cascade utilization. Reasonable matching allows the system to achieve high integrated utilization efficiency, wide application prospects, will be supplemented as centralized energy supply, which will be increasing in power generation. [0003] The distributed hot and hot electrical supply system also has many problems. When the system is initially...
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