Thermoelectric co-scheduling system and method considering user difference and building thermal inertia

Abstract

The invention discloses a cogeneration system and method considering user difference and building thermal inertia. The method comprises a cogeneration unit and a photovoltaic generator unit which areconnected through a power cable network; the user heat consumption unit is connected with the combined heat and power generation unit; the energy storage device is used for storing heat at the sourceend; the first remote centralized controller and the second remote centralized controller are respectively used for controlling and managing the combined heat and power generation unit and the photovoltaic power generation unit; and the third remote centralized controller is used for controlling and managing the user heat consumption unit. According to the invention, the user load difference is considered in the scheduling system; different scheduling control is carried out according to users with different conditions, system control precision is improved, building thermal inertia is fully considered to excavate user load difference and potential electric power adjusting capacity which can be provided, combined heat and power generation flexibility is improved, renewable energy consumptioncapacity is improved, and heat supply energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of power system analysis, in particular to a method and system for coordinating heat and power dispatching in consideration of user differences and building thermal inertia. Background technique [0002] With the rapid development of the economy, the depletion of primary energy, and the increasingly prominent environmental pollution, green renewable energy has attracted more and more attention from all countries. The installed capacity and grid-connected scale of wind power in my country are increasing year by year, but at the same time, they are also facing serious wind curtailment. Relevant studies have shown that the windy period in my country's three northern regions coincides with the peak heating period, and the sharp decline in system peak-shaving capacity of thermal power plants due to heating during the heating period is a major cause of wind curtailment. [0003] The traditional operation mode of ...

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Problems solved by technology

[0003] The traditional operation mode of "heating to determine power" limits the adjustment range of the power output of cogeneration units, reduces the system's peak-shaving capability, and further reduces the system's ability to accept wind power resources, resulting in a large number of curtailed wind; at the same time, the existing The peak shaving system ignores the potential power adjustment capability provided by different user load differences based on building thermal inertia triggering, thereby improving the flexibility of combined heat and power and the absorptive capacity of renewable energy

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