Research on steady-state power distribution calculation technology of electrothermal coupled regional energy system

2018 2nd International Conference on Power and Energy Engineering

Shan, Jinning^1 ; Li, Zhenyu^1 ; Chen, Gang^1 ; Wang, Xin^1

State Grid Liaoning Electric Power Supply Co. Ltd, Fuxin Power Supply Company Fuxin, China^1

关键词: Electric coupling;    Peaking capacity;    Power equipment;    Prediction errors;    Regional energy systems;    Steady-state power;    Thermal equipments;    Thermal power units;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/192/1/012048/pdf
DOI  :  10.1088/1755-1315/192/1/012048

来源: IOP

【 摘 要 】

When large-scale power grids are connected to the power grid, it is conceivable that adverse effects on the operation and planning of power grids can be imagined. Therefore, wind power has characteristics such as intermittency, volatility, anti-peaking characteristics, and large prediction errors. At the same time, the ability to absorb wind power is also weakened by the contradiction between the peak load and the heating load. In addition, due to the thermo-electric coupling characteristics of the cogeneration unit, ie, "heating with electricity," this characteristic directly determines that its heat output severely limits the regulation of the electric output. The results of the study indicate that the co-production unit's electric power and thermal power are coupled. Strong nature, the peak load capacity of the unit is greatly affected by the heat load, and the electric power and thermal power distribution lacks a unified calculation and analysis method, which restricts the means of improving the peaking capacity of the unit by controlling the thermal power output of the unit, and through implementation, establishes the main power equipment, The steady-state power model of the thermal equipment, the steady-state power analysis and calculation method of the regional energy system of the power thermocouple, and the realization of adjusting the thermal load related parameters to improve the peak capacity of the thermal power unit.