Electricity-gas-heat interconnected system abandoned wind/light and electricity-gas-heat load curtailment generalized least optimization model construction method

A technology for interconnecting systems and optimizing models, applied in data processing applications, forecasting, instruments, etc., can solve the problem of not considering the phenomenon of curtailment of wind and light, and the inability to achieve effective and accurate calculation of the amount of curtailment and curtailment of wind and light. Taking into account the coupling conversion characteristics of coupling elements STCHP and EB

Active Publication Date: 2018-03-16
CHONGQING UNIV
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Problems solved by technology

In the existing research, the optimization goal is to minimize the operating cost of the electric-gas interconnection system, and the calculation of the reduction of the system's electric load and gas load is realized. However, in the related research on the optimization model of the electric-gas-heat interconnection system, the goal is to minimize th

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  • Electricity-gas-heat interconnected system abandoned wind/light and electricity-gas-heat load curtailment generalized least optimization model construction method
  • Electricity-gas-heat interconnected system abandoned wind/light and electricity-gas-heat load curtailment generalized least optimization model construction method
  • Electricity-gas-heat interconnected system abandoned wind/light and electricity-gas-heat load curtailment generalized least optimization model construction method

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[0089] The present invention will be further described below in conjunction with the examples, but it should not be understood that the scope of the subject of the present invention is limited to the following examples. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

[0090] Referring to the accompanying drawings, the present invention adopts the IEEE9-NGS6-DHN7 electric-gas-heat interconnection system to verify the embodiment. The system consists of three parts: IEEE9 node power system, NGS6 node natural gas system and DHN7 node thermal system:

[0091] (1) Basic data preparation

[0092] figure 2 There are 3 generators in the IEEE9 node standard system, the total installed capacity of thermal power is 438MW, and there are 3 electric loads, with a peak load...

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Abstract

The invention discloses an electricity-gas-heat interconnected system abandoned wind/light and electricity-gas-heat load curtailment generalized least optimization model construction method. Aiming atdefects in the prior art, the method has the advantages that variables such as a heat load curtailment quantity, an abandoned wind quantity, an abandoned light quantity and the like are added in a target function of an optimization model, and a minimum sum of an electricity load curtailment quantity, a gas load curtailment quantity, the heat load curtailment quantity, the abandoned wind quantityand the abandoned light quantity is taken as the target function of the optimization model; variables such as a consumption gas flow, heat supply power and active power output in an STCHP model are added into an equality constraint of the optimization model, and variables such as consumption electric power and heat supply power of an EB device are added into the equality constraint of the optimization model; and upper and lower limit constraints of the electricity/gas/heat load curtailment quantity quantities, the abandoned wind quantity and the abandoned light quantity, and capacity constraints of the STCHP and the EB devices are considered in an inequality constraint of the optimization model.

Description

technical field [0001] The invention belongs to the field of comprehensive energy systems, and aims to realize the calculation of the comprehensive load reduction of the electricity-gas-heat interconnection system and the system's curtailment of wind and light, and specifically relates to the comprehensive minimum optimization of wind curtailment and electricity / gas / heat load reduction Model. Background technique [0002] In recent years, with the continuous expansion of the scale of traditional coupling components such as combined heat and power (CHP), gas generators (GFG), gas boilers (GB), electric boilers (EB) of various fuel types, electricity, natural gas, thermal systems The coupling relationship between them is getting deeper and deeper. Coupling element solar thermal heat and power (STCHP) utilizes clean energy solar heat and is equipped with heat storage at the same time, which breaks the traditional operation mode of "heat determines electricity" in combined heat...

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/067G06Q50/06
Inventor 余娟马梦楠郭林严梓铭颜伟赵霞
Owner CHONGQING UNIV
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