Contract electric quantity optimization decomposition method considering carbon emission influence
A carbon emission and carbon emission technology, applied in the field of electricity market, can solve problems such as increasing coal consumption and increasing pollutant emissions
Active Publication Date: 2020-04-03
JIANGSU FRONTIER ELECTRIC TECH +1
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However, in actual operation, when the thermal power unit implements the contract decomposition plan, it will face peak load regulation pressure, and the operating level of the unit will drop, resulting in increased coal consumption and increased pollutant emissions.
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[0082] data preparation:
[0083] Taking a bilateral transaction contract as an example, the total contract power is 10TW h, and the contract execution time is one year. The peak-valley power decomposition method is adopted. In order to simplify the calculation model, the peak power price of the contract is 248 yuan / MW h, and the contract low power price is 118 yuan / MW·h. The power generation units are three groups of 600MW thermal power units, including a group of combined heat and power units. According to the above steps, firstly carry out the curve fitting of unit load and power supply coal consumption (taking a unit as an example), as follows figure 2 As shown (abscissa is load (MW), ordinate is power supply coal consumption (g / kWh)), the fitting curve is: y=0.0001x2-0.1921x+355.9 (y is power supply coal consumption, x is unit load). m Car Taking 55%, B corresponds to the coal consumption increment (g) when the unit’s current load and 75% load level, and the carbon emi...
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The invention discloses a contract electric quantity optimization decomposition method considering carbon emission influence. The contract electric quantity optimization decomposition method mainly comprises the following steps: firstly, calculating the carbon emission of a thermal power generating unit according to a coal consumption characteristic curve of the thermal power generating unit to obtain carbon emissions corresponding to different outputs of the unit; based on the thermal power generating unit maintenance plan, determining an allowable progress coefficient difference value when the unit executes the contract plan; on the basis, taking the minimum total electricity purchasing cost as a target, considering a unit output constraint, unit maintenance, a carbon emission constraintand a combined heat and power generation constraint, and establishing an optimization model of contract electric quantity decomposition; and finally, iteratively solving the optimization model to obtain a rolling correction contract electric quantity decomposition plan. Compared with an existing decomposition method, the contract electric quantity optimization decomposition method has the advantages that the problems of coal consumption increase and carbon emission increase caused by low-load-rate operation of the units are considered, and the balance of all the units when an electric quantity decomposition contract is completed is considered.
Description
technical field [0001] The invention relates to a method for decomposing medium- and long-term contract electricity, in particular to an optimal decomposition method for contract electricity considering the influence of carbon emissions, and belongs to the field of electric power market. Background technique [0002] The power market adopts a mixed model of bilateral trading market (including direct purchase of electricity by large users), day-ahead market and real-time market. At present, power contracts are mainly completed in the bilateral market. By organizing a variety of medium and long-term bilateral contract transactions and forming physical power contracts with execution constraints, it can effectively help market members control transaction risks, lock in power prices, and ensure orderly competition in the power market. [0003] In the implementation stage, the bilateral contract power needs to be scientifically decomposed into months or days. On the one hand, it c...
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IPC IPC(8): G06Q30/02G06Q10/06G06Q50/06
CPCG06Q30/0202G06Q10/067G06Q50/06Y02P90/84
Inventor 管诗骈宋煜陆嘉玮谢伟郑飞邵俊帅率王蓓蓓范凯杨朋朋付蓉
Owner JIANGSU FRONTIER ELECTRIC TECH