促进新能源消纳的电力交易偏差结算补偿机制

随着新能源参与市场交易的比例不断扩大,由于其波动性强、预测准确度低等特性,引起新能源电厂基数电量分配不均、合同电量滚动到年底仍无法结算等问题,使得设计新能源电厂参与电力市场交易偏差结算机制尤为关键。文中立足新能源参与电力交易现状,提出新能源替代利益补偿办法。首先,基于结算日新能源电厂实际发电量减去事前合同电量,按机组装机容量确定基数电量。然后,针对市场中各电厂参与交易的电量和电价,确定新能源电厂结算综合单价,核定超发电厂对少发电厂的经济补偿。最后,通过具体算例得出该方法可以使得市场份额高的电厂获得高利润,同时,按月结算电费保证了交易合同的执行力。

Settlement Compensation Mechanism of Power Trading Deviation with Promotion of Renewable Energy Consumption

The proportion that renewable energy participates in the market transactions continues to increase. However, renewable energy has many characteristics such as strong volatility, poor prediction accuracy and so on, causing uneven distribution of cardinal electricity quantity among renewable energy power plants, low consumption ratio of renewable energy and other issues. As a result, design of renewable energy power plants to participate in the electricity market trading bias settlement model is particularly critical. The method of substitute compensation for renewable energy is put up according to the present situation of the renewable energy. Firstly, the actual generation of the renewable energy plant should minus the beforehand contract generation and make sure the base power generation according to installed capacity of units. Then, the comprehensive unit price of the renewable energy power plant settlement is determined based on electricity quantity and electricity prices in market transaction, and the economic compensation for less power plants from excess power plants is calculated. Finally, a specific example is given to show that the method can make the power plant with a high market share to obtain high profits, while the monthly power transaction execution is guaranteed.