一种未建模小机组参与电力市场出清和安全校核的方法

本发明提供了一种未建模小机组参与电力市场出清和安全校核的方法。在电力现货市场技术支持系统中，当物理模型未对参与市场的低电压等级小机组建模时，通过定义小机组与电气母线或等值负荷的挂接关系和功率分配系数，利用等值负荷预测有功扣除小机组通过该等值负荷向主网输送的有功，得到等值负荷的真实有功来计算潮流。利用功率分配系数和等值负荷与主网支路的灵敏度值，计算小机组与主网支路的灵敏度值，使优化模型建中直流潮流约束可以考虑小机组出力的影响。该方法可在优化出清和安全校核算法中精确考虑未建模小机组发电对电网潮流和出清结果的影响，得到准确的安全校核结果与市场价格信号。对提升电力市场出清结果的准确性，提升电网安全水平有着重要的意义。 The invention provides a method for participating in electricity market clearing and safety checking by an unmodeled small unit. In an electric power spot market technical support system, when the physical model does not model the low-voltage-level small unit participating in the market, the active power transmitted to the main network by the small unit through the equivalent load is predicted byutilizing the equivalent load prediction active power through defining the hooking relationship and the power distribution coefficient of the small unit and the electrical bus or the equivalent load,and the real active power of the equivalent load is obtained to calculate the power flow. And the sensitivity values