CAJ | 학술논문

为有效协调电力系统运行安全性和经济性，更合理评估输电断面最佳运行功率，文中基于安全稳定风险分析与定量评估，提出了输电断面经济输电功率的概念，即使得断面输电的经济效益与系统失稳风险代价之差获得最大值时的断面输电功率值，并将故障下使系统保持稳定的紧急控制代价作为系统失稳风险。给出了输电断面经济输电功率的实用化计算方法和调度运行应用的建议。实际大电网的算例表明，输电断面按经济输电功率运行，可在系统安全风险可控的基础上获得更好的经济性。
위유효협조전력계통운행안전성화경제성，경합리평고수전단면최가운행공솔，문중기우안전은정풍험분석여정량평고，제출료수전단면경제수전공솔적개념，즉사득단면수전적경제효익여계통실은풍험대개지차획득최대치시적단면수전공솔치，병장고장하사계통보지은정적긴급공제대개작위계통실은풍험。급출료수전단면경제수전공솔적실용화계산방법화조도운행응용적건의。실제대전망적산례표명，수전단면안경제수전공솔운행，가재계통안전풍험가공적기출상획득경호적경제성。
In order to effectively coordinate the security and economy of the operation of power systems,and rationally assess the optimum operation power of transmission sections,the concept of economical transmission power of transmission sections based on quantitative analysis of security and stability risk assessment of power systems is proposed. The economical transmission power is defined as the section transmission power when the difference of transmission economic benefits and power system instability risk gets the maximum value,and the emergency control cost under unstable contingency is seen as the instability risk of the power system.A practical method of economical transmission power calculation is proposed,and suggestions for power system dispatchers application are given.Simulation results of an actual large-grid test system show that better economic performance can be attained on the basis of the controllable power system risk provided the transmission sections operate at the economical transmission power.