On the basis of an in-depth analysis of the existing evaluation criteria

according to the specific situation of China’s interconnected power grids

and with the aim of standard formulation as the foundation

the from-top-to-bottom principles of standard formulation while taking safety

quality

economy into account are proposed

which are based on the aims of standard formulation. According to the principles

taking standard body

time scale

and frequency deviation coefficient as the starting point

the means of achieving control objectives is discussed. Then

the six issues to be researched in formulating operation control performance assessment criteria of China’s interconnected power grids are pointed out analysed and discussed. Analysis shows that basic research on the assessment criteria is indispensable. Studies on specific new criteria issues applicable to China’s actual situation should be studied. This work is supported by State Grid Corporation of China.