Expert Library-based Data Verification for National-Regional-Provincial Power Grid Integration Security Correction

With the construction of national UHV power grid, the grid structure has become increasingly complex, and the national regional and provincial power grid has become increasingly interlinked. In order to more accurately grasp the future operation, grid security and stability, and clearly grasped the weak links of the grid the State Grid Corporation launched a NRPPGI (national-regional-provincial power grid Integration, NRPPGI) model in Security Correction. Data Verification is an important data prevention mechanism of NRPPGI Security Correction. In view of the characteristics and requirements of NRPPGI security checking data, this paper presents a data verification method based on expert library. The system power balance, the unit operating constraints, data completeness and rationality are considered as the quality Index of the received data. This paper also has data correction based on the verification results of the expert library. Verified by actual grid operation, the calibration data can significantly improve the calculation accuracy and convergence rate in the security correction and dispatching plan compared to the original data.