In order to study the application of active noise control technology（ANC） for substation noise control

an active noise control system device based on fast frequency domain variable block minimum mean square error（FVBLMS） algorithm is designed and constructed. Compared with the BLMS algorithm

the FVBLMS algorithm improves the computational efficiency and enhances the online performance. The performance analysis and simulation results show that the computing time of the proposed algorithm is shortened by 0.058 s compared with that by the BLMS algorithm. On the basis of FVBLMS algorithm

a set of active noise control system which can resist the strong magnetic environment interference of substation is designed and built. The device is used to test the noise reduction in real substation. Experimental results show that the noise reduction system can achieve the average total noise reduction of 5.8 dB in a certain noise reduction area. This system has a certain ability to reduce noise

and has guiding meaning for further engineering applications.