Research on Bus Voltage Control Strategy of Magnetron Reactor Based on Variable Theory Domain Fuzzy Control

Magnetically controlled shunt reactor (MCSR) is an important reactive power compensation device in ultra/extra-high voltage systems, and the three-phase eight-column MCSR is more compact and smaller than the single-phase MCSR, which has a wide range of application prospects. Compared with the traditional reactor, the voltage control of MCSR depends on the control strategy of the control system, and the voltage regulation is relatively complicated, and there is no mature control strategy yet.In this paper, the control method of maintaining grid voltage stability after three-phase eight-column MCSR is connected to the grid is investigated. Taking a BKSFZT-30000/400 MCSR as the object of study, an electromagnetic transient simulation model is established, and through comparison and verification of simulation with the theoretical analysis and measured results, a voltage control method of MCSR based on fuzzy PI control of the variable domain is proposed, and a bus system simulation model is constructed. bus system simulation model. This paper analyzes the regulation performance of MCSR on bus voltage under different working conditions, and compares with the traditional PI control method, the variable-domain fuzzy PI control method can make the MCSR have better voltage following characteristics, and the simulation results show that the control strategy can realize the MCSR to inhibit the voltage fluctuation quickly and effectively and stable operation of the power grid.