Simulation Analysis of the Temperature Field of a Distributed Magnetic-Valve Reactor Based on Biphasic Composite Materials

Magnetic valve reactor is a key reactive power compensation device in power systems, widely used in scenarios such as suppressing power frequency overvoltage, limiting short-circuit current, and compensating for line capacitive power. Magnetron reactors play an important role in improving power quality and operational efficiency by accurately adjusting the reactance value to achieve smooth and continuous changes in capacity. With the advancement of new magnetic material technology, biphasic composite magnetic materials have been introduced into the design of magnetic reactors, providing new solutions for improving equipment performance and control capabilities. This article proposes a new type of magnetic valve reactor based on composite magnetic materials, which significantly improves the adjustment range and linearity of the reactance value through low reluctance magnetic circuit design and magnetic coupling and decoupling technology. Using finite element simulation software, a systematic analysis was conducted on the magnetic flux distribution and reactance characteristics under different remanence conditions. The results showed that the magnetically controlled reactor with composite magnetic materials exhibited excellent performance in magnetic flux conduction and energy utilization. The simulation verified the stability of the magnetic controlled reactor under different operating conditions and the continuity of inductance value adjustment. In addition, finite element simulation further verified the feasibility and effectiveness of the design, and the composite material based magnetic valve reactor meets the application requirements in terms of volt ampere characteristics and control characteristics. This study provides theoretical and practical support for the performance optimization and technological innovation of magnetic valve reactors based on composite materials.