直流脉冲发电机组励磁电源环流抑制与直流限压研究

Study on Excitation Power Circulation Suppression and DC Voltage Limitation of DC Pulse Generator Set

为避免对电网造成负荷冲击,在核聚变实验装置中广泛运用直流脉冲发电机组。针对传统开环控制励磁电压的方式无法解决发电机组并联运行时出现的环流问题,在理论分析环流抑制措施的基础上,提出一种电枢电流闭环负反馈控制的励磁电源系统。从工程实际情况出发,重点阐述了直流侧电容电压泵升问题,从而提出自然续流下电容旁路的解决方案,消除了死区时间对自然续流的不利影响。仿真和实验证明励磁电源系统设计的合理性。

In order to avoid the load impact on the power grid,the DC pulse generator sets are widely used in the fusion experimental equipment.However,the traditional open-loop excitation voltage control method can not solve the circulation problem when the generator sets operate in parallel.Aiming at this problem,based on the theoretical analysis of circulation suppression measures,this paper put forward a kind of armature current closed-loop feedback control of excitation power supply system,and starting from the engineering actual situation,expounded the DC side capacitor voltage pump up problems,and put forward the solution of natural continued flow capacitance bypass,eliminating the dead band time adverse impacts on the natural stream.The simulation and experiment prove the rationality of the design of the excitation power supply system.