CAJ | 학술논문

真空自耗电弧炉在熔炼过程中，功率因数低、谐波含量高，严重影响电弧炉稳定生产和电网电能质量。针对真空自耗电弧炉生产过程和熔炼电源特点，开发研制了基于静止无功发生器( SVG)与晶闸管投切滤波器( TS-HPF)混合的动态连续无功补偿和谐波抑制系统。系统智能补偿综合控制器采用数字信号处理器( DSP)，通过CAN总线对TS-HPF与SVG的混合投切控制，实现对电弧炉熔炼全过程动态连续无功功率补偿和谐波抑制。实际运行表明，系统可以有效抑制谐波，提高功率因数，改善电网电能质量，对真空自耗电弧炉安全稳定生产具有重要意义。
진공자모전호로재용련과정중，공솔인수저、해파함량고，엄중영향전호로은정생산화전망전능질량。침대진공자모전호로생산과정화용련전원특점，개발연제료기우정지무공발생기( SVG)여정갑관투절려파기( TS-HPF)혼합적동태련속무공보상화해파억제계통。계통지능보상종합공제기채용수자신호처리기( DSP)，통과CAN총선대TS-HPF여SVG적혼합투절공제，실현대전호로용련전과정동태련속무공공솔보상화해파억제。실제운행표명，계통가이유효억제해파，제고공솔인수，개선전망전능질량，대진공자모전호로안전은정생산구유중요의의。
During the operation of the vacuum arc remelting ( VAR) furnace,the power factor is low-er and the harmonic content is higher,which seriously affect the control system's stability and power quality. In this paper, we design a set of static var generator ( SVG ) and thyristor-cut filter ( TS-HPF) mixed continuous dynamic reactive power compensation and harmonic suppression system on the analysis of the VAR's power. The system uses DSP as the core controller and controls the switc-hing of SVG and TS-HPF through the CAN bus to implement the reactive power compensation and harmonic suppression of VAR. Practical application shows that the system can effectively suppress harmonics and improve the power factor and the power quality,which are important to the safe and stable operation of the VAR.