CAJ | 학술논문

为满足HL-2A中性束加热的需求,我们为HL-2A的NBI注入器研制了脉冲送气回路及其控制系统,系统的核心流量控制部件为PEV-1压电晶体阀,主要是根据气压测量结果调整压电阀电源输出脉冲电压波形来控制压电阀的流导.为克服了压电阀性能参数离散,对不同离子源的送气回路进行了单独标定.送气实验结果表明,离子源放电室气压控制精度达到了0.05Pa,通过调整不同压电阀电源输出波形,减小了束线4个离子源送气回路之间相互影响,得到了平稳的离子源工作气压.
위만족HL-2A중성속가열적수구,아문위HL-2A적NBI주입기연제료맥충송기회로급기공제계통,계통적핵심류량공제부건위PEV-1압전정체벌,주요시근거기압측량결과조정압전벌전원수출맥충전압파형래공제압전벌적류도.위극복료압전벌성능삼수리산,대불동리자원적송기회로진행료단독표정.송기실험결과표명,리자원방전실기압공제정도체도료0.05Pa,통과조정불동압전벌전원수출파형,감소료속선4개리자원송기회로지간상호영향,득도료평은적리자원공작기압.
To meet the heating requirement of neutral beam for HL-2A tokamak,a pulsating gas supply system was developed for the NBI (neutral beam injector) on HL-2A with the PEV-1 piezoelectric valve used to control its gas flow.It was designed to regulate the output voltage waveform of the power supply to the valve in accordance to the measured results of gas pressure so as to control the flow conductance of the valve.To avoid the discreteness of performance parameters of the valve,each and every gas supply circuits for different ion sources were calibrated separately.Experimental results showed that the gas pressare control in the discharge chamber of ion source is accurate to 0.0SPa.The interactions between 4 gas supply circuits of NBI ion sources are weakened to implement the stable working pressure in ion sources.