CAJ | 학술논문

根据多端柔性直流输电系统的数学模型和控制策略搭建出PSCAD/EMTDC的多端头型直流输电系统仿真模型，并针对舟山多端柔性直流输电工程进行了分析，绘制了舟山工程的拓扑机构，并提出相应的控制策略。通过仿真验证舟山系统采用电压偏差控制、无源孤岛控制以及无功功率和交流电压斜率偏差控制时，能够提高舟山系统在远方电压降落时稳定运行的能力，增强了舟山系统运行的可靠性和灵活性。
근거다단유성직류수전계통적수학모형화공제책략탑건출PSCAD/EMTDC적다단두형직류수전계통방진모형，병침대주산다단유성직류수전공정진행료분석，회제료주산공정적탁복궤구，병제출상응적공제책략。통과방진험증주산계통채용전압편차공제、무원고도공제이급무공공솔화교류전압사솔편차공제시，능구제고주산계통재원방전압강락시은정운행적능력，증강료주산계통운행적가고성화령활성。
Based on the mathematical models and control strategies of flexible multi -terminal HVDC transmission systems , the simulation model of multi -end DC transmission system is established by PSCAD /EMTDC.The flexible multi -terminal HVDC transmission project in Zhoushan is analyzed to draw the topology agency of Zhoushan project , and the corresponding control strategies are proposed .The control strategies adopted in Zhoushan project are verified by the simulation such as volt -age bias control , passive island control , reactive power control and AC voltage slope deviation control , which can improve the ability of stable operation during voltage drop in the distance and enhance the reliability and flexibility of system operation in Zhoushan .