CAJ | 학술논문

特高压直流输电是解决大规模新能源外送问题的较好方案。文章基于既能模拟大规模风电又能精确模拟特高压直流输电系统的先进数模混合实时仿真平台，对特高压直流系统与风电的协调控制策略进行了深入研究。结合特高压直流输电系统的有功调节特性及设备操作特性，提出跟随风功率波动进行直流功率协调控制的有功控制策略；针对风机脱网及系统恢复稳定的动态特性，提出与之相对应的特高压直流输电系统无功协调控制策略，该策略提高了系统的故障恢复特性和稳定性。通过数模混合实时仿真试验，验证了协调控制策略的有效性。
특고압직류수전시해결대규모신능원외송문제적교호방안。문장기우기능모의대규모풍전우능정학모의특고압직류수전계통적선진수모혼합실시방진평태，대특고압직류계통여풍전적협조공제책략진행료심입연구。결합특고압직류수전계통적유공조절특성급설비조작특성，제출근수풍공솔파동진행직류공솔협조공제적유공공제책략；침대풍궤탈망급계통회복은정적동태특성，제출여지상대응적특고압직류수전계통무공협조공제책략，해책략제고료계통적고장회복특성화은정성。통과수모혼합실시방진시험，험증료협조공제책략적유효성。
UHVDC power transmission is a better solution for large-scale transmission of new energy resources. Based on an advanced real-time digital/analog hybrid simulation platform, which can simulate both large-scale wind farms and UHVDC power transmission system accurately, the cooperative control for UHVDC transmission system with wind farms is researched in depth. According to active power adjustment characteristics and equipment operating characteristics of UHVDC transmission system, an active power control strategy, which can track the fluctuation of wind power, for cooperative control of DC power is proposed. Combining with dynamic characteristics of power grid stability recovery, a reactive power cooperative control strategy for UHVDC transmission system under the circumstance of wind farm disconnected from power grid, by which both fault recovery characteristics and stability of power grid can be enhanced, is put forward. The effectiveness of the proposed cooperative control strategies is verified by real-time digital/analog hybrid simulation.