CAJ | 학술논문

摘要：链式结构静止同步补偿器（staticsynchronouscompensator，STATCOM）装置具有可分相控制、易于实现模块化设计、可靠性高、谐波特性好、无需多重化变压器、无需器件串联等显著优点，可改善系统暂态稳定，提高系统动态性能，改善用户电能质量，受到普遍重视。链式结构STATCOM的数学模型是研究相应控制策略及装置特性的基础。从单相H桥链节模型入手，研究单相链式STATCOM的动态模型建模方法，分别建立开关周期平均模型和小信号交流模型。通过仿真验证了所建模型的合理性，为装置级控制策略的研究奠定了理论基础。
적요：련식결구정지동보보상기（staticsynchronouscompensator，STATCOM）장치구유가분상공제、역우실현모괴화설계、가고성고、해파특성호、무수다중화변압기、무수기건천련등현저우점，가개선계통잠태은정，제고계통동태성능，개선용호전능질량，수도보편중시。련식결구STATCOM적수학모형시연구상응공제책략급장치특성적기출。종단상H교련절모형입수，연구단상련식STATCOM적동태모형건모방법，분별건립개관주기평균모형화소신호교류모형。통과방진험증료소건모형적합이성，위장치급공제책략적연구전정료이론기출。
Chain circuit static synchronous compensator （STATCOM） has significant advantages, such as easy to achieve split-control, simple to implement modular design, high reliability, good harmonic characteristics, no multi-transformer and no series connected power semiconductor devices, having been widely studied in improving system transient stability, system dynamic performance and customer power quality. Its mathematical model is the key to studying the corresponding control strategy and analyzing dynamic performance. This paper began with dynamics models of single-phase H-bridge, modeling of single-phase chain circuit STATCOM was studied, switching cycle average model and small signal AC model of single-phase chain circuit STATCOM were established. The simulation results verify the correctness and validity of the models, and the models can lay theoretical foundation for equipment-level control strategy study.