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1·The QSS converter model in account of unsymmetric commutating voltages is developed for DC system.

对直流系统开发了计及换相电压不对称的QSS换流器模型。

2·Introduce Noritsu branded newly released machines, namely QSS-3202 and QSS-3301, including their new functions and merits.

介绍诺日士品牌最新推出机种QSS - 3202及QSS - 3301，包括其新增功能及优胜之处。

3·The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when unbalanced fault occurs in AC system.

当交流系统发生三相不对称故障时，忽略直流系统负序分量的准稳态模型将给交直流混合系统的仿真带来较大的误差。

4·A quadrant staircase structure (QSS) used as an encoded element can realize 57 different states, and it is expected to enhance the data density 6 times as high as the conventional method.

四台阶结构相位编码可以实现57个不同的数据态，有望将数据密度提高为传统方法的近6倍。