总结了协调二级电压控制(CSVC)的基本思想，提出了一种新的CSVC模型。

The basic idea of CSVC (coordinated secondary voltage control) is surveyed firstly and a novel CSVC model is presented.

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基于高压输电线路的分布参数模型，使用线路两端电压、电流的正序和负序分量，对高压输电线路两点异相故障提出了一种新的测距算法。

Based on the distributed parameter model for transmission line, a new fault location method for short circuit fault of two points on different phases of the power transmission line is presented.

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依据传统的铁电材料的P - E特性建模的方法，引入电压影响因子，得到了更为适合的P - V特性的新模型。

According to the traditional ferroelectric material P-E characteristics, introduces factors coming from voltage, more suitable P-V characteristics can be gained.

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