In this paper, the principle of balanced transformation is analyzed; the balance mode, detection of compensating currents and controlling method of the active filter are discussed.

文中分析了系统平衡变换原理，讨论了系统的平衡方式、补偿电流检测与有源滤波器控制方法。

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This detection system for analyzing the scraper conveyer operation conditions, and then controlling the scraper conveyer constantly, provides safeguard for the normal running of the whole production.

本测试系统为分析刮板输送机运行状况，进而对刮板输送机在运行过程中不断加以控制，从而为整个生产的正常运行提供了保障。

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This power-factor monitoring and compensation system was made up of electrical parameters detection system and compensation controlling system.

此功率因数监测与补偿系统由电参数检测系统和补偿控制系统两部分组成。

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