Design of the hybrid energy storage system power conversion unit circuit topology, the energy storage system of the compound of the working principle and developed a digital control strategy.

设计了复合储能系统功率变换单元电路拓扑，阐述了该复合储能系统的工作原理并制定了数字化控制策略。

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After analyzing the characteristic of the load of the air conditioner system, it is presented the basic control strategy on how to realize the air conditioner with frequency conversion.

文章在分析铁路客车变频调速系统各部分负载特点的基础上，提出了实现铁路客车变频调速的基本控制方法。

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Analyses the application of compensation control strategy and frequency conversion technology to energy saving.

说明补偿控制策略与变频技术在节能中的应用；

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Because of the discounted conversion prices in death spirals, this strategy became more rewarding.

ECONOMIST: Lawyers turn their attention to ��death spiral�� bonds

Strategy and execution has to be joined by a very strong psychological conversion of beliefs, from the old patterns to the new.

FORBES: Want Cultural Change to Stick? Change The Way You Operate