To guarantee safe commutation, a four stepped switching strategy is realized by using programmable logic devices.

主电路采用反向串联的双向IGBT开关，用可编程逻辑元件实现四步切换，以保证安全换流。

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For all disturbances which the upper bounds are unknown, the tracking errors decrease uniformly asymptotically to zero by the designing of switching strategy.

通过设计切换律，对于具有未知上界的干扰，保证跟踪误差一致渐近趋于零。

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From the generation principle of switched reluctance generator (SRG), two methods of enhancing output power were introduced, and a new switching strategy was focused on.

根据开关磁阻发电机(SRG)的发电原理，介绍了提高SRG输出功率的两种方法，重点介绍了一种新的开关策略，并对SRG在各种可能的开关角下进行了仿真。

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Talks had apparently been going on for a while to start a Blyk-branded Dutch MVNO, but to better align with its revised business strategy, the company is switching up its strategy and working with Vodafone to use its existing infrastructure exclusively.

ENGADGET: Blyk hooks up with Vodafone in Holland Mobile

In a bit of spin, Coca-Cola eventually claimed that both formulas actually increased their share of the cola market, and some conspiracy theorists even insinuated that this was actually a brilliant, secret strategy intended to regain loyalty of Coca Cola drinks that have been switching to Pepsi.

FORBES: Maker's Mark's Plain Dumb Move Proved To Be Pure Marketing Genius