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发明公开
CN105652107A 一种直流输电换流阀触发监测单元的可靠性检测方法 有权 转让

一种直流输电换流阀触发监测单元的可靠性检测方法
摘要：
本发明涉及一种直流输电换流阀触发监测单元的可靠性检测方法，包括下述步骤：(1)检验TTM板卡外观，确定TTM板卡无损；(2)TTM板卡电气性能检测；(3)将批量TTM板卡进行环境应力检测进行失效筛选；(4)最终检测TTM板卡电气性能，检出不合格品。通过本方法将存在失效风险的TTM电路板卡筛选出来，采用本发明的可靠性检测方法后TTM板卡在工程应用中的失效率低于0.025％，可靠性非常高。实现大批量TTM筛选过程中的无人值守，从而节约人力，并摒除人为错检、漏检的现象。使用发明中的阻尼回路单元为TTM板卡低压供电，在获得TTM板卡完整外特性基础上，可以大大降低操作人员受电击的风险。
摘要（英）：

The invention relates to a reliability detection method of a direct-current transmission converter valve trigger monitoring unit. The method comprises the following steps of (1) examining TTM board card appearances and determining that TTM board cards are not damaged; (2) carrying out TTM board card electrical performance detection; (3) carrying out environment stress detection on a batch of the TTM board cards and carrying out failure screening; (4) finally detecting the TTM board card electrical performance so that an unaccepted product is detected. Through the method, the TTM circuit board cards having a failure risk are screened. After a reliability detection method in the invention is used, a failure rate of the TTM board cards in engineering application is lower than 0.025% and reliability is high. An unattended screening process of the batch of the TTM is realized so that manpower is saved, phenomena of man-made false detection and leak detection are eliminated. A damping loop unit in the invention is used to carry out low voltage power supply for the TTM board cards. Based on an acquired complete external characteristic of the TTM board cards, a risk for operation personnel to suffer from electric shock can be greatly reduced.

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