Power converter

阅读:930发布:2021-11-22

专利汇可以提供Power converter专利检索,专利查询,专利分析的服务。并且PURPOSE: To prevent the generation of an unnecessary voltage by outputting an interruption detecting signal based on the change of the phase difference of voltage on the AC side of a PWM converter main unit and a reactor current and stopping the operation.
CONSTITUTION: AC power fed to overhead wires 1 from an electric power substation is received by an electric car through a pantograph 2, supplied to a PWM converter main unit 5 through a transformer 3 and a reactor 4, and converted into DC power while being fed to a DC load through a smoothing capacitor 6. The converter main unit 5 conducts power rectification operation in power running, and performs power inversion operation in regenerative operation. An interruption detector 11 is composed of a DC power formation circuit 12, a target vector pattern formation circuit 13, phase difference detectors 14∼15 and a pattern comparator 16, and an interruption detecting signal S
0 from the detector 11 is used as the shutdown signal of the PWM converter 5. Accordingly, the generation of unnecessary voltage on the AC side of the converter 5 can be prevented.
COPYRIGHT: (C)1989,JPO&Japio,下面是Power converter专利的具体信息内容。

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。

申请试用

QQ群二维码
意见反馈