船舶综合电力推进系统电力谐波标准探讨

交流推进系统中的大功率变流装置产生大量高次谐波,对船舶电力系统发、配、用电设备造成不良影响,甚至出现严重危害。为了控制谐波"污染",各国和船级社都对谐波制定了相关标准,虽然都是针对电力系统谐波提出的限制标准,但是这些标准在范围、内容、限制指标上存在较大差异。文中对几种常用标准的谐波限值指标进行了对比和分析,对综合电力推进船舶的谐波标准进行了初步探讨。

Discussion of Power Harmonic Standard in Integrated Electric Propulsion System

The AC propulsion system of high-power converter equipment generates a lot of high harmonics which makes adverse effects for power system, distribution, electrical equipment. In order to control harmonic ＂pollution＂, countries and classification societies have developed standards for harmonics. These standards are made for power system harmonic limits, but they are quite different in the scope, content and limits. This paper compares and analyzes several commonly indicators of the standards, and gives a preliminary study on the integrated electric propulsion ship harmonic standard.