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首页> 外文期刊>IEEE Transactions on Energy Conversion >Development and performance testing of a 200 kVA damperless superconducting generator
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Development and performance testing of a 200 kVA damperless superconducting generator

机译：200 kVA无阻尼超导发电机的开发和性能测试

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摘要

A 200 kVA, 3000 RPM superconducting generator has been developed and tested. The rotor has been wound with superconducting wire of Nb-Ti alloy. A closed-circuit liquid helium system has been designed and installed for cooling the superconducting windings. The stator carries the air-gap type armature windings and a laminated-iron flux-shield. A new concept in the design of superconducting generators with high short-circuit ratio (more than 5) has been introduced. This eliminates the requirement of an electromagnetic damper and quick response excitation system. The generator has been comprehensively tested in the superconducting state. Open-circuit and sustained short-circuit tests, three-phase sudden short-circuit tests, synchronization with the grid and parallel operation with power systems have been conducted. The synchronous machine was operated up to its rated kVA in the four quadrants-as a generator and as a condenser with leading and lagging power factors. A few special tests on superconducting generators, which were not reported earlier, such as direct-online starting of a 20 hp squirrel-cage induction motor and negative phase sequence tests have also been performed successfully. Test results and conclusions are given.
机译：已经开发并测试了200 kVA，3000 RPM的超导发电机。转子已用Nb-Ti合金超导线缠绕。已经设计并安装了闭路液氦系统以冷却超导绕组。定子带有气隙型电枢绕组和叠片式铁磁护罩。高短路比（大于5）的超导发电机设计中引入了新的概念。这消除了对电磁阻尼器和快速响应激励系统的需求。发电机已经在超导状态下进行了全面测试。已经进行了开路和持续短路测试，三相突然短路测试，与电网同步以及与电力系统并联运行。同步电机在四个象限中以高达额定kVA的速度运行-作为发电机和作为具有超前和滞后功率因数的电容器。对超导发电机的一些特殊测试，如之前未曾报道过的，例如成功启动20 hp鼠笼式感应电动机的直接在线启动和负相序测试。给出了测试结果和结论。

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