Based on the boring machine's fault protection features, a new data collection method, namely the improved full-wave Fourier algorithm, was proposed. On the basis of criteria for over-current, negative sequence and zero sequence current fault the algorithm for sequence component was deduced. Its performance was tested through static simulation and test. The data collection method was proved to be stable, reliable, accurate and rapid,and has important applications in significantly improving the operation performance, safety and reliability of boring machine.%根据掘进机的故障保护特点,提出了一种全新的数据采集方法,即改进的全波傅氏算法,并在过流、负序和零序电流的故障判据基础上推导出各序分量的算法.通过对其性能进行静态模拟、实验测试,发现该数据采集.5法具有稳定、可靠、准确和迅速的特点,有重要的应用价值,显著地提高了掘进机的操控性能和安全可靠性.
展开▼
