Applicability of Frequency Response Test for Stability Evaluation of Gas Pressure Regulator
Applicability of Frequency Response Test for Stability Evaluation of Gas Pressure Regulator
复制标题
频率响应测试在燃气调压器稳定性评价中的适用性
DOI：
10.9746/sicetr.49.747
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
T. Kagawa
中科院分区：
文献类型：
--
作者：
T. Takeuchi;T. Kagawa
在用于天然气分配的气体压力调节器中，不稳定的行为（例如摆动）可能导致压力异常。因此，稳定性的定量评价是非常重要的。在传统的方法中，评估调节器的稳定性需要建立所有调节器元件的数学模型。然而，由于调节器的机械结构多种多样，建立数学模型并不容易，并且担心会积累参数测量误差和建模近似值。在本研究中，我们建议将频率响应测试应用于调节器。研制了频率响应测试装置，并进行了多项试验，通过频率响应测试定量评价了稳压器的稳定性。结果证实了将频率响应测试应用于调节器的有用性。
In gas pressure regulators for natural gas distribution, unstable behaviors such as hunting could result in pressure anomalies. Therefore the quantitative evaluation of stability is very important. In conventional method, evaluation of the stability of regulator requires to develop mathematical model of all regulator elements. However, developing the mathematical model is not so easy because of variety of mechanical structure of regulator and it is feared that parameter measurement error and modeling approximations can be accumulated. In this study, we propose to apply a frequency response test to regulator. The devices for frequency response test has been developed and several test were performed to quantitatively evaluate the stability of regulators by the frequency response test. And the results confirmed the usefulness of applying the frequency response test to regulators.