CAJ | 학술논문

针对目前电网电流检测不准确问题，介绍一种新的检测方法，即改进的P-Q法，可避免电网电压畸变及不平衡所造成的检测误差，从而使得检测结果更为准确。另外，也简要分析了传统两种检测方法的原理，并在电网电压畸变仍对称或不对称两种情况下进行仿真比较，证明改进后的检测方法的正确性与准确性。
침대목전전망전류검측불준학문제，개소일충신적검측방법，즉개진적P-Q법，가피면전망전압기변급불평형소조성적검측오차，종이사득검측결과경위준학。령외，야간요분석료전통량충검측방법적원리，병재전망전압기변잉대칭혹불대칭량충정황하진행방진비교，증명개진후적검측방법적정학성여준학성。
Considering the problem of inaccurate current detection for present power grid, this paper introduces a new detection method, namely improved p-q method. It can avoid detection errors caused by power grid voltage distortion and imbalance, therefore improves test result accuracy. In addition, this paper briefly analyzes the principle of two traditional detection methods, and performs simulation and comparison for symmetric and asymmetric power grid voltage distortions. Results show the validity and accuracy of the improved detection method.