Locomotive probability load modeling method considering multiple harmonics

• Main Authors: YING YICHEN, ZHENG CHEN, ZHANG BO, ZHU HUA, LIU SHUMING, WU MINGLI, DAI SHUANGYIN, WANG YI, TANG YUZHENG
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2021
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a locomotive probability load modeling method considering multiple harmonics. The method comprises the following steps of: 1, acquiring electric power data of a locomotive to be modeled; 2, obtaining a relational expression between the actual fundamental current and the actual harmonic current content of the locomotive; 3, setting actual fundamental current statistical intervals of the locomotive, and calculating the probability density of the harmonic current content in each interval; 4, calculating a probability density function of the harmonic current content in each interval of the locomotive; 5, calculating the theoretical fundamental current of the locomotive to be modeled; 6, performing Monte Carlo sampling on third harmonic to obtain a third harmonic current content sampling value after Monte Carlo sampling; 7, calculating a mean value of each harmonic current content rate and a content value of each other harmonic current; and 8, estimating the locomotive probability load of t