Online evaluation method for frequency oscillation suppression capability of hydroelectric generating set

• Main Authors: LI HONGXUN, HE ZHENGYOU, SUN JIAN, LIAO KAI
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2024
• 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 provides a hydroelectric generating set frequency oscillation suppression capability online evaluation method, belongs to the technical field of power system frequency stability control, and aims to solve the problems that how to optimize PID parameters of a speed regulator and which sets are selected for optimization are not considered in the prior art. According to the method, the operating data of the generating set are obtained online, a damping evolution quantification method after frequency oscillation suppression measures are applied is provided, and the frequency oscillation suppression capability evaluation index of the hydroelectric generating set is constructed in combination with an oscillation suppression mechanism under damping evolution. On the basis, guidance can be provided for selecting the hydroelectric generating set to carry out speed regulator parameter optimization, and dependence on expert experience is avoided. The method can evaluate the frequency oscillation suppressio