Safety constraint economic dispatching method for embedded reactive power and voltage

• Main Authors: LU CHUNLING, XIA QING, WANG YANG, LAI XIAOWEN, ZHONG HAIWANG, YANG ZHIFANG
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2018
• 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 safety constraint economic dispatching method for embedded reactive power and voltage, and belongs to the field of electric power system safety constraint economic dispatching. According to the method, first an optimal power flow model of safety constraint economic dispatching formed by an objective function and a constraint condition is built; after the model is iteratively solved, a per unit error is checked for all branch lines; if a line exists which does not meet the per unit error, a power flow equation constraint is updated, iteration of a next time is performedtill all the lines meet the per unit error, the model converges, iteration ends, and a whole set of electric power system safety constraint economic dispatching scheme containing node voltage amplitude, a voltage phase angle, unit active power output and reactive power output is obtained. The safety constraint economic dispatching method for embedded reactive power and voltage can maximally meetelectric power system econ