Coordinated control system for energy storage and primary frequency modulation

• Main Authors: HUANG RONG, YANG SHENG, GUO JIAHU
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a coordinated control system for energy storage and primary frequency modulation, which is characterized in that an energy storage module is connected to a three-phase full-bridge rectifier circuit, the three-phase full-bridge rectifier circuit is connected to a power grid through an LC rectifier circuit, a current sampling point is arranged between the LC rectifier circuit and the power grid, and the LC rectifier circuit is connected to a primary frequency modulation module. A voltage sampling point is arranged between a capacitor and an inductor of the LC rectifying circuit; the current sampling point and the voltage sampling point are respectively connected to a Clark conversion module, the Clark conversion module transmits a voltage signal and a current signal to a primary frequency modulation module, and the primary frequency modulation module corrects the current signal according to a frequency reference signal, a frequency actual measurement signal and the charge state of the en