Modeling and Simulation of Novel Distributed Generation with Hydraulic Conversion for Ocean Currents

Abstract

Research on ocean current energy power generation equipment based on hydraulic transduction belongs to the scientific and technological frontier of energy equipment development research, which has important theoretical significance and huge commercial value. According to the system design requirements, the paper established relevant mathematical models and analyzed the main factors affecting the motor speed, including the mathematical models of variable pumps and variable motors. At the same time, using the AMESim simulation platform, a simulation model that is consistent with the experimental parameters of hydraulic transmission and control power generation is established to establish a theoretical basis for the study of control algorithms. Through the simulation model, the influence of different input and interference signals on the motor speed is analyzed. Combined with the functional requirements of ocean current power generation equipment, the hydraulic conversion control power generation equipment control system was researched and parameter designed. The control system takes variable motor constant speed control as the core and converts the disordered input natural flow energy into hydraulic energy. Adopting feedforward adaptive control algorithm, and using the steeples speed regulation of the hydraulic system, the novel distributed generation system realized the constant frequency power generation of the generator rigidly connected to the hydraulic motor.