Title :
The study of frequency optimal control method of photovoltaic-diesel hybrid isolated microgrid system
Author :
Mi Yang ; Tian Yue ; Zhang Han ; Wang Limin
Author_Institution :
Coll. of Power Eng., Shanghai Univ. of Electr. Power, Shanghai, China
fDate :
May 31 2014-June 2 2014
Abstract :
A hybrid isolated microgrid is proposed, including PV power, diesel generator system, load and other subsystems.. Based the equivalent circuit and output characteristics of photovoltaic cells, PV model has been established and maximum power point tracking(MPPT) has been implemented to make full use of solar energy. Diesel model has been established, base on it PID load frequency compensation control method is proposed which adjust the power output by controlling the rotational speed of the diesel generator, then adjust the frequency derivation of the microgrid. Based on matlab/simulink, the simulation is conducted. The simulation result show that the control method we proposed can limit the frequency deviation within ± 0.2Hz, and have a faster response speed, it can also realize the frequency stabilization of the microgrid.
Keywords :
diesel-electric power stations; distributed power generation; equivalent circuits; frequency control; hybrid power systems; maximum power point trackers; photovoltaic cells; photovoltaic power systems; power distribution control; solar power; three-term control; velocity control; MPPT; Matlab/simulink; PID load frequency compensation control; diesel generator system; equivalent circuit; frequency optimal control; hybrid isolated microgrid; maximum power point tracking; photovoltaic cells; photovoltaic power system; rotational speed control; solar energy; Frequency control; Generators; Load modeling; MATLAB; Mathematical model; Microgrids; Diesel generator; Frequency control; Micro-grid; PV;
Conference_Titel :
Control and Decision Conference (2014 CCDC), The 26th Chinese
Conference_Location :
Changsha
Print_ISBN :
978-1-4799-3707-3
DOI :
10.1109/CCDC.2014.6853026
