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In order to realize the effective control of various units in the microgrid such as renewable energy power generations and power storage, a universal control experimental platform for microgrid is constructed based on DSP module. The hardware components of the platform include mainly the DSP system controller, touch screen, the host compute, and the software components include the module control program, the underlying driver and communication program. Based on powerful capabilities of DSP, such as data acquisition and computing, the experimental platform achieves the objective of effective control of power generated by kinds of renewable energies in microgrid, and provides a practical platform to improve the experimental ability of electrical students in colleges and universities, and brings experimental support for scientific research in the field of electrical engineering. [ABSTRACT FROM AUTHOR]

In order to implement efficient utilization of intermittent and variable wind energy，a new wind power hydrogen coupled with fuel cell microgrid experimental system is designed. Specifically，by using PLC the design and optimization of multiple controllers for rectifier，temperature，pressure and level in electrolytic hydrogen production system are completed. Also the pressure and temperature information of hydrogen storage bottles，compressing process control and hydrogen supplying process control are provided based on PLC. And the DC/AC inverter power control is implemented to control the output power of the fuel cell system. Furthermore，the coordinated control of the microgrid system is proposed to implement three different operating modes，including the independent operation of both wind power hydrogen subsystem and fuel cell power generation subsystem，as well as the system-wide operation of whole microgrid. Practical application shows that the microgrid system can not only achieve stable and secure operation of the subsystems，but also enable the switch of the corresponding operation mode depending on the system operating conditions. [ABSTRACT FROM AUTHOR]