Wind-solar power generation and hydrogen-production hydrogen-storage system and operation control method thereof
A technology for wind and solar power generation and photovoltaic systems, which is applied in photovoltaic power generation, wind power generation, current collectors, etc., and can solve the problems of low energy utilization rate, short equipment life, and large power grid impact.
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[0058] As a specific implementation provided by the present invention, preferably, it is characterized in that it includes the following steps:
[0059] A. Establish low-bandwidth communication between the controller of each converter, the power coordination control module and the monitoring module: The controller of each converter adopts an adaptive PI controller to collect the monitoring data of each monitoring system. The monitoring data includes the following Several or all of: wind farm power, superior power grid dispatching power, cooling and heating system power, user power, photovoltaic system power, overall power of solid oxide electrolyzer / hydrogen fuel cell group, oxygen / hydrogen tank pressure, The power and state of charge SOC of the energy storage device, the voltage and power of the supercapacitor; the above monitoring data are all connected to the input interface of the ARM processor in turn, and the output port of the power reference value of each part is determine...
Example Embodiment
[0066] As a specific implementation manner provided by the present invention, preferably, the control of the supercapacitor artificially sets three voltage ranges, as shown in formula (1) (U SCmin high SCmax ,U SCmin low SCmax ); Three sets of voltage ranges correspond to three working states (state 1 when the voltage is too high and cannot be charged, state 2 that can be charged and discharged, and state 3 when the voltage is too low and cannot be discharged), the supercapacitor switching voltage range conditions, η SC→ η SClow The conditions are the same as that of the electrolytic cell mode 1 to mode 3, η SC→ η SChigh The conditions are the same as the fuel cell operation mode 8 to mode 9; the super capacitor can choose to work with the fuel cell or the electrolytic cell according to the system operation status;
[0067]
[0068] U SCmin And U SCmax It is the inherent characteristic of supercapacitors and needs to be selected according to the system requirements, whil...
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