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【正文】 city to equip the exportation electric current, Li —the system transport the load get electric current, 8 Si —the charged barbed wire transports to give or get an electric shock the direct current the part get electric current, an electric capacity of C—direct current. The usual renewable energy electric power facility investment is bigger, in order to fully displays its electricity generation the efficiency, reduces system cost the recycling cycle, the electric power facility uses the maximum work rate output for the control goal. Supposes each winddriven generator and each group of solar cell arrayal works in peak power output condition, wind power generation and solar energy electric power facility output total output distinction is WmP and PVmP , system to its use factor distinction WK and PVK , then (2 3) the formula may rewrite is System structure drawing like chart 2 7 show: May know by the 27 chart, the system input value are more, in view of a wind power solar energy mix generating system characteristic, uses the graduation fuzzy control in here us the strategy to e to the system to carry on the control, and designs four level of graduation fuzzy controllers to realize to mixes the generating system to carry on thee energy management and the control. System structure drawing like chart 2 8 show: The burden of the system is to be provided directly by the direct current electric power and through go against to change the machine exportation, the stability of the direct current 9 electric voltage bees direct influence39。s is a system to output the exchanges electric power quantity, stability and dependable key factors. As a result the choice direct current is part of physically the direct current electric voltage dcU measure with the direct current electric voltage variety dcu? , be the first degree importation of the system, output for the direct current electric voltage etc. the effect be worth 1y 1y is a prehensive direct current electric voltage dcU measure with the direct current electric voltage variety dcu? , get dcU future appearance. Substantially, it reflected the system on the current direct current electric voltage foundation, if don39。t change the control quantity, then next sample the estimate value of the time direct current side electric voltage is 1y , because of before next adoption period arrival, the exportation control of the system quantity, was reason logically by faintness personal occurrence change, as a result define here 1y be worth for the etc. effect of parts of electric voltages of the system direct current. Second degree with the first degree output39。s direct current electric voltage etc. the effect value 1y and burden LP be that class importation of the misty controller, output 2y take for load the opposite system energy load strength: 2y is a prehensive burden LP and load the direct current electric voltage etc. the effect be worth 1y get of a three change the quantity. When 1y big in expect to be worth, the energy that the system burden need is in addition to from can renewable energy in addition to provide, still having a part to need to be kept the ability ponent electric capacity by the direct current, then can lower the direct current side electric voltage, make the direct current side electric voltage dcU be worth the direction variety toward expectation, then the burden need from can the renewable energy provide the energy drive die down。 When 1y small in expect to be worth, can the renewable energy is in addition to the system burden in addition to providing the energy, still wanting toward direct current to keep the ability ponent electric capacity to pensate the electric power, raise the direct current side electric voltage, from can the renewable energy angle to see, need to provide the energy to be strengthen in the foundation for load: As a result define to output here 2y for load the load strength of the opposite system energy. Xrated output the biggest power with a strong wind energy of influence 4x and load the opposite system energy strength 2y be the importation of the xrated misty controller, output 3y is the utilization of the wind energy WK , be to output to provide to the breeze 10 electrical