Solar power grid and municipal power grid no-countercurrent combination power supply control system and method thereof

A municipal power grid and combined power supply technology, applied in the direction of a single AC network with different frequencies, can solve the problems of new renewable energy efficiency discounts and the inability to guarantee long-term stable output supply, etc., to improve power generation efficiency, avoid energy loss, The effect of improving usage efficiency

Inactive Publication Date: 2014-03-19
HUBEI UNIV OF TECH
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Problems solved by technology

But at the same time, one of the biggest disadvantages of these new renewable energy sources is that they cannot guarantee long-term stable output supply when they consume energy at the load end, which makes

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  • Solar power grid and municipal power grid no-countercurrent combination power supply control system and method thereof
  • Solar power grid and municipal power grid no-countercurrent combination power supply control system and method thereof

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0049] please see figure 1 , the technical scheme adopted by the system of the present invention is: a solar power grid and municipal power grid without countercurrent joint power supply control system, which is connected with the solar power grid terminal 9, the municipal power grid terminal 10, the DC load terminal 11 and the AC load terminal 12, and its characteristics It consists of: including a DC control module 1, an AC control module 2, an anti-backflow control module 3, a rectification control module 4, a main control module 5, a sampling detection module 6, an input module 7 and an output module 8;

[0050] The DC control module 1 includes a DC / DC voltage boosting circuit 101, a first IPM module 102, and an MCU 103. One end of the MCU 103 is connected to the main control module 5, and the other end is connected to the input end of the DC / D...

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Abstract

The invention discloses a solar power grid and municipal power grid no-countercurrent combination power supply control system and a method thereof. According to the system and the method, through reasonably controlling the output power of a PV array in a whole solar power grid system, the control of the output power of the whole solar system is realized, the balanced, sustained and stable output of the whole solar power grid generation system is ensured, and a solar power grid terminal and a municipal power grid terminal supply power to a load together through alternating current grid connection. The object of 'local, efficient and prior use' of power generated by the solar power grid terminal is realized, a countercurrent prevention control device is added to a municipal power grid power supply terminal according to the control system so as to prevent the electric energy generated by a solar power gird from flowing to a municipal power grid, thus the cleanness of the municipal power grid is ensured, and the pollution and influence on the municipal power grid by the solar power grid are avoided.

Description

technical field [0001] The invention relates to the technical field of renewable energy power generation applications, in particular to a control system and method for combined power supply of a solar power grid and a municipal power grid without backflow. [0002] Background technique [0003] At present, with the outbreak of the energy crisis in various countries around the world, global energy is facing enormous pressure and challenges. Under this environment, renewable new energy sources such as solar energy, wind energy, and tidal energy have become a rookie and are gradually gaining popularity. favored by. But at the same time, one of the biggest disadvantages of these new renewable energy sources is that they cannot guarantee a long-term stable output supply when they consume energy at the load end, which makes the new renewable energy sources encounter huge resistance at the development end. At the same time, the effectiveness of new renewable energy sources in all...

Claims

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Application Information

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IPC IPC(8): H02J3/02
Inventor 席自强肖辉
Owner HUBEI UNIV OF TECH
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