Photovoltaic off-grid energy storage inverter
An energy storage inverter and photovoltaic technology, which is applied in photovoltaic power generation, current collectors, energy storage, etc., can solve the problems of increased utilization of photovoltaic energy, low conversion efficiency of photovoltaic power generation, and no solution yet, achieving high conversion efficiency , Improve the effect of photovoltaic energy utilization
Active Publication Date: 2021-01-15
深圳市宝安任达电器实业有限公司
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Problems solved by technology
[0002] The low conversion efficiency of photovoltaic power generation and the low utilization rate of photovoltaic energy are one of the obstacles to the large-scale promotion and popularization of solar energy.
[0003] 1. Photovoltaic utilization Due to the influence of external conditions such as light intensity, load and temperature, photovoltaic modules can operate at different maximum power points; the photovoltaic off-grid energy storage inverter in the prior art has the following problems: it cannot make When the external conditions of the photovoltaic power generation system change, the problem of quickly and accurately operating at the maximum power point leads to low conversion efficiency of photovoltaic power generation
[0004] 2. How to integrate photovoltaic related resources and control the reasonable flow of electric energy so as to improve the utilization rate of photovoltaic energy, there is no effective solution in the existing technology
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[0044] In order to make the purpose, technical solution and technical effect of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention. In the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.
[0045] The invention provides a photovoltaic off-grid energy storage inverter, figure 1 is a structural block diagram of the photovoltaic off-grid energy storage inverter according to Embodiment 1 of the present invention, as figure 1 A photovoltaic off-grid energy storage inverter shown may include: a photovoltaic component 1 for converting solar energy into electrical energy, an MPPT controller 2 connected to ...
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The invention discloses a photovoltaic on-grid and off-grid energy storage inverter. The photovoltaic on-grid and off-grid energy storage inverter includes a photovoltaic component, an MPPT controllerconnected with the photovoltaic component, a bidirectional converter having one end connected with a power grid, an energy storage component and an inversion component; the other end of the bidirectional converter, an output terminal of the MPPT controller, an energy storage component and an input terminal of the inversion component are in interconnection; the energy storage inverter also includes a control component connected with the MPPT controller, the bidirectional converter and the inversion component, the control component is used for judging whether the photovoltaic component works ona maximum power point or not, if the photovoltaic component does not work on the maximum power point, the control component makes the inverter work on the maximum power point by controlling the MPPTcontroller. Maximum power tracking can be always maintained under external condition change, the photovoltaic power generation conversion is high in the efficiency, reasonable flow of electric energycan be controlled, and the photovoltaic energy utilization rate is improved.
Description
technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic off-grid energy storage inverter. Background technique [0002] The low conversion efficiency of photovoltaic power generation and the low utilization rate of photovoltaic energy are one of the obstacles to the large-scale promotion and popularization of solar energy. [0003] 1. Photovoltaic utilization Due to the influence of external conditions such as light intensity, load and temperature, photovoltaic modules can operate at different maximum power points; the photovoltaic off-grid energy storage inverter in the prior art has the following problems: it cannot make When the external conditions of the photovoltaic power generation system change, the problem of running at the maximum power point quickly and accurately leads to low conversion efficiency of photovoltaic power generation. [0004] 2. How to integrate photovoltaic related resour...
Claims
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IPC IPC(8): H02J3/38H02J3/42H02J3/32H02J7/35H02J9/00
CPCH02J3/385H02J3/32H02J3/42H02J7/35H02J9/00H02J3/388Y02B70/30Y02E10/56Y02E70/30Y04S20/20
Inventor 嵇世卿田寿龙赵云
Owner 深圳市宝安任达电器实业有限公司