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Empowering new energy generation enterprises to overcome the technical challenges of photovoltaic grid connection
Case detail
       

A certain new energy generation enterprise focuses on the field of distributed photovoltaic power generation. When promoting the research and development of efficient grid connection technology between photovoltaic power stations and distribution networks, it faces core technical challenges such as harmonic control and voltage fluctuation suppression. The R&D team has made breakthrough progress in optimizing the topology structure of photovoltaic inverters and innovating grid connected control strategies through extensive experiments, and related technical achievements have been documented in multiple academic papers. However, companies lack experience in how to transform the technical highlights in papers into commercially valuable patent assets and urgently need professional intellectual property agency support.

After receiving the demand, our company formed a special team consisting of patent agents and technical analysts in the field of power electronics. The team first conducted in-depth research on the academic papers published by the enterprise, combined with the industry pain points and technological development trends of distributed photovoltaic grid connection, and accurately positioned the innovation points. For example, in a paper on the control algorithm of photovoltaic inverters, the research and development team mentioned the "adaptive grid connection strategy based on model predictive control". Although it was not emphasized, the agent found that this strategy can effectively solve the stability problem of grid connection during sudden changes in lighting and has extremely high patent value.

Based on this, the agency team develops a patent layout plan of "core technology+peripheral improvement" for the enterprise. In the core patent application, with the theme of "Adaptive Model Predictive Control Photovoltaic Grid Connected Inverter and Control Method", the core logic, parameter adjustment mechanism, and hardware implementation of the control algorithm are defined in detail, and a rigorous claims protection system is constructed. At the same time, for peripheral technologies such as optimizing the cooling structure of inverters and fault diagnosis methods, utility model patents and design patents are simultaneously laid out to form a comprehensive intellectual property protection network.

In the patent examination stage, in response to the examiner's question about the "differentiation from existing grid control strategies", the agent, in conjunction with the company's R&D personnel, provided detailed experimental data comparison reports to clearly demonstrate the significant advantages of this technology in dynamic response speed, harmonic suppression effect, and other aspects. Through multiple rounds of feedback and communication, the core patent was ultimately authorized, and the scope of protection for the claims was not significantly reduced.

These patents not only provide legal protection for the distributed photovoltaic grid connected equipment of enterprises, but also become important chips for enterprises to participate in the formulation of national photovoltaic industry standards. With the advantage of patented technology, the company's photovoltaic inverter products have increased their market share in the domestic distributed power plant market by 15%, and have successfully reached a strategic cooperation with State Grid. The technology has been implemented in multiple new energy demonstration projects, with an annual sales revenue of over 200 million yuan, promoting the company's growth from a technology follower to an industry technology benchmark.

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