In recent years, as people concerned about environmental issues, global demands for clean energy, higher and higher. The company has been committed to the development of solar power generation power conditioning system (PCS).
With the development of solar power system panel case, solar panels for multiple parallel adjustment system, this paper parallel to reduce the cost and number of additional methods are introduced.
The system is characterized by a solar panel and inverter unit connected to the system group (AC connection), the summary of system protection and other information sent to the main post as a signal controller, and thus each unit inverter controller ( through the RS485 communication link to the daisy chain connection).
By using our standard DSP board (PE-PR0/C32), can achieve the above specifications of the MPPT control and system integration. On the basis of the substrate to add communications capabilities to form part of the control panel shown in Figure 2. Power supply design by the end user.
When the day-inch design is in the company’s standard products based on DSP development board, so the R & D sample machine only 3 months, greatly reducing the development time, and soon entered the testing phase (PE-PR0 / C32: DSP using TI’s high-speed floating point type DSP TMS320C32).
Meanwhile, in order to reduce cost of sales, we have designed and developed using Renesas’s RISC CPU SH7065 (fixed-point type) of the new control board. By using the RISC CPU, the configuration can be cut and A / D converter and other expensive components, so that switch more fluid.
Development system based on the company, the core chip from the DSP (TMS320C32) into RISC CPU (SH7065) of the process, without due consideration to such factors as electrical pulse count significantly modify the program. This is because of its unique simulation using floating point, floating point to fixed-point and easy transfer between programs. These are available through the company’s standard library (PEOS) to achieve.
So far, the unit control panel the inverter sales in Japan more than 300 sets, and is still continuing production. Through our development system, we believe that is fully capable of assisting users in the process of product development to shorten development time, early mass production, and improve product quality.
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