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基于ST公司的STEVAL-ISV013V1 250W太阳能模块解决方案

来源: 中电网
2019-04-11
类别:新能源
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文章创建人 拍明芯城

原标题:ST STEVAL-ISV013V1 250W太阳能模块解决方案

  ST公司的STEVAL-ISV013V1是250W DC/DC太阳能模块演示板.这种全集成模块设计用在分布式光伏架构的智能连接箱,是容易使用全保护的解决方案, 可实现光伏电池板的精密控制,诊断和保护. STEVAL-ISV013V1输入电压从10V到45V,输出电压从350V到430V,数字控制部分由STM32 MCU来管理,MPPT效率达到99%.本文介绍了STEVAL-ISV013V1主要特性和指标, 典型应用系统和采用32位MCU STM32的MPPT算法框图,以及250W太阳能模块电路图和材料清单.

  The STEVAL-ISV013V1 demonstration board is a fully integrated module designed for a smart junction box in distributed photovoltaic architecture. The module represents an easy-to-use, fully-protected solution to implement precise photovoltaic panel control, diagnostics and protection.

  The STEVAL-ISV013V1 demonstration board is the base element for a new photovoltaic panel configuration able to increase the panel energy produced and to simplify the photovoltaic field design and implementation. Furthermore, the maintenance cost will be reduced as the device is able to monitor the status of the individual panels and to communicate these data to a remote control unit. The STEVAL-ISV013V1 demonstration board uses an isolated converter, which is the input of the panel output. This voltage is stepped up to the voltage defined by the inverter, needed to create a sinusoidal output with a magnitude big enough to transfer energy to the grid.

  The module features an embedded MPPT (maximum power point tracking) algorithm based on the “perturb and observe” (P&O) technique to search for the best operating point of the panel in order to maximize the energy produced in every environmental condition.

  The module is internally protected from a surge or lightning reaching the connection wires.

  The STEVAL-ISV013V1 demonstration board includes a PLM or ZigBee® module for communication. The PLM is supported by a proprietary protocol stack for networking. A gateway to RS485 in modbus is available. The unit is designed to operate in a harsh environment, offering a high level of protection and very high reliability.

  The ZigBee® module is based on system-on-chip (SoC) technology, integrating both IEEE 802.15.4 radio transceiver and computing capabilities and is designed to run a fully compliant ZigBee® PRO network protocol stack.

  The STEVAL-ISV013V1 is a smart junction box for photovoltaic panels. It is a high efficiency isolated DC-DC boost converter operating in the input voltage range from 10 V to 45 V and able to step up the panel voltage to the input voltage of a DC-AC converter. In addition, it provides metering and monitoring features and implements some safety functions like fire and anti-theft protections.

  STEVAL-ISV013V1主要特性:

  Input voltage range from 10 V to 45 V

  Output voltage range from 350 V to 430 V

  Digital control section managed by the STM32

  Several I/O connectors to be connected to the photovoltaic panel (input side) and the inverter (output side)

  Ready to be connected to a PLM or ZigBee® external module for communication

  Possibility to meter and monitor the status of the panel

  Fire and anti-theft protections

  RoHS compliant

  图1. STEVAL-ISV013V1 250W太阳能模块外形图

  STEVAL-ISV013V1 250W太阳能模块包括:

  ● DC-DC converter

  ● Auxiliary power supply

  ● Digital control section

  ● I/O connectors

  ● PLM - ZigBee external module connector

  STEVAL-ISV013V1 250W太阳能模块主DC/DC转换器指标:

  图2.STEVAL-ISV013V1 250W太阳能模块典型应用系统

  图3.采用32位MCU STM32的MPPT算法框图

  图4.STEVAL-ISV013V1 250W太阳能模块电路图:电源板和辅助电源

  图5.STEVAL-ISV013V1 250W太阳能模块电路图:传感电路和栅极驱动器

  图6.STEVAL-ISV013V1 250W太阳能模块电路图:MCU和电平转换器

  STEVAL-ISV013V1 250W太阳能模块材料清单:


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标签: ST 太阳能模块

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