致力于亚太地区市场的领先半导体元器件分销商---大联大控股宣布，其旗下世平联合上海南潮信息科技推出基于TI TM4C1294NCPDT光伏电站监控运营解决方案。

此方案是为协鑫能源旗下的能源理财平台提供的一套光伏电站监控运营解决方案，可实时监控电站的发电量及运行健康状态。电站中安装了一个Ruff物联网智能网关(即采集器)，采集器一端连着逆变器，用来监控电站的运行状态，以判断故障来源及因素;采集器另一端连接着电表，直接读取发电量数据，精确采集电量数据。数据通过采集器收集后，传输到云端。云端通过算法分析及处理，将电站的一系列数据传输到终端APP以及PC端，由此获取电站的实时运行状态及收益信息。

图示1-大联大世平联合上海南潮推出基于TI TM4C1294NCPDT光伏电站监控运营解决方案系统架构图

功能描述

采集逆变器数据：电压、电流、有功功率、无功功率、发电效率、工作温度等;

采集电表数据：并网电量、用电电量;

通过网关的实时状态监控，判断电站是否出现异常状态，进行实时报警响应;

终端客户可直观的查看通过发电量计算出的日、月、累计收益，实时掌握投资回报率;

通过发电量计算出二氧化碳、二氧化硫、烟尘减排量以及煤减排量。

产品特性

完成对全网2000多个分布式光伏发电设备;

(电表、逆变器)的实时监控及数据上传;

客户通过使用基于Ruff OS网关及对外SDK工具，完成了对原有光伏设备接入的扩展和改造，使原来单个点2-3天的接入时间降低至半天完成;

在终端数据可视化场景中，可以实时获取电站的发电量及当日收益数据。

图示2-大联大世平联合上海南潮推出基于TI TM4C1294NCPDT光伏电站监控运营解决方案照片

TM4C1294NCPDT

Tiva C 系列 TM4C1294NCPDT 微控制器数据表

描述

Tiva™ C Series microcontrollers integrate a large variety of rich communication features to enable a new class of highly connected designs with the ability to allow critical, real-time control between performance and power. The microcontrollers feature integrated communication peripherals along with other high-performance analog and digital functions to offer a strong foundation for many different target uses, spanning from human machine interface to networked system management controllers.

In addition, Tiva™ C Series microcontrollers offer the advantages of ARM's widely available development tools, System-on-Chip (SoC) infrastructure, and a large user community. Additionally, these microcontrollers use ARM's Thumb®-compatible Thumb-2 instruction set to reduce memory requirements and, thereby, cost. Finally, the TM4C1294NCPDT microcontroller is code-compatible to all members of the extensive Tiva™ C Series, providing flexibility to fit precise needs.

Texas Instruments offers a complete solution to get to market quickly, with evaluation and development boards, white papers and application notes, an easy-to-use peripheral driver library, and a strong support, sales, and distributor network.

特性

Performance

ARM® Cortex™-M4F processor core

120-MHz operation; 150 DMIPS performance

1024 KB Flash memory

256 KB single-cycle System SRAM

6KB of EEPROM

Internal ROM loaded with TivaWare™ for C Series software

8-/16-/32- bit dedicated External Peripheral Interface (EPI) for peripherals and memory

Security

Cyclical Redundancy Check (CRC) hardware with 16-/32-bit Hash function that supports four CRC forms

Support for four tamper inputs and configurable tamper event response

Communication Interfaces

Eight Universal Asynchronous Receivers/Transmitters (UARTs)

Four Quad Synchronous Serial Interface (QSSI) modules with Bi-, Quad- and advanced SSI support

Ten Inter-Integrated Circuit (I2C) modules with four transmission speeds including high-speed mode

Two Controller Area Network (CAN) 2.0 A/B controllers

10/100 Ethernet MAC

Ethernet PHY with IEEE 1588 PTP hardware support

Universal Serial Bus (USB) 2.0 OTG/Host/Device with ULPI interface option and Link Power Management (LPM) support

System Integration

ARM® PrimeCell® 32-channel configurable Micro Direct Memory Access (µDMA) controller

Eight 16/32-bit General-Purpose Timer (GPTM) blocks

Two watchdog timers

Low-power battery-backed Hibernation module

15 physical General-Purpose Input/Output (GPIO) blocks

Advanced Motion Control

One Pulse Width Modulator (PWM) module, with four PWM generator blocks and a control block, for a total of 8 PWM outputs

One Quadrature Encoder Interface (QEI) module

Analog Support

Two 12-bit Analog-to-Digital Converter (ADC) modules, each with a maximum sample rate of one million samples/second

Three independent integrated analog comparators

16 digital comparators

One JTAG module with integrated ARM Serial Wire Debug (SWD)

128-pin TQFP package

Operating Range (Ambient)

Industrial (-40°C to 85°C) temperature range

Extended (-40°C to 105°C) temperature range