Solar / wind energy inverter monitoring system application program

First, the application background

1. Solar energy and wind power generation are the national “Twelfth Five-Year Plan” key planning projects and one of the fastest growing industries.

2. The inverter in the solar / wind power generation system is mainly responsible for converting the direct current output of the solar panel / wind generator into a regulated and stabilized alternating current feeding grid, which is a key device for the grid connection of the solar / wind power generation system and the grid.

3. At present, there are many manufacturers of inverters. In addition to providing inverter equipment, relevant communication equipment is also provided to monitor various operating parameters of the inverter such as power generation, total power generation time, current current voltage and radiation. Degree / wind speed, etc., to improve the management capabilities of solar / wind power generation systems.

However, at present, there are the following problems in the monitoring and management of the inverter:

â—† The network monitoring equipment provided by the inverter manufacturer is not a gift, and the communication equipment must be purchased separately after purchase. It is not a professional network monitoring system. The monitoring and management functions are single and cannot meet the monitoring and management requirements of the system.

â—†The communication protocols of network monitoring devices provided by different inverter manufacturers are different, so they are not compatible with inverters of other manufacturers, which greatly limits the scalability of power generation systems.

â—†Solar/wind power generation runs in a harsh and ever-changing environment all year round, requiring timely response to any problems that occur during operation, and therefore has strict requirements for the monitoring system to adapt to harsh environments and reliability.

â—† In order to improve conversion efficiency and safety, each or every solar panel/wind generator in the power generation system is equipped with an inverter, which requires cluster monitoring of dozens or hundreds of inverters. The original network communication system can not meet the requirements of fast response, stable and reliable

Second, system requirements

1. System coverage is large, flexible networking

2. Real-time monitoring of inverter information and alarms, able to respond quickly

3. The system is stable and reliable, and can adapt to the harsh and varied external environment test

Third, four letter solutions

Program features:

â—†Based on GPRS communication mode networking, the architecture cost is low, and data transmission is stable and reliable.

â—†IP MODEM collects inverter information in real time and transmits it to the control center through wireless network to realize real-time monitoring and

Quick response

â—†The control center is composed of control software, server, dispatch center, etc.

Four letter program and product advantages:

â—† Active reporting, real-time transmission. Using the four-letter F2114 IP MODEM as a network transmission terminal, it can actively take real-time

The collected inverter information is transmitted to the control center.

â—†F2114 IP MODEM based on GPRS communication mode has the advantages of simple and flexible networking and stable and reliable transmission.

The system is scalable.

â—†F2114 supports primary and secondary dual-center backup, and can support up to five data center synchronous communication, system security and spirit

Strong activity.

â—†Sixin F2114 IP MODEM adopts industrial grade transmission module, which can adapt to the harsh and varied solar/wind power station.

environmental impact.

â—†F2114 provides 5 I/O ports, supports 5 digital inputs and outputs, and can not only monitor inverter status information.

It can also monitor other information such as power generation, operating time, current and voltage and other parameters.

Attachment: Four letter F2114 GPRS IP MODEM product features

â—†Using high-performance industrial-grade wireless modules and 32 -bit communication processors

â—† Low power design, the lowest power consumption can be as low as 1mA

â—† WDT watchdog design, complete party drop mechanism to ensure that the data terminal is always online

â—† Convenient system configuration and maintenance interface

â—† Support primary and secondary dual data center backup transmission and multi-data center synchronous transmission ( 5 data centers)

â—†Support APN/VPDN

â—† Provide 5 channels of I / O , can achieve 5 digital input and output, compatible with 2 pulse output, 2 analog input, 2 pulse counting function

â—† Support access to the center based on domain name and IP address

â—† Embedded standard TCP/IP protocol stack for transparent data transmission

â—† Standard easy to use, power on can enter data transmission status