CN203376458U

CN203376458U - Off-grid photovoltaic power station storage battery monitoring system

Info

Publication number: CN203376458U
Application number: CN201320432790.1U
Authority: CN
Inventors: 于杰; 郭彬
Original assignee: MENGZHOU ZHUOLUN OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: MENGZHOU ZHUOLUN OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2014-01-01
Anticipated expiration: 2023-07-19

Abstract

The utility model discloses an off-grid photovoltaic power station storage battery monitoring system comprising a monitoring host, an acquisition module, a discharging module, a communication module, and an I/O control display module. The monitoring host is respectively connected with the acquisition module, the discharging module, the communication module, and the I/O control display module. The monitoring system is advantageous in that the capacity of the storage battery pack and various parameters of the discharging process can be effectively monitored, and at the same time, the alarming of the faults such as the over-limited voltage, the over-limited temperature, and the over-limited voltage divided difference can be realized; a plurality of expandable I/O ports can be provided, and the connection with the related devices can be facilitated; and at the same time, a plurality of communication ports are provided, and the communication requirements of different systems can be facilitated.

Description

A kind of from net type photovoltaic plant Monitored System of Industrial Storage Cell

Technical field

The utility model relates to the accumulator monitoring technical field, relates in particular to a kind of from net type photovoltaic plant Monitored System of Industrial Storage Cell.

Background technology

Along with improving constantly of social progress and informationization, automaticity, people further deepen the degree of dependence of the industries such as electric power, communication, finance, traffic, also just the reliability of electric power system are had higher requirement.No matter, in electricity substation, telecommunications room, mobile base station or ups system, accumulator plays an important role in system as standby power supply.Accumulator is in the floating charging stand-by state at ordinary times, be transformed into direct current to the load power supply by electric main through rectifying installation, and under alternating current dead electricity or other accident state, accumulator is unique energy resource supply person of load, once go wrong, electric power system will face paralysis, cause equipment to stop transport and other great interruption of service.

At present, detection method commonly used terminal voltage, internal resistance and the test of the property checked discharge capacity for measuring battery.And the terminal voltage of accumulator with capacity without corresponding relation.Terminal voltage under floating charge state is difficult to truly reflect accumulator property at ordinary times, even the accumulator of poor performance also may record qualified voltage under floating charge state.Once and have a power failure, while needing battery discharge, this battery just possibly can't guarantee under accident condition to discharge requirement, thus expansion accident scope.

The utility model content

In order to overcome above-mentioned defect, it is a kind of from net type photovoltaic plant Monitored System of Industrial Storage Cell that the utility model provides.

To achieve these goals, the technical solution of the utility model is: a kind of from net type photovoltaic plant Monitored System of Industrial Storage Cell, it is characterized in that: comprise that monitoring host computer, acquisition module, discharge module, communication module and I/O control display module, monitoring host computer is controlled display module with acquisition module, discharge module, communication module and I/O respectively and is connected.

Further, described communication module is provided with one or more of lan port, RS232 port, RS485 port, MODEM port.

The beneficial effects of the utility model are: battery capacity, discharge process parameters that can the effective monitoring accumulator, simultaneously can transfinite to voltage, temperature over-range, the equal difference of voltage transfinite etc. carried out fault alarm, and there are a plurality of extendible I/O ports, the convenient associate device that connects, be provided with multiple PORT COM simultaneously, facilitate the communication need of different system.

The accompanying drawing explanation

Fig. 1 is structural representation block diagram of the present utility model.

Fig. 2 is system main circuit diagram of the present utility model.

Embodiment

Below in conjunction with specific embodiment, the utility model is described further.

As shown in Fig. 1 Fig. 2, a kind of from net type photovoltaic plant Monitored System of Industrial Storage Cell, comprise that monitoring host computer, acquisition module, discharge module, communication module and I/O control display module, monitoring host computer is controlled display module with acquisition module, discharge module, communication module and I/O respectively and is connected.

As shown in Figure 2, main circuit divides three parts: acquisition module, discharge module and monitoring module.The function of acquisition module is that any variations such as single battery voltage, battery set charge/discharge electric current, temperature are detected rapidly and accurately.After battery voltage signal is sent to acquisition module, high speed electronic switch will be read every batteries voltage, and deliver to one 16 high-speed a/d conversion chips, voltage analog signal is converted to digital signal and gather for CPU.CPU delivers to monitoring host computer or other watch-dog by the digital signal after processing through the RS485 bus, for computing machine, carries out data analysis and judgement.Discharge module has adopted powerful electronic load technology, can moment bears up to 150A(or 200A) dash current, to realize the detection to the battery load ability.Discharge module also can be used as long-time discharge load, realizes the property the checked test of battery capacity and the activation of battery are safeguarded.Native system has adopted High Performance DSP and large capacity 4M FLASH, has not only guaranteed mass data is carried out to high speed analysis and processing, and has realized the power down of data is preserved.After acquisition module is sent to monitoring host computer by the cell voltage digital signal, this signal is admitted to CPU and carries out analyzing and processing, and sentence read result also shows.Under the operational monitoring state, system computer is the operational monitoring program, to every batteries voltage, batteries charging electric current, temperature is gathered and judge, the battery of the threshold voltage that exceeds setting reported to the police and shown.Under discharge condition, system computer will move the electric discharge monitoring facilities, detect the flash-over characteristic of every batteries, by the comparison with set model, the quality of battery is carried out to interpretation, by output display as a result, and pointed out warning to dead battery, the automatic stop electric discharge.

The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection domain of the present utility model.

Claims

1. one kind from net type photovoltaic plant Monitored System of Industrial Storage Cell, it is characterized in that: comprise that monitoring host computer, acquisition module, discharge module, communication module and I/O control display module, monitoring host computer is controlled display module with acquisition module, discharge module, communication module and I/O respectively and is connected.

2. according to claim 2 from net type photovoltaic plant Monitored System of Industrial Storage Cell, it is characterized in that: described communication module is provided with one or more of lan port, RS232 port, RS485 port, MODEM port.