Case Study

Case Study on Canal Automation

Posted on Jan 19, 2015 by MSPL. .. 42 comments.

Indira Gandhi Nahar Project

Background:

Indira Gandhi Nahar Project (IGNP) is revolutionary approach to boost the agricultural productivity in Rajasthan.

It is planned to establish monitoring and control system based on SCADA, for precision measurement, management, and monitoring of Indira Gandhi Canal Automation Project to achieve even, equal timely distribution of the water.

Water Resource Department Government of Rajasthan has planned 'Restructuring Program' under which, installed automation system for IGNP is taken up as a 'turnkey' project.

Challenges faced:

It is observed that the canals are susceptible to change the profile quite frequently due to heavy siltation.

Canal flow varies due to frequent change in canal profile. It was proposed to have the canal profile to be monitored periodically using electronic canal profiling equipments to cope up with the situation.

As the locations are Remote the availability of Mains Power is remote so the total system is operated on Solar Power.

 

Strategic Implementation of the system:

Data from the measurement equipments like canal level / Flow sensor, gate position sensor, limit switches etc., are collected automatically and stored by the data acquisition, storage and transmission unit (DASTU) at pre-programmed time interval of 15 minutes.

Collected data is transmitted to the Master Stations hourly using VSAT wireless link.

Each Field and Regional SCADA station receives data from Master station, through VSAT communication link.

The equipments for flow measurement, profile monitoring, gate control, gate position indication, solar power system are designed such that it Works in very adverse condition.

The flow measuring and profile monitoring equipments are Doppler / Ultrasonic type.

The solar power supply is designed to provide the power to all equipment for 3 sunless days.

Side looking Doppler is installed at designated point, to measure velocity, and discharge accurately.

Considering heavy siltation problem the canal profile will be monitored at regular intervals Four Doppler Canal profiler device are provided.

Side-looking Doppler sensor Designed for side mounting on the bridges, or canal walls.

Worldwide proven Velocity Index technique is used.

No calibration is required for life-time unless any physical damage happen to the instrument.

 

Operation of the system:

Data from the measurement equipments like canal level / Flow sensor, gate position sensor, limit switches etc., are collected automatically and stored by the data acquisition, storage and transmission unit (DASTU) at pre-programmed time interval of 15 minutes. Collected data is transmitted to the Master Stations hourly using VSAT wireless link.

Each Field and Regional SCADA station receives data from Master station, through VSAT communication link.

The telemetry communication system is based on hybrid data communication network.

DASTU at remote locations will acquire, store and communicate the data at measurement station to Master SCADA station at Jaipur and Master SCADA station at Jaipur communicates the collected/ calculated data to 3 Regional Station and 11 field stations.

The data acquisition system will convert raw field data to engineering units, will perform initial alarm or limit checking, and will pre-process data into forms suitable for the data processing function and database management.

Each field station has Data acquisition, Data storage and transmission facility, the data acquisition equipments also have interfacing With VSAT communication equipments.

The field stations data acquisition unit has remote configuration, digital display of field data facility.

System generate alarms in case of any unusual conditions like overtopping, power failure, gate failure, communication failure, any equipment failure.

The user-friendly menu driven SCADA software is provided for viewing the data of individual field Station in GUI.

The SCADA software will receive data after pre-defined time interval and also have a facility to collect the data from individual field station on request as and when required. The software has a facility for storage, view and printing of historical data with time stamp. Additional facility for transferring messages to SCADA stations is also provided. Password security is provided for all operations / activities.

Master Station functions to communicate with the Master Station at Bikaner, Regional Stations, and Field Stations. This station maintains the system database, and performs all interaction with the Operator via the workstation GUI interfaces.

The Master Station also performs alarm reporting, data and report logging, trending of measurements and historical archival of data. DATA Server at Jaipur is responsible for continuous updating of DATA on WEB server installed at DOIT Jaipur.

The user-friendly menu driven SCADA software is provided to view the data of individual Station in GUI. SCADA software will receive data at hourly interval and also have a facility to collect the data from individual station on request as and when required.

The software has facility for storage, view and printing of historical data with time stamp. Additional facility for transferring messages to SCADA stations is also provided. Password security is provided for all operations / activities.

Software Management Return module includes:

The sequential Event List for seasonal and rotational Operation

Seasonal Operational Events

Maintenance of Manually entered configuration data

Year-end processing run at the end of scheduled irrigation year.

Rotational Operation Events

Input of Rotation start date & end date

Canal flow data for main canal and all distributaries in for a given schedule at a given time at specified locations.

SCADA SOFTWARE Management Reports Module