Wireless Communication system for Stacker Reclaimer Application. Sheetal Wireless Technologies Pvt Ltd. Pune

Transcription

1 Wireless Communication system for Stacker Reclaimer Application. at Korba Super Thermal Power Station NTPC, Korba By Sheetal Wireless Technologies Pvt Ltd. Pune

2 General Description of Project Project: Stacker Reclaimer to CCR IO Communication using Wireless Customer Information: NTPC Korba, Dist. Bilaspur. Solution for Wireless Communication by: Sheetal Wireless Technologies Pvt. Ltd., Pune. PO No: M dated: 21/05/2010 Objective: Wireless IO Communication over a distance of about 500ms, for Moving Machines to replace the CRD (Control Rolling Drum) wired connections. Project Completion : 07 December 2010

3 General Description of Project KSTPS, NTPC Korba, : In Coal handling plant Stacker Reclaimer were using control Reeling Drum (Flexible control Cable ), CRD motor, slip rings for carrying field IO signals to CHP control room for monitoring and controlling of the machines. To avoid frequent breakdown of machines due to break in control cables, to increase the system reliability and to avoid routine maintenance cost, NTPC has opted the wireless solution for establishing the communication link between Stacker Reclaimer and Control centre.

4 WHY WIRELESS: To reduce the Installation time To make use of the flexibility which only wireless can offer Ease & Speed of deployment Easy for expansion Cost reduction, compare to cabled solutions Negligible maintenance cost Ease of implementation and installation Real-time Alarm Annunciation

5 TP 7 side Signal Details for Stacker CCRD side Slip ring No Slip ring No. Description 1 Common for S/R 24 V DC from PLC Slip ring Description No. 3 Stacking On 4 Reclaiming On A Conv. Run status 11,5-6 NA EPB ( Breaker ) WTI (Hi-Hi)-110 C 13-9 WTI (Hi)+ OTI (Hi) 19 C IInd stage (No trip) 15-2 Telephone (Trip) 14 DC(-Ve) 13 DC(+ve) 11 DC (-Ve) 10 DC(-Ve) 9 DC(-Ve)

6 System Selection Criteria & Consideration For the above communication system, license free band is considered due to following reasons IEEE g is Open Standard: So License is not required. 54Mbps Signaling rate over 20MHz channel. AES Encryption technique is used for data security. 12 digital signals are transmitted from each stacker for status Indication & 4 Digital signals are transmitted from CHP CCR to each stacker to control multiple processes. The device provides flexibility to user to go online to access remote PLC, Edit Upload & download the PLC programs remotely. This system provides full duplex Voice communication between stacker PLC cabin & CHP CCR for communication between Operation team & machine operator, which was not provided by the previous system. This system can be terminated in Plant EAPBX as well. Huge bandwidth can be used for video surveillance of stacker machines as future expansion.

7 Equipments used Radio Modems : Prosoft Technology : Model : RLX-IB-IHG Frequency Band : 2.4 GHz IO Transfer : Rockwell PLC

8 Network Architecture Diagram Micrologix DO+ 12DI Ethernet Switch VOIP MG3000 CHP Control Room Telephone Unit RLX-IB- IHG RLX-IB- IHG Ethernet Switch RLX-IB- IHG Ethernet Switch RLX-IB- IHG Micrologix DI+4DO Micrologix DI+4DO Micrologix DI+4DO Ethernet Switch VOIP MG3000 Telephone Unit Stacker3 Telephone Unit Stacker2 VOIP MG3000 Stacker1 VOIP MG3000 Telephone Unit

9 NTPC CHP Area Satellite Image Stacker-3 rail track Stacker-2 rail track Stacker-1 rail track Coal Yard Crusher house CHP CONTROL ROOM NTPC Power Generation unit buildings

10 Installation Photos Stacker- 1 Stacker-2 Coal Yard Stacker-3 Antenna at roof top of crusher house -1 building Photo taken from Crusher House -1 Building Antenna and Radio modem junction box at same pole Antenna and pole installation Photo Taken from stacker

11 Radio Installation Antenna Installation

12 CONTACT Maneesh Bopardikar Sheetal Wireless Technologies Pvt. Ltd. Pune , Maharashtra, INDIA Mob: Ph / / bopardikar@sheetalwireless.com sales@sheetalwireless.com