Wide Area Measurement System (WAMS) put into trial operation


Wide Area Measurement System (WAMS) was installed and put into trial operation until August 2019 in accordance with the decision of KEG08 Project Management Committee made on 27 March 2019. 

The new monitoring system will enable the System Operator to receive reliable data from synchronized vector measurement devices (PMU-sensors) and get a real picture of the power system state.

Delivery, commissioning and technical support of WAMS were provided by General Electrics. At the meeting, Sergey Chebotar, representative of General Electrics, presented the capabilities of the installed system, showed the principles of its online operation, and also expressed his vision for the implementation of the second component of the Wide Area Control System - WACS. Nurtaza Nurbol, project manager, reported on the performed works under the 'Implementation' phase of the project. 

The equipment was installed in five branches of the company included in the project perimeter and was commissioned and tested. 

The WAMS architecture covers 14 facilities in the direction of North-South Kazakhstan transit including EGRES-1,500 kV Shymkent and 500 kV Zhambyl substations. They are equipped with PMU-vector measurement devices, GPS clocks and switches ensuring the synchronization of measurement data, which are sent to servers at the National Dispatch Centre (Astana), and duplicated to the regional dispatch centre in Almaty. This measure is necessary to backup resources.

Measurement data are monitored using e-terraphasorpoint software. 

The relevant certificates were signed under all acceptance works. Thus, the implementation of the first component of the project enters the trial operation stage. 

The Management Committee approved the terms of reference for development of the feasibility study of the second component 'Development of WACS algorithms and automation on the basis of WAMS synchrophasor measurements'. The period for service procurement of feasibility study development is April - May 2019.