Electricity and Control March 2016

ENERGY + ENVIROFICIENCY: FOCUS ON DRIVES, MOTORS + SWITCHGEAR

• To realise proper design you need to understand the parameters defining the system. • Mechanical parameters can be calculated and matched to motor and drive systems. • Matching load and motor rotor inertia is a key component in the design described.

Acknowledgement We thank the directors of Frigotherm Engineering for permission to publish details of the machine.

take note

Glyn Craig is a director of Techlyn. He has been involved in the mechatronics field for many years. Techlyn has represented Galil Motion Control since 1994, and offers free training on their products. Enquiries: Tel. 011 835 1174 or email glyn@techlyn.co.za

References [1] Craig G. A bench top motor dynamometer for drives testing. Electricity and Control, May 2015. [2] Craig G. Brushless Servo operating principles. Electricity and Control, July 2015.

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ENERGY + ENVIROFICIENCY: FOCUS ON DRIVES + MOTORS

South African solar power plant wins PFI solar deal of the year

The government's Renewable Energy Independent Power Producer Procurement Programme (REIPPP) is rapidly contributing to South Africa's growth as one of the fastest growing renewable energy sec- tors in the world.The Minister of Energy has been determined that 3 725 megawatts (MW) of renewable energy sources is required to ensure the continued uninterrupted supply of electricity. According to Hartmut Winkler, Professor of Physics at the Uni- versity of Johannesburg, the REIPPPP contributed to over 6 000 MW to date. It is envisioned that this figure should reach 9 600 MW of solar power capacity by 2030. All completed solar power plants form part of South Africa's electricity supply and are fully linked to the Eskom power grid. Currently, solar power already contributes to more than 1 MW onto the grid on a sunny day. The Ilanga 1 CSP Project recently won the 2015 Project Finance International (PFI) solar deal of the year.The award ceremony took place on 3 February 2016 in London.The plant is located about 30 kilometres east of Upington and forms part of the Karoshoek Solar Thermal Park. Ilanga 1 is a 100 MW parabolic trough plant with a thermal energy storage system. Apart from the significant job-creating opportunities, the project promises to deliver over half a billion Rand annually to socio-eco- nomic development over a 20 year period.The surrounding areas will benefit from these socio-economic development initiatives. Jen Stolp, partner in Baker & McKenzie's banking and finance department, acted as lender counsel. Lenders of the project included Development Bank of Southern Africa (DBSA), the Public Invest- ment Company (PIC), the Industrial Development Corporation (IDC), Nedbank, Investec, Standard Bank and ABSA. "The Ilanga 1 CSP Project aligns perfectly with ABSA's CSI initia- tives aimed at enhancing business relevance, sustainability and

social upliftment. It is great to see projects geared at creating a bet- ter future recognized at the PFI awards", said Shaun Moodley, Vice President Banking-Resource and Project Finance at ABSA Capital, regarding ABSA's involvement in the project. Emile Malan, Principal: Energy at Nedbank, said: "Nedbank is committed to green funding and supporting sustainability initiatives, and we're proud to be part of the Ilanga 1 project. It is projects like these that help us build on our long history of promoting environ- mental responsibility." Email: louise.crouch@epicmslgroup.com

The Ilanga 1 CSP Project recently won the 2015 Project Finance International solar deal of the year. The award ceremony took place in London. In the photo are members of the Development Bank of South- ern Africa (DBSA) and Baker & McKenzie’s Jen Stolp at the award ceremony. (Credit: Infrastructure Investment Awards 2015).

Electricity+Control March ‘16

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