Integration of renewable power plants

Increase the share of renewable generation without compromising reliability.

The demand for generation from renewable energy sources (RES) is growing fast all around the world. Developers are pushing the boundaries of technology, producing larger wind turbines and more efficient photovoltaic modules, while investors are eyeing a great deal of new RES projects.

With latest technology know-how, PTI Consulting supports developers and plant operators in all phases of RES power plants – from RES power plant design to grid code compliance assessment and system integration – for ensuring safe, reliable, and cost-efficient operations.

Generation capacity expansion

Efficiently plan and integrate new generation capacity.

Capacity expansion planning today is characterized by higher insecurity and the unpredictability of short-term fluctuations in the energy markets. PTI Consulting delivers a broad range of services to assess the impact of increased generation capacity on the grid: from grid extension planning, and feasibility studies to detailed stability analyses for defining the necessary equipment such as converter-based infeeders, and transient studies (switching, lightning, inrush studies) – all aiming at ensuring stable power network performance.

Integration of drives

Ensure network stability for process automation.

Powerful converters such as large, variable speed drives or electrolysis rectifiers require filter circuits for harmonic mitigation and power factor correction, based on predefined admissible operating criteria. With detailed knowledge of converters and their effects on power systems, PTI consultants support plant operators in determining a technically suitable and cost-efficient solution that ensures the stability of the power system. This includes analyzing and optimizing existing protection schemes and settings, as well as the selection and design of harmonic filters.

Integration of BESS

Ensuring grid operational reliability with multi-frequency stability assessments for grid-connected Battery Energy Storage systems (BESS)

Integrating Battery Energy Storage systems (BESS) into the power grid creates exciting opportunities but also presents diverse technical challenges. One significant concern is control interaction-based instabilities, which can occur across a wide frequency range - from sub-synchronous to super-synchronous frequencies. PTI Consulting provides comprehensive multi-frequency stability assessments to ensure seamless BESS integration. Through impedance-based stability analysis, small and large signal stability studies in the time domain, the combined system performance under various operating conditions and scenarios is validated. Benefit from our adherence to all relevant Transmission System Operator (TSO) requirements, fast turnaround ensured by a high-speed in-house EMT simulation setup, and the convenience of a single point of contact for all power system study needs.