Markus Kraiczy

TL;DR: A methodology for assessing the technical potential and economic potential of autonomous voltage control strategies to increase the hosting capacity of low voltage grids and a coordinated control approach, using the reactive power capabilities of the inverters as well as the on-load tap changer are presented.

TL;DR: The results show that the impact of PV RPC on the number of OLTC switching operations and the effectiveness in parallel operation can differ considerably between the applied PV RPC strategies.

TL;DR: In this paper, the authors investigated the technical and economic potential of autonomously operating voltage control strategies in low voltage grids with high photovoltaic penetration, and compared the investment and operational costs for conventional grid extension measures with those resulting from the application of autonomous voltage control strategy over a period of 10 years, using real measured load and generation data.

TL;DR: The simulations show that local reactive power provision methods as well as temporal active power output curtailment methods are capable of reducing the necessity of a voltage-driven grid reinforcement, however, the economic benefit of those voltage control strategies highly depends on the parameterization of the respective control algorithm.

TL;DR: In this paper, a grid planning approach for reactive power management at the transmission-distribution interface with the support of distributed generators (DGs) is introduced, and an availability analysis of reactive power support is performed for different generation types at the distribution level, like hydro, thermal, wind and photovoltaic power plants.