Basic Comparison of Primary Control Between Load Frequency Control and Angle-Based Control

The energy balance is ensured in the power system with load frequency control (LFC). The frequency is the indicator of the energy balance between active power generation and consumption. To achieve CO2 emission-free power generation, power generation from renewable energy sources (RES) will increase. At the same time, generation from conventional power plants will decrease until they are shut down. As a result, the share of converters without physical inertia will increase. In contrast, the share of running rotating masses will be negligible. To ensure a secure power system, the adjustment of power system operation in the new framework is required. A perspective method for power system operation can be the power system operation with angle-based control. In this paper, a basic comparison of primary control between LFC with Synchronous generator (SG) and angle-based control with voltage source converter (VSC) is made. An RMS simulation is performed for a use case in the 39 bus New England system.