A system in the process of restoration has 1000MW of synchronized generation and 700 MW of connected load. What amount of load should be shed to raise the frequency by 0.5 Hz?

To determine how much load should be shed to achieve a frequency increase of 0.5 Hz in a power system restoration scenario, it is essential to understand the relationship between load, generation, and system frequency.

In a balanced power system, the generated power must equal the connected load for the system to maintain a stable frequency. When the generation is 1000 MW and the load is at 700 MW, there is already a surplus of 300 MW. However, the concern here is about generating sufficient frequency response.

The frequency in a power system is influenced by changes in load and generation. When load is shed, the remaining system frequency can increase, depending on the characteristics of the system and the amount of load that is removed. In this specific scenario, shedding some of the load will help increase the frequency.

The relationship between the frequency change and the amount of load shed can often be approximated by using a system frequency response characteristic, known as the frequency response coefficient, which is defined as the amount of frequency change per MW of load change.

In this context, if a frequency increase of 0.5 Hz is desired, it can often be estimated that shedding a specific amount of load (in MW) will result in a corresponding frequency