PRIMARY FREQUENCY CONTROL THROUGH SIMULATED DROOP CONTROL WITH ELECTRIC LOADS

摘要

In a frequency control system, a system controller assigns load-specific threshold frequencies to electrical loads of a fleet of electrical loads. Load controllers perform load monitoring and control operations for controlled electrical loads of the fleet including (i) comparing a measurement of the electrical frequency with the threshold frequency assigned to the controlled electrical load and (ii) operating the controlled electrical load based on the comparison. For example, each load controller may perform operation (ii) by turning the controlled electrical load on if the measurement of the electrical frequency is greater than the threshold frequency assigned to the controlled electrical load, and turning the controlled electrical load off if the measurement of the electrical frequency is less than the threshold frequency assigned to the controlled electrical load. The threshold frequencies may be assigned based on State of Charge (SOC) values for the loads.

主权项

1. A frequency control system providing frequency control for an a.c. electrical power grid operating at an electrical frequency using a fleet of electrical loads powered by the electrical power grid, the frequency control system comprising:
a system controller comprising an electronic data processing device programmed to assign load-specific threshold frequencies to electrical loads of the fleet of electrical loads; and load controllers controlling the electrical loads of the fleet of electrical loads, wherein each load controller comprises a microprocessor or microcontroller programmed to perform load monitoring and control operations for a controlled electrical load of the fleet of electrical loads including (i) comparing a measurement of the electrical frequency with the threshold frequency assigned to the controlled electrical load and (ii) operating the controlled electrical load based on the comparison.