ELECTRICAL GRID CONTROL SYSTEM, ELECTRICAL GRID CONTROL METHOD, AND POWER CONVERSION APPARATUS

摘要

An electrical grid control system includes a plurality of power conversion apparatuses each storing active power relationship information indicating a relationship between an active power control level representing a level of control for active power output to an electrical grid, and a connection point frequency being a frequency at a connection point to the electrical grid; and a control apparatus that repeatedly receives information indicating a system frequency measured in the electrical grid, determines the active power control level based on the system frequency, and transmits the active power control level to the plurality of power conversion apparatuses. Each power conversion apparatus repeatedly measures the connection point frequency, receives the active power control level from the control apparatus, and controls the active power based on the measured connection point frequency, the received active power control level, and the active power relationship information.

主权项

1. An electrical grid control system comprising:
a plurality of power conversion apparatuses each connected with an electrical grid and each configured to convert DC power from a power source into AC power, output the AC power to the electrical grid, and store active power relationship information indicating a relationship between an active power control level representing a level of control for active power outputted to the electrical grid and a connection point frequency being a frequency at a connection point to the electrical grid; and a control apparatus configured to repeatedly receive information indicating a system frequency measured in the electrical grid, determine the active power control level based on the system frequency, and transmit the active power control level to the plurality of power conversion apparatuses, wherein each power conversion apparatus is configured to repeatedly measure the connection point frequency, receive the active power control level from the control apparatus, and control the active power based on the measured connection point frequency, the received active power control level, and the active power relationship information.