Which control strategy is commonly used in MTDC systems to manage power flow among multiple terminals?*Voltage-sourced controlFrequency division multiplexingDroop controlPhase locked loops

The control strategy commonly used in Multi-Terminal Direct Current (MTDC) systems to manage power flow among multiple terminals is Droop Control.

Here's a step-by-step explanation:

1. In an MTDC system, there are multiple terminals or nodes where power can be injected or extracted. These nodes are interconnected through a network of DC transmission lines.

2. The power flow in such a system needs to be controlled to ensure stability and efficiency. This is where control strategies come into play.

3. Droop Control is a strategy that is commonly used in such systems. It is a method where the output power of a terminal is controlled by adjusting its voltage.

4. In Droop Control, a decrease in the terminal voltage results in an increase in the power output and vice versa. This allows for a balance in power flow among the different terminals.

5. This strategy is particularly useful in MTDC systems as it allows for decentralized control. Each terminal can independently adjust its power output based on its voltage, without the need for communication with other terminals.

6. Other control strategies like Voltage-sourced control, Frequency division multiplexing, and Phase locked loops are not typically used for power flow management in MTDC systems.