DMS
(Distribution grid voltage stabilization function)

Stabilizing the distribution networks connected to a large amount of solar power

Summary

Stabilize distribution network by controlling the variation of distribution system voltage caused by the introduction of a large amount of solar power

Feature/Advantage

• High-voltage control system (Distribution voltage stabilization system) controls voltage using LRT, SVR, SVC, PCS and storage battery in high-voltage network and cooperating with multiple low-voltage control systems.
• High-voltage control system indicates specified power flow at the connection point to low-voltage network.
• Low-voltage control system contributes to control voltage in high-voltage network complying with the indicated power flow, and keeps proper voltage using storage battery, thermal storage device and PCS in low-voltage network.
• Forecasted demand and solar power generation are applied to the advance control.

DSM：Demand Side Management
PCS：Power Conditioning System
LDC：Line Drop Compensator
SVC：Static Var Compensator
LRT：Load Ratio Control Transformer
SVR：Static Voltage Regulator