Control device, power converter control method, and program
JP2026096232APending Publication Date: 2026-06-15KK TOSHIBA +1
Patent Information
- Application Number
- JP2024209907
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-15
AI Technical Summary
Technical Problem
Existing control methods for power converters in multi-terminal DC power transmission systems fail to appropriately manage droop characteristics, leading to instability and inefficiencies in operation.
Method used
A control device and method that sets first and second characteristic regions with predetermined droop characteristics, controlling the power converter to maintain output voltage within a predetermined range, and adjusts droop coefficients to accommodate fluctuations and faults, ensuring stable operation.
Benefits of technology
Enhances the controllability and operational continuity of power converters by maintaining output voltage within specified limits, even under fault conditions or power fluctuations.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026096232000001_ABST
Abstract
The objective is to provide a control device, a control method for a power converter, and a program that can more appropriately control the operation of a power converter in a multi-terminal DC power transmission system. [Solution] The control device of the embodiment has a control unit. Among the multiple power converters included in a multi-terminal DC power transmission system configured by connecting the DC sides of multiple power converters that convert AC and DC to each other, the control unit controls the power converter to be controlled so that the output voltage on the DC terminal side of the power converter to be controlled falls within a predetermined range. The control unit also sets a first characteristic region and a second characteristic region that have predetermined droop characteristics in the relationship between the DC power and the output voltage, based on the DC power and DC power command value of the power converter to be controlled, and controls the power converter so that the output voltage is output with a droop control different from that in the first characteristic region.
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Citation Information
Patent Citations
Controller of ac-DC converter
JP1997200952A
Control device, power converter control method, and program
JP7098416B2