Upper-level power management device, power interchange control method, and power interchange control program
The upper-level power management device optimizes power transmission efficiency by measuring and adjusting converter target values in power supply systems, addressing transmission loss and power shortages in interconnected power grids.
JP7746216B2Active Publication Date: 2025-09-30TDK CORP
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Patent Information
- Application Number
- JP2022066828
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-04-14
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-04-14
AI Technical Summary
Technical Problem
Existing power interchange systems experience transmission loss when transmitting power between power transmitting and receiving units, necessitating a solution to improve transmission efficiency.
Method used
An upper-level power management device that controls power interchange among multiple power supply systems via an external DC bus, utilizing an acquisition unit to measure power values and an update unit to adjust target values for converters based on these measurements to minimize transmission loss.
Benefits of technology
The solution enhances power transmission efficiency by dynamically updating target values to reduce transmission loss, thereby improving overall power management and reducing the likelihood of power shortages across interconnected systems.
✦ Generated by Eureka AI based on patent content.
Abstract
To increase power transmission efficiency.SOLUTION: A host power management device 3 includes an acquisition unit 32, an update unit 33, and an output unit 34. The acquisition unit 32 obtains a received power value of power received by a first power supply system that makes a power transmission request, and a power transmission value of power transmitted by a second power supply system that responds to the power transmission request. The update unit 33 updates an object target value based on the received power value and the power transmission value. The object target value includes at least one of a reception power target value of an external bus voltage in a first converter that can bidirectionally convert between the external bus voltage and a first internal bus voltage supplied to a first internal DC bus in the first power supply system, and a power transmission target value of the external bus voltage in a second converter that can bidirectionally convert between the external bus voltage and a second internal bus voltage supplied to a second internal DC bus in the second power supply system. The output unit 34 outputs a first setting instruction for setting the reception power target value to the first converter, and a second setting instruction for setting the power transmission target value to the second converter.SELECTED DRAWING: Figure 4
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