Power Management Server for Flexible Grid Frequency Adjustment
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Solution Overview
Problem
Existing power management systems for virtual power plants have limited flexibility in supply and demand adjustments due to fixed fluctuation cycles, which can hinder effective frequency adjustments in power grids.
Innovation Solution
A power management server that receives adjustment requests from an upper management server, manages correspondence relationships between fluctuation cycles and adjustment power supplies, and determines appropriate power supplies to transmit adjustment instructions based on these relationships, allowing for more flexible and precise frequency adjustments in power grids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If adjustment power supplies are divided into categories with fixed fluctuation cycles, then the system structure becomes simpler and easier to manage, but the degree of freedom of supply and demand adjustment is reduced
Solution Approach 1:
The patent applies dynamics by transitioning from fixed fluctuation cycles to flexible fluctuation cycles. The management server dynamically determines fluctuation cycles based on power supply/demand conditions, allowing the system to adapt to changing grid conditions. This enables the system to maintain simplicity while gaining flexibility in supply and demand adjustments.
2Ease of operation
If fixed fluctuation cycles are used for each category of adjustment power supply, then control instructions are easier to transmit, but the frequency adjustment capability is insufficient
Solution Approach 1:
The patent changes the parameter of fluctuation cycle from fixed to flexible. The management server determines appropriate fluctuation cycles based on current power supply/demand conditions, allowing the system to maintain ease of operation while improving frequency adjustment capability. The server transmits control instructions with dynamically adjusted timing parameters to achieve better grid frequency control.
3Stability of the object's composition
If adjustment instructions are transmitted according to fixed fluctuation cycles, then the control system is more stable, but the response to power grid frequency fluctuations is delayed
Solution Approach 1:
The patent implements dynamic fluctuation cycles that adapt to grid conditions. When frequency deviations occur, the management server adjusts the fluctuation cycle to enable faster response. This maintains control system stability through structured management while improving response speed when needed, resolving the contradiction between stability and responsiveness.
Data Source
AI summary
A power management server includes a receiver for receiving, from an upper management server, an adjustment request for requesting a fluctuation adjustment of a frequency of a power grid for each fluctuation cycle of an adjustment target, a transmitter for transmitting, to an adjustment power supply, an adjustment instruction for instructing the fluctuation adjustment of the frequency of the power grid according to the fluctuation cycle of the adjustment target requested by the adjustment request, a management unit for managing a correspondence relationship between the fluctuation cycle of the adjustment target instructed by the adjustment instruction and the adjustment power supply, and a controller for determining an adjustment power supply to which the adjustment instruction is to be transmitted based on the correspondence relationship.