Switching Device Random Delay Prevents Power Network Overload
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing integration of regenerative power sources like wind turbines and photovoltaic systems into power supply networks leads to stability issues and the risk of blackouts due to volatile electricity generation, causing fluctuations in power supply and voltage problems, especially when multiple loads are simultaneously connected.
Innovation Solution
A connection device with a control signal input that receives a connection command from a central controller, featuring a switch-on delay device which determines a random and system-specific delay period before allowing an electrical system to connect to the power supply network, thereby preventing simultaneous and direct connections that could lead to stability and overload issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple electrical loads are simultaneously connected to the power supply network based on central controller commands, then the power supply network can utilize regenerative energy sources effectively, but stability problems, overload issues, and voltage fluctuations occur due to the volatile nature of regenerative power generation
Solution Approach 1:
The patent applies preliminary action by implementing a switch-on delay device that determines a random delay period before allowing electrical loads to connect to the power supply network. This preliminary delay action prevents simultaneous connection of multiple loads, thereby avoiding stability problems and overload issues while still enabling effective utilization of regenerative energy sources.
2Adaptability or versatility
If electrical loads are disconnected or connected based on higher-level decisions rather than load-following operation, then economic considerations are addressed, but stability, overload, or voltage problems arise due to centrally triggered simultaneous connection of several loads
Solution Approach 1:
The patent implements preliminary action by introducing a random delay period before electrical loads connect to the power supply network. This preliminary delay prevents the simultaneous connection of multiple loads that would otherwise occur based on centralized control decisions, thereby maintaining the flexibility of load operation while preventing stability and overload problems.
Solution Approach 2:
The patent applies dynamics by using a random delay period that varies for different electrical loads. This dynamic approach ensures that loads are distributed over time rather than connected simultaneously, maintaining system flexibility while preventing power supply network instability and overload conditions.
3Reliability
If the connection time of electrical systems is delayed by a random period after receiving a connection command, then simultaneous connections and associated stability, overload, or voltage problems are prevented, but the connection time becomes extended
Solution Approach 1:
The patent applies partial action by implementing a random delay period that is sufficient to prevent simultaneous connections but not excessively long to cause unacceptable delays. This balanced approach maintains power supply network stability while minimizing connection time loss.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a switching device (30) for at least one system (20, 26, 28, 44, 49) electrically connectable to a power supply network (8, 10, 12, 14, 14.1, 14.2), comprising at least one control signal input (32) for receiving a control signal from a central control unit (36, 40), wherein the control signal can be at least one switching command, wherein the switching device (30) comprises at least one switching delay device (52) configured for determining a switching delay time period, wherein the switching delay time period is a random time period, and the switching device (30) is configured to establish an electrically conductive connection between the system (20, 26, 28, 44, 49) and the power supply network (8, 10, 12, 14, 14.1, 14.2) upon receipt of the switching command. to only take effect after the specified switching delay period has elapsed.