EMS Control System Capability Range Acquisition
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Solution Overview
Problem
Existing control systems for energy management face challenges in accurately communicating the operational capabilities of decentralized power sources, power storage, and load devices, leading to errors when unspecified control commands are sent, and redefining message standards is unfavorable for backward compatibility.
Innovation Solution
A control system and method that include a request command with range acquisition information to ask for the operational capability range of object apparatuses, allowing the control apparatus to grasp these ranges without altering the existing message format, by including range acquisition information and object information in the request command and responding with range information and object details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control apparatus specifies a value which the object apparatuses are not capable of dealing with by control commands, then errors occur on the side of the object apparatuses, but if the control apparatus grasps the range of values in advance by defining new message standards, then backward capability deteriorates
Solution Approach 1:
The control apparatus performs preliminary action by transmitting a request command to acquire the range of values relating to ability of the object apparatus before issuing control commands. This allows the control apparatus to grasp the operational limits in advance and avoid specifying values that the object apparatus cannot handle, thereby preventing errors while maintaining compatibility with existing message formats.
2Measurement precision
If the control apparatus transmits control commands with specific values, then control precision is improved, but if the object apparatus capability range is not known, then reliability deteriorates
Solution Approach 1:
The system implements feedback by having the object apparatus respond to request commands with its capability range information. The control apparatus uses this feedback to adjust its control commands, ensuring that specified values fall within the object apparatus's operational range. This creates a closed-loop control mechanism that improves both control precision and reliability.
Data Source
AI summary
An EMS 200 comprises a communicator 210 configured to transmit a request command requesting information indicating a state of an object apparatus 300. The communicator 210 transmits, as the request command, a command including acquisition property requesting a range of values relating to ability of the object apparatus 300 and object information indicating object content of the range.