Power System Protection Device Automatic Program Update
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Solution Overview
Problem
Existing protection and control systems for power systems require manual updates by operators, which are cumbersome, error-prone, and necessitate deactivation of the power system, leading to undesirable blackouts.
Innovation Solution
A protection and control system that includes a device connected to a communication network for automatic program updates, with a managing server determining the necessity of updates and transmitting them to the device, allowing for remote, automated program updates without system deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual update by operator is executed, then program update is achieved, but operation is stopped and power system must be deactivated
Solution Approach 1:
The system performs preliminary actions by automatically downloading update programs from a server and storing them in the storage unit before the actual update execution. This preliminary preparation allows the update to be executed without manual operator intervention and without deactivating the power system, as the update package is ready in advance.
Solution Approach 2:
The protection and control device performs self-service by automatically checking for updates, downloading update programs, and executing updates without requiring manual operator intervention. The device monitors its own program version, communicates with the server to obtain updates, and manages the update process autonomously, eliminating the need to stop operations for manual updates.
2Reliability
If manual update work is performed by operator, then program update is achieved, but work time is consumed and errors may occur
Solution Approach 1:
The protection and control device automatically performs update checks, downloads update programs from the server, and executes updates without manual operator intervention. This self-service mechanism eliminates human errors in the update process and reduces the time required for update operations, as the device handles the entire update workflow autonomously.
Solution Approach 2:
The system implements feedback mechanisms where the protection and control device automatically reports its program version status to the server, receives update notifications, and confirms update execution. This automated feedback loop ensures accurate tracking of update status across multiple devices and eliminates the time-consuming manual verification process.
3Reliability
If program update is executed manually at site, then update is achieved, but operator intervention is required and update status monitoring is difficult
Solution Approach 1:
The server system serves multiple functions: it stores update programs, communicates with multiple protection and control devices, manages update distributions, and monitors update statuses across the entire power system. This universal platform simplifies update management by centralizing all update-related operations, eliminating the need for separate manual processes at each site.
Solution Approach 2:
The system establishes bidirectional communication between the server and protection and control devices. Devices automatically report their version status to the server, receive update notifications, and confirm execution status. This automated feedback mechanism provides real-time visibility of update status across all devices, eliminating the complexity of manual tracking and ensuring certain update execution.
Data Source
AI summary
A protection and control system which is capable of surely updating a program without a program update by an operator and without deactivating a power system is provided. A protection and control device 1 includes an update accepting unit 1c that determines whether or not to accept the update of the program from a managing server 3, and an updating processing unit 1d that receives an updating program and that updates the program. The managing server 3 includes an update determining unit 3c that determines whether or not a supplied update program is for updating the program of the predetermined protection and control device 1, a transmitting unit 3b that transmits an update notification to the protection and control device 1 on which the program to be updated is loaded, and a receiving unit 3a that receives a reply to the update notification from the protection and control device.