On-site ESS Management Device Grouping Grid Units

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing on-site energy storage systems (ESS) lack the ability to freely group and manage multiple batteries and power converters across different sites, leading to limitations in power input and output management and requiring complex programming tasks for adding or removing grid units.

Innovation Solution

An on-site ESS management device that includes an editing unit for grouping grid units, a selection unit for managing specific groups, and a management unit for power input and output control, allowing for flexible grouping and management of multiple grid units without the need for extensive programming, with a power supply unit providing charging power to loads until external power is available.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional power management system manages grid units at limited sites, then the system structure is simple, but the adaptability to manage grid units across various sites is poor

Engineering Contradiction:

Improveadaptability to manage grid units across various sitesVSAvoidsystem structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system divides grid units into multiple selectable groups, allowing the management device to handle different combinations of grid units across various sites. This segmentation enables flexible grouping without requiring a completely new system structure for each site configuration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The management device is designed to universally manage multiple grid units across different sites by implementing group selection functionality. A single device can adapt to various site configurations by selecting different groups, eliminating the need for site-specific system designs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If grid units are added or removed in a traditional PMS, then the management target changes, but complex programming tasks are required

Engineering Contradiction:

Improveflexibility to add or remove grid unitsVSAvoidprogramming task complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The system dynamically adjusts management targets through group selection rather than requiring programming changes. When grid units are added or removed, users simply select different groups, and the management device adapts its operation without needing programming modifications.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses pre-defined groups as templates for management targets. Instead of programming custom management configurations, users select from existing group configurations, which can be copied and reused across different scenarios, eliminating complex programming tasks.

Inventive Principle:

Principle #26Copying

3Productivity

If an off-site PMS manages grid units within a limited range, then the device complexity is low, but the productivity for managing multiple sites is insufficient

Engineering Contradiction:

Improveproductivity for managing multiple sitesVSAvoiddevice complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The management device combines the management capabilities for multiple sites into a single unified system. By merging group selection and management functions, the device can handle multiple sites simultaneously, significantly improving productivity without proportionally increasing device complexity.

Inventive Principle:

Principle #5Merging (Combining)

4Ease of operation

If a management unit manages a specific group, then the ease of operation is improved, but the ability to manage remaining groups is lost

Engineering Contradiction:

Improveease of managing a specific groupVSAvoidability to manage remaining groups

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The management device operates in periodic cycles, managing one selected group at a time while allowing users to switch between different groups. This periodic action between group selection and management provides ease of operation for the current group while maintaining the ability to manage other groups through subsequent selections.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS10978875B2On-site ESS management device

Publication Date: 2021.04.13 GRIDWIZ

AI summary

An on-site ESS management device includes an editing part for selectively grouping a plurality of grid parts when a plurality of grid parts including at least one of a battery and a power converter connected to the battery are provided, a selection part for selecting a specific group, and a management part for managing the power input and output of each grid part included in the specific group.