Cascade Reservoir Routing for Fragmented River Flood Forecasting
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Solution Overview
Problem
Existing methods for reservoir operation in fragmented river systems fail to achieve continuous routing of inflow floods due to disrupted continuity, necessitating a new approach for cascade reservoir groups.
Innovation Solution
A method and system for continuous routing forecasting and operation of cascade reservoir groups, involving decomposition of the physical structure, quantification of river-reservoir system characteristics, establishment of upstream-downstream flood routing equations, and dynamic coupled feedback computation to achieve automatic routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reservoir operation is implemented in fragmented river systems, then flood control and power generation functions are improved, but continuous routing of inflow floods is disrupted
Solution Approach 1:
The patent segments the cascade reservoir group into multiple basic units (river channel-reservoir-river channel), where each unit is independently modeled and processed. This segmentation allows the system to handle the complexity of fragmented routing while maintaining overall continuity through standardized interface definitions between units.
Solution Approach 2:
The patent introduces a routing forecasting module as an intermediary that computes flood propagation between reservoir units. This intermediary component bridges the gaps created by reservoir operations, enabling continuous routing computation across the fragmented system by calculating flow transformations between upstream and downstream units.
2Ease of operation
If single-reservoir operation rules are used, then operational simplicity is maintained, but joint reservoir operation and continuous routing requirements cannot be satisfied
Solution Approach 1:
The patent creates a universal computing framework that can handle multiple reservoir operation scenarios (flood control, power generation, ecological flow) through a unified routing forecasting module. This module serves multiple functions by adapting to different operation objectives while maintaining a consistent computational structure across all reservoir units.
Solution Approach 2:
The patent implements dynamic operation rules that can adapt to different flood conditions, reservoir states, and operational objectives. The routing forecasting module dynamically adjusts computation parameters and operation strategies based on real-time system state, enabling the system to transition between different operational modes while maintaining continuity.
3Reliability
If cascade reservoir group operation is implemented, then comprehensive flood control and power generation are achieved, but computation complexity increases significantly
Solution Approach 1:
The patent divides the complex cascade reservoir system into N independent basic units, each with standardized characteristics. This segmentation reduces overall computational complexity by allowing parallel processing of individual units while maintaining system-wide coherence through defined interface relationships between units.
Solution Approach 2:
The patent uses standardized templates and repeated computational patterns for each river channel-reservoir-river channel unit. By copying the same routing forecasting methodology across all units with standardized parameters, the system manages complexity through pattern recognition and reuse rather than unique customizations for each unit.
Data Source
AI summary
A method for continuous routing forecasting and operation of a reservoir group under influence of river fragmentation includes: decomposing and quantitatively characterizing a physical structure of a cascade reservoir group system based on an upstream-downstream hydraulic connection and a river channel composition feature, thereby decomposing a fragmented long river system into a river-reservoir system including water channel-reservoir-water channel basic units; generalizing an upstream-downstream relationship of each constituent unit in the system, quantifying a wave characteristic, and establishing upstream and downstream flood routing process equations; and extracting and quantifying an operation rule based on a historical reservoir operation scheme of the constituent unit, enabling a dynamic coupled feedback computation between an operation process and flood routing under different operation modes, and connecting the constituent units sequentially to complete continuous routing of the fragmented long river system.