Grid Spinning Reserve Losses Solar Forecasting

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Solution Overview

Problem

Power grids face inefficiencies due to maintaining conservative spinning reserve margins in non-solar power generators, which operate below peak capacity to meet peak demand, resulting in grid spinning reserve losses.

Innovation Solution

An electric power system that determines the spinning reserve margin and near-term solar generation capability, adjusting non-solar power generator output based on solar generation and spinning reserve forecast requirements to optimize power generation and reduce reserve margins.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If spinning reserve margin is maintained at conservative levels to meet peak demand, then reliability is improved, but energy efficiency deteriorates due to operating below peak capacity

Engineering Contradiction:
Improvespinning reserve marginVSAvoidgrid spinning reserve losses
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system performs preliminary actions by forecasting solar generation capability using atmospheric factors (cloud cover, aerosol content, water vapor) before peak demand occurs. This allows non-solar generators to be pre-positioned at optimal output levels, maintaining reliability while minimizing inefficiency from conservative spinning reserve margins.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring atmospheric conditions and solar generation performance, then adjusting non-solar generator output in real-time. This closed-loop control allows the system to maintain adequate spinning reserve while optimizing generator efficiency based on actual solar performance and forecasted conditions.

Inventive Principle:
Principle #23Feedback

2Reliability

If non-solar power generators operate below peak capacity to maintain spinning reserve, then reliability is improved, but productivity deteriorates due to reduced power generation efficiency

Engineering Contradiction:
Improvespinning reserve availabilityVSAvoidpower generation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system applies dynamics by making generator output adjustable and responsive to changing conditions. Instead of static conservative positioning, non-solar generators dynamically adjust their output based on real-time atmospheric forecasts and actual solar performance, optimizing the balance between reliability and productivity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operating parameters by adjusting generator output levels based on forecasted atmospheric conditions and actual solar generation. This allows the system to move away from fixed conservative spinning reserve margins toward optimized operating points that improve productivity while maintaining reliability.

Inventive Principle:
Principle #35Parameter changes

3Loss of energy

If solar generation capability is maximized by reducing atmospheric interference, then energy efficiency is improved, but adaptability deteriorates due to dependence on weather conditions

Engineering Contradiction:
Improvesolar generation efficiencyVSAvoidresponse to varying solar conditions
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary forecasting of atmospheric factors (cloud cover, aerosol content, water vapor) that affect solar generation. This advance information allows the system to prepare appropriate responses, maintaining adaptability while maximizing solar efficiency by anticipating and compensating for weather-related variations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from atmospheric monitoring and solar performance data to continuously adjust non-solar generator output. This real-time adaptation maintains system reliability while maximizing solar utilization, compensating for weather variability through coordinated generation adjustments.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9280797B2System and method to minimize grid spinning reserve losses by pre-emptively sequencing power generation equipment to offset solar generation capacity based on geospatial regional solar and cloud conditions
Publication Date: 2016.03.08 GE INFRASTRUCTURE TECH LLC
  • US9280797B2 patent drawing
  • US9280797B2 patent drawing
  • US9280797B2 patent drawing

AI summary

A system and method to preemptively adjust power generation of one or more non-solar power generators based on near term solar generation capability, spinning reserve margin, and/or power grid spinning reserve forecast requirements to offset solar power generation based on geospatial regional solar conditions.