CASE STUDY

Optimizing Power Grid Management with AMPL: A Case Study of Hitachi's GridView

30+ Companies – 100’s Customer-Side users

The integration of AMPL has been a resounding success. GridView, empowered by AMPL’s optimization capabilities, is now utilized by over 30 customer companies, serving hundreds of individual users across the power grid management sector. This widespread adoption is a testament to the effectiveness and user-friendliness of the solution.

Implementation and Result of Optimization

The resulting model employs a Mixed-Integer Linear Solver (MILP) to handle a combination of continuous and discrete variables. Despite dealing with millions of variables, including tens of thousands of integer variables, the model achieves optimal solutions within a commendable timeframe of 10 minutes.

Case Study - Optimizing Power Grid Management with AMPL: A Case Study of Hitachi's GridView

INDUSTRY

Power Grid Management

WORKFLOWS OPTIMIZED BY AMPL

Unit Commitment

Network Flow

INTEGRATIONS

AMPL with GridView Software

KEYWORDS

Power Grid Optimization

AMPL

GridView

Unit Commitment

Network Flow

JUMP TO SECTION

An Overview of Power Grid Management Industry

Power grid managers are responsible for the safe and reliable delivery of electricity from generation sources to end users. This complex system involves planning, monitoring, and controlling the flow of electricity across a vast network of power plants, transmission lines, and distribution systems. Key aspects include:

Balancing supply and demand

Ensuring enough electricity is generated to meet ever-changing consumer needs.

Maintaining Grid Stability

Preventing blackouts and power surges by keeping the grid operating within safe voltage and frequency limits.

Optimizing Resource Allocation

Deciding which power plants to activate and how to route electricity efficiently across the grid.

As renewable energy sources like solar and wind become more prominent, power grid management is facing new challenges in integrating these variable resources while maintaining grid stability.

Introducing Hitachi's GridView

In the ever-evolving world of power grid management, Hitachi stands out with its innovative GridView software. This industry-accepted solution provides comprehensive power system analysis, encompassing generation, transmission, loads, fuels, and market economics within a single framework. However, a critical aspect of GridView’s success lies in its powerful optimization engine: AMPL.

The Challenge

Power grid operators face two crucial decisions: unit commitment (determining when to activate power plants) and network flow (optimizing power transmission across the grid). These decisions significantly impact factors like:

Transmission Network Expansion

Planning future grid infrastructure upgrades based on actual power flow needs.

Plant Management

Strategically adding or retiring power plants to ensure efficient generation capacity.

Renewable Energy Integration

Effectively incorporating renewable sources like solar and wind into the grid.

The Solution

Traditionally, power grid optimization models were often developed entirely in C++. However, ABB/Hitachi recognized the limitations of this approach. They sought a solution that offered:

Modeling Ease

The ability to formulate complex and powerful optimization models that are both user-friendly and customizable for specific grid scenarios.

Embedding Flexibility

A seamless integration with their existing GridView software, built using C++.

The decision for Hitachi to use AMPL

AMPL emerged as the ideal solution for ABB/Hitachi due to its unique strengths:

Enhanced Modeling

AMPL provides a high-level modeling language, allowing ABB/Hitachi to create intricate models that are not only powerful but also understandable by both developers and customers. This transparency facilitates customization for individual customer needs.

Effortless Integration

AMPL offers a robust API (Application Programming Interface) for C++. This enabled ABB/Hitachi to effortlessly integrate AMPL's optimization capabilities within the existing GridView framework.

Python for industries represented by field with wind turbines

The implementation and results

The successful implementation of AMPL within GridView involved two key phases:

Development

An initial prototype was developed at the University of Tennessee, Knoxville, showcasing the potential of AMPL within GridView. ABB/Hitachi then built a full-fledged AMPL implementation using a dedicated team of three analysts.

Optimization

The resulting model employs a Mixed-Integer Linear Programming (MILP) solver to handle a combination of continuous and discrete variables. Despite dealing with millions of variables, including tens of thousands of integer variables, the model achieves optimal solutions within a commendable timeframe of 10 minutes.

Deployment and Impact

Empowered by AMPL’s optimization modeling capabilities, GridView has been utilized by over 30 customer companies, serving hundreds of individual users across the power grid management sector. This widespread adoption is a testament to the effectiveness and user-friendliness of the solution.

Ready to optimize your application?

Inspired by Hitachi’s success? AMPL can empower your organization to optimize complex decisions and achieve real-world results. Whether you’re in the energy sector or another industry facing intricate modeling challenges, AMPL’s user-friendly interface and powerful capabilities can streamline your processes and drive success. Book a free demo today to see AMPL in action, or start your free trial to experience the power of optimization firsthand.

Final Thoughts

The Hitachi and AMPL success story exemplifies the power of leveraging specialized optimization tools. AMPL’s modeling language and seamless integration capabilities have enabled Hitachi to deliver a best-in-class solution for power grid management. GridView, equipped with AMPL optimization, empowers grid operators to make informed decisions with a significant impact on transmission network expansion, plant management, and renewable energy integration.

COMPANY WEBSITES

INDUSTRY

Power Grid Management