Optimized load prediction for security constrained unit commitment dispatch using linear programming for electricity markets

• US 20040181460A1
• Filed: 04/08/2003
• Published: 09/16/2004
• Est. Priority Date: 03/10/2003
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens Power Transmission & Distribution Incorporated (Siemens AG)
• Inventors: Ristanovic, Petar, Bjelogrlic, Milan
• Granted Patent: US 7,356,536 B2
• Time in Patent Office: Days
• US Class Current: 705/26
• CPC Class Codes: G06Q 30/08 Auctions
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 3/003 Load forecast, e.g. methods or systems for forecasting future load demand
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

The present invention is a method for optimizing security constrained unit commitment in the day ahead wholesale electricity market using mixed integer linear programming techniques. The wholesale electricity market uniquely requires the submission of offers to supply energy and ancillary services at stated prices, as well as bids to purchase energy, and known operating and security constraints. The present invention address the above noted needs by providing a SCUC engine to support and implement the requirements via a computer system implementation.

Claims

1. A computer implemented system for optimal market dispatch for clearance and pricing of energy and ancillary services in an electricity market of at least one market participant wherein load prediction is performed considering load system requirements, said system comprising:

means for inputting transmission security constraints of said at least one market participant;

means for clearing energy and ancillary bids;

means for optimizing the dispatch of energy and ancillary services considering said load security constraints of said at least one market participant using mixed integer linear programming techniques; and

means for pricing the dispatch of energy considering said load security constraints.

2. The market dispatch system of claim 1, wherein said load security constraint is the market participant energy limit.

3. The market dispatch system of claim 1, wherein said load security constraint is the load energy limit.

4. The market dispatch system of claim 1, wherein said load security constraint is the market participant regulation availability.

5. The market dispatch system of claim 1, wherein said load security constraint is the market participant regulation range.

6. The market dispatch system of claim 1, wherein said load security constraint is the market participant spinning reserve limit.

7. The market dispatch system of claim 1, wherein said load security constraint is the load spinning reserve limit.

8. The market dispatch system of claim 1, wherein said load security constraint is the market participant non-spinning reserve limit.

9. The market dispatch system of claim 1, wherein said load security constraint is the market participant capacity limit.

10. The market dispatch system of claim 1, wherein said load security constraint is the load capacity limit.