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Power Device Controllers and Distribution Systems

A technology of power distribution system and power equipment, which is applied in the field of Volt-VAR optimization of power distribution system, and can solve the problems of unknown information, voltage rise, and advanced metering system provision, etc.

Active Publication Date: 2022-01-18
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These DER systems inject power into the distribution system which can cause adverse changes such as voltage rises on the feeder lines of the distribution system
Existing control proposals have many deficiencies, shortcomings and disadvantages
In some instances, a traditional controller for an electrical distribution system with a DER system may require information about the layout of the electrical distribution system that is unknown and cannot be provided by an advanced metering system

Method used

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  • Power Device Controllers and Distribution Systems
  • Power Device Controllers and Distribution Systems
  • Power Device Controllers and Distribution Systems

Examples

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Embodiment Construction

[0008] refer to figure 1 , an exemplary power distribution system 100 is shown. The illustrated system 100 includes a distribution substation 101 configured to receive power from a power source (not shown), transform the power by raising or lowering the voltage, and distribute the power to the rest of the system 100 . System 100 further includes feeder power lines 103 and 109 electrically coupled to distribution substation 101 .

[0009] System 100 further includes electromechanical device 105 coupled to line 103 . In the illustrated embodiment, device 105 is a voltage regulator having a tap position control setting and is configured to maintain a constant voltage level based on the tap position control setting. It should be understood that any or all of the aforementioned features of the voltage regulator 105 may be present in other electromechanical devices disclosed herein. Connection point 107 is coupled to line 103 and is configured to selectively couple a transverse p...

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Abstract

The present application generally relates to Volt-VAR optimization for electrical distribution systems with Advanced Metering Infrastructure (AMI). Distributed energy resources (DERs) such as photovoltaic arrays are becoming common in power distribution systems. These DER systems inject power into the distribution system, which can cause adverse changes, such as voltage rises on feeder lines of the distribution system. Existing control proposals suffer from many deficiencies, shortcomings and disadvantages. In some instances, traditional controllers for electrical distribution systems with DER systems may require information about the layout of the electrical distribution system that is unknown and cannot be provided by advanced metering systems. There remains a significant need for the devices, methods, systems and techniques disclosed herein.

Description

Background technique [0001] The present application generally relates to Volt-VAR optimization for power distribution systems with Advanced Metering Infrastructure (AMI). Distributed energy resources (DERs) such as photovoltaic arrays are becoming common in power distribution systems. These DER systems inject power into the distribution system, which can cause adverse changes, such as voltage rises on feeder lines of the distribution system. Existing control proposals suffer from many deficiencies, shortcomings and disadvantages. In some instances, traditional controllers for distribution systems with DER systems may require information about the layout of the distribution system that is unknown and cannot be provided by advanced metering systems. There remains a significant need for the devices, methods, systems and techniques disclosed herein. Contents of the invention [0002] Apparatus, methods and systems featuring Volt-VAR optimization for power distribution systems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/10H02J3/16H02J3/18H02J3/38
CPCH02J3/16Y04S10/12Y04S10/30H02J3/381H02J2203/20H02J13/00002H02J13/00034Y02E40/30Y02E40/70Y02E60/00Y04S10/00Y04S10/50Y04S10/22Y04S40/20H02J3/00G05B19/042G05B2219/2639H04Q9/02H04Q2209/60H04Q2213/13544
Inventor 冯晓鸣康宁
Owner HITACHI ENERGY SWITZERLAND AG
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