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Coordinated controller for electric power equipment

A technology for coordinating controllers and power equipment, applied in AC network voltage adjustment, instruments, electrical components, etc., can solve problems such as excess equipment investment

Inactive Publication Date: 2010-05-26
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, it is rare for these distributed sources to join the power system in close proximity
In this way, assuming that all distributed (supply) power sources that are allowed to enter the grid are free to operate, as a whole, the power quality management of this assumption will inevitably lead to excessive equipment investment

Method used

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  • Coordinated controller for electric power equipment
  • Coordinated controller for electric power equipment
  • Coordinated controller for electric power equipment

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Embodiment Construction

[0032] figure 1 It shows the functional structure of the electrical equipment equipped with the coordination controller of this invention, and the coordination controller 101 is installed in the electrical equipment 102. In addition, the power equipment 102 adopts the following structure: it is connected to the power system 103, and through the network connection equipment 104, it can realize joining and leaving the system.

[0033]First, an overview of the electrical equipment configured with the coordinating controller is introduced. An electric device is arranged inside the electric device 102 . In this embodiment, the power system 103 is connected to a plurality of power consumers 106 through the grid-connected equipment 104 and the internal transformer 105 . In addition, a distributed power source (DPR) 107 is provided as a power generation device, and is connected to internal wiring and the power system 103 through a power conversion device 108 . When the distributed ...

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Abstract

A distributed power supply 103 comprises a communication means 112 to the outside of power equipment, a time keeping means 116 to get a current time, a time synchronization means 115 to synchronize with an external time, and a communication means 112 which receives a control schedule of a power consumption unit or a power generating unit. A coordination controller 101 executes the control scheduleaccording to the time acquired by the time keeping means 116. Thanks to the controller, degradation of power quality such as voltage drop of the power grit caused by operation of the distributed power supply is avoided.

Description

technical field [0001] The present invention relates to a controller for adjusting the power usage of electric equipment, and in particular to an apparatus for maintaining power quality in a power distribution network by coordinating operation schedules between adjacent demand equipment. Background technique [0002] The distributed power supply installed in the equipment of the required enterprise can usually be operated according to the requirements of each required enterprise. In many cases, it is necessary for the company to decide to use standard operation for efficiency, peak operation with reduced contract power, and reverse operation. When these distributed power sources are connected to the power system, it will have adverse effects on the power system. In order for this not to happen, certain prescribed matters need to be exchanged with each other. Different countries or different companies that operate power systems have different guidelines and principles, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00G06F15/18G06F17/60H02J3/12H02J3/18H02J3/38H02J13/00
CPCY02E40/72H02J3/38Y02E60/7807G06Q50/06Y04S10/12H02J13/0013Y04S50/10H02J3/008Y04S40/12H02J13/00006H02J13/00034Y02E60/00Y02E40/70
Inventor 佐藤康生渡边雅浩小川謙治
Owner HITACHI LTD