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Multivariable modulator controller for power generation facility

A facility and inverter technology, applied in the field of power generation facilities, can solve problems such as cost effectiveness

Active Publication Date: 2016-07-20
拉吉夫·库马尔·瓦尔马
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These may not be cost effective for the goals to be achieved

Method used

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  • Multivariable modulator controller for power generation facility
  • Multivariable modulator controller for power generation facility
  • Multivariable modulator controller for power generation facility

Examples

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Embodiment Construction

[0037] The present invention includes a multivariable modulator that operates to control a power generation facility to assist in maintaining or improving the stability of a power transmission system. Multivariable modulators allow power generation facilities to:

[0038] i) Increase system stability, including transient stability, small signal stability, voltage stability and voltage regulation

[0039] ii) adjust the system frequency, and

[0040] iii) Improving power transfer capability in both transmission lines and distribution lines.

[0041] figure 1 A two-zone power system connected by transmission lines is shown. Each zone has both generators and loads. Zone 1 consists of an equivalent generator G 1 and V 1 2 and terminal voltage V 2 pcc L .

[0042] In an advantageous manner to increase system stability, the multivariable modulator operates by modulating real power and / or reactive power from the generating facility.

[0043] Power systems may become unstable...

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Abstract

Systems, methods, and devices relating to operating a power generation facility to contribute to the stability of the power transmission system. A controller operates on the power generation facility to modulate real power or reactive power or both in a decoupled manner to contribute to the stability of the power transmission system. Real power produced by the power generation facility can be increased or decreased between zero and the maximum real power available from the PV solar panels, as required by the power system. Reactive power from the power generation facility can be exchanged (injected or absorbed) and both increased or decreased as required by the power transmission system. For solar farms, the solar panels can be connected or disconnected, or operated at non- optimal power production to add or subtract real or reactive power to the power transmission system.

Description

technical field [0001] The present invention relates to power generation facilities. More specifically, the present invention provides methods and systems for operating a power generation facility, such as a photovoltaic (PV) solar power plant. Background technique [0002] Power systems around the world need to ensure voltage regulation, stability, allow high levels of power transmission capacity in the lines to deliver power from existing or new generation sources despite various system disturbances, and regulate system frequency. These disturbances can be slow and gradual changes in load and generation, or large and sudden changes, such as faults, line switching, equipment outages, etc. [0003] There are two main types of stability: [0004] Angle Stability: This involves maintaining the synchronization of the generators. It has two main parts: [0005] a) Small signal stability - caused by small perturbations and insufficient damping in the power system with respect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J13/00H02J3/16H02J3/24H02S40/30
CPCH02J3/1821H02J3/1864H02J3/32H02J3/48H02J3/50H02J7/35Y02E40/30H02J2300/26H02J3/381Y02E10/56Y02E10/30H02J3/241H02J3/466H02J4/00
Inventor 拉吉夫·库马尔·瓦尔马
Owner 拉吉夫·库马尔·瓦尔马
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