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Multivariable Controller Modulators for Power Generation Facilities

一种设施、逆变器的技术，应用在发电设施领域，能够解决成本有效等问题

Active Publication Date: 2019-04-26
拉吉夫·库马尔·瓦尔马
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Multivariable Controller Modulators for Power Generation Facilities
  • Multivariable Controller Modulators for Power Generation Facilities
  • Multivariable Controller Modulators for Power Generation Facilities

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

The present application provides systems, methods, and apparatus related to operating power generation facilities to aid in the stability of power transmission systems. The controller operates the generation facility to modulate real power or reactive power or both real or reactive power in a decoupled manner to contribute to the stability of the power transmission system. Depending on the needs of the power system, the actual power produced by the generating facility can be increased or decreased between zero and the maximum actual power available from the PV solar panels. It is possible to exchange (inject or absorb) the reactive power from the generating facility and increase or decrease the reactive power from the generating facility according to the needs of the power transmission system. For solar power plants, solar panels may be connected or disconnected, or operated with non-optimal power production to add or subtract real or reactive power to or from the electrical 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 Patents(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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