水力発電機用光ファイバー温度測定・監視システムの利点

Why do hydroelectric generators need temperature measurement

In hydroelectric power plants or other nuclear power plant equipment, a generator is required. The generator applies direct current to the rotor according to the law of electromagnetic induction, drives the rotor to rotate through the mechanical part, generates electromotive force, and converts mechanical energy into electrical energy. During the operation of the generator, 大量の熱が発生します. In order to ensure the safe and reliable operation of the generator, water cooling is used for the stator bars of large generators, and hydrogen cooling is used for the stator core and rotor. したがって, temperature components such as the generator core, upper and lower coils, and outlet water temperature need to be introduced to the monitoring system to monitor the temperature changes in various parts of the generator during operation.

With the increasing capacity of hydroelectric generator units, their importance in the power system is becoming more and more prominent. ユニットの動作温度は、水力発電機の動作を示す重要な指標です。, especially the temperature of the stator and rotor parts can better reflect the operating situation of the unit. How to monitor the operating temperature of key components in a long-term and accurate manner has always been a concern for hydropower plants. 現在のところ, most hydroelectric power plants use platinum resistors for stator temperature measurement, but platinum resistors have weak anti-interference ability in temperature measurement. After a long operation time of the unit, the temperature measurement is inaccurate and cannot be replaced during operation or maintenance (only during the stator renovation period), becoming a permanent problem that hydroelectric power plants cannot eliminate. In order to solve its stability and durability, a certain power plant compared various temperature measurement methods and ultimately selected fluorescent fiber optic temperature measurement, which was successfully applied to the stator of a hydroelectric generator.

The generator fiber optic temperature measurement monitoring system can be connected to the generator monitoring unit software analysis system. 発電機状態維持システムは、さまざまな機器に対して統一されたデータアクセスモデルと分析診断モデルを提供する必要があります。, データの呼び出しと処理を含む, 監視と早期警告, ステータス評価, 予測評価, risk assessment, 故障診断とメンテナンス戦略, 等. 同時に, 設置の責任はそれです, 調整, 較正, 状態監視システムのテストとテスト.

の 光ファイバー温度監視システム 発電機のステーターとローターに埋め込まれた温度測定素子を通じてユニットの温度を収集します – センサー. テストコンポーネントには固定子巻線が含まれます, iron core, コレクターリング, 上下の圧力フィンガー, 励磁巻線, スライドリング, damping bar, 等. データは事前​​に分析され、機器の包括的なオンサイト監視が形成されます。. 信号調整器は、発電所のコンピュータ監視システムとデータを通信する機能を備えています。, meeting the software and hardware requirements of the communication interface for the power plant computer monitoring system.

光ファイバー温度センサー, インテリジェント監視システム, 中国の分散型光ファイバーメーカー