燃氣發電機組的應用比較廣泛，不同的應用場景下發電機組運行模式也有所區別。下面就來講講燃氣發電機組的運行模式及特點，希望能您好的幫助。

Gas turbine generator sets are widely used, and their operation modes are different in different application scenarios. Now let's talk about the operation mode and characteristics of the gas generator set. I hope you can help me.

1并網運行

1 Grid connected operation

并網運行定義：分布式能源系統發電機組與公共電網在用戶端并列運行，并向公共電網輸送電能的方式。

Definition of grid connection operation: the way in which the generator units of the distributed energy system operate in parallel with the public grid at the user end and transmit electric energy to the public grid.

并網運行是為常見的運行模式，對于發電機組而言也是為簡單的運行模式。在并網運行模式下，發電機組需要通過電網狀態監測裝置，實時監測電網狀態。一旦電網發生故障，例如突然失電，監測裝置迅速給出信號，發電機組控制系統立即斷開出口斷路器，切斷與電網的聯系。在這種模式下，發電機組與電網斷開后即進入停機程序。

Grid connected operation is a common operation mode, and also a simple operation mode for generator sets. Under the grid connected operation mode, the generator unit needs to monitor the grid status in real time through the grid status monitoring device. Once the power grid fails, such as sudden power loss, the monitoring device will quickly send a signal, and the generator set control system will immediately disconnect the outlet circuit breaker and cut off the connection with the power grid. In this mode, the generator set will enter the shutdown procedure after being disconnected from the grid.

2孤島運行（孤網運行）

2 Island operation (isolated network operation)

孤島運行定義：分布式能源系統發電機組與公共大電網完全脫開獨立運行的方式。

Definition of isolated island operation: the mode of independent operation of distributed energy system generator units completely separated from the public power grid.

在孤島運行模式下，燃氣發電機組沒有電網的支撐，完全由自身提供負荷所需電能。發電機組的帶載性能決定了所能承載的負荷大小以及波動。ISO8528-5規定了G1-G4四個類別，分別對應不同的負荷種類和級別。發電機組廠商根據ISO8528-5的定義，給出了機組在相應的等級下大能承受的負荷情況。

In the island operation mode, the gas generator unit is not supported by the power grid, and the power required by the load is completely provided by itself. The load performance of generator sets determines the load that can be carried and its fluctuation. ISO8528-5 specifies four categories G1-G4, which correspond to different load categories and levels. According to the definition of ISO8528-5, the generator set manufacturer gives the load that the unit can bear under the corresponding level.

并網不上網

Grid connected but not connected

由于各種原因，許多天然氣分布式能源項目無法向電網輸出電力，或者因經濟性不佳而有意不向電網輸出電力，這種即為并網不上網模式。但是發電機組仍然與電網連接，當發電機組功率比負荷小時，剩余電能由電網補充。在并網不上網模式下，一般由發電機組充當主用電源，電網作為備用電源。

For various reasons, many natural gas distributed energy projects are unable to output power to the grid, or intentionally do not output power to the grid due to poor economy. This is the grid connected non grid mode. However, the generator set is still connected to the grid. When the power of the generator set is smaller than the load, the remaining electric energy is supplemented by the grid. In the mode of grid connection without grid connection, the generator set is generally used as the main power supply and the grid is used as the standby power supply.

并網和孤島自動切換

Grid connection and island automatic switching

有些情況下，機組需要在并網和孤島模式間進行切換。當電網正常時，機組運行在并網模式。網電故障發生時，機組自動切換到孤島模式，機組保持持續運行不停機。

In some cases, the unit needs to switch between grid connection and island mode. When the power grid is normal, the unit operates in grid connection mode. In case of grid power failure, the unit will automatically switch to island mode, and the unit will maintain continuous operation without shutdown.

這時需要注意的是，如果負荷高于發電機組的輸出功率，就需要切斷部分負荷。機組控制系統能夠根據負荷大小自動發出指令，在負荷即將超過額定功率時立即切斷部分負荷。在設，需要綜合考慮負荷的優先順序，把非關鍵負荷與關鍵負荷區別處理。

At this time, it should be noted that if the load is higher than the output power of the generator set, it is necessary to cut off part of the load. The unit control system can automatically send instructions according to the load size, and cut off part of the load immediately when the load is about to exceed the rated power. In the design, it is necessary to comprehensively consider the priority of loads and treat non critical loads and critical loads differently.

總之呢，燃氣發電機組的控制模式由用戶的需求決定，在具體的控制系統功能的實現上，廠家根據機組數量，電氣連接方式，以及運行方式等配置不同的功能模塊或者控制柜。如有必要，現有的機組也可以進行改造，增減相應的配置。更多的相關內容就來我們網站http://www.hdlelisa.com進行咨詢吧！

In a word, the control mode of the gas generator set is determined by the user's needs. In terms of the realization of specific control system functions, the manufacturer configures different functional modules or control cabinets according to the number of units, electrical connection mode, and operation mode. If necessary, the existing units can also be modified to increase or decrease the corresponding configuration. More relevant content will come to our website http://www.hdlelisa.com Consult!