沼氣發電機組循環啟-停、無法持續供電的故障分析涉及多個可能的原因和解決方法。以下是詳細的分析：

The fault analysis of the cycle start stop and inability to sustain power supply of biogas generators involves multiple possible causes and solutions. The following is a detailed analysis:

沼氣發電機組控制系統故障：

Control system failure of biogas generator set:

在新建雷達站的電源切換試驗中，技術人員對沼氣發電機組進行了空載測試和模擬測試。通過這些測試，基本排除了沼氣發電機組本身存在的故障。

In the power switching test of the newly built radar station, technicians conducted no-load and simulation tests on the biogas generator set. Through these tests, the inherent faults of the biogas generator unit have been basically eliminated.

然而，進一步分析發現，沼氣發電機組從401# 開關選取啟動信號是導致故障的直接原因。當市電電源或沼氣發電機組電源存在時，401# 開關均閉合，導致沼氣發電機組控制器經邏輯運算后認為啟動信號中斷，從而停止工作。隨后，由于市電電源和沼氣發電機組電源均不存在，401# 開關自動斷合，再次發送啟動信號，導致沼氣發電機組控制器自動啟動工作，形成循環啟-停。

However, further analysis revealed that selecting the start signal from switch 401 # in the biogas generator set was the direct cause of the malfunction. When the mains power supply or biogas generator set power supply is present, the 401 # switch is closed, causing the biogas generator set controller to consider the start signal interrupted after logical operation and stop working. Subsequently, due to the absence of both the mains power supply and the biogas generator set power supply, the 401 # switch automatically closed and sent a start signal again, causing the biogas generator set controller to automatically start working, forming a cycle of start stop.

沼氣發電機組啟動信號取點問題：

Problem with selecting the starting signal for biogas generator set:

沼氣發電機組的啟動信號來源存在問題。當401# 開關位于ATS下端時，其輔助觸點與沼氣發電機組控制器的邏輯運算不匹配，導致沼氣發電機組無法穩定運行。

There is a problem with the starting signal source of the biogas generator set. When switch 401 is located at the lower end of ATS, its auxiliary contacts do not match the logic operation of the biogas generator controller, resulting in the inability of the biogas generator to operate stably.

這種情況下，需要重新設計啟動信號的取點方式，以確保在市電恢復或沼氣發電機組電源失效時，能夠正確地控制沼氣發電機組的啟停。

In this case, it is necessary to redesign the method of selecting the starting signal to ensure that the start and stop of the biogas generator set can be correctly controlled when the mains power is restored or the power supply of the biogas generator set fails.

其他常見故障及解決方法：

Other common faults and solutions:

沼氣發電機組在運行過程中可能遇到的問題還包括啟動困難、怠速不穩、動力下降、耗氣量高和熱車不易啟動等。這些問題通常可以通過檢查混合器、沼氣供給系統、點火系統、ECU電源、火花塞電極間隙、空氣濾清器等部件來解決。

The problems that biogas generator sets may encounter during operation include difficulty starting, unstable idle speed, decreased power, high gas consumption, and difficulty starting hot vehicles. These issues can usually be resolved by inspecting components such as the mixer, biogas supply system, ignition system, ECU power supply, spark plug electrode gap, air filter, etc.

此外，沼氣發電機組的功率異常也可能由供氣回路、測控回路及其他元件的故障引起。需要從供氣回路、機械控制回路、電氣測量回路和電氣控制回路等方面進行分析和檢查。

In addition, abnormal power of biogas generators may also be caused by faults in the gas supply circuit, measurement and control circuit, and other components. Analysis and inspection are required from the aspects of gas supply circuit, mechanical control circuit, electrical measurement circuit, and electrical control circuit.

沼氣發電機組循環啟-停、無法持續供電的故障主要與控制系統和啟動信號取點有關。通過改進啟動信號的邏輯處理和優化控制系統的設計，可以有效解決這一問題。同時，定期檢查和維護設備也是確保沼氣發電機組穩定運行的重要措施。

The faults of cycle start stop and inability to sustain power supply in biogas generator sets are mainly related to the control system and the starting signal points. By improving the logic processing of the startup signal and optimizing the design of the control system, this problem can be effectively solved. At the same time, regular inspection and maintenance of equipment are also important measures to ensure the stable operation of biogas generators.

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