The intelligent control equipment of XES-01G hydro-generator set has stable performance and powerful functions. 6300V ，单机容量不大于 5000KW 水轮发电机组，每台水轮发电机组只需配一台本装置，结合励磁及发电机保护，自动控制，同期即可组成一体化柜。 It is suitable for hydro-generators with a rated voltage of 6300V and a stand-alone capacity of not more than 5000 KW . Each hydro-generator only needs one unit of this unit, combined with excitation and generator protection, automatic control, and can form an integrated cabinet in the same period. It can safely and conveniently implement a modern or unattended modern power generation management mode for high-pressure hydroelectric generating units.
The controller detects the output voltage, frequency and phase of the generator set, and automatically adjusts the speed of the generator set to make the frequency equal to the power grid. 1/8 ，导前时间小于 0.3 秒（可设定），控制器发出合闸信号。 When the grid connection error is less than the set value, the voltage difference is less than 1/8 of the grid voltage, and the lead time is less than 0.3 seconds (settable), the controller sends a closing signal. During operation, the controller detects the output power factor of the generator set, and automatically adjusts the power factor of the unit to ensure that the unit automatically maintains a certain power factor during operation. Follow grid voltage before grid connection and stabilize power factor after grid connection. When the power grid or hydro-generator unit encounters abnormal conditions (such as high and low voltage, high or low cycle), the controller will give an audible and visual alarm, and will automatically shut down as needed to disconnect the hydro-generator unit from the grid. The controller has an automatic water level management function, which will automatically and reasonably increase or decrease the turbine opening according to the water in the front pond. The controller provides display voltage, frequency, current and power factor during operation. 65V ～ 265VAC ），电源效率高等优点，控制器供电电压为 220VAC ，取自电网电压，外接备份电源；也可用直流 220V 供电。 The controller has a special design for the power supply section, which has the advantages of wide power supply voltage ( 65V ~ 265VAC ), high power efficiency, etc. The controller's power supply voltage is 220VAC , which is taken from the grid voltage and external backup power supply; it can also be powered by DC 220V . The controller adopts mechanical relay output, which can control AC and DC signals, and is optically isolated from the internal control circuit for more stability.
Second, the main features
1. This device integrates excitation, automatic control and generator protection functions, which can realize automatic startup, automatic excitation, automatic frequency and voltage regulation, automatic quasi-synchronous grid connection, automatic adjustment of active and reactive power, and according to the actual water level of the front pond Adjust the load. Can achieve normal shutdown and abnormal shutdown, can also achieve the protection of voltage, current, frequency and so on. As long as the power is on normally, the device immediately puts the system into a protection and monitoring state to reliably protect the normal operation of the hydro-generator set.
2. The generator's dual protection function (the protection provided by the integrated controller and the configured microcomputer protection of the generator), protects the generator well.
3. Suitable for various types of governors.
4 High software integration, extremely low equipment failure rate, greatly improving equipment reliability.
1. Working environment
-5 ℃～ +45 ℃ Ambient temperature: -5 ℃ ～ +45 ℃
5 ％～ 95 ％ Relative humidity: 5 % to 95 %
86 ～ 106 Kpa Atmospheric pressure: 86 ～ 106 Kpa
2.Extreme ambient temperature for storage and transportation
运输及安装允许的温度为 -5 ℃～ +45 ℃，在不施加任何激励量的条件下，不出现不可逆变化。 The storage, transportation, and installation temperature of the device is -5 ℃ ~ +45 ℃, without any irreversible changes, without any excitation.
Fourth, technical parameters
220V ± 30 ％ 1. Working power supply of this device: 220V ± 30 %
0 ～ 5A 2. Secondary input range of protection current: 0 ～ 5A
1 ～ 130V 3. Voltage detection range: 1 ～ 130V
1 ％ 4. Current measurement accuracy: ± 1 %
1 ％ 5. Voltage measurement accuracy: ± 1 %
Us ± 10V(Us 系统电压 ) 6. Synchronous voltage range of generator: Us ± 10V (Us system voltage )
49.5 ～ 50.5HZ 7. Synchronous frequency range: 49.5 to 50.5HZ
<15 ° 8. Synchronous phase angle: <15 °
1 ～ 5A 9. Current overcurrent setting range: 1 to 5A
1 ～ 99HZ 10. Frequency measurement range: 1 ～ 99HZ
0.3V 11. Frequency detection residual voltage input domain value: 0.3V
0.1 ％ HZ 12. Frequency measurement accuracy: ± 0.1 % HZ
16 个 13. Number of input switching points: 16
16 个 14. Number of output switching points: 16
220V(AC) 、 5A ； 24V(DC) 、 5A 15 , combined output switching capacity: 220V (AC) , 5A ; 24V (DC) , 5A
RS485 16. Communication interface: RS485
9600 17. Baud rate: 9600
DZ478-92 有关规定 18. Insulation compressive strength: in accordance with relevant regulations of DZ478-92
IEC61000. 有关规定 19. Anti-interference performance: in line with IEC61000.
270 × 132 × 200( 宽×高×深 ) 20 , controller dimensions: 270 × 132 × 200 ( width × height × depth )
10W 21. Power consumption: ≤ 10W
< 5KG 22. Controller weight: <5KG
V. Main functions
This device has automatic start-up, automatic frequency adjustment function, automatic excitation function, automatic quasi-synchronization function, automatic active power adjustment function, automatic reactive power adjustment function, automatic shutdown, communication function, water level operation function, speed flying protection function, Current protection function, under voltage protection function, over voltage protection function, low cycle protection function, over frequency protection function, phase loss protection function, phase sequence monitoring function, over (under) excitation protection, loss of field protection function, rotor one-point ground protection Wait
The following is the function of this device, we explain separately:
1. Automatic start-up function: When the current pool water level reaches the set high water level in the automatic operation state, it automatically starts up.
2. Automatic frequency adjustment function: After starting, the turbine generator set's automatic control system automatically opens the turbine guide vanes, and automatically adjusts the turbine speed to a certain speed.
3. Automatic start-up function: When the speed of the turbine reaches a certain speed, the device will send a start-up signal to start the excitation to make the generator build pressure.
4. Automatic quasi-synchronization function: The automatic control system of the hydro-generator set automatically adjusts the voltage, frequency, and phase difference of the unit after the generator is pressurized to make it basically consistent with the voltage, frequency, and phase difference of the large network. The brake signal enables the electricity from the generator to be transmitted to the large network.
5. Automatic active power adjustment function: The active power adjustment is based on the power value set by the user. The device automatically adjusts the turbine vane to stabilize the power at the set value.
6. Automatic reactive power adjustment function: The reactive power adjustment is based on the power factor value set by the user, and the device automatically adjusts the excitation to make the power factor a constant value.
55HZ 时，装置将迅速将水轮机组关至下限位置，或先启动折向器阻滞水轮机的转速。 7. Speed flyaway protection function: After the turbine unit is turned on, if the sudden increase of the rotation speed exceeds 55HZ , the device will quickly shut down the turbine unit to the lower limit position, or start the deflector to block the turbine speed.
8. Overcurrent protection function: When the generator set current exceeds the generator overload current, the device will start protection, separate the circuit breaker, and quickly shut down the hydro-generator set to the lower limit position for shutdown processing.
9. Under-voltage protection function: When the voltage of the generator or large network is lower than the set value, the device will start protection, separate the circuit breaker, and quickly shut down the hydro-generator set to the lower limit position for shutdown processing.
, 分开断路器，并且迅速将水轮发电机组关至下限位置，作停机处理。 10. Over-voltage protection function: When the voltage of the generator or large grid is higher than the set value, the device will start protection , separate the circuit breaker, and quickly shut down the hydro-generator set to the lower limit position for shutdown processing.
11. Low cycle protection function: When the frequency of the generator or large grid is less than the set value, the device will start protection, separate the circuit breaker, and quickly shut down the turbine unit to the lower limit position for shutdown processing.
12. Over-frequency protection function: When the frequency of the generator or the grid is greater than the set value, the device will start protection, separate the circuit breaker, and quickly shut down the hydro-generator set to the lower limit position for shutdown processing.
13. Loss of magnetic protection function: When the generator loses excitation, the device will start protection, separate the circuit breaker, and quickly shut down the hydro-generator set to the lower limit position for shutdown processing.
14. Large network power failure protection function: When a large network power failure occurs, the device will start protection, separate the circuit breaker, and quickly shut down the hydro-generator set to the lower limit position for shutdown processing.
15. Automatic shutdown function: When the water level reaches the set low water level or uneconomical water level in the automatic running state, the device reduces the generator load to a minimum, adjusts the power factor, and then issues a trip signal, and shuts the turbine unit to Lower limit position.
RS-485 通讯接口。 16. Communication function: This device has RS-485 communication interface.
17. Hydrological operation function: This device adjusts the output of the hydro-generator unit according to the actual water level in the front pond, so that it always maintains a high water level to generate power. It will automatically select different units to start and stop based on the amount of incoming water to achieve multiple units. Scheduling function.
18 . Three-phase voltage, current, power, power factor measurement, display, protection, phase sequence detection, phase loss protection
19 . Microcomputer excitation device:
V/F 限制，强励 1 ) Perfect excitation protection function: over-excitation, under-excitation, over-voltage, V / F limit, strong excitation
2 ) A variety of operation modes, constant voltage, constant current, constant power factor, constant angle operation, and free switching.
Function of computer monitoring system
“无人值班、少人值守”的设计要求。 The computer monitoring system of the hydropower station can meet the design requirements of "unattended, less attended" power stations .
The basic functions are as follows:
The computer monitoring system can quickly, accurately and effectively complete the safety monitoring and control of the controlled objects of the power station. The power station control layer can realize data collection and processing, real-time control and adjustment, safe operation monitoring, screen display, accident handling guidance and recovery operation guidance, data communication, keyboard operation, file printing, power plant equipment operation and maintenance management, system diagnosis, software development And training functions.
The local control layer can realize the main functions of data collection and processing, safe operation monitoring, real-time control and adjustment, time sequence detection, data communication, and system word diagnosis.
Contact: Mr. Huang
Mobile: + 86-18942948612
Phone: + 86-027-59200207
Address: Wuhan East Lake High-tech Development Zone, Wuhan University Science and Technology Park, Wudayuan 1st Road, 9-2