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Creation Beyond Imagination Shanghai Electric
QUANG NINH phase I 2×300MW project
EXCITATION SYSTEM PART
Presentation by Zhao Zhengyu
JAN,2009
内 容Contents
1. 总体介绍 General instruction
2. 励磁控制系统
Control part of excitation system
3. 励磁变压器
Excitation transformer
General Instruction
300MW 等级配有 2 种具有高起始相应的励磁方式
Two alternatives of excitation systems with high initial response (HIR) characteristic for the 300MW class turbo-generator
无刷励磁方式 Brushless excitation system
静态励磁方式 Static excitation system
Brushless excitation systemGeneral Instruction
Brushless exciter (main exciter) and permanent magnet generator (PMG)
Assembly of BLE and PMG
General Instruction
Static excitation system
QUANG NINH phase I
General Instruction
内 容Contents
1. 总体介绍 Main instruction
2. 励磁控制系统
Control part of excitation system
3. 励磁变压器
Excitation transformer
励磁控制系统 Control part of excitation system
1) 系统原理 Principle of control system2) 辅助控制板 Auxiliary control panel3) 主控机箱 Main control box 4) 信号联络 Signal communication5) 限制器 Limit functions
Control part of excitation system
1) Principle of control system
A. 系统原理框图 Principle diagram
B. 功率柜 Rectifier cubicle
C. 起励装置 Field flash equipment
D. 灭磁及过电压保护柜
De-excitation and field over-voltage protect cu
bicle
当地控制、指示远方控制、发信人机界面、 LCU
LT励磁调节器
LT励磁调节器
MCB起励、灭磁及过压保护
MCB起励、灭磁及过压保护
G1...G3励磁功率柜 1 至 3 面
G1...G3励磁功率柜 1 至 3 面
G
LB 励磁变压器LB 励磁变压器 同步变压器同步变压器
励磁电流变换器
发电机电 流
发电机电 压
发电机电 压
同步发电机 灭磁开关
~=~=
P-486DX ( AVR ) I 通道 脉冲放大
量测变压器
D
AI /O
CPU CTR
适配器
~=~=
P-486DX (AVR) 脉冲变换II 通道
脉冲放大量测变压器
D
A I /O
CPU
CTR
适配器
励磁电压变换器
A. Principle diagram
1. 主电路型式选择 Main circuit
电路选用三相全控桥整流电路 , 采用自并激励磁方式 , 励磁变压器采用 Y/Δ-11 接线方式。
Adopt static excitation system
Adopt 3 phase full control rectifier bridge circuit.
A three phase excitation transformer dry type with epoxy resin.
主电路简图 Simple drawing of main circuit
功率柜采用 3 柜并联方式。 3 Rectifier cubicles parallel connect
B. Rectifier cubicle
3 3 2
UfdU2LU1L
Ifd
Y/-11
Main circle drawing
2. 容量与晶闸管选择 thyristor
冷却方式 Cooling method
热管散热器 + 强迫通风设备 Radiator and force air cooler
均流措施 Current equalization method
可控硅筛选工艺 + 等长电缆
Select thyristors and equal length wire
B. Rectifier cubicle
高反压大电流晶闸管
High reverse voltage and high current thyristor
热管散热器 High efficient radiator
辅助风冷增加出力 Auxiliary fans increase output
交直流过压保护 A.C and D.C side over-voltage protect
内置脉冲放大单元 Pulse amplification unit
10KV 耐电压脉冲变压器 10kV pulse transformer
>90% 均流系数 equal current coefficient > 90%
N-1 冗余方式 N-1 redundancy
B. Rectifier cubicle
C. Field flash equipment
交流起励 A.C field flash
直流起励装置 D.C field flash
V5 R
V2
A.C field flash A.C field flash drawingdrawing
V1 V3
V4
T1
V6
V7
D. De-excitation and field over-voltage protect cubicle
1. 关于灭磁开关的选型 Field breaker
F
FMK
灭磁开关+线性电阻灭磁Field breaker and linear resistance
RMC
D
U
F
FMK
灭磁开关+非线性电阻灭磁Field breaker and non-linear resistance
RMC
+
2. 灭磁电阻的选型 Absorb resistance
线性灭磁电阻 Linear resistance
非线性灭磁电阻 Non-linear resistance
D. De-excitation and field over-voltage protect cubicle
3. 转子过电压保护 Field over-voltage protect
轴 电 压 吸 收装置
Shaft voltage absorb
R
R
C
C
C1
KM2
直流侧灭磁及过电压保护原理图 Principle diagram of D.C side de-e
xcitation and field over-voltage protect
R5 C
4
R1
RV1
RV2
R6
F1
RMC
V1
KC1
LQ
MK
+
_
MK
D. De-excitation and field over-voltage protect cubicle
移能型灭磁开关 Field circuit breaker
灭磁电阻、转子过电压保护装置
Resistance and field over-voltage protect equipment
轴电压吸收装置、起励装置 Shaft voltage absorb and field flash equipment
D. De-excitation and field over-voltage protect cubicle
2) 辅助控制板 Auxiliary control panel
直流适配板 D.C adapt panel互感器板 CT & PT panel适配板 Adapt panel光隔离输入板 Optics-isolate input panel光隔离输出板 Optics-isolate output panel脉冲形成板 Pulse forming panel脉冲预防板 Pulse-pre-amplifier panel脉冲末放板 Pulse final amplifier panel脉冲监视板 Pulse surveillance panel通道切换板 Logic switch panel
直流适配板 D.C adapt panel
互感器板 CT & PT panel
适配板 (1) Adapt panel
适配板 (2) Adapt panel
光隔离输入板 Optics-isolate input panel
光隔离输出板 Optics-isolate output panel
脉冲形成板 Pulse forming panel
脉冲预防板 Pulse-pre-amplifier panel
脉冲末放板 Pulse final amplifier panel
脉冲监视板 Pulse surveillance panel
通道切换板 Logic switch panel
3) Main control box
在调节器的位置
Position in AVR cubicle
主控机箱 Main control box
CPU 板( CPU) CPU panel
CDT800板( C800) CDT 800 panel
CSD板( CAN) CSD panel
DM5810 板( D5810) DM 5810 panel
DM406 板( D406) DM 406 panel
CPU 板技术特点 CPU panel 高速嵌入式 486DXCPU :主频 66MHZ ; 66Mhz high speed embedded 486DXCPU
内置浮点运算协处理器; 32 bit floating point calculation processor embedded
在板内存: 4M ~ 64M(32 位操作 ) ; 4M~64M memory in panel
两个 16C550 高速串行口; Two 16C550 high speed series interface
一个双向数据并行口; 1 two-direction parallel interface
CPU 板技术特点 CPU panel
7 个 DMA , 14 级中断, 3 个计数器; 7 DMA,14 levels interrupt, 3 counters
PC/AT 键盘接口, 0.1W 扬声器接口; PC/AT keyboard interface, 0.1w loudspeaker interface
实时时钟; Real-time clock
在板固态盘 (SSD) 插座支持; SSD interface
CPU 板技术特点 CPU panel
64K ~ 1M 字节 EPROM SSD( 无需跳线 ) ; 64k~1M bytes EPROM SSD
看门狗保证系统不死机; Watch dog function
电源要求:+ 5V , 1.8 ~ 4.8W ; Power requirement: +5V , 1.8~4.8W
数字脉冲形成板 -CDT800 板技术特点Digital pulse forming panel – CDT800
5 个 16 位计数 / 定时器; 5 16bits counters/timer
在板频率源: 5MHZ ; Frequency source in panel: 5Mhz
16 路可编程 TTL/CMOS 数字量 I/O ; 16 programmable TTL/CMOS digital I/O
电源要求: + 5V , ±5% ; Power requirement: +5V, ±5%
数字脉冲形成板 -CDT800 板技术特点
Digital pulse forming panel – CDT800 直接与 PC/104CPU 模块及扩展模块相栈接; Direct connect to PC/104 module
结构紧凑 ,PC/104 标准尺寸: 90×96mm ; Compact package :90mm×96mm
低功耗、坚固和高可靠。 Low power consumption, solid frame and high reliability
SysExpanModule/CSM板技术特点
Feature of SysExpanModule/CSM 2 个相互独立、符合 CAN 协议
2.0B 的 CAN总线控制器; 2 independent CAN 2.0B control bus
2 个相互独立的串行通信口,每个串口
均可设置为 RS232C/RS485/RS422 工作模式;
2 independent series communication interface.
RS232C/RS485/RS422 standard can be use.
1 个完全 Centronics兼容的双向并口; 1 two-direction parallel interface
SysExpanModule/CSM板技术特点
Feature of SysExpanModule/CSM CAN总线收发速率可编程设定,速率范围为 5 kb/s ~ 1000 kb/s ,分 11 级;
CAN bus transfer rate can be set, 5kb/s~1000kb/s,11 levels
WATCHDOG 及 EEPROM 功能,重要现场数据可自动保存; Watchdog function and EEPROM, save important data on site
CAN总线接口以光电耦合隔离,自带隔离电源,隔离电压达 1500V以上;
CAN bus interface optoelectronic isolated, power own supplied, isolate voltage more than 1500V
SysExpanModule/CSM板技术特点
Feature of SysExpanModule/CSM ·PC/104 标准尺寸( 90×96mm ),与
PC/104 CPU 及扩展板直接栈接;
Direct connect to PC/104 CPU module
·DC+5V 操作电压,低功耗的 CMOS
电路设计。电源消耗 250mA ;
Power requirement: +5V, 250mA .
开关量 I/O板 -DM5810 板技术特点
Feature of switch value I/O panel-DM5810
8 路可编程 TTL/CMOS 数字量 I/O ; 8 programmable TTL/CMOS I/O
三个 16 位、 8MHZ 定时器; Three 16bits and 8Mhz timers
电源要求: 单+ 5V , ±5% ; Power requirement: +5V, ±5%.
开关量 I/O板 -DM5810 板技术特点
Feature of switch value I/O panel-DM5810
直接与 PC/104CPU 模块及扩展模块相栈接; Direct connect to PC/104 module
结构紧凑 ,PC/104 标准尺寸: 90×96mm ; Compact package :90mm×96mm
低功耗、坚固和高可靠。 Low power consumption, solid frame and high reliability
A/D/A转换板 -DM406板技术特点
Feature of A/D/A transfer panel-DM406 16 路模拟量输入 (A/D) ; 16 analog value input (A/D)
2 路 12 位模拟量输出 (D/A) ; Two 12bits analog value output (D/A)
100K 采样频率、 12 位精度; Sample frequency: 100k , accuracy: 12 bits.
三种模拟输入范围: ±5V , ±10V , 0 ~ 10V ; Analog input range: ±5V , ±10V , 0 ~ 10V
过压保护: ±35V ;
Over-voltage protect: ±35V
A/D/A转换板 -DM406板技术特点
Feature of A/D/A transfer panel-DM406 三个 16 位、 8MHZ 定时器; Three 16bits and 8 Mhz timer.
24 路 TTL/CMOS兼容的数字量 I/O ; 24 TTL/COMS I/O
直接与 PC/104CPU 模块及扩展模块相栈接; Direct connect to PC/104 module
结构紧凑 ,PC/104 标准尺寸: 90×96mm ; Compact package :90mm×96mm
低功耗、坚固和高可靠。 Low power consumption, solid frame and high reliability 。
灭磁开关
励磁变压器
LEM
COM
DM5810
AC380V
I I开关量入( 24V/ 5V) I SOI 1- 1 I SOI 1- 2
CT
LB
DM5810
模拟量输入- I I适配板
ADP
Uga,Ugb,Ugc
CPU486DX- 66MHDI SKONCHI P
励磁电流量测
- I互感器ADP1
号输出
DDP- I I
阻 容 保 护
起励
IF
Iga,Igb,Igc
DM406
继电器信 脉冲隔离变 0098
起励变压器
DM406
- I脉冲监视 PPS
CPU486DX- 66MHDI SKONCHI P
CDT800
液晶显示,键盘
同步变压器
( 220V/ 24V)隔离输入 0100 0101,
Iga,Igb,Igc
GS
- I I互感器ADP1
- I开关量出( 5V/ 24V) I SOI 2- 1 I SOI 2- 2
Usa,Usb,Usc
PT1
- I脉冲形成 I PB
- I脉冲监视 PPS
COM
I F IF
液晶显示,键盘
模拟量输入- I适配板
ADP
PT2
- I脉冲预放 PPA
CDT800
I I开关量出( 5V/ 24V) I SOI 2- 1 I SOI 2- 2
- I脉冲形成 I PB
- I脉冲预放 PPA
- I开关量入( 24V/ 5V) I SOI 1- 1 I SOI 1- 2
脉冲末级放大 PPF 0097或
Usa,Usb,Usc
Ug1, Uk
Uga,Ugb,Ugc
DDP- I
4)Singnal communication
5) 限制器 Limit functions
最大励磁电流限制 Maximum field current limiter
V/Hz 限制 V/Hz limiter
低励限制 Under-excitation limiter (P/Q Limiter)
内 容Contents
1. 总体介绍 Main instruction
2. 励磁控制系统
Control part of excitation system
3. 励磁变压器
Excitation transformer
3. 励磁变压器 Excitation transformer
油浸式变压器(室外安装)干式变压器(室内安装)
Basic Parameter Type 3-phase, dry type Capacity 3150kVA Primary voltage 20kV Full-load secondary voltage (line to line) 660V Frequency 50Hz Connection group Yd11 Insulation class F Reactance 7-8% Installation environment Indoor Cooling method AN/AF Temperature controller at transformer Protection degree (shell) IP21 BIL 125kV PFW 55kV, 50Hz, 1 min. Temperature rise/Maximum temperature 100K/155C(at rated load and rated cooling air temperature)
励磁变压器特点
Feature of excitation transformer A three phase excitation transformer, dry type with epoxy resin,
isolation class 155(F).
Electric shield between primary and secondary winding of transformer
The transformer equipped with a temperature detector device and the measurement and alarm signals can be transmitted to DCS.
Pay great attention to the electric loss increased due to harmonic component in the current wave.
Excitation transformer capacity meets with the requirement of field forcing and all kinds of generator operation condition.
CTs for measurement and protection could be arranged on low voltage and high voltage terminals.
The final data of transformer can be mutually agreed with customer based on specific requirements.
Thanks!