描述
一、产品定位与核心优势
中端AVR定位：
UNITROL 1005-0011 ECO是UNITROL 1000系列中的经济型（ECO）版本，适用于额定功率1MW-50MW的同步发电机，满足中小型发电站对电压稳定性、成本效益和易维护性的综合需求。
与上一代UNITROL 5000系列相比，UNITROL 1005-0011 ECO的硬件体积缩小40%（3U机架式vs 6U机架式），功耗降低30%（<50W vs<70W），但电压调节精度（±0.25%UN）和动态响应速度（<50ms）保持一致，适用于空间受限或节能要求高的场景。
与同系列UNITROL 1005-0021（标准版）相比，ECO版本取消了冗余电源模块和部分高级通信接口（如Profibus-DP），但核心功能（电压调节、励磁控制、保护逻辑）完全保留，成本降低约25%，适合预算有限的项目。
核心价值：
提升发电质量：通过高精度电压调节和低谐波输出，确保发电机端电压稳定在额定值（±0.25%UN），减少电压波动对电网和用电设备的影响（如电机过热、照明闪烁）。
增强系统可靠性：采用双通道冗余设计（CPU、测量、控制），支持无扰切换（<10ms），避免单点故障导致的电压崩溃；内置自诊断功能，可实时监测硬件状态、传感器信号、通信链路，提前预警潜在故障。
降低运维成本：支持远程参数配置和故障记录下载，减少现场调试时间；模块化设计允许在线更换故障部件（如电源模块、I/O板），缩短停机时间。
二、核心功能与特性
1.高精度电压调节能力
测量精度：
电压传感器：采用16位A/D转换器，采样频率10kHz，可精确测量发电机端电压（0-150%UN）和励磁电压（0-500V），测量误差<±0.1%FS。
电流传感器：支持外部CT输入（可选），测量发电机定子电流（0-5A），用于功率因数调节（PFR）和过流保护。
调节算法：
PID控制：内置自适应PID算法，可根据发电机负载变化自动调整比例（P）、积分（I）、微分（D）参数，确保电压稳定（动态响应时间<50ms，超调量<2%）。
功率因数调节（PFR）：通过测量定子电流和电压相位差，自动调节励磁电流，使发电机功率因数维持在设定值（0.8-1.0滞后），提高发电效率（可提升2%-5%）。
无功功率调节（QFR）：支持按设定值调节无功功率（如±50%QN），适用于电网电压支撑或功率因数补偿场景。
1.Product positioning and core advantages
Mid-range AVR Positioning:
UNITROL 1005-0011 ECO is an economical(ECO)version in the UNITROL 1000 series,suitable for synchronous generators with a rated power of 1MW-50MW to meet the combined demands of small and medium-sized power plants for voltage stability,cost-effectiveness and ease of maintenance.
Compared with the previous generation UNITROL 5000 series,the UNITROL 1005-0011 ECO has a 40%reduction in hardware volume(3U rack vs 6U rack),a 30%reduction in power consumption(<50W vs<70W),but the voltage regulation accuracy(±0.25%UN)and dynamic response speed(<50ms)are consistent,suitable for scenarios with space-constrained or high energy-saving requirements.
Compared with the same series UNITROL 1005-0021(standard version),the ECO version eliminates redundant power modules and some advanced communication interfaces(such as Profibus-DP),but the core functions(voltage regulation,excitation control,protection logic)are completely retained,and the cost reduction is about 25%,suitable for projects with limited budgets.
Core Values:
Improve power generation quality:through high-precision voltage regulation and low harmonic output,ensure that the generator terminal voltage is stable at the rated value(±0.25%UN),reducing the impact of voltage fluctuations on the power grid and electrical equipment(such as motor overheating and lighting flickering).
Enhanced system reliability:adopts a dual-channel redundant design(CPU,measurement,control),supports interference-free switching(<10ms),avoiding voltage crashes caused by single point of failure;built-in self-diagnosis function,which can monitor hardware status,sensor signals,and communication links in real time,and warning of potential faults in advance.
Reduce operation and maintenance costs:Support remote parameter configuration and fault record download,reducing on-site debugging time;modular design allows online replacement of faulty components(such as power modules,I/O boards)to shorten downtime.
2.Core functions and characteristics
1.High-precision voltage regulation capability
Measurement accuracy:
Voltage sensor:adopts a 16-bit A/D converter with a sampling frequency of 10kHz,which can accurately measure the generator terminal voltage(0-150%UN)and excitation voltage(0-500V),and the measurement error is<±0.1%FS.
Current sensor:Supports external CT input(optional),measuring generator stator current(0-5A),for power factor regulation(PFR)and overcurrent protection.
Adjustment algorithm:
PID control:Built-in adaptive PID algorithm,which can automatically adjust the proportion(P),integral(I),and differential(D)parameters according to the generator load change to ensure the stability of the voltage(dynamic response time<50ms,overshooting amount<2%).
Power factor adjustment(PFR):By measuring the stator current and voltage phase difference,the excitation current is automatically adjusted,so that the generator power factor is maintained at the set value(0.8-1.0 hysteresis),and the power generation efficiency can be improved(can be increased by 2%-5%).
Reactive Power Adjustment(QFR):Supports the adjustment of reactive power(such as±50%QN)according to the set value,suitable for grid voltage support or power factor compensation scenarios.
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