论文标题
一种用于协调电压调节器与智能逆变器的监督电压/VAR控制方案
A Supervisory Volt/VAR Control Scheme for Coordinating Voltage Regulators with Smart Inverters on a Distribution System
论文作者
论文摘要
本文着重于在分配系统上有效使用智能逆变器（VVC）。新的智能逆变器提供VAR支持功能，但为了有效使用，它们需要与现有的Volt/var方案协调。提出了一种新的VVC计划来促进这种协调。提出的方案将问题分为两个级别。第一层使用负载TAP更换器（LTC）和电压调节器（VRS），并与智能逆变器协调其控件，以调节电路上的电压电平，以使电路沿电路范围内的电压保持在所需的范围内。第二层确定智能逆变器所需的VAR支持，以最大程度地减少电路中的整体功率损失。监督控制的结果发送到具有本地控制器的设备。为了避免频繁调度，智能逆变器可以根据需要移动其Volt/var特性来监督。这使智能逆变器可以在满足分配系统上有限的沟通要求的同时接近其最佳控制。使用IEEE 34总线系统的案例研究显示了与传统的Volt/var方案相比，该监督控制方案的有效性。
This paper focuses on the effective use of smart inverters for Volt/Var control (VVC) on a distribution system. New smart inverters offer Var support capability but for their effective use they need to be coordinated with existing Volt/Var schemes. A new VVC scheme is proposed to facilitate such coordination. The proposed scheme decomposes the problem into two levels. The first level uses Load Tap Changer (LTC) and Voltage Regulators (VRs) and coordinates their control with smart inverters to adjust the voltage level on the circuit to keep the voltages along the circuit within the desired range. The second level determines Var support needed from smart inverters to minimize the overall power loss in the circuit. The results of the supervisory control are sent to the devices which have their local controllers. To avoid frequent dispatch, smart inverters are supervised by shifting their Volt/Var characteristics as needed. This allows for the smart inverters to operate close to their optimal control while meeting the limited communication requirements on a distribution system. A case study using the IEEE 34 bus system shows the effectiveness of this supervisory control scheme compared to traditional volt/var schemes.
