*Article* **Multidimensional Optimal Droop Control for DC Microgrids in Military Applications**

### **Kaitlyn J. Bunker 1,2,\*, Michael D. Cook <sup>3</sup> , Wayne W. Weaver <sup>1</sup> and Gordon G. Parker <sup>3</sup>**


Received: 30 September 2018; Accepted: 16 October 2018; Published: 18 October 2018

**Abstract:** Reliability is a key consideration when microgrid technology is implemented in military applications. Droop control provides a simple option without requiring communication between microgrid components, increasing the control system reliability. However, traditional droop control does not allow the microgrid to utilize much of the power available from a solar resource. This paper applies an optimal multidimensional droop control strategy for a solar resource connected in a microgrid at a military patrol base. Simulation and hardware-in-the-loop experiments of a sample microgrid show that much more power from the solar resource can be utilized, while maintaining the system's bus voltage around a nominal value, and still avoiding the need for communication between the various components.

**Keywords:** solar; microgrid; droop control; patrol base
