Quantum-Enhanced Reinforcement Learning for Power Grid Security Assessment
This addresses power grid security for operators by providing a novel hybrid quantum-RL approach, though it appears incremental as it builds on existing RL methods with quantum enhancements.
The paper tackled the challenge of scaling reinforcement learning for power grid security assessment by integrating quantum computing, resulting in improved computational efficiency and agent proficiency, with demonstrated performance relative to a non-quantum benchmark in N-k contingency analysis.
The increasingly challenging task of maintaining power grid security requires innovative solutions. Novel approaches using reinforcement learning (RL) agents have been proposed to help grid operators navigate the massive decision space and nonlinear behavior of these complex networks. However, applying RL to power grid security assessment, specifically for combinatorially troublesome contingency analysis problems, has proven difficult to scale. The integration of quantum computing into these RL frameworks helps scale by improving computational efficiency and boosting agent proficiency by leveraging quantum advantages in action exploration and model-based interdependence. To demonstrate a proof-of-concept use of quantum computing for RL agent training and simulation, we propose a hybrid agent that runs on quantum hardware using IBM's Qiskit Runtime. We also provide detailed insight into the construction of parameterized quantum circuits (PQCs) for generating relevant quantum output. This agent's proficiency at maintaining grid stability is demonstrated relative to a benchmark model without quantum enhancement using N-k contingency analysis. Additionally, we offer a comparative assessment of the training procedures for RL models integrated with a quantum backend.