高比例新能源电力系统的构建伴随着以常规同步机惯量/一次调频资源的降低，需要考虑构建多元资源提供惯量/一次调频的辅助服务市场。因此，提出了多元资源电能量和惯量/一次调频辅助服务两阶段联合出清机制，建立了包含储能、风电、光伏和频率支撑型负荷的联合出清优化模型。在考虑频率安全约束的预出清中得到系统所需各类辅助服务资源容量和启停情况，在正式出清模型中考虑简单的惯量和一次调频辅助服务容量需求约束，在计及频率安全的基础上市场定价更为简单透明。对改进IEEE 39节点系统的算例仿真结果表明所提两阶段市场出清机制是有效的。

The construction of a high proportion of new energy power systems is accompanied by a reduction in inertia/primary frequency regulation(PFR) resources with conventional synchronous machines. In order to address this, it is necessary to consider the construction of ancillary service market with multiple type resources to provide inertia and primary frequency regulation. In this paper, a two-stage joint clearing mechanism considering multiple type resources electrical energy and inertia/PFR ancillary service is proposed, and a joint clearing optimization model including energy storage, wind power, photovoltaic and frequency-supported loads is established. The capacity of all kinds of ancillary service resources required by the system and the start and stop of each resource are solved in the security constrained unit commitment(SCUC) pre-clearing model considering the frequency security constraints. In the formal clearing model, the simple inertia and the demand constraint of PFR ancillary service capacity are considered, and the market pricing is simpler and more transparent taking into account frequency security. The simulation results of the improved IEEE 39-node system demonstrate the effectiveness of the proposed two-stage market clearing mechanism.