At the distribution level, the traditional approach of pricing for voltage control ancillary service shows certain disadvantages as it considers only production costs. For the optimized procurement and pricing of active power and reactive power provision from reactive power compensating devices (RPCDs) such as APFCs, D-STATCOM and converter-controlled distributed generators (CCDGs), its location, availability, as well as its capability, are of utmost importance. For better pricing signals, the pricing structure for active power and reactive power compensation service needs to consider all major cost components like depreciation cost, cost of losses, capital cost, and balance of system cost. In this work, an attempt has been made to address the procurement and pricing issues at distribution level, by proposing optimized active power and reactive power management (OARPM) and developing ‘Extended Nodal Pricing Function' (‘ENPF’) for its pricing. This is specially developed for pricing the optimized active power and reactive power provision cost through RPCDs and CCDGs installed in grid-connected microgrid at distribution level achieving system performance improvement and bring economic savings. To test the impact of proposed OARPM and ENPF, five different cases are analyzed using Indian real-time distribution system data. The impact of proposed methodology is observed on 5 aspects of system performance that are dispatch of active power and reactive power, power losses minimization, objective function cost minimization, active power and reactive power DLMP and voltage control. The methodology is generic to implemented for pricing in any electricity market.

在配电层面，传统的电压控制辅助服务定价方法显示出一定的缺点，因为它只考虑生产成本。为了优化无功功率补偿装置 (RPCD)（例如 APFC、D-STATCOM 和变流器控制的分布式发电机 (CCDG)）的有功功率和无功功率供应的采购和定价，其位置、可用性及其能力，至关重要。为了获得更好的定价信号，有功功率和无功功率补偿服务的定价结构需要考虑所有主要成本组成部分，例如折旧成本、损耗成本、资本成本和系统成本平衡。在这项工作中，尝试解决分销层面的采购和定价问题，通过提出优化的有功功率和无功功率管理（OARPM）并为其定价开发“扩展节点定价功能”（“ENPF”）。这是专门为通过安装在配电级并网微电网中的RPCD和CCDG对优化的有功功率和无功功率提供成本进行定价而开发的，从而提高系统性能并带来经济节约。为了测试拟议的 OARPM 和 ENPF 的影响，使用印度实时配送系统数据分析了五个不同的案例。所提出的方法对系统性能的 5 个方面的影响进行了观察，即有功功率和无功功率的调度、功率损耗最小化、目标函数成本最小化、有功功率和无功功率 DLMP 以及电压控制。